The Aquatic World of Penguins / Fascinating Life Sciences (PDF)
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Centuries ago, when penguins were first encountered by European explorers, they were not thought to be birds but rather a fish-like relative. Subsequent accumulation of knowledge has shown penguins to be an avian species with unrivaled aquatic attributes, owing to a number of evolutionary adaptations: shape change, low drag, ability to regulate buoyancy, and extraordinary surface compliancy from their featheration. They are indeed the most extremely specialized diving bird, having given up flight (which otherwise is hugely advantageous) to the benefit of underwater prowess (such as speed, maneuverability and an ability to exploit an extraordinary range of depths). This flightlessness, however, also comes with costs that are substantial for a seabird (such as the inability to cover large distances quickly in reaction to ephemeral prey); and the energy needed to cope with moving through an aqueous environment, which is more resistant than air. For penguins, the high energetic costs inexploiting the ocean environment thus makes them especially sensitive to changes in food availability or their access to their prey.
While a number of "penguin books" cover the natural history, mainly of breeding aspects, few address in much detail the incredible aquatic nature of these creatures. A huge amount of information has been amassed over recent past decades thanks to dramatic advances in microelectronics, bio-logging and maturation of some long-term studies of penguin life history. This work represents an integration of all these data with charts, maps and graphs, along with richly illustrated photos by experts in the field.
Rory Wilson is a professor in zoology within the department of biosciences at Swansea University, Wales, UK. He too, has been actively working with penguins for more than 40 years with understanding their marine ecology being his primary research thrust. His work involves developing and using new methods, particularly animal-attached tags, to study the behavioral ecology of enigmatic animals that are, otherwise, difficult to study. He has worked with ten penguin species but has also been involved in work in Africa, both Americas, Antarctica, Australia, the far- and middle East and Europe, with animals as diverse as albatrosses, armadillos, badgers, cheetahs, condors, sharks and sloths. He was bestowed a Rolex Award for Enterprise in 2006 for his animal tag developments. He was chief scientific consultant for Nat Geo's highly
- Autoren: David G Ainley , Rory P Wilson
- 2023, 1st ed. 2023, 567 Seiten, Englisch
- Verlag: Springer International Publishing
- ISBN-10: 3031339908
- ISBN-13: 9783031339905
- Erscheinungsdatum: 10.11.2023
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- Dateiformat: PDF
- Grösse: 36 MB
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