Greenberg L.; Fletcher D.J.C.; Vinson S.B., 1985: Differences in worker size and mound distribution in monogynous and polygynous colonies of the fire ant solenopsis invicta
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Leafcutter ants are different than most other ants when it comes to their source of food. Most ants feed on sugary substances to obtain carbohydrates, and greasy substances or meats to obtain protein. Not so with the leafcutter ants. Leafcutters primary source of food is fungus. This process begins with leafcutter ant workers bringing pieces of leaves and other plant materials back to their nest. The collector ants do not eat this plant material since they are not able to digest all of the nutritional compounds in the plants they gather. However, these workers do get some nutrients from the juices in the plants they harvest. Other workers meet the collectors at the nest entrance and accept the harvested plant materials. The workers chew the larger pieces into smaller pieces. The small pieces mix with the ants saliva to produce a moist substance that is deposited into special parts of the nest called fungus chambers. As the fungi in the fungal chambers grow and reproduce, enzymes are secreted ...
Formica polyctena (es); Kis erdeivöröshangya (hu); Formica polyctena (ast); Formica polyctena (ca); Kahlrückige Waldameise (de); Formica polyctena (ga); Formica polyctena (bg); Formica polyctena (ro); Kal skogsmyra (sv); Formica polyctena (uk); Formica polyctena (la); Formica polyctena (io); Kaljukekomuurahainen (fi); mravenec lesní menší (cs); Formica polyctena (an); Formica polyctena (fr); palukuklane (et); Formica polyctena (vi); Formica polyctena (sr); Formica polyctena (pt-br); Formica polyctena (gl); Formica polyctena (ceb); Mrówka ćmawa (pl); Formica polyctena (nb); kale rode bosmier (nl); Formica polyctena (it); Formica polyctena (pt); Formica polyctena (id); Formica polyctena (sq); Formica polyctena (en); Малый лесной муравей (ru); Formica polyctena (war); Formica polyctena (nn) specie di formica (it); কীটপতঙ্গের প্রজাতি (bn); espèce dinsectes (fr); מין של חרק (he); art av insekt (sv); вид насекомых (ru); ...
Leafcutter ants, signature denizens of New World tropical forests, are unique in their ability to harvest fresh leaves to cultivate a nutrient-rich fungus as food.. Now, this mutualism -- a complicated interplay of ants, fungi and a suite of bacteria -- is coming into sharper focus as a team of University of Wisconsin-Madison researchers has published the complete genome of the leafcutter ant, Atta cephalotes.. The study, published today (Feb. 10, 2011) in the journal Public Library of Science (PLoS) Genetics, by an international team led by UW-Madison bacteriology professors Cameron Currie and Garret Suen, illustrates how lifestyle can remake an animals genetic blueprint over the course of evolutionary history.. The genome, the first for a leafcutter ant, reveals that the insect has shed genes that other ant species use to help acquire nutrients. The leafcutter, which cannot survive without its fungus food, has apparently slimmed its genome to get rid of genes it no longer needs due to its ...
Chemical analyses by GC-MS of the metapleural glands (MG) from workers of Solenopsis invicta and S. geminata revealed for the first time the chemical composition of these glands and showed small differences between the two species. The MG of both spe
The social Hymenoptera have distinct larval and adult stages separated by metamorphosis, which implies striking remodeling of external and internal body structures during the pupal stage. This imposes challenges to gut symbionts as existing cultures are lost and may or may not need to be replaced. To elucidate the extent to which metamorphosis interrupts associations between bacteria and hosts, we analysed changes in gut microbiota during development and traced the transmission routes of dominant symbionts from the egg to adult stage in the leaf-cutting ants Acromyrmex echinatior and Atta cephalotes, which are both important functional herbivores in the New World tropics. Bacterial density remained similar across the developmental stages of Acromyrmex, but Atta brood had very low bacterial prevalences suggesting that bacterial gut symbionts are not actively maintained. We found that Wolbachia was the absolute dominant bacterial species across developmental stages in Acromyrmex and we confirmed that Atta
Studies in almonds and citrus demonstrate Altrevin fire ant bait can kill 90 percent of a fire ant population in just seven days while providing up to eight weeks of control after application.1. Altrevin fire ant bait is an excellent new tool for almond and citrus growers fighting the many problems fire ants cause, said Steven Broscious, Technical Market Manager, BASF. The insecticide has demonstrated the ability to eliminate fire ant activity in as few as seven days, compared to the current market leader, which can take two months to impact the colony. Altrevin fire ant bait represents the continuous focus from BASF to bring targeted new tools to the specialty market. Fire ants cause a number of issues for growers, such as reducing yields. According to the University of California, even a mild fire ant infestation can cost an almond grower $102.30 per acre in just 14 days.2 Fire ants also pose a risk to workers; their bite is strong, painful, and, in rare cases, has the power to kill those ...
The first thing you notice is a crumb from your midnight cherry pie raid has sprouted legs and is moving across the kitchen counter. What was last nights cast off is now a feast for a family of ants. Ants can be common pests in homes. Damage from ants varies. Most ants are primarily a nuisance and cause little damage. Carpenter ants can weaken wood in structures. However unlike termites ants nest in wood but do not eat wood. Generally there are no disease problems associated with ants. Ants have a wide range of nesting habits and food preferences. Proper identification is important in determining control measures. Some ants build nests in soil producing characteristic mounds while others nest in homes behind moldings, baseboards, countertops and similar places. Still others like carpenter ants nest in decaying or moisture damaged wood. Ants feed on a variety of foods including starches, meats, fats and sweets. Thats why they hang out in the kitchen with us. Not all ants found outdoors become ...
Some species of ants possess an unusual form of social organization in which aggression among nests is absent. This type of social organization, called unicoloniality, has been studied in only a handful of species and its evolutionary origins remain unclear. To date, no study has examined behavioural and genetic patterns at points of contact between the massive supercolonies that characterize unicoloniality. Since interactions at territory boundaries influence the costs of aggression and the likelihood of gene flow, such data may illuminate how supercolonies are formed and maintained. Here we provide field data on intraspecific territoriality for a widespread and invasive unicolonial social insect, the Argentine ant (Linepithema humile). We observed abrupt and well-defined behavioural boundaries at 16 contact zones between three different pairs of supercolonies. We visited nine of these zones weekly during a six-month period and observed consistent and intense intercolony aggression that ...
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A new incursion of fire ants has been detected near the Brisbane airport. This is a new arrival of fire ants to Australia and genetic testing indicates that the ants originated from the Southern United States and are not related to current or previous fire ants populations in Queensland.. Its likely the new fire ants arrived in freight sometime in the last two years, and thanks to a vigilant person who reported them to Biosecurity Queensland in September last year, it is believed theyve not had time to spread far. The success of the Fire Ant Program in Gladstone and the Port of Brisbane has shown that this terrible invasive pest can be eradicated, and the key is to act quickly.. According to Biosecurity Queensland, the National Red Imported Fire Ant Eradication Program could not have achieved its success to date without the ongoing awareness and vigilance from local communities. Seventy per cent of fire ant sightings in south-east Queensland are reported by the general public. We urge you to ...
Hipp, Andrew. Gardening Ants. New York: Rosen Publishing, 2003. A close look at the amazing leafcutter ants that grow fungus gardens in their enormous underground nests. Markle, Sandra. Army ants. Minneapolis: Lerner Publications, 2005. Find out about these tropical ants that are part of natures clean-up crew. Prischmann, Deirdre. Ants. Mankato: Capstone Publishers, 2005. Find out all about ants, including where they come from, what they eat, and how strong they are. Twist, Clint. Army Ants. New York: Gareth Stevens Publishing, 2006. Com/ants This Web site contains lots of close-up pictures of the ants that live in the Southwest. org/ This Web site features a slide show with close-up images of different ants from around the world. A. com/leafcutters/ An excellent site devoted to the leafcutter ants that have solved the problem of feeding their huge colonies by creating their own fungus gardens. com/Stories/AnimalsNative/Trapjawants Learn about the Trap-jaw ant-the animal with the fastest ...
The foraging activity of the leaf-cutting ants Atta sexdens and A. cephaloteswas studied observing two colonies of each species in a primary forest of the Central Amazon. These two ant species...
From the modern revision of the genus by Alex Wild (2007): In subtropical South America, Linepithema ants are found near sea level in rainforests, scrub forests, and floodplains. In the Central Andes they ascend to 4,000 meters elevation. In northern South America, Central America, and the Caribbean Linepithema species are more typically montane, sometimes occurring locally at high densities to the apparent exclusion of other ant species. Two species, Linepithema humile and the Argentine ant Linepithema iniquum, have been carried around the world with human commerce, although L. iniquum seems to establish only in greenhouses (Wheeler 1929, Creighton 1950). Although Linepithema ants are often observed in undisturbed primary habitat, most species may also readily be found in pastures, lawns, roadsides and other disturbed habitats, suggesting that populations weather deforestation and habitat modification reasonably well. Some species, including the notorious Argentine ant, likely thrive with ...
Fire ants are no fun! They are bothersome to your family and pets and can sting when their mounds are imposed upon. Usually fire ant stings will cause only a raised welt, but the stings can be more serious to a small percentage of people.. Fire ants are small, yellowish-red to black in color, aggressive, vicious and known for their painful burning sting. They prefer to live outdoors and are often found around sidewalks, next to homes and under trees and shrubs. Disturb a fire ant mound and they will swarm out by the hundreds to sting any person or animal perceived as a threat.. Fire ants are social creatures with defined responsibilities in their colonies. It is best to prevent your yard from becoming home to fire ants or to get rid of them once they become apparent. Call the number at the top of the page to contact a branch office near you.. Contact the branch office nearest you to find out how you can help control fire ants in your yard. ...
The name army ant (or legionary ant or marabunta) is applied to over 200 ant species, in different lineages, due to their aggressive predatory foraging groups, known as "raids", in which huge numbers of ants forage simultaneously over a certain area. Another shared feature is that, unlike most ant species, army ants do not construct permanent nests: an army ant colony moves almost incessantly over the time it exists. All species are members of the true ant family, Formicidae, but several groups have independently evolved the same basic behavioral and ecological syndrome. This syndrome is often referred to as "legionary behavior", and may be an example of convergent evolution. Most New World army ants belong to the subfamily Ecitoninae, which contains two tribes: Cheliomyrmecini and Ecitonini. The former contains only the genus Cheliomyrmex, whereas the latter contains four genera: Neivamyrmex, Nomamyrmex, Labidus, and Eciton. The largest genus is Neivamyrmex, which contains more than 120 ...
If there are ants living in your house, it might be a good idea to call Orange pest control to try to control the infestation and get rid of them.. Usually, people see ants as an annoyance only, but the truth is ants are more than an annoyance. In fact, if there are ants at your place, you find that these ants can greatly affect your home and life.. Ants may not be as dirty as rats or cockroaches but the fact that they can contaminate your food and spread germs remains. Ants live to forage and when there are ants in your house; they would get to your food one way or another. If you can prevent this, then you should. If ants get to your food, they may end up leaving their droppings or contaminate it. Sometimes, this contamination would affect the quality of your food or ingredient. In the worst case scenario, you might end up suffering from diarrhea because of the contaminants ants may leave behind.. Some particular type of ants brings potential danger to your homes. These types of ants are ...
I had to remove some insulation along the foundation wall in the basement to allow the exterminator to spray for carpenter ants (an annual event), now I need to replace it. I was considering using foam/spray insulation but I dont know if this will give those nasty buggers a nicer home. We had found that carpenter ants set up a nice metropolis inside garage door panels stored in our barn (they dug through the internal styrofoam and set up shop). Does anyone have suggestions that address insect infestation???? Thanks for any advice. I appreciate all your knowledge and humour. Normwantabe
How to Identify Carpenter Ants. Carpenter ants play key ecosystem roles, particularly by aiding in the decomposition of decaying trees. They also can infiltrate homes and other buildings, nesting in moist, rotting wood and causing...
The ant Cataglyphis lives in the Sahara desert and is one of the most thermotolerant land animals known. It forages at body temperatures above 50 degrees C, and the critical thermal maxima are at 53.6 +/- 0.8 degrees C for Cataglyphis bombycina and 55.1 +/- 1.1 degrees C for Cataglyphis bicolor. The synthesis and accumulation of heat shock proteins (HSPs) were analyzed in Cataglyphis and compared to Formica, an ant living in more moderate climates, and to two Drosophila species. In Cataglyphis, protein synthesis continues at temperatures up to 45 degrees C as compared to 39 degrees C for Formica and Drosophila. The two Drosophila species, Drosophila melanogaster and Drosophila ambigua, differ with respect to their maximal induction of HSP synthesis and accumulation by 3-4 degrees C. In contrast, the two ant species accumulate HSPs prior to their exposure to heat, and in Cataglyphis the temperature of maximal HSP induction by de novo protein synthesis is only 2 degrees C higher than in Formica. ...
Probably gyne polymorphism is not rare in Cardiocondyla, but undetected in many species because of the small available sample size. It is expressed by strong variation in mesosoma dimensions and weak differences in postocular distance (a result of larger eye size of the flying macrosomatic gynes), whereas other characters are equal. Thus, gyne polymorphism in Cardiocondyla deviates from gyne polymorphism in Leptothorax, Tetramorium, Messor, or Myrmica in which measurements of all body parts differ between micro- and macrogynes. Hence, the use of the terms macro- and microgynes is problematic in Cardiocondyla; instead the terms macro somatic and microsomatic gynes are used here. Gyne polymorphism was observed in Cardiocondyla ulianini (see also Marikovsky & Yakushkin 1974), Cardiocondyla batesii, Cardiocondyla bicoronata, Cardiocondyla nigra, Cardiocondyla elegans, and Cardiocondyla sahlbergi. All these species are inhabitants of Palaearctic deserts, semi deserts or dry steppes and three of them ...
Ants are social insects, related to wasps and bees. Ants evolved from wasp-like ancestors 110 and 130 million years ago and diversified after the rise of flowering plants. More than 12,500 out of an estimated total of 22,000 species have been classified. They are easily identified by their elbowed antennae and a distinctive node-like structure that forms a slender waist. A few ants classified as pests include the pavement ant, yellow crazy ant, sugar ants, the Pharaoh ant, carpenter ants, Argentine ant, odorous house ants, red imported fire ant and European fire ant.. Ants are some of the strongest creatures comparative to their size. It has been documented that the common American field ant has joints that can withstand 5000 times its own body weight.. Most ants are harmless, although there are a few dangerous varieties. Fire ants are a kind of wingless wasp that has been known to kill humans. Velvet ants, which are also wingless wasps, are said to have one of the most painful stings in all of ...
Growing up in New Mexico, I was always quick to point out a film that was set, but not made, in my adopted state, called "Them!" The basic plot is that the early atomic tests conducted in New Mexico had caused ants to grow monstrously huge, and quite loud and noisy for never-heard ants.. I thought of that film again when Vicki Lawrence sent me an email with pictures of a giant ant. Now in comparison, this ant is nowhere near the mutant giants of "Them!" but compared to our tiny Argentine ants, its pretty darn large, about a half inch.. Vicki wondered if the ant was a local guy or one that had perhaps hitched a ride into the state and somehow ended up in her hallway.. The ant is a carpenter ant, the largest such ant that we have in California. Although its called a carpenter ant, it doesnt eat wood, it just builds its nest in rotting trees, old stumps, firewood and, if youre unlucky, inside any rotted or partially rotted wood in and on your house.. Seeing one in our house isnt reason to ...
Proposal to Create a Ant-Libraries Sub-Project in Apache Ant ============================================================ (0) rationale Ant itself has accumulated lots and lots of tasks over time. So many, that Ant developers have become reluctant to adding new task. Furthermore any new task in Ant would be tied to Ants release schedule which is too slow for a thriving, fresh piece of code. The proposal allows Ant tasks and types to be developed under the Ant umbrella by Ant developers but have much shorter release cycles than Ant itself. In addition it would new committers who would have commit access to a single Ant library instead of the whole of Ant. (1) scope of the subproject The subproject shall create and maintain libraries of Ant tasks and types. Each library will be managed in the same manner as the Ant project itself, the PMC is ultimately responsible for it. Common Java libraries that only happen to provide Ant tasks as well are out of scope of the subproject. Providing the tasks or ...
... - Camponotus castaneus.. Photo taken with the Canon Digital Rebel XT / 350D and a Sigma 70-300mm Lens on July 5, 2008, in Dahinda (Oak Run), Illinois.. ...
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LITERATURE CITED. Wilson, E.O. 1971. The Insect Societies. Belknap/Harvard Univ. Press: Cambridge. 548 pp.. Holldobler, B. and E.O. Wilson. 1990. The Ants. Belknap/Harvard Univ. Press: Cambridge. 732 pp.. BOOKS FOR CHILDREN ON ANTS. Allinson, B. 1991. Effie. Scholastic, New York, NY. 32 pp.. Bartlett, R. 1957. Insect Engineers. The Story of Ants. Morrow, New York, NY. 128 pp.. Batten, M. 1973. The Tropical Forest: Ants, Ants, Animals, and Plants. Crowell, New York, NY. 130 pp.. Brenner B. 1973. If You Were An Ant. Harper and Row, New York, NY. 29 pp.. Bronson, W.S. 1937. The Wonder World of Ants. 1937. Harcourt, Brace, New York, NY. 87 pp.. Chauvin, Remy. 1971. The World of Ants, a Science Fiction Universe. Hill and Wang, New York, NY. 216 pp.. Clay, P. and H. Clay. 1984. Ants. Black, Dobbs Ferry, NY. 25 pp.. Costello, D.F. 1968. The World of the Ant. Lippincott, New York, NY. 160 pp.. Crompton, J. 1988. Ways of the Ant. Lyons and Burford Books, New York, NY. 244 pp.. Dethier, V.G. 1979. The Ant ...
European fire ants are a nuisance pest for people and a potential threat to the environment. They aggressively defend their territory and readily sting humans, pets and livestock that have the misfortune to move slowly or rest within the ants large foraging areas.. The severity of reaction to the European fire ant sting varies from one individual to another, and with the location of the sting. Usually a sting results in an inflamed red area from one to four inches in diameter, sometimes with a raised white area in the center. The sting causes an initial burning sensation and the affected area can remain sore for just a few hours, or a day or more.. Where this insect has established nests, homeowners have reported that they are unable to use their yards and gardens because of repeated stings by the ants.. If European fire ants move into new places, they may threaten native species of ants. In Europe, it is believed that competition with other native ants prevents the European fire ant from ...
Trophallaxis between individual worker ants and the toxicant load in dead and live Argentine ants (Linepithema humile) in colonies exposed to fipronil and hydramethylnon experimental baits were examined using accelerator mass spectrometry (AMS). About 50% of the content of the crop containing trace levels of 14C-sucrose, 14C-hydramethylnon, and 14C-fipronil was shared between single donor and recipient ants. Dead workers and queens contained significantly more hydramethylnon (122.7 and 22.4 amol/μg ant, respectively) than did live workers and queens (96.3 and 10.4 amol/μg ant, respectively). Dead workers had significantly more fipronil (420.3 amol/μg ant) than did live workers (208.5 amol/μg ant), but dead and live queens had equal fipronil levels (59.5 and 54.3 amol/μg ant, respectively). Moreover, the distribution of fipronil differed within the bodies of dead and live queens; the highest amounts of fipronil were recovered in the thorax of dead queens whereas live queens had the highest ...
Apache Ant is a Java library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other. The main known usage of Ant is the build of Java applications. Ant supplies a number of built-in tasks allowing to compile, assemble, test and run Java applications. Ant can also be used effectively to build non Java applications, for instance C or C++ applications. More generally, Ant can be used to pilot any type of process which can be described in terms of targets and tasks. Ant is written in Java. Users of Ant can develop their own "antlibs" containing Ant tasks and types, and are offered a large number of ready-made commercial or open-source "antlibs". Ant is extremely flexible and does not impose coding conventions or directory layouts to the Java projects which adopt it as a build tool. Software development projects looking for a solution combining build tool and dependency management can use Ant in combination with ...
Leafcutter ant. Close-up of an ant (family Formicidae) on a leaf, showing its large mandibles (lower centre) that it uses to cut through leaves. This specimen was found in Ecuador. - Stock Image C018/2418
Author contributions: C.D.S. and N.D.T. designed research; C.D.S., A.Z., C.H., E.A., R.B., E.C., V.C., E.E., C.G.E., M.-J.F., V.F., J.G., J.D.G., D.G., D.E.H., M.H., H.H., A.S.I.V., B.R.J., R.M.J., A.K., J.W.K., J.L., M.C.M.-T., R.N., R.P.O., J.E.P., R.R., J.T.R., H.M.R., C.R.S., A.V.S., S.T., C.W.T., E.v.W., L.V., K.K.O.W., M.Y., and N.D.T. performed research; C.D.S., A.Z., C.H., C.G.E., M.C.M., S.N., H.M.R., M.Y., and N.D.T. contributed new reagents/analytic tools; C.D.S., A.Z., C.H., E.A., R.B., E.C., V.C., C.R.C., E.E., C.G.E., M.-J.F., V.F., J.G., J.D.G., D.G., K.J.G., D.E.H., M.H., J.-A.H., H. H., A.S.I.V., B.R.J., R.M.J., A.K., J.W.K., J.L., K.A.M., J.A.M., M.C.M.-T., R.N., R.P.O., J.E.P., R.R., J.T.R., H.M.R., C.R.S., A.V.S., G.S., E.L.S., S.T., C.W.T., E.v.W., L.V., K.K.O.W., A.L.W., M.Y., J.A.Y., and N.D.T. analyzed data; and C.D.S., A.Z., C.H., E.A., R.B., E.C., V.C., C.R.C., E.E., C.G.E., M.-J.F., V.F., J.G., J.D.G., D.G., D.E.H., M.H., H.H., A.S.I.V., R.M.J., A.K., K.A.M., ...
Entomology 675711 (MCZ:Ent:675711); Lasius niger; North America: United States: New Mexico: Taos; 10 mi NE Taos; Animalia Arthropoda Insecta Hymenoptera Apocrita Vespoidea Formicidae Formicinae Lasiini Lasius niger;
The team used Formica fusca, an ant species that can form thousand-strong colonies. This common black ant eats other insects, and also aphid honeydew. It often nests in tree stumps or under rocks and foraging workers can sometimes be spotted climbing trees.. Some ants were infected with Beauveria bassiana, a fungus. Infected ants chose food laced with toxic hydrogen peroxide, whereas healthy ants avoided it. Hydrogen peroxide reduced infected ant fatalities by 15%, and the ants varied their intake depending upon how high the peroxide concentration was.. In the wild, Formica fusca can encounter similar chemicals in aphids and dead ants. The Independent reported self-medicating ants a first among insects.. Bos obtained his doctorate from the University of Copenhagen. He began postdoctoral research at Helsinki in 2012. He also runs the AntyScience blog. The blog aims to help address "a gap between scientists and the general public." The name is a pun referencing ants, its primary topic, science, ...
While searching for ants in Daley Ranch (November 2015), an inquisitive gentleman asked me "What good are ants?" In their natural habitats, most of the worlds 12,000+ ant species are living in their complex societies without bothering people unless, of course, you happen to disturb their nests or get too close to their migratory or swarming paths. When they get introduced to places where they dont belong, serious ecological problems often arise. Cases in point are the ubiquitous Argentine ants in California, the numerous alien ant species in the Hawaiin Islands, and South American fire ants in the southern U.S. Ants are ecologically diverse and constitute a large portion of the total animal biomass of their natural habitats. In fact, it has been estimated that the weight of all the ants in Africa exceeds the weight of all the elephants! Ants fill various important ecological roles, such as herbivores, predators, seed dispersers, and pollinators. They are also important scavengers & ...
Hello, I have been searching the web for ideas to kill my new fire ant problem and was suprised to see that some people believe there are No Fire Ants in Colorado. Well thats not true and my yard is proof. I moved here from Florida two years ago and know fire ants when I see them and Ive got em in Peyton, Colorado. They started three weeks ago after the rain. Thistle plants just started growing in my yard and I wanted to kill them before they grew to the humungus size they were last summer. Much to my dismay when I stomped on a few of the small plants hundreds of fire ants came running out of them. Within the past two weeks I have huge fire ant mounds around the front of my house and lots of holes in the dirt full of ants. I am concerned because they are dangerously close to six new young trees I just had planted along my dirt road driveway and they are also in the areas where my I take my dog out in the morning. I am going to poison the hell out of the entire area around my house with 7 dust ...
Newly eclosed workers of the frequently enslaved ant species Leptothorax longispinosus were either exposed to conspecific larvae, exposed to larvae of the slave-making parasite Harpagoxenus americanus, or reared in social isolation. In all conditions, the L. longispinosus workers later accepted H. americanus larvae preferentially. This finding indicates that H. americanus larvae are highly attractive to Leptothorax workers and demonstrates that early learning need not to be invoked to account for the acceptance of Harpagoxenus brood by enslaved Leptothorax workers.
New surprises revealing complex bio-engineering keep emerging as evolutionary scientists continue to unwittingly obey the biblical command to observe the ant(Proverbs 6:6; 30:25). The latest bio-engineering discovery is that a key component of ant colony survival is based on sound (acoustic) communication systems.1. One of the long-standing paradigms of animal communication is the use of airborne chemical messages called pheromones. Ants use pheromones to leave chemical trails that can be followed by other members and to also identify which nest an ant is from, along with its social status in the colony. Now, scientists can add yet another layer of complexity and communication in ant colonies based on acoustics.. Scientists have been studying a type of ant commonly found in Europe. This ant has a specialized appendage on its abdomen that it strokes with its hind legs to create sound signals. Other ants can detect and process these signals, resulting in various complex social responses that are ...
Exhibit Essay. The nearly 9 million known species on Earth, in a multitude of forms, color, and size, are a wealth of natural beauty and mystery that attracts both scientists and artists. In the project Ant Farm: At the Nexus of Art and Science, artists depict the lives of one of the most sophisticated social insects, the leafcutter ants. Iconic members of the tropics, leafcutter ants are often visible from trails of moving leaves, each of which is carried by the large mandibles of an ant. Not only are the trails fascinating, but each leaf presents its own unique form marked by distinct mandibular cuts. The underground nest boasts an intricate design with a labyrinth of corridors and rooms, some with fungal gardens where fungi are cultivated by the ants using the leaves. Thus, the leafcutters form symbiotic relationships with fungi.. All of this happens in the backdrop of the rich sounds of the tropics. At 5 in the morning, howler monkeys call loudly and birds start to wake up. From the sound of ...
The big-headed ant (Pheidole megacephala) is considered one of the worlds worst invasive ant species. As the name implies, its colonies include soldier ants with disproportionately large heads. Their giant, muscle-bound noggins power their biting parts, the mandibles, which they use to attack other ants and cut up prey. In a new study, researchers report that big-headed ant colonies produce larger soldiers when they encounter other ants that know how to fight back.
Attine ants live in symbiosis with a basidiomycetous fungus that they rear on a substrate of plant material. This indirect herbivory implies that the symbiosis is likely to be nitrogen deprived, so that specific mechanisms may have evolved to enhance protein availability. We therefore hypothesized that fungal proteinase activity may have been under selection for efficiency and that different classes of proteinases might be involved. We determined proteinase activity profiles across a wide pH range for fungus gardens of 14 Panamanian species of fungus-growing ants, representing eight genera. We mapped these activity profiles on an independently obtained molecular phylogeny of the symbionts and show that total proteinase activity in lower attine symbionts peaks at ca. pH 6. The higher attine symbionts that have no known free-living relatives had much higher proteinase activities than the lower attine symbionts. Their total in vitro proteinase activity peaked at pH values around 5, which is close to the pH
If its thoughts of zombies that keep you awake at night, you shouldnt be worried about zombie humans; its the carpenter ants (Camponotus castaneus) that should concern you most. When infected by a specialised fungus (Ophiocordyceps unilateralis sensu lato), the hapless ants are unable to resist its potent power. Losing free will, the unfortunate victims locate tall pieces of vegetation, marching to a high point before the fungal infection forces them to clamp their mandibles - jaws - tightly onto a leaf vein or twig. There, the ill-fated host expires, only to be consumed from within by its evil fungal lodger, ready to scatter its spores below in the hope of infecting the next unsuspecting victim. Yet, despite the insects loss of control, Colleen Mangold from Pennsylvania State University, USA, explains that the fungus does not attack their brains directly: the mandibular muscles ... of infected ants are extensively colonised by the fungus, she says. Wondering how the fungus exerts control ...
. There are many species of Carpenter ants and all are in the Genus of Camponotus. Northern Carpenter ants differ from the Southern Carpenter Ants...
At some point in the first half of the 20th century, a couple of ants hitched a ride on a boat and ended up on Christmas Island, an Australian territory in the Indian Ocean. And so began the rampage of the "yellow crazy ants," creatures that have been named one of the top 100 most invasive species in the world. On Christmas Island, scientists have now declared an "invasional meltdown" of the original ecosystem [Science News].. The latest evidence: The ants are so plentiful and bothersome that theyre preventing birds from feeding on berries, and the birds are therefore failing to disperse seeds around the island.. Researcher Dennis ODowd explains that the long-legged yellowish ants earned the named "crazy" because when they are disturbed they run around frenetically. ODowd says crazy ants form large super-colonies and cover ground and vegetation in densities of around 1000 ants per square metre. "These ants are three-dimensional foragers," he says [ABC Science]. The ants can thickly cover the ...
Siesta Fire Ant Bait Insecticide - 15 Lb is an insecticidal bait for fire ant control that can be used to treat existing fire ant infestations and highly attractive to imported and native fire ants.
Since both pest and non-pest ant species so commonly exist in the same orchard, monitoring plays an important role in efficient ant management. In agricultural cropping environments, coarse morphological differences, such as number of nodes on the petiole, presence of a sting, and color and size provide enough information to properly identify pest and non-pest ants. Learning about foraging activity and behavior, nest location and manner in which ants deposit tailings around the entrance hole is also helpful when distinguishing different ant species.. The UC IPM link above provides descriptions and a key for identification. In addition to what is on the website, other characteristics can help in identification. For instance, during hot daytime temperatures the foraging activity of southern fire ant diminishes considerably, while that of the native gray remains high. Also, during foraging, the native gray moves in a more herky-jerkey fashion than the southern fire ant. Both the southern fire ant ...
Fire ants can wreak havoc on yards while posing a health risk to humans and animals. Some methods of getting rid of fire ants are expensive and time-consuming. One home remedy that can be used is human urine, which drives fire ants away and kills them outright if applied directly. This is possibly an infinitely more cost-efficient method of warding fire ants from your property than hiring an exterminator.. ...
ants have a skinny little waist through which their digestive tract must pass. Solid food would lodge in the bottleneck and kill the ant, so the ants cant eat solids. They can only drink.. Yet, in forgoing solid food ants miss out on all sorts of protein available in the environment. Ants must either give up protein or figure out how to convert solids into drinkable juice. Thats where the larvae come in.. Larvae are made to eat and can handle all manner of food. They consume the solids that the worker ants have brought back to the nest and, after a little digestion, pass the protein back as a liquid. Most ant species have a simple, elegant way to do this: they regurgitate for the adults when prompted. But this direct food-passing behavior only appears in the more recent ant lineages. The ancient subfamily Amblyoponinae- including Adetomyrma- diverged from the rest of the ants over 100 million years ago and couldnt inherit this sensible way of doing things.. Natural selection is a blind ...