Aestivation

Aestivation PDF Author: Carlos Arturo Navas
Publisher: Springer Science & Business Media
ISBN: 3642024211
Category : Science
Languages : en
Pages : 273

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Book Description
Numerous animal species live in environments characterized by a seasonal reduction in the availability of water, which often but not always occurs when temperatures are highest. For many such animals, survival during the toughest season requires spending long periods of time in a rather inactive state known as aestivation. But aestivation is much more than remaining inactive. Successful aestivation requires the selection of a proper microhabitat, variable degrees of metabolic arrest and responsiveness to external stimuli, the ability to sense the proper time of year for emergence, the preservation of inactive tissue, and much more. So, aestivation involves a complex collection of behaviors, ecological associations and physiological adjustments that vary across species in their type, magnitude and course. This book seeks to explore the phenomenon of aestivation from different perspectives and levels of organization, ranging from microhabitat selection to genetic control of physiological adjustments. It brings together authors from across the world working on different systematic groups, approaches, and questions, but who are all ultimately working to better understand the complex issue of aestivation.

Aestivation

Aestivation PDF Author: Carlos Arturo Navas
Publisher: Springer Science & Business Media
ISBN: 3642024211
Category : Science
Languages : en
Pages : 273

Get Book Here

Book Description
Numerous animal species live in environments characterized by a seasonal reduction in the availability of water, which often but not always occurs when temperatures are highest. For many such animals, survival during the toughest season requires spending long periods of time in a rather inactive state known as aestivation. But aestivation is much more than remaining inactive. Successful aestivation requires the selection of a proper microhabitat, variable degrees of metabolic arrest and responsiveness to external stimuli, the ability to sense the proper time of year for emergence, the preservation of inactive tissue, and much more. So, aestivation involves a complex collection of behaviors, ecological associations and physiological adjustments that vary across species in their type, magnitude and course. This book seeks to explore the phenomenon of aestivation from different perspectives and levels of organization, ranging from microhabitat selection to genetic control of physiological adjustments. It brings together authors from across the world working on different systematic groups, approaches, and questions, but who are all ultimately working to better understand the complex issue of aestivation.

Trace Fossils

Trace Fossils PDF Author: William Miller III
Publisher: Elsevier
ISBN: 0080475353
Category : Science
Languages : en
Pages : 637

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Book Description
This book serves as an up-to-date introduction, as well as overview to modern trace fossil research and covers nearly all of the essential aspects of modern ichnology. Divided into three section, Trace Fossils covers the historical background and concepts of ichnology, on-going research problems, and indications about the possible future growth of the discipline and potential connections to other fields. This work is intended for a broad audience of geological and biological scientists. Workers new to the field could get a sense of the main concepts of ichnology and a clear idea of how trace fossil research is conducted. Scientists in related disciplines could find potential uses for trace fossils in their fields. And, established workers could use the book to check on the progress of their particular brand of ichnology. By design, there is something here for novice and veteran, insider and outsider, and for the biologically-oriented workers and for the sedimentary geologists.* Presents a review of the state of ichnology at the beginning of the 21st Century* Summarizes the basic concepts and methods of modern trace fossil research* Discusses crucial background information about the history of trace fossil research, the main concepts of ichnology, examples of current problems and future directions, and the potential connections to other disciplines within both biology and geology

Beast Companions

Beast Companions PDF Author: John Foster
Publisher: Indiana University Press
ISBN: 0253069416
Category : Nature
Languages : en
Pages : 258

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Book Description
Despite their fame and reputation, dinosaurs represent only half the story of the Mesozoic Era. In Beast Companions: The Unsung Animals of the Dinosaurs' World, paleontologist John Foster explores the often-overlooked animals that coexisted with them. These ancient species, often equally remarkable as their dinosaur neighbors, can provide valuable insights into the biotic history of our planet. In some cases, these animals reveal just as much, if not more, about the extinct ecosystems of the time as the dinosaurs themselves. By drawing on a wealth of current and past discoveries, Foster embarks on a sweeping journey across 164 million years to visit the beast companions of the dinosaurs. Along the way, he examines fish, insects, the first frogs and salamanders, turtles, snakes and lizards, marine reptiles, crocodiles, pterosaurs, birds, mammals, and other animals of the Mesozoic Era. Beast Companions is a groundbreaking exploration of the story of these contemporaries of the dinosaurs that set the modern world in motion more than 200 million years ago

The Carboniferous-Permian Transition

The Carboniferous-Permian Transition PDF Author: Spencer G. Lucas
Publisher: New Mexico Museum of Natural History and Science
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 481

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Book Description


Palaeobiology and Geobiology of Fossil Lagerstätten through Earth History

Palaeobiology and Geobiology of Fossil Lagerstätten through Earth History PDF Author: Reitner, Joachim
Publisher: Universitätsverlag Göttingen
ISBN: 3863951352
Category : Science
Languages : en
Pages : 220

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Book Description
Exceptionally preserved fossils from Fossil Lagerstätten contribute greatly to resolving details on the history of life on Earth. For the first time, the “Paläontologische Gesellschaft” (PalGes) and the “Palaeontological Society of China” (PSC) combined forces to jointly present an international conference aimed to highlight and encourage the study of exceptionally well-preserved fossil sites worldwide. The conference focused on all aspects of palaeontology and geobiology, also incorporating related fields like biogeochemistry, biology, sedimentology and stratigraphy. The present volume contains the abstracts of more than 275 lectures and posters presented during the joint international conference “Palaeobiology & Geobiology of Fossil Lagerstätten through Earth History”. This year’s conference was held at the northern campus of the Georg-August University in Göttingen, Germany, from September 23-27, 2013. More than three hundred palaeontologists, biologists, geologists and other scientists and researchers from sixteen countries, mainly from Germany and the P. R. of China, participated.

Nature's Holism

Nature's Holism PDF Author: Laurence Evans
Publisher: iUniverse
ISBN: 1583482911
Category : Nature
Languages : en
Pages : 526

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Book Description
In the association of the bee and the flower is a very advanced reflection of the process of evolution through natural selection. Nature's Holism explores the coevolution of long associated species arriving at a holistic view of nature where the compatibility between species is significant. In nature there are two interacting forces. There is the numerical increase in numbers of a species, termed a force of "perpetuity". Increasing numbers of a single species have an inevitable impact on the environment. However, as each species survives within an ecological context, there is a feedback from the ecosystem as numbers increase, requiring a necessary compatibility with the ecosystem. "Fitness" is therefore defined, not only by quantitative representation of genes in the next generation (perpetuity), but also the qualitative condition of compatibility with the habitat or ecosystem that provided the conditions and resources for this success.

The Kinney Brick Quarry Lagerstätte, Late Pennsylvanian of New Mexico

The Kinney Brick Quarry Lagerstätte, Late Pennsylvanian of New Mexico PDF Author: Spencer G. Lucas
Publisher: New Mexico Museum of Natural History and Science
ISBN:
Category : Science
Languages : en
Pages : 468

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Book Description


The Compleat Lungfish

The Compleat Lungfish PDF Author: Grant Maierhofer
Publisher: Apocalypse Party
ISBN: 9781954899049
Category : Nature
Languages : en
Pages : 226

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Book Description
This World. This world as it is right there now. Some instruments behind it there. The abrasive throat against it. Where to put it? Where to align these things with these other things? Patricia Lee Smith screaming. Who is there screaming now? The figure still standing, hovering over the microphone, and the room is circling around him in a sweaty fugue. Someone of the people. The ones there needed this release, we're not sure who. I try to write to someone, I try to create this construct of writing to someone to tell them about this thing, and I'm not sure how exactly to explain it. Dear Al, from rehab, have you heard about this? Are you still living? Were you the one in the Jeep that flipped and killed you? Was that someone else? I want to show him this clip but I don't know why, I don't fully understand myself. I want to say something to this person to give them light or levity. I want to put myself out there in the world and go walking for ten hours straight. Ten hours, listening to the music over and over and over again, listening to the repetition until it becomes something else, something not repetition, something pushed through repetition, indifference, or difference, or caring, or disinterest. The drugs in Baltimore. The drugs in Washington D.C. The disparities there. The places being torn open there and made to rot there on their vines.

Guidebook Series

Guidebook Series PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 116

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Book Description


Journal of Vertebrate Paleontology

Journal of Vertebrate Paleontology PDF Author:
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 1198

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Book Description