The sole family in the order Sphenisciformes, comprised of 17 species of penguins in six genera. They are flightless seabirds of the Southern Hemisphere, highly adapted for marine life.
Sounds used in animal communication.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Those psychological characteristics which differentiate individuals from one another.
An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.
I'm sorry for any confusion, but the term "Argentina" is not a medical concept or condition that has a defined meaning within the medical field. Argentina is actually the second largest country in South America, and is known for its rich cultural history, diverse landscapes, and significant contributions to fields such as science, arts, and sports. If you have any questions related to healthcare, medicine, or biology, I would be happy to try to help answer those!
A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.

Uncoupling protein and ATP/ADP carrier increase mitochondrial proton conductance after cold adaptation of king penguins. (1/135)

Juvenile king penguins develop adaptive thermogenesis after repeated immersion in cold water. However, the mechanisms of such metabolic adaptation in birds are unknown, as they lack brown adipose tissue and uncoupling protein-1 (UCP1), which mediate adaptive non-shivering thermogenesis in mammals. We used three different groups of juvenile king penguins to investigate the mitochondrial basis of avian adaptive thermogenesis in vitro. Skeletal muscle mitochondria isolated from penguins that had never been immersed in cold water showed no superoxide-stimulated proton conductance, indicating no functional avian UCP. Skeletal muscle mitochondria from penguins that had been either experimentally immersed or naturally adapted to cold water did possess functional avian UCP, demonstrated by a superoxide-stimulated, GDP-inhibitable proton conductance across their inner membrane. This was associated with a markedly greater abundance of avian UCP mRNA. In the presence (but not the absence) of fatty acids, these mitochondria also showed a greater adenine nucleotide translocase-catalysed proton conductance than those from never-immersed penguins. This was due to an increase in the amount of adenine nucleotide translocase. Therefore, adaptive thermogenesis in juvenile king penguins is linked to two separate mechanisms of uncoupling of oxidative phosphorylation in skeletal muscle mitochondria: increased proton transport activity of avian UCP (dependent on superoxide and inhibited by GDP) and increased proton transport activity of the adenine nucleotide translocase (dependent on fatty acids and inhibited by carboxyatractylate).  (+info)

Antennae on transmitters on penguins: balancing energy budgets on the high wire. (2/135)

The effect of externally mounted antennae on the energetics of penguins was studied by mounting various antennae on a transducer fixed to a model Magellanic penguin Spheniscus magellanicus to determine drag, run at speeds of up to 2 m s(-1) in a swim canal. For rigid antennae set perpendicular to the water flow, measured drag increased with increasing swim speed. Increasing antenna length (for lengths between 100 and 200 mm) or diameter (for diameters between 1 and 4 mm) resulted in accelerating increased drag as a function of both antenna length and diameter. Where antennae were positioned at acute angles to the water flow, drag was markedly reduced, as was drag at higher speeds in flexible antennae. These results were incorporated in a model on the foraging energetics of free-living Magellanic penguins using data (on swim speeds, intervals between prey encounters, amount ingested per patch and dive durations) derived from previously published work and from a field study conducted on birds from a colony at Punta Norte, Argentina, using data loggers. The field work indicated that free-living birds have a foraging efficiency (net energy gain/net energy loss) of about 2.5. The model predicted that birds equipped with the largest rigid external antennae tested (200 mm x 3 mm diameter), set perpendicular to water flow, increased energy expenditure at normal swim speeds of 1.77 m s(-1) by 79% and at prey capture speeds of 2.25 m s(-1) by 147%, and ultimately led to a foraging efficiency that was about 5 times less than that of unequipped birds. Highly flexible antennae were shown to reduce this effect considerably. Deleterious antenna-induced effects are predicted to be particularly critical in penguins that have to travel fast to capture prey. Possible measures taken by the birds to increase foraging efficiency could include reduced travelling speed and selection of smaller prey types. Suggestions are made as to how antenna-induced drag might be minimized for future studies on marine diving animals.  (+info)

Adjustments of gastric pH, motility and temperature during long-term preservation of stomach contents in free-ranging incubating king penguins. (3/135)

Male king penguins are able to store undigested food in their stomach for up to 3 weeks during their incubation fast, which evidently implies some modification of their digestive process. Using small electronic recorders, we studied the change in gastric pH, motility and temperature during the first week of food storage. The pH could be maintained at values as high as 6 throughout the incubation fast, a pH that is unfavourable for avian gastric proteinase activity. Gastric motility was never completely inhibited but could be markedly reduced. Stomach temperature was maintained at around 38 degrees C. The fact that stomach temperature of incubating birds did not show a daily rhythmic fluctuation as seen in non-breeding birds could be due to temperature constraints on embryo development. Thus the present study demonstrates substantial adjustments of pH and gastric motility in incubating king penguins, which may contribute to the inhibition of digestive gastric processes.  (+info)

Penguins and their noisy world. (4/135)

Penguins identify their mate or chick by an acoustic signal, the display call. This identification is realized in a particularly constraining environment: the noisy world of a colony of thousands of birds. To fully understand how birds solve this problem of communication, we have done observations, acoustic analysis, propagation and playback experiments with 6 species of penguins studied in the field. According to our results, it appears that penguins use a particularly efficient "anti-confusion" and "anti-noise" coding system, allowing a quick identification and localization of individuals on the move in a noisy crowd.  (+info)

Heart rate and energetics of free-ranging king penguins (Aptenodytes patagonicus). (5/135)

The main objective of this study was to determine heart rate (fh) and the energetic costs of specific behaviours of king penguins while ashore and while foraging at sea during their breeding period. In particular, an estimate was made of the energetic cost of diving in order to determine the proportion of dives that may exceed the calculated aerobic dive limit (cADL; estimated usable O2 stores/estimated rate of oxygen consumption during diving). An implanted data logger enabled fh and diving behaviour to be monitored from 10 free-ranging king penguins during their breeding period. Using previously determined calibration equations, it was possible to estimate rate of oxygen consumption (VO2) when the birds were ashore and during various phases of their foraging trips. Diving behaviour showed a clear diurnal pattern, with a mixture of deep (>40 m), long (>3 min) and shallow (<40 m), short (<3 min) dives from dawn to dusk and shallow, short dives at night. Heart rate during dive bouts and dive cycles (dive + post-dive interval) was 42% greater than that when the birds were ashore. During diving, fh was similar to the 'ashore' value (87+/-4 beats min(-1)), but it did decline to 76% of the value recorded from king penguins resting in water. During the first hour after a diving bout, fh was significantly higher than the average value during diving (101+/-4 beats min(-1)) and for the remainder of the dive bout. Rates of oxygen consumption estimated from these (and other) values of fh indicate that when at sea, metabolic rate (MR) was 83% greater than that when the birds were ashore [3.15 W kg(-1) (-0.71, +0.93), where the values in parentheses are the computed standard errors of the estimate], while during diving bouts and dive cycles, it was 73% greater than the 'ashore' value. Although estimated MR during the total period between dive bouts was not significantly different from that during dive bouts [5.44 W kg(-1) (-0.30, +0.32)], MR during the first hour following a dive bout was 52% greater than that during a diving bout. It is suggested that this large increase following diving (foraging) activity is, at least in part, the result of rewarming the body, which occurs at the end of a diving bout. From the measured behaviour and estimated values of VO2, it was evident that approximately 35% of the dives were in excess of the cADL. Even if VO2 during diving was assumed to be the same as when the birds were resting on water, approximately 20% of dives would exceed the cADL. As VO2 during diving is, in fact, that estimated for a complete dive cycle, it is quite feasible that VO2 during diving itself is less than that measured for birds resting in water. It is suggested that the regional hypothermia that has been recorded in this species during diving bouts may be at least a contributing factor to such hypometabolism.  (+info)

Why do macaroni penguins choose shallow body angles that result in longer descent and ascent durations? (6/135)

It is generally assumed that air-breathing aquatic animals always choose the shortest route to minimize duration for transit between the surface and foraging depth in order to maximize the proportion of time spent foraging. However, empirical data indicate that the body angles of some diving animals are rarely vertical during descent and ascent. Why do they choose shallower body angles that result in longer descent and ascent durations? To investigate this question, we attached acceleration data loggers to eight female macaroni penguins, breeding on the Kerguelen Islands (48 degrees 45'-50 degrees 00' S, 68 degrees 45'-70 degrees 58' E; South Indian Ocean), to record depth, two-dimensional acceleration (stroke cycle frequency and body angle) and temperature. We investigated how they controlled body angle and allocated their submerged time. The instrumented females performed multiple dives (N=6952) with a mean dive depth for each bird ranging from 24.5+/-28.5 m to 56.4+/-75.1 m. Mean body angles during descent and ascent were not vertical. There was large variation in mean descent and ascent angles for a given dive depth, which, in turn, caused large variation in descent and ascent duration. Body angles were significantly correlated with time spent at the bottom-phase of the dive. Birds that spent long periods at the bottom exhibited steep body angles during ascent and subsequent descent. By contrast, they adopted shallow body angles after they had short or no bottom phases. Our results suggest that macaroni penguins stay at the bottom longer after encountering a good prey patch and then travel to the surface at steep body angles. If they do not encounter prey, they discontinue the dive, without staying at the bottom, ascend at shallow body angles and descend at shallow body angles in a subsequent dive. A shallow body angle can increase the horizontal distance covered during a dive, contributing to the move into a more profitable area in the following dive. During the ascent, in particular, macaroni penguins stopped beating their flippers. The buoyantly gliding penguins can move horizontally with minimum stroking effort before reaching the surface.  (+info)

Penguin-mounted cameras glimpse underwater group behaviour. (7/135)

Marine birds and mammals spend most of their lives in the open ocean far from human observation, which makes obtaining information about their foraging behaviour difficult. Here, we show, by use of a miniaturized digital camera system, the first direct evidence (to our knowledge) of underwater group behaviour in free-ranging penguins. Penguins swim closely accompanied by other bird(s) during 24% of their possible foraging dives. This finding confirms that such miniaturized camera technology has broad applicability for advancing our knowledge about the previously unknown social interactions of marine animals at depth.  (+info)

Long-term effects of flipper bands on penguins. (8/135)

Changes in seabird populations, and particularly of penguins, offer a unique opportunity for investigating the impact of fisheries and climatic variations on marine resources. Such investigations often require large-scale banding to identify individual birds, but the significance of the data relies on the assumption that no bias is introduced in this type of long-term monitoring. After 5 years of using an automated system of identification of king penguins implanted with electronic tags (100 adult king penguins were implanted with a transponder tag, 50 of which were also flipper banded), we can report that banding results in later arrival at the colony for courtship in some years, lower breeding probability and lower chick production. We also found that the survival rate of unbanded, electronically tagged king penguin chicks after 2-3 years is approximately twice as large as that reported in the literature for banded chicks.  (+info)

"Spheniscidae" is not a medical term, but a taxonomic category in zoology. It refers to the family of birds that includes penguins. The misinterpretation might have arisen because sometimes common names of animals are mistakenly used as scientific terms in a medical context. However, it's essential to use the correct and precise scientific terminology for accurate communication, especially in fields like medicine.

Animal vocalization refers to the production of sound by animals through the use of the vocal organs, such as the larynx in mammals or the syrinx in birds. These sounds can serve various purposes, including communication, expressing emotions, attracting mates, warning others of danger, and establishing territory. The complexity and diversity of animal vocalizations are vast, with some species capable of producing intricate songs or using specific calls to convey different messages. In a broader sense, animal vocalizations can also include sounds produced through other means, such as stridulation in insects.

An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.

In the context of medicine and healthcare, "individuality" refers to the unique characteristics, traits, and needs that distinguish one person from another. This concept recognizes that each patient is a distinct individual with their own genetic makeup, lifestyle factors, personal history, and social circumstances, all of which can influence their health status and response to medical interventions.

Individuality in healthcare emphasizes the importance of tailoring medical treatments and care plans to meet the specific needs and preferences of each patient, rather than relying on a one-size-fits-all approach. This personalized approach can lead to better outcomes, improved patient satisfaction, and reduced healthcare costs.

Factors that contribute to an individual's medical individuality include their genetic makeup, epigenetic factors, environmental exposures, lifestyle choices (such as diet, exercise, and substance use), and social determinants of health (such as income, education, and access to care). All of these factors can interact in complex ways to influence a person's health status and risk for disease.

Recognizing and respecting individuality is essential for providing high-quality, patient-centered care. Healthcare providers who take the time to understand their patients' unique needs and preferences are better able to build trust, promote adherence to treatment plans, and achieve positive outcomes.

The term "diving" is generally not used in the context of medical definitions. However, when referring to diving in relation to a medical or physiological context, it usually refers to the act of submerging the body underwater, typically for activities such as swimming, snorkeling, or scuba diving.

In a medical or physiological sense, diving can have specific effects on the human body due to changes in pressure, temperature, and exposure to water. Some of these effects include:

* Changes in lung volume and gas exchange due to increased ambient pressure at depth.
* Decompression sickness (DCS) or nitrogen narcosis, which can occur when dissolved gases form bubbles in the body during ascent from a dive.
* Hypothermia, which can occur if the water is cold and the diver is not adequately insulated.
* Barotrauma, which can occur due to pressure differences between the middle ear or sinuses and the surrounding environment.
* Other medical conditions such as seizures or heart problems can also be exacerbated by diving.

It's important for divers to undergo proper training and certification, follow safe diving practices, and monitor their health before and after dives to minimize the risks associated with diving.

I apologize for any confusion, but "Argentina" is a country in South America and not a medical term or concept. The term "argyria" may be what you're looking for, which is a rare condition resulting from the accumulation of silver compounds in the body, causing the skin to turn blue-gray. However, Argentina and argyria are two distinct terms with different meanings.

Vocal cords, also known as vocal folds, are specialized bands of muscle, membrane, and connective tissue located within the larynx (voice box). They are essential for speech, singing, and other sounds produced by the human voice. The vocal cords vibrate when air from the lungs is passed through them, creating sound waves that vary in pitch and volume based on the tension, length, and mass of the vocal cords. These sound waves are then further modified by the resonance chambers of the throat, nose, and mouth to produce speech and other vocalizations.

"Spheniscidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-27. Favaro L; Ozella L; Pessani D (20 ... "A new species of penguin (Spheniscidae: Spheniscus) and other birds for the late Pliocene of Chile". Biodiversity Heritage ... Stucchi, Marcelo (2003). "Una nueva especie de spheniscidae del Mioceno Tardío de la Formación Pisco, Perú". Bulletin de ...
Scharning K (2008). "Penguins Spheniscidae". Theme Birds on Stamps. self. Retrieved 29 March 2008. Scharning K (2008). "Bird ...
Family Spheniscidae Genus Aptenodytes: two species Genus Pygoscelis: three species Genus Eudyptula: one species Genus ... "Fossilworks: Spheniscidae". Paleobiology Database. University of Wisconsin-Madison. Retrieved 11 September 2023. "Handbook of ... Penguins are birds in the family Spheniscidae in the monotypic order Sphenisciformes. They inhabit high-productivity marine ... Spheniscidae)", Birds of the World, Cornell Lab of Ornithology, doi:10.2173/bow.spheni1.01, retrieved 27 September 2023 Davies ...
PDF fulltext Williams, Tony D. (1995). The penguins : Spheniscidae. Rory P. Wilson, P. Dee Boersma, David L. Stokes, Jeff ...
Williams, Tony D. (1995). The penguins : Spheniscidae. Rory P. Wilson, P. Dee Boersma, David L. Stokes, Jeff Davies, John Busby ...
Williams, Tony D. (1995). The penguins: Spheniscidae. Oxford, England: Oxford University Press. ISBN 0-19-854667-X. Wikispecies ...
Müller-Schwarze, Dietland; Müller-Schwarze, Christine (2004). Pinguine: Sphenisciformes, Spheniscidae. Westarp-Wiss.-Verlag-Ges ...
Williams, Tony D. (1995). The penguins: Spheniscidae. Bird families of the world. Oxford: Oxford Univ. Press. p. 137. ISBN 978- ...
Williams, Tony D. (1995). The Penguins: Spheniscidae. Oxford, UK: Oxford University Press. p. 147. ISBN 978-0-19-854667-2. v t ...
The family name of Spheniscidae was given by Charles Lucien Bonaparte from the genus Spheniscus, the name of that genus comes ... Williams, T.D. (1995). The penguins: Spheniscidae. New York: Oxford University Press. Thomas, D.B.; Fordyce, R.E. (2007). "The ... Some recent sources apply the phylogenetic taxon Spheniscidae to what here is referred to as Spheniscinae. Furthermore, they ... They were classified in 1831 by Charles Bonaparte in several distinct genera within the family Spheniscidae and order ...
Spheniscidae) from Uruguay". Journal of South American Earth Sciences. 96: Article 102332. Bibcode:2019JSAES..9602332A. doi: ...
17 species Family Spheniscidae: penguins Pan-oceanic; 120 species Family Diomedeidae: albatrosses Family Oceanitidae: austral ...
Spheniscidae). The species of bird and the type of oil can vary the effects of oil exposure. Birds affected often die from ...
1. Spheniscidae (penguins) to Laridae (gulls and terns). University of Chicago Press, Chicago, IL. Venegas and Jory (1979), ...
Most species of penguin (Spheniscidae) migrate by swimming. These routes can cover over 1,000 km (550 nmi). Dusky grouse ...
1: Spheniscidae (Penguins) to Laridae (Gulls and Allies). Chicago: University of Chicago Press. ISBN 978-0-226-05641-8. Boyle, ...
George G. Simpson (1973). "Tertiary Penguins (Spenisciformes: Spheniscidae) from Ysterplaats, Cape Town, South Africa". South ...
Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina. Ameghiniana 44. 417-426. Accessed 2018-09-11 ...
Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina. Ameghiniana 44. 417-426. Accessed 2018-09-11 ... Primer registro de cráneos asignados a Palaeospheniscus (Aves, Spheniscidae) procedentes de la Formación Bahía Inglesa (Mioceno ...
Spheniscidae penguins Procellariiformes (Tubenoses: pan-oceanic and pelagic; 93 species) Diomedeidae albatrosses Procellariidae ...
Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina". Ameghiniana. 44 (2): 417-426. Hildegarde ...
Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina. Ameghiniana 44. 417-426. Accessed 2018-09-11 ... Nuevos restos terciarios de Spheniscidae (Aves, sphenisciformes) procedentes de la Costa del Peru. Revista Española de ...
Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina. Ameghiniana 44. 417-426. Accessed 2019-04-05 ...
Blake, Emmet Reid (1977). Manual of Neotropical Birds: Spheniscidae (penguins) to Laridae (gulls and allies). Chicago: ...
Storrs L. Olson (1986). "A Replacement Name for the Fossil Penguin Microdytes Simpson (Aves: Spheniscidae)". Journal of ...
Blake (1977). Blake, Emmet Reid (1977). Manual of Neotropical Birds: Spheniscidae (penguins) to Laridae (gulls and allies). ...
Blake, Emmet Reid (1977). Manual of Neotropical Birds: Spheniscidae (penguins) to Laridae (gulls and allies). Chicago: ...
Order Sphenisciformes Family Spheniscidae Genus Crossvallia † C. unienwillia † Tambussi et al., 2005 C. waiparensis † Mayr et ... a new Spheniscidae (Sphenisciformes, Aves) from the Late Paleocene of Antarctica". Geobios. 38 (5): 667-675. Bibcode:2005Geobi ...
Bingham, Mike; Herrmann, Thora M. (2008). "Magellanic penguin (Spheniscidae) monitoring results for Magdalena Island (Chile) ...
Blake, Emmet Reid (1977). Manual of Neotropical Birds: Spheniscidae (penguins) to Laridae (gulls and allies). University of ...
Taxonomy: Clarke et al. (2003) and Ksepka et al. (2006) apply the phylogenetic taxon Spheniscidae what here is referred to as ... Family Spheniscidae *Subfamily Palaeeudyptinae - Giant penguins (fossil): The New Zealand Giant Penguins, Palaeeudyptinae, are ... Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds living almost exclusively in the ... Spheniscidae gen. et sp. indet (Late Oligocene/Early Miocene of Hakataramea, New Zealand)Madrynornis (Puerto Madryn Late ...
... June 26, 2023. January 16, 2020. by Gordon Ramel ... 17 species of penguin of the family Spheniscidae are all laid out in the below table. ...
Meaning of Spheniscidae. What does Spheniscidae mean? Information and translations of Spheniscidae in the most comprehensive ... Definition of Spheniscidae in the Definitions.net dictionary. ... Search for Spheniscidae on Amazon. *Search for Spheniscidae on ... What does Spheniscidae mean?. Definitions for Spheniscidae. sphenis·ci·dae. This dictionary definitions page includes all the ... Get even more translations for Spheniscidae ». Translation. Find a translation for the Spheniscidae definition in other ...
Adult sitting on nest with small chick in colony (Pygoscelis antarcticus, Spheniscidae), Antarctic Peninsula, Antarctica Region ... Adult sitting on nest with small chick in colony (Pygoscelis antarcticus, Spheniscidae), Antarctic Peninsula, Antarctica Region ... Adult sitting on nest with small chick in colony (Pygoscelis antarcticus, Spheniscidae), Antarctic Peninsula, Antarctica Region ... Adult sitting on nest with small chick in colony (Pygoscelis antarcticus, Spheniscidae), Antarctic Peninsula, Antarctica Region ...
... antarctica krill crustacean genus new zealand foot flightless bird papunya avian incubation south america giraffe spheniscidae ... antarctica krill crustacean genus new zealand foot flightless bird papunya avian incubation south america giraffe spheniscidae ...
Penguins (Family Spheniscidae) Penguins are confined to the southern hemisphere. Fourteen species of these mostly ocean- ...
At Loro Parque we actively participate in the protection of gorillas and other primates through different initiatives. Find out here!
"Spheniscidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-27. Favaro L; Ozella L; Pessani D (20 ... "A new species of penguin (Spheniscidae: Spheniscus) and other birds for the late Pliocene of Chile". Biodiversity Heritage ... Stucchi, Marcelo (2003). "Una nueva especie de spheniscidae del Mioceno Tardío de la Formación Pisco, Perú". Bulletin de ...
Spheniscidae * Height 15 inches to 3 ½ feet * Weight 2 pounds to 80 pounds ...
Theyre birds that belong to the family Spheniscidae and one of the two species in the genus Aptenodytes. ...
Memorandum of Understanding concerning Conservation Measures for Marine Turtles of the Atlantic Coast of Africa. ...
60 Spheniscidae Penguins (18). PROCELLARIIFORMES (4) 61 Diomedeidae Albatrosses (15). 62 Oceanitidae Southern Storm-Petrels (9 ...
Spheniscidae. Genus:. Spheniscus. Scientific:. Spheniscus humboldti. Original description. Citation:. Meyen, FJF 1834 ...
Keywords: Spheniscidae, threats, mitigation, pollution, climate change, fisheries. Citation: Ropert-Coudert Y, Chiaradia A, ...
Family : Spheniscidae Species : Yellow-eyed Penguin Geographic range by countries species pictures. by the author all the ...
Gentoo penguins forage at sea close to the colony, and thus their chicks can be frequently fed. This may explain why Gentoo penguins rear two chicks each year. Gentoo penguin eggs are taken by skuas. Young birds are preyed upon by sheathbills, caracaras (falcons), kelp gulls, giant petrels and feral cats, while older birds are taken by leopard seals. Nests are often flattened by indifferent elephant seals as they move about the island. Unlike other penguin species, gentoo penguins may breed as early as two years of age. Both male and females aduls incubate the egg and brood the chick in shifts ...
Spheniscidae (Penguins). NT. To download data you need to give me your email address and agree to the terms & conditions. Email ...
Southern rockhopper penguins are small-bodied penguins, reaching heights of about two feet (0.6 m) and weights of only a few pounds. Southern rockhopper penguins have white fronts and black heads and hoods. Their beaks are bright orange, and their eyebrows are bright yellow. At the outer edge of the eyebrows, long yellow feathers extend off the sides of the head.. This species nests along rocky shores on sub-Antarctic islands. Males and females care for the eggs and chicks together. Females typically lay two eggs, but only rarely (and only in certain localities) does the pair incubate both and raise two chicks. Southern rockhopper penguins are foraging predators and excellent swimmers. They feed on krill and other pelagic crustaceans, as well as small fishes and squids. Their primary predators include fur seals and sea lions and also likely killer whales.. Though they have not been hunted and their eggs have not been collected for some time, southern rockhopper penguin populations are ...
61-76 സെന്റിമീറ്റർ (24-30 ഇഞ്ച്) ഉയരവും 2.7 മുതൽ 6.5 കിലോഗ്രാം വരെ ഭാരം വരുന്ന ഇടത്തരം വലിപ്പമുള്ള പെൻ‌ഗ്വിനുകളാണ് മഗല്ലനിക് പെൻ‌ഗ്വിനുകൾ. ഇവയിലെ ആൺ ഇനം പിടകളേക്കാൾ വലുതാണ്. മഗല്ലാനിക് പെൻ‌ഗ്വിനുകൾ വെള്ളത്തിൽ നിന്നും തങ്ങൾക്ക് ആവശ്യമായ ആഹാരം കണ്ടെത്തുന്നു. കട്ടിൽ ഫിഷ്, കണവ, ക്രിൽ എന്നിവയെയാണ് ഇവറ്റകൾ പ്രധാനമായും ഭക്ഷണമാക്കുന്നത്. പ്രായപൂർത്തിയായ പെൻ‌ഗ്വിനുകൾ ഇരയെ ...
Penguins ( Spheniscidae ). Galapagos Penguin - Spheniscus mendiculus. Albatrosses ( Diomedeidae ). Waved Albatross - ...
Spheniscidae (Penguins). VU. Fregetta maoriana. New Zealand Storm-petrel. Oceanitidae (Southern Storm-petrels). CR ...
Contrasting genetic structuring between colonies of the worlds smallest penguin, Eudyptula minor (Aves: Spheniscidae). ...
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VOLUMETRIC ANALYSIS OF THE VISUAL, TRIGEMINAL AND ACOUSTIC NUCLEI IN FOUR AVIAN SPECIES (RHEIDAE, SPHENISCIDAE, TINAMIDAE) BEE ...
... family Spheniscidae) of the southern hemisphere." That description seems simple enough, but definitions are not what people ...
Evolution of embryonic developmental period in the marine bird families Alcidae and Spheniscidae: Roles for nutrition and ...
Spheniscidae. Genus. Eudyptula. Species. E. minor. Also Featured In: Common Melbourne Birds, Birds Youll Find in Night ...
  • Penguins (order Sphenisciformes , family Spheniscidae ) are a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere. (earthlife.net)
  • Penguins (order Sphenisciformes , family Spheniscidae ) are a group of aquatic flightless birds. (definitions.net)
  • Spheniscidae is the scientific term for the family of birds known more commonly as penguins. (definitions.net)
  • Penguins (Family Spheniscidae) Penguins are confined to the southern hemisphere. (prpw.com.au)
  • For example, the diving penguins (Spheniscidae) of the south pole matched auks (Alcidae) in the northern hemisphere while the fruit eating toucans (Ramphastidae) of South America matched the hornbills (Bucerotidea) in Africa and Asia. (cosmosmagazine.com)
  • They're birds that belong to the family Spheniscidae and one of the two species in the genus Aptenodytes . (worldatlas.com)
  • They are members of the Spheniscidae family, which includes 18 different penguin species. (wildlifeinformer.com)
  • The Merriam-Webster dictionary defines the word "penguin" as "any of various erect short-legged flightless aquatic birds (family Spheniscidae) of the southern hemisphere. (psychologicalscience.org)
  • Not to be confused with World Penguin Day (which happens on April 25), Penguin Awareness Day encourages you to cultivate even more knowledge of the Spheniscidae family. (mentalfloss.com)
  • Evolution of embryonic developmental period in the marine bird families Alcidae and Spheniscidae: Roles for nutrition and predation? (marineornithology.org)
  • This dictionary definitions page includes all the possible meanings, example usage and translations of the word Spheniscidae . (definitions.net)
  • Antarctic Fur Seal immature male (Arctocephalus gazella) near King Penguins colony (Aptenodytes patagonicus, Spheniscidae) on Salisbury Plain, Bay of Isles, South Georgia. (naturespic.com)
  • Following films that have recorded Adelie penguins leaping en masse from the edge of the ice with Leopard seals lurking in the water below, researchers have found that adults are at greater risk when returning from trips out to sea. (newzealandbirds.co.nz)
  • The Penguins - Spheniscidae (iti Ingles). (wikipedia.org)
  • Orden de AVES con más de 300 especies que habitan principalmente en las aguas costeras, playas y marismas. (bvsalud.org)
  • En este orden se incluyen las aves costeras, gaviotas y golondrinas de mar. (bvsalud.org)