Results 51 to 60 of about 6,647 (234)
Latitudinal Variation in Seasonal Activity and Mortality in Ratsnakes (Elaphe obsoleta)
The ecology of ectotherms should be particularly affected by latitude because so much of their biology is temperature dependent. Current latitudinal patterns should also be informative about how ectotherms will have to modify their behavior in response ...
Blouin-Demers, Gabriel+3 more
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Ectotherms Follow the Converse to Bergmann's Rule [PDF]
In a recent paper, Van Voorhies (1996) suggested that Bergmann size clines in ectotherms might result from developmental processes that cause cells to grow larger at lower temperatures. Van Voorhies (1996) found that when Caenorhabditis elegans was grown at cool temperatures cell sizes were larger than control groups reared in a warmer environment, and
openaire +3 more sources
In ectotherms, adult body size commonly declines with increasing environmental temperature, a pattern known as the temperature-size rule. One influential hypothesis explaining this observation is that the challenge of obtaining sufficient oxygen to ...
Sigurd Einum+2 more
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Isotopic Ordering in Eggshells Reflects Body Temperatures and Suggests Differing Thermophysiology in Two Cretaceous Dinosaurs [PDF]
Our understanding of the evolutionary transitions leading to the modern endothermic state of birds and mammals is incomplete, partly because tools available to study the thermophysiology of extinct vertebrates are limited.
Kohn, Matthew J.
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07 Intern Assignment Biological Adaptations [PDF]
WELCOME to WINDOWS on the INQUIRY CLASSROOM! You have landed on a piece of a National Science Foundation Project (DUE 1245730) directed by Professor Chris Bauer, Chemistry Department, University of New Hampshire.
Bauer, Christopher F.
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The immune system of ectothermic vertebrates
(Uploaded by Plazi for the Bat Literature Project) The adaptive immune system, as defined by T cell receptors, immunoglobulins, and the major histocompatibility complex (MHC), has been described definitively at the level of teleost fish. Cartilaginous fish, which display many of the hallmarks of such an adaptive system, nevertheless have several ...
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Acclimatization in the physiological performance of an introduced ectotherm
Phenotypic flexibility may facilitate range expansion by allowing organisms to maintain high levels of performance when introduced to novel environments. Phenotypic flexibility, such as reversible acclimatization, permits organisms to achieve high performance over a wide range of environmental conditions, without the costly allocation or acquisition ...
Chase T. Kinsey+8 more
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The use of natural variation in stable isotope ratios continues to be used in ecological studies without proper validation through laboratory studies. This study tested the effects of temperature, time, and turnover in the scales of juvenile corn snakes (
Samuel J. Hirt, Kent A. Hatch
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Temperature tolerance is critical for defining the fundamental niche of ectotherms and researchers classically use either static (exposure to a constant temperature) or dynamic (ramping temperature) assays to assess tolerance.
Lisa Bjerregaard Jørgensen+4 more
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Limpet feeding rate and the consistency of physiological response to temperature [PDF]
Thermal reaction norms are fundamental relationships for geographic comparisons of organism response to temperature. They are shaped by an organism’s environmental history and provide insights into both the global patterns of thermal sensitivity and the ...
Clarke, Andrew+5 more
core +2 more sources