Distributed throughout the coastal tropical and sub tropical waters of the Indo-west Pacific, the dugong (Dugong dugon) is considered rare over much of its range and listed by the IUCN (1996) as vulnerable to extinction. The largest numbers of dugongs are believed to occur in Australian waters. The main threats to dugong numbers are anthropogenic activities, such as accidental netting, habitat deterioration and Indigenous hunting. The primary objective of this study is to recognise intraspecific genetic subdivision for dugong management. Complementing ecological studies, these findings have immediate and practical relevance to the conservation management of the dugong.. Genetic material was sampled from various types of dugong tissue including skin, muscle, bone, and their faeces. Advances upon established sampling approaches for marine mammals include a biopsy system tailored to dugongs and the extraction, amplification and sequencing of dugong DNA from their faeces. Samples from ...

Let me show you about marine mammals on The Dugong Facts. Dugong has a medium sized body. Dugong has a close relationship with Hydrodamalis gigas or Stellers sea cow. Dugong is considered as a unique mammal because it is herbivorous. The main diet of dugong is sea grass. There is no need to wonder that dugong lives in the area filled with seagrass. Therefore, the people can spot dugong in inter-reefal waters, bays, water of inshore islands and mangrove channels. Check other facts about dugong in the following post below:. ...

Archaeological evidence confirms exploitation of Dugongs by early humans. As long as 6,000 years ago, Dugongs on the small island of Akab in the United Arabian Emirates were hunted for food (Méry et al. 2009). Excavations in the Torres Strait, Australia, has revealed that Dugong hunting in this region dates back at least 4,000 years and possibly up to 7,000 years (Crouch et al. 2007, Wright 2010) and that the harvest has been substantial for at least 400-500 years (McNiven and Bedingfield 2008). Although hunting is now legally banned in most countries, there are important exceptions for the subsistence use by traditional peoples. In Australia, the Dugong hunting rights of Native Title Holders (indigenous people who can prove continuous connections to their traditional land and sea country) have been consistently upheld by the courts in a series of landmark decisions since 1993. Dugong hunting still has considerable cultural significance to coastal Aboriginal and Torres Strait Islander peoples ...

New Caledonia is at the eastern limit of the dugongs range. In June 2003 standardized dugong aerial survey methodology was used to estimate the abundance and distribution of dugongs in the coastal waters of New Caledonia, resulting in a population estimate of 1,814 ± SE 332. This represents the largest concentration of dugongs in Melanesia and one of the largest populations in the world, outside Australia and the Arabian region. Calves comprised 7.2% of the population. The observed density of dugongs was highest in the center and southern part of the west coast of the island but not significantly different from the density on the north west and north east. In the central west region, sightings were associated with a pass in the barrier reef and up to a third of the on-survey sightings were outside of the barrier reef. The dugong distribution we observed during June 2003 differs from the reported locations of historical hunts in several respects. ...

A DEAD dugong washed up on Cooya Beach last week has reignited de-bate over gill net-ting and high-lighted its im-pact on the lo-cal fish, dugong and tur-tle pop-u-la-tion.. While the dugong has no mark-ings to prove the cause of death, co-or-di-na-tor for the Net-work for Sus-tain-able Fish-ing in the Dou-glas re-gion David Cook, who has spent 25 years in com-mer-cial fish-eries, be-lieves the dugong was drowned by a net.. Dr Jen-nie Gil-bert ex-am-ined the photo of the dead dugong and said a starved dugong has a look about it - the head has a very dis-tinct sunken shape like a peanut and that an-i-mal didnt, he said.. I think the most likely cause of death was nets, I have had re-ports there is a sig-nif-i-cant level of il-le-gal net-ting go-ing on in ad-di-tion to le-gal net-ting.. There has been a sig-nif-i-cant de-cline over the past decade in the numbers of dif-fer-ent species of in-shore fish, in-clud-ing trevally, queen-fish, milk-fish, blue and king salmon, grey mack-erel and ...

Whether Stellers sea cow had any natural predators is unknown. It may have been hunted by killer whales and sharks, though its buoyancy may have made it difficult for killer whales to drown, and the rocky kelp forests in which the sea cow lived may have deterred sharks. According to Steller, the adults guarded the young from predators.[6]. Steller described an ectoparasite on the sea cows that was similar to the whale louse (Cyamus ovalis), but the parasite remains unidentified due to the hosts extinction and loss of all original specimens collected by Steller.[15] It was first formally described as Sirenocyamus rhytinae in 1846 by Johann Friedrich von Brandt. It was the only species of cyamid amphipod to be reported inhabiting a sirenian.[16] Steller also identified an endoparasite on the sea cows, which was likely an ascarid nematode.[12]. Like other sirenians, Stellers sea cow was an obligate herbivore and spent most of the day feeding, only lifting its head every 4 to 5 minutes for ...

Dugongs are large creatures, up to 3 meters long and weighing 400 kilograms. Even though they have small ears and eyes, their hearing and eyesight are excellent. Their heads are round and the mouth on then large fleshy snout faces down towards the seabed, which makes it easy for dugongs to feed on their favourite food - the young shoots of sea grasses. These grow in the muddy beds of shallow waters in northern Australia. Because they graze on sea grasses, dugongs are commonly called sea cows. Dugongs also have moustaches - heavy bristles that are excellent tor helping find the sea grasses in the murky water stirred up when they tear out the whole plant, roots and all. They manoeuvre the sea grasses into their mouths with their sensitive upper lip ...

In the US, marine mammals in the US are protected by the Endangered Species Act (ESA) and the Marine Mammal Protection Act (MMPA). Most of these species are listed by CITES and thus international trade in their products is restricted. Therefore, commercial sale of unfossilized marine mammal bone is largely prohibited. Sale of Stellers sea cow (Hydrodamalis gigas) bone is legal, however, since the animals have been extinct since 1768. The current study outlines a simple test that can identify bone which is bona fide Stellers sea cow - and thus legal to sell. The test uses a segment of the D-loop of the mitochondrion, which has the power to exclude samples which are not specifically H. gigas or a Sirenian relative. The test also includes a reliable method to extract DNA from bone and amplify it using PCR. Extracted DNA was sequenced to verify that only manatees, dugongs, elephants and their relatives produced a positive result. Using this test, products being sold commercially as legal

The Memorandum of Understanding on the Conservation and Management of Dugongs and their Habitats throughout their Range (Dugong MOU) aims to promote internationally coordinated actions to ensure the long-term survival of dugongs and their seagrass habitats throughout their extensive range. The MOU entered into effect on 31 October 2007 in Abu Dhabi, United Arab Emirates. The Dugong MOU is administered by a Secretariat based in Abu Dhabi alongside the Raptors MoU Coordinating Unit at the CMS Office - Abu Dhabi.

Dugongs Nature Stock Footage 4K video and Royalty Free stock video footage from leading cinematographers. Free video download of preview Dugongs video clips

Dugong Dive Center offers dugong watching tours, Apo Reef Day trips and liveaboards, and diving on World War wrecks. Learn more today!

Dugong Dive Center offers dugong watching tours, Apo Reef Day trips and liveaboards, and diving on World War wrecks. Learn more today!

Look at the hand/flipper, its huge, and very dugong or manatee like (see the more detailed picture below). You see, G. W. Steller was one of the few persons to give an account of H. gigas from observing live (or recently killed) specimens (and hence the name Stellers sea cow). His description of the hand is significant because the morphology is unlike that of any other known sirenian (Steller, 1899). According to Stellers description, the forelimb of H. gigas had no fingers, in fact he describes the ends of the limb as having a posteriorly oriented hook-like structure made up of, most likely, stratified squamous keratinized epithelium (thickened hardened skin). The habitat of H. gigas were shallow waters where feeding would have exposed them to higher wave action, therefore the loss of fingers as well as having a hardened pad or surface would have provided more traction when using the forelimbs as propulsion or stabilization in these shallower waters. Domning (1978) concluded from the ...

7-9.5 mya. This extinct sirenian was found in the Lower Bone Valley formation of the phosphate mines of Polk County, Florida, in 1978 by Melvin McClain. Its modern relatives are the manatees and modern dugong (dugong dugon).

Stellers sea cow was unknown to science until 1741, when it was described by German naturalist Georg W. Steller, who accompanied Vitus Bering on his voyage of discovery in the North Pacific. No preserved specimens exist today, but the sea cow was certainly the largest sirenian. Reaching a length of 9-10 metres (over 30 feet) and a weight of perhaps 10 metric tons (22,000 pounds), it was much larger than present-day manatees and dugongs. Like the dugong, the sea cow had a relatively small head and a broad, horizontal forked tail fluke. Small stumpy flippers near the front of the body were used for moving over rocky areas and for holding fast to rocks in rough seas. The barklike skin was dark brown, sometimes streaked or spotted with white. Sea cows had no teeth; instead, they relied on horny plates in the mouth to compact their soft food, which consisted of kelp and seaweed near the oceans surface along the shore. They floated at the surface but had little ability to submerge and thus were easy ...

This preliminary study, conducted between June and October 2009, represents the first comprehensive survey of the dugong population and its habitat in northern Madagascar. It provided the means for piloting a low-cost, low-tech methodology, previously utilized with success in the Union of the Comoros, and only minor adaptations were necessary for its application in Madagascar, hence the resulting data are comparable.

The sea cow grew at least 8 metres (26 ft) to 9 meters or 30 feet long, much larger than the manatee or dugong. Stellers work contains two contradictory weights: 4 and 24.3 tons. The true value probably lies between these figures, around 8-10 tons. It looked somewhat like a large seal, but had two stout forelimbs and a whale-like tail and the fluke. According to Steller, The animal never comes out on shore, but always lives in the water. Its skin is black and thick, like the bark of an old oak…, its head in proportion to the body is small…, it has no teeth, but only two flat white bones-one above, the other below. It was completely tame, according to Steller. They fed on a variety of kelp. Wherever sea cows had been feeding, heaps of stalks and roots of kelp were washed ashore. The sea cow was also a slow swimmer and apparently was unable to submerge. ...

The Dugong, and its close cousin the Manatee, have long been thought by zoologists to be the source of the mermaid legends. It is very common for female Dugongs to nurse their young while floating on their backs, and holding the calf in their armlike flippers. From a distance, the two Dugongs may resemble a fish-tailed woman holding a baby. Personally, I think any sailor mistaking the blubbery, walrus-like Dugong for a mermaid has obviously been at sea far too long.. ...

With the help of her friends from Community Centred Conservation (C3), Diwa the Dugong has been busy raising awareness of dugongs from Busuanga and Ortigas City. C3 Philippines team conducted awareness campaign on dugong conservation in Calawit National High school and Barangay Bogtong. The team distributed Dugong-Seagrass posters and Diwa the Dugong books for teachers…

Neptune Energy has announced the discovery of hydrocarbons at the Dugong well, which is located in the Norwegian part of the North Sea.

Watch free videos of marine animals like Dolphins, whales, turtles, crocodile,dugongs, fishes, rays, planktons, etc. Enjoy and try to learn about the future source of food for human beings. The videos are added every day keep watching & enjoy! Read more about this animals at this web site http://marineanimalnews.blogspot.com. ...

Dugongs are related to elephants; they weigh up to 400kg and have hairy backs, so just how anyone could mistake one for a mermaid is beyond me. You would have had to have been out at sea for a very, very long time indeed ...

ILOILO CITY - Wala nangin upang ang sablag sa lawas sang isa Person With Disability (PWD) agud magdonar sang dugo sa Dugong Bombo sang Bombo Radyo Philippines.. Sa interview sang Bombo Radyo kay June Saluba, Presidente sang mga PWDs sa Distrito sang Molo, bugalon ini nga nangin kabahin kag nangin successful blood donor sa Dugong Bombo 2017.. Dugang pa ni Saluba, apisar sang iya sitwasyon, wala ini nagpadaug kag nagtinguha gid nga magpadulong sa venue sang Dugong Bombo agud magdonar sang dugo.. Ginakilala sini ang importansya sang dugo suno kay Saluba gani tinguhaan gid sini nga mangin regular na nga donor sang dugo sa Dugong Bombo sang Bombo Radyo Philippines.. ...

The first appearance of sirenians in the fossil record was during the early Eocene, and by the late Eocene, sirenians had significantly diversified. Inhabitants of rivers, estuaries, and nearshore marine waters, they were able to spread rapidly. The most primitive sirenian known to date, Prorastomus, was found in Jamaica, not the Old World; however more recently the contemporary Sobrarbesiren has been recovered from Spain.[2] The first known quadrupedal sirenian was Pezosiren from the early Eocene.[3] The earliest known sea cows, of the families Prorastomidae and Protosirenidae, are both confined to the Eocene, and were about the size of a pig, four-legged amphibious creatures. By the time the Eocene drew to a close, came the appearance of the Dugongidae; sirenians had acquired their familiar fully aquatic streamlined body with flipper-like front legs with no hind limbs, powerful tail with horizontal caudal fin, with up and down movements which move them through the water, like cetaceans. The ...

2016. Signore, A.V., J.L.A. Paijmans, M. Hofreiter, M.S. Springer, and K.L. Campbell. 2016. Emergence of a chimeric pseudogene altered hemoglobin evolution during the aquatic transition of Sirenia. [in review]. Signore, A.V., A. Fago, R.E. Weber, and K.L. Campbell. 2016. Evolved changes in hemoglobin of the extinct Stellers sea cow (Hydrodamalis gigas) reveal unexpected mechanisms of thermal adaptation. [in review]. 2015. Springer, M.S., A.V. Signore, J.L.A. Paijmans, D.P. Domning, J. Velez-Juarbe, C. Bauer, K. He, L. Crerar, P.F. Campos, W.J. Murphy, R.M. Meredith, J. Gatesy, E. Willerslev, R.D.E. MacPhee, M. Hofreiter and K.L. Campbell. 2015. Interordinal gene capture, the phylogenetic position of Stellers sea cow based on molecular and morphological data, and the macroevolutionary history of Sirenia. Molecular Phylogenetics and Evolution, 91(10):178-193 ...

The Carcharodon megalodon (extinct giant white shark) grew to 50 feet in length or more. It lived during the Miocene and was the ancestor of the modern great white shark. Hemipristis is a genus of shark also called snaggletooth and known for its extremely serrated teeth. Dugongs disappeared from Florida at the end of the Miocene and are represented today by the manatee. However, dugongs are not extinct. Today, most of the world s population of dugongs is now found in northern Australian waters. ...

Bourjea, J, Lapegue, S, Gagnevin, L, Broderick, D, Mortimer, JA, Ciccione, S, Roos, D, Taquet, C and Grizel, H 2007, Phylogeography of the green turtle, Chelonia mydas, in the Southwest Indian Ocean, Molecular Ecology, vol. 16, pp. 175-86.. Broderick, D, Ovenden, JR, Lanyon, J and Slade, R 2007, Characterisation of 26 new microsatellite loci in the dugong (Dugong dugon), Molecular Ecology Notes, vol. 7, pp. 1275-7.. Buckworth, R, Ovenden, JR, Broderick, D, McPherson, GR, Street, R and McHale, M 2007, Genetag: Monitoring fishing mortality rates and catchability using remote biopsy and genetic mark-recapture, in: Lyle, JM, Furlani, DM and Buxton CD (eds), Cutting edge technologies in fish and fisheries science, Australian Society for Fish Biology, Workshop Proceedings, Hobart, Tasmania, August 2006, Australian Society for Fish Biology, pp. 44-9.. Heath, DD, Dong, L, Ovenden, JR, Begg, G 2007, Effect of DNA extraction on ageing success in coral trout (Plectropomus leopardus) otoliths, ...

Other examples of sirenian multispecies communities are found in the Early Oligocene of Puerto Rico and the Early Miocene of India, among others (more on this sometime in the future). In addition, in the Pacific, sirenians were not the only herbivorous marine mammals. In the northern Pacific region, sirenians seem to have shared their resources with the desmostylians (see picture below), an interesting (and bizarre) group of mammals that lived from the Oligocene to the Miocene and were presumably feeding and spending time in the marine realm (Domning et al., 1986; Inuzuka et al., 1994). Whereas, in the southeastern Pacific, fossils of aquatic sloths (Thalassocnus spp.) have been found in the same formations as sirenians (Muizon & McDonald, 1995; Canto et al., 2008; Muizon & Domning, 1985; Bianucci et al., 2006; Domning & Aguilera, 2008 ...

Looking for Hydromalis? Find out information about Hydromalis. see sirenian sirenian or sea cow, name for a large aquatic mammal of the order Sirenia. Living sirenians are the dugong and the manatee, both found in warm,... Explanation of Hydromalis

The dugong is the congener of the manatee in the Indian Ocean and the Australasian waters. It is as large as the manatee, and visibly different. Its head is small in proportion to the body, and is separated from it by a slight but distinct cervical depression; its skull is short, and its snout terminates abruptly in a large, thick upper lip, looking something like the trunk of the elephant cut short across; its tail, horizontally flattened, like that of the manatee, is forked or crescent-shaped, instead of being entire, as with its congener; and its flippers are destitute of any traces of nails. The eyes are small, and are furnished with a third eyelid or nictitating membrane. For the rest, we let an English writer, who examined one of the animals at the hunting-grounds in Moreton Bay, Australia, describe him: Now I could understand, he says, why one person had told me the dugong was like a whale; another, that it resembled a seal; a third, that it was not unlike a porpoise. The animal was ...

The Stellers jay occurs in most of the forested areas of western North America as far east as the eastern foothills of the Rocky Mountains from southern Alaska in the north to northern Nicaragua[5] completely replacing the blue jay prevalent on the rest of the continent in those areas. Its density is lower in the central Rocky Mountain region (Montana, Idaho, Wyoming and eastern Utah) plus the desert or scrubland areas of the Great Basin (e.g. Nevada, western Utah, southern Arizona and parts of California). Some hybridization with the blue jay in eastern foothills of the Rocky Mountains, especially Colorado, has been reported. Although the Stellers jay primarily lives in coniferous forests it can be found in other types of forests as well. They can be found from low to moderate elevations, and on rare occasions to as high as the tree line. Stellers jays are common in residential and agricultural areas with nearby forests.[6] ...

Discover specific reservations, together with those made by phone or when not signed in. The campgrounds in Florida that offer month-to-month low cost rates are

Virtues in General : King Fire Dragon Ball Pearl As Symbolized of Great Empowerment & The Appeal of Charm, Prosperity, Improves Business, Power of Healing, Self Confidence, Living in Harmony, Attracts Luck, Charismatic, Spiritual Development, Wards off Negative Energies, Protection & Alignment. The description of item as below : * It comes with unique […]. ...

Hari ini, mulut aku yang penuh dengan peralatan ortodontik ni, akan dapat sparepart baru. Ada tukar getah, ada tukar donat, ada tambah dawai, alahai... Lepas tu dua batang gigi kena trim dengan gerudi, perghh... Diperkukuhkan lagi dengan power chain, serta-merta gigi, gusi dan mulut terasa tegang semacam, nak makan pun sakit ni nanti ...

Terkini. Aku kemas bilik kerja aku. Aku pindahkan komputer dan alatan-alatan ke suatu sudut di dalam master bedroom. Bilik kerja sedia ada aku nak hand-over kepada anak aku. Anak-anak dah mula besar, nak latih dorang tidur asing-asing lelaki perempuan ...

lepas habes bola , kami pun g la jejalan sekitar cerating plak.. duk meronda and duk kenang2 tyme buat family day kat sini dulu ...

Walters, C., J. Korman, L. E. Stevens, and B. Gold. 2000. Ecosystem modeling for evaluation of adaptive management policies in the Grand Canyon. Conservation Ecology 4(2): 1.

In this position, you will use your excellent inter-personal and communication skills to regularly interact with FPB members and chairs of associated standing committees; with DNR staff and executive management; tribal representatives and members; other local, state and federal agents; stakeholders such as those from the environmental community and forest landowner community; researchers; contractors and others. Bring your can-do attitude and problem-solving abilities, along with your scientific training, natural resources knowledge and business management skills, to further the success of the forest practices adaptive management program by adding to our knowledgeable, efficient and entertaining team.. How to Apply: ...

Looking for online definition of sea cow in the Medical Dictionary? sea cow explanation free. What is sea cow? Meaning of sea cow medical term. What does sea cow mean?

Unmanned Aerial Vehicle (UAV) Payloads & Subsystems Market Report 2016-2026: Leading Companies Revolutionising Electro-Optic Infrared (EO/IR), Surveillance, Radar, Communications & Navigation Capabilities for Governmental & Military Drones - The global surge in unmanned aerial vehicle (UAV) use in recent years has led to leaps in development and spending on sensors, radars, cameras, signals intelligence (SIGINT).

Technology has reached a point where it has become feasible to develop unmanned aerial vehicles (UAVs), that is aircraft without a human pilot on board. Given that future UAVs can be autonomous and cheap, applications of swarming UAVs are possible. In this thesis we have studied a reconnaissance application using swarming UAVs and how these UAVs can communicate the reconnaissance data. To guide the UAVs in their reconnaissance mission we have proposed a pheromone based mobility model that in a distributed manner guides the UAVs to areas not recently visited. Each UAV has a local pheromone map that it updates based on its reconnaissance scans. The information in the local map is regularly shared with a UAVs neighbors. Evaluations have shown that the pheromone logic is very good at guiding the UAVs in their cooperative reconnaissance mission in a distributed manner.. Analyzing the connectivity of the UAVs we found that they were heavily partitioned which meant that contemporaneous communication ...

As unmanned aerial vehicles (UAVs) prevail in commercial and first responder applications, the need for safer and more consistent recovery methods is growing. Standard aircraft landing manoeuvres are only possible with a suitable runway which is often unavailable outside of military applications. Alternative recovery approaches can be either contained within the aircraft, ie. parachute or be setup on the ground ie. net landing. By integrating the recovery system into the vehicle, the flight preparation can be streamlined due to the fact that setting up recovering devices is no longer required. The goal of this thesis is to investigate the application of an autonomous vertical landing capability for fixed wing UAVs using articulated motors to enter vertical flight. Using an experimental UAV design, the dynamics of the problem were investigated using recorded flight data. Implementing a decoupled control approach, the aircraft was stabilized to maintain a horizontal hover. Through the ...

Flying robots have gained great interest because of their numerous applications. For this reason, the control of Unmanned Aerial Vehicles (UAVs) is one of the most important challenges in mobile robotics. These kinds of robots are commonly controlled with Proportional-Integral-Derivative (PID) controllers; however, traditional linear controllers have limitations when controlling highly nonlinear and uncertain systems such as UAVs. In this paper, a control scheme for the pose of a quadrotor is presented. The scheme presented has the behavior of a PD controller and it is based on a Multilayer Perceptron trained with an Extended Kalman Filter. The Neural Network is trained online in order to ensure adaptation to changes in the presence of dynamics and uncertainties. The control scheme is tested in real time experiments in order to show its effectiveness.

Ashley Dumaine, an honors student studying Computer Science & Engineering (CSE), is making herself known in the world of technology. She demonstrated her independent study project titled Mind-Controlled Unmanned Aerial Vehicle (UAV) at Connecticuts Invention Convention, and caught the eye of writer Erick Royer of MultiRotor Pilot Magazine.. In the article on page 26 and 27, Erick explains, I noticed a Parrot Augmented Reality (AR) Drone quad-copter sitting on the floor and a female student with a very sci-fi-looking gadget attached to her head. The first thing I thought of was, Could she be flying this with her mind? Soon the area was cleared and without the aid of any controller in her hands, she began to fly the AR quad-copter. After he was mystified by the demonstration, he found out that she was, in fact, controlling the quad-copter with the device on her head. The device she used to achieve this feat was an electroencephalogram (EEG) sensor. Ashley wrote a program that receives ...

We are working to develop, test and demonstrate the latest thermal remote sensing technology on an Unmanned Aerial Vehicle (UAV) to identify the location of livestock in extensive rangelands. By using a UAV platform, cattle can be located across very broad areas to assist producers in improving the efficiency, and reducing the cost, of mustering often done by helicopter at great expense.

Genetic Algorithm Based Decentralized Task Assignment for Multiple Unmanned Aerial Vehicles in Dynamic Environments;kpubs;kpubs.org

Global Fixed Wing Unmanned Aerial Vehicles Market 2019 Growth Analysis, Share, Demand by Regions, Types, and Analysis of Key Players Research Forecasts to 2024

p,Congratulations to HST MEMP students Justin Lee, Adam Pan, Vyas Ramanan, Nikhil Vadhavkar, and Andrew Warren, working under Prof. George Barbastathis, have received a Round 8 Global Challenges Exploration Grant from the Bill & Melinda Gates Foundation. The team will be using this $100,000 grant to develop unmanned aerial vehicles for developing world countries that can be deployed by health care workers via cell phones to swiftly deliver vaccines to hard-to-reach locations.",br /,.  ,/p,. ...

When you think of unmanned aerial vehicles (UAV) or drones, your first thought is probably of the military but drones have some great uses on the civilian side - now and into the next century. Here are a few uses of drones in the civilian world.

References:. Darling, Kathy. Manatee on Location. Lothrop, Lee and Shepard Books. 1991. Dietz, Tim. The Call of the Siren. Fulcrum Publishing. 1992.. Hartman, Daniel. Ecology and Behavior of the Manatee (Tricheschus manatus) in Florida. Special publication #5 The American Soceity of the Mammologists. 1979.. OKeefe, Timothy M. Manatees Our Vanishing Mermaids. Larsens outdoor publishing. 1993.. OShea, Thomas; Ackerman, Bruce; & Percival, Franklin H. Population Biology of the Florida Manatee. U. S. Department of the Interior: National Biological Service. August 1995.. Reynolds, John E. and Daniel Odell. Manatees and Dugongs. Facts on File. 1991.. Silverstein, Robert, Virginia, & Alvin; Nunn, Laura Silverstein. The Manatee. The Millbrook Press. 1995.. Zeiller, Warren. Introducing the Manatee University Press of Florida. 1992. ...

We arrived at about 8pm at Marina South and the tide was rising. The dolphin was fast being covered by the incoming tide. Dr Chua, Ashley and Jani took photographs. The beak of the carcass caused it to be lodged amongst the rocks at the breakwater. It looked like a female carcass (1.8m from beak to tail) of the Indo Pacific Humpback Dolphin with a long longitudinal (down from forelimb to tail) laceration on its ventral (front) side. It was most likely hit by a boat propeller. It was also very decomposed, hardly any blubber or tissue left but not very smelly. We dislodged the beak and took more photos. The lower jaw was broken and all meat/tissue was already gone from the beak. Some ribs were jutting out of the frame and many superficial lacerations all over the body especially on the head (as pointed out by May Li) but these could be due to the carcass being tossed about by the waves. The initial plan was to salvage whatever we could especially tissue sample but the carcass was badly decomposed, ...

Drones and Small Unmanned Aerial Systems Special Series profiles interesting information, thoughts and research into using drones, UAVs or remotely piloted vehicles for photography, journalism and conservation, that I learn about during my travels. getting started Best 10 Drones 2017: The Beginners List So You Want to Create Maps Using Drones? So You Want to Fly Drones? So You…

The Stellers jay is one of the more common birds Yosemite visitors see. It has beautiful blue feathers that arent blue at all--that is, they have no blue pigment in them. This is also the case with Yosemites mountain bluebirds. Birds with yellow or red feathers usually get their color from pigments in the foods they eat, but the digestive process destroys blue pigments. So how do feathers on mountain bluebirds or Stellers jays get their blue color?. Feathers are made of keratin, the same stuff your fingernails are made of. As a feather that will become blue grows, keratin molecules grow inside each cell, creating a pattern. When the cell dies, a structure of keratin interspersed with air pockets remains. As sunlight strikes one of these feathers, the keratin pattern causes red and yellow wavelengths to cancel each other out. The blue wavelengths reflect back, giving the feather its color. Different shapes and sizes of air pockets and keratin make different shades of blue. This is what ...

TY - BOOK. T1 - Fish stock assessment under data limitations developing a new method based on a size-structured theoretical ecology framework. AU - Kokkalis, Alexandros. PY - 2016. Y1 - 2016. N2 - Fish stock assessment is an integral part of every fisheries management system. Modern assessment methods require data about the fishery and the stock, such as catches, survey estimates, aging information and life history parameters, all of which is difficult and expensive to gather. However, the majority of global fish catches comes from species that lack an official assessment due to lack of data. That is true especially for small scale fisheriesand fisheries in developing countries. New methods are in need that require little amount of easily attainable data and provide scientific advice for fish stocks that are not assessed. The goal of the thesis is to develop a new data-limited stock assessment method that is: rooted in theoretical ecology, requires only information about the size composition of ...

Decision-making is a crucial cognitive function for various animal species surviving in nature, and it is also a fundamental ability for intelligent agents. To make a step forward in the understanding of the computational mechanism of human-like decision-making, this paper proposes a brain-inspired decision-making spiking neural network (BDM-SNN) and applies it to decision-making tasks on intelligent agents. This paper makes the following contributions: (1) A spiking neural network (SNN) is used to model human decision-making neural circuit from both connectome and functional perspectives. (2) The proposed model combines dopamine and spike-timing-dependent plasticity (STDP) mechanisms to modulate the network learning process, which indicates more biological inspiration. (3) The model considers the effects of interactions among sub-areas in PFC on accelerating the learning process. (4) The proposed model can be easily applied to decision-making tasks in intelligent agents, such as an unmanned aerial

Fishery managers require stock assessment tools to guide responsible management decisions and to ensure that they achieve sustainable goals and objectives for their fishery. Many managers, however, are constrained in adopting good management practices and in choosing the best tools by their limited understanding of the benefits and needs of the many alternative options. This project was designed to assist the uptake of those stock assessment tools and guidelines developed by over 20 previous FMSP projects. It has developed and tested a concise Managers Guide, showing step by step how to write a fishery management plan. Examples are given of different plans designed to deliver alternative biological, ecological, social and economic goals for a fishery. A complementary Stock Assessment Guide has also been developed showing how the different stock assessment tools produced by the FMSP can be used to provide the scientific information needed to ensure biological sustainability of the fishery. ...

Scientists say theyve unearthed fossil remains of a sea cow that lived in the shallow waters off Southern Californias Channel Islands some 25 million years ago.

de Jong, W.W., Zweers, A. and Goodman, M. (1981) Relationship of Aardvark to Elephants, Hyraxes and Sea Cows from α-Crystallin Sequences. Nature, 292, 538-540.

Abstract: Unmanned aerial vehicle (UAV) is an effective tool and an appreciate alternative mean to supply,even partially replace the traditional ground investigation,especially at large scale investigation,due to its greater availability and flexibility.However,there is little study on area estimation using UAV in domestic,and this investigation approach is not yet adopted operationally.Therefore,it is necessary to explore the applicability and flexibility,and point out the issues that should be noted at the area estimation processes with UAVs in practical cases.In this study,the area estimation of rice,main crop in south China was implemented in Yangchun,Guangdong Province.Satellite imageries were acquired at key growth period of late rice.Support Vector Machine (SVM) was used to generate the classification of arable land.This study constructed 300 m×300 m square grids covering the whole study area.Then,grids that contain the arable land in classification were reserved to form the ...

Westley, F., M. Holmgren, and M. Scheffer. 2010. From scientific speculation to effective adaptive management: a case study of the role of social marketing in promoting novel restoration strategies for degraded dry lands. Ecology and Society 15(3): 6. https://doi.org/10.5751/ES-03168-150306

La recerca del grup Icarus se centra en làmbit dels vehicles aeris no tripulats, també anomenats UAVs (Unmanned Aerial Vehicles). Com el seu nom indica aquests aparells no disposen dun pilot humà a bord. Lobjectiu del grup és investigar tecnologies que permetin desenvolupar UAVs de baix cost amb capacitat per realitzar missions de caràcter civil de forma totalment autònoma per tal que puguin actuar en situacions crítiques, D-cub situations (Dull,Dirty,Dangerous).. Pàgina web del grup de recerca ...

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SRI International (SRI) has recently addressed the requirements of pointing systems for a variety of maneuvering platforms. These platforms include airborne systems (unmanned aerial vehicles, aircraft), land vehicles (tanks, HUMVEES), and marine vessels.. SRI International (SRI) has recently addressed the requirements of pointing systems for a variety of maneuvering platforms. These platforms include airborne systems (unmanned aerial vehicles, aircraft), land vehicles (tanks, HUMVEES), and marine vessels.. Our primary goal was to obtain 0.1-degree pointing accuracy. To achieve this, we considered several design options. A stand-alone navigation grade inertial measurement unit (IMU) seemed too expensive and heavy but has a clear advantage by being more immune to GPS outages. A magnetic compass-based solution appeared too problematic due to calibration and accuracy issues.. After other design trades were reviewed, we limited the path forward to tactical grade IMUs combined with GPS. Several ...

On Thursday, October 10, doors opened at Rockwell Pavilion and the Honors College in the M.D. Anderson Library for the Ninth Annual Undergraduate Research Day. Guests browsed the rooms to watch 130 students display their research. Three student groups from the College of Technology Engineering Technology Department were under the mentorship of Dr. Mequanint Moges. The group projects included Unmanned Aerial Vehicle, AquaSMART: Intelligent Control System, and Electronic Safety and Monitoring System for Handguns. Team HAWK designed an aerial surveying vehicle with the safety of others in mind. Students Adrienne Low, Justin Fong, Alex Rios, Jed Avanzado and Sony Thomas named the project Unmanned Aerial Vehicle (UAV). UAV mitigates the overall damage of surveying equipment and harm to crew members that have become immobilized from their assignment. This device can be beneficial to numerous industries for security and surveillance purposes. The efficient design was engineered with an autopilot and ...

We found that a positive change in dune volume (dune growth) was linearly related to initial dune volume over summer but not over winter. Big dunes accumulated more sand than small dunes due to their larger surface area. Exposed dunes increased more in volume (0.81 % per dune per week) than sheltered dunes (0.2 % per dune per week) over summer, while the opposite occurred over winter. Vegetation characteristics did not significantly affect dune growth in summer, but did significantly affect dune growth in winter. Over winter, dunes dominated by Ammophila arenaria, a grass species with high vegetation density throughout the year, increased more in volume than dunes dominated by Elytrigia juncea, a grass species with lower vegetation density (0.43 vs. 0.42 (m3 m−3) week−1). The effect of species was irrespective of dune size or distance to the sea ...

Members of the Scan Eagle team position the Skyhook arrested recovery system over the flight deck to remove a Scan Eagle unmanned aerial vehicle aboard the amphibious dock landing ship USS Comstock. The Skyhook system allows Scan Eagle to operate from several platforms, including forward fields, mobile vehicles and small ships. Scan Eagle is a runway independent, long-endurance, unmanned aerial vehicle system designed to provide multiple surveillance, reconnaissance data, and battlefield damage assessment missions. Comstock is part of the Boxer Amphibious Ready Group and is underway in the U.S. 7th Fleet area of responsibility. ...

Earth Imaging Journal is a bimonthly magazine covering a range of earth observation and geospatial technologies and applications.

Sorry, but the advert you were looking for has expired. To see more employment opportunities with Cranfield University, please click here. Perhaps you were looking for something totally different? In that case, it might be best start a new job search from our Home Page. You might also find our Site Map useful too. ...

A key aspect to controlling and reducing the effects invasive insect species have on agriculture is to obtain knowledge about the migration patterns of the

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To sum it up: quadrocopters trade safety and economy of operation for economy of manufacture.. Now, what qualities are important for commercially operated craft, especially ones that carry passengers? First is safety. Then economy of operation. Price of the craft is not very relevant - if it can be operated cheaply enough, the initial investment will pay off sooner or later.. Conclusion: quadrocopters are the worst possible solution for commercial operation, particularly ill-suited to carrying people. The only imaginable commercial scenario is when the operation involves very high risk to the craft. Real life validates this claim: so far the only successful applications of quadrocopters are high-risk drug delivery, drone racing and toys - in all those, cost of acquiring the aircraft dominates.. BTW, your project is not a pure quadrocopter in the common understanding of the term. The thrust vectoring adds complication. You have already traded some cost of manufacture to get better operating ...

A creature known as the scavenger of the deep has surprised its keepers at an aquarium by fasting for more than four years. The giant male isopod, called No. 1 to distinguish it from the two other giant isopods kept at Toba Aquarium in Mie ... ...

THE CMS Secretariat acts as the Conventions coordinating body. The CMS Secretariat is provided and administered by the United Nations Environment Programme.[15]. The functions of the Secretariat are laid out in Article IX of the Convention. They include: arranging for and servicing meetings of the COP, Scientific Council and Standing Committee, maintaining liaison between the States Parties, disseminating information that furthers the objectives and implementation CMS, preparing COP reports, promote the conclusion of CMS Agreements, among other functions. [5][15]. The Secretariat has based in Bonn, Germany since its creation, but was relocated to the United Nations Campus in Bonn in 1998. Additionally, since 2009, the Secretariat also maintains an out-post office in Abu Dhabi, United Arab Emirates. The Abu Dhabi office oversees implementation of the MOU on the Conservation of Migratory Birds of Prey in Africa and Eurasia, and the MOU on the Conservation and Management of Dugongs and their ...

March 13, 2008 Photo of the day of National Geographic was taken by Mr. Tim Laman on assignment for NG last 2002. The photo of the tiny orange crab on a leaf was taken in Panay Island, Philippines.. Panay Island is located in the Visayas region. Panay comprises of 4 provinces: Aklan, Antique, Capiz and Iloilo (including neighboring Guimaras). The area is quite popular for tourists and adventurers because of its natural beauty inland. The island in itself is also surrounded by the different seas on all sides. Sadly, there was an oil spill from an oil tanker last of October of 2006 which polluted the Guimaras area, affecting the wildlife there severely.. In August 2006, M/V Solar 1, an oil tanker chartered by Petron, sank off Guimaras shores, spilling 2.4 million liters of oil and contaminating 1,000 hectares of mangrove areas. The massive oil spill threatened species such as dugong and rare sea turtles. At that time, environmentalists called the accident the worst oil spill in the countrys ...

One can only conclude that Sterling possesses a highly developed sense of irony. Despite what he says to the contrary, The Mysterious Island enters the country of pure fantasy only during its occasional descents into the utterly preposterous, as when Cyrus Harding, the chief of Verne s five Robinson Crusoids, astoundingly succeeds in producing some six liters of nitroglycerine from the body fat of a slain dugong. (It might also qualify as an indulgence in pure fantasy to maroon a young boy in the middle of the South Pacific with four older men, and yet not have his pubescent ass immediately become the most sought-after commodity on the island once the necessities of life were fully seen to, but polite authors didn t write about that sort of thing in 1874.) Otherwise, The Mysterious Island is as stultifyingly schoolmarmish as any work of fiction ever composed, and by the time it finally gets around to revealing itself as a sequel to the only slightly less tedious 20,000 Leagues Under the Sea, the ...

Ang pag-iwas ay karaniwang may kinalaman sa pagpuksa ng mga kissing bug at pag-iwas ng pagkagat ng mga ito.[1] Ang ibang pang-iwas na pagsisikap ay kinabibilangan ng pag-screen ng dugong isasalin.[1] Wala pang nagagawang bakuna hanggang noong 2013.[1] Ang mga maaagang impeksiyon ay nagagamot pa sa pamamagitan ng benznidazoleonifurtimox.[1] Ang mga ito ay halos palaging nagagamot kung maaga itong maibigay, gayun pa man, ito ay hindi na gaanong mabisa habang tumatagal ang taong nagkakasakit ng Chagas.[1] Kapag ginagamit sa mga matagal nang sakit, maaaring maantala o maiwasan ang pagkakaroon ng mga malalalang sintomas.[1] Ang benznidazole at nifurtimox ay nagdudulot ng pansamantalang di kanais-nais na di inaasahang epekto ng gamot ng hanggang 40% ng mga tao[1] kasama na dito ang mga sakit sa balat, pagkakaroon ng toxin sa utak, irritasyon ng digestive system o sistema ng pagtunaw ng pagkain.[2][5][6] ...

From Dugong to Dwarf Antelope, this is the ultimate list of animals that start with the letter D. Together we make up The Big Zoo.

High-resolution characterizations and predictions are a grand challenge for ecohydrology. Recent advances in flight control, robotics and miniaturized sensors using unmanned aerial vehicles (UAVs) provide an unprecedented opportunity for characterizing, monitoring and modeling ecohydrologic systems at high-resolution (,1 m) over a range of scales. How can the ecologic and hydrologic communities most effectively use UAVs for advancing the state of the art? This Innovative Viewpoints paper introduces the utility of two classes of UAVs for ecohydrologic investigations in two semiarid rangelands of the southwestern U.S. through two useful examples. We discuss the UAV deployments, the derived image, terrain and vegetation .... ...