scholarly journals Support for the climatic variability hypothesis depends on the type of thermal plasticity: lessons from predation rates

Oikos ◽  
2020 ◽  
Vol 129 (7) ◽  
pp. 1040-1050 ◽  
Author(s):  
Ying‐Jie Wang ◽  
Robby Stoks ◽  
Arnaud Sentis ◽  
Nedim Tüzün
Keyword(s):  
Climatic Variability ◽  
Thermal Plasticity ◽  
Climatic Variability Hypothesis ◽  
Predation Rates

scholarly journals Global variation in thermal tolerances and vulnerability of endotherms to climate change

2014 ◽  
Vol 281 (1789) ◽  
pp. 20141097 ◽  
Author(s):  
Imran Khaliq ◽  
Christian Hof ◽  
Roland Prinzinger ◽  
Katrin Böhning-Gaese ◽  
Markus Pfenninger
Keyword(s):  
Climate Change ◽  
Climatic Variability ◽  
Empirical Support ◽  
Analytical Framework ◽  
Global Scale ◽  
Physiological Data ◽  
Global Changes ◽  
Tropical Regions ◽  
Species Vulnerability ◽  
Climatic Variability Hypothesis

The relationships among species' physiological capacities and the geographical variation of ambient climate are of key importance to understanding the distribution of life on the Earth. Furthermore, predictions of how species will respond to climate change will profit from the explicit consideration of their physiological tolerances. The climatic variability hypothesis, which predicts that climatic tolerances are broader in more variable climates, provides an analytical framework for studying these relationships between physiology and biogeography. However, direct empirical support for the hypothesis is mostly lacking for endotherms, and few studies have tried to integrate physiological data into assessments of species' climatic vulnerability at the global scale. Here, we test the climatic variability hypothesis for endotherms, with a comprehensive dataset on thermal tolerances derived from physiological experiments, and use these data to assess the vulnerability of species to projected climate change. We find the expected relationship between thermal tolerance and ambient climatic variability in birds, but not in mammals—a contrast possibly resulting from different adaptation strategies to ambient climate via behaviour, morphology or physiology. We show that currently most of the species are experiencing ambient temperatures well within their tolerance limits and that in the future many species may be able to tolerate projected temperature increases across significant proportions of their distributions. However, our findings also underline the high vulnerability of tropical regions to changes in temperature and other threats of anthropogenic global changes. Our study demonstrates that a better understanding of the interplay among species' physiology and the geography of climate change will advance assessments of species' vulnerability to climate change.

Testing the climatic variability hypothesis in edaphic and subterranean Collembola (Hexapoda)

2018 ◽  
Vol 78 ◽  
pp. 391-400 ◽  
Author(s):  
Natália Raschmanová ◽  
Vladimír Šustr ◽  
Ľubomír Kováč ◽  
Andrea Parimuchová ◽  
Miloslav Devetter
Keyword(s):  
Climatic Variability ◽  
Climatic Variability Hypothesis

scholarly journals The Rapoport effect and the climatic variability hypothesis in Early Jurassic ammonites

Palaeontology ◽  
2018 ◽  
Vol 61 (6) ◽  
pp. 963-980 ◽  
Author(s):  
Axelle Zacaï ◽  
Arnaud Brayard ◽  
Rémi Laffont ◽  
Jean-Louis Dommergues ◽  
Christian Meister ◽  
...  
Keyword(s):  
Climatic Variability ◽  
Early Jurassic ◽  
Climatic Variability Hypothesis

Within-Species Digestive Tract Flexibility in Rufous-Collared Sparrows and the Climatic Variability Hypothesis

2011 ◽  
Vol 84 (4) ◽  
pp. 377-384 ◽  
Author(s):  
Karin Maldonado ◽  
Francisco Bozinovic ◽  
José M. Rojas ◽  
Pablo Sabat
Keyword(s):  
Digestive Tract ◽  
Climatic Variability ◽  
Climatic Variability Hypothesis

Phytoplankton of a subarctic lake under climatic variability

2019 ◽  
Vol 56 (2) ◽  
pp. 51
Author(s):  
A. N. Sharov ◽  
V. N. Nikulina ◽  
A. A. Maximov ◽  
Keyword(s):  
Climatic Variability ◽  
Subarctic Lake

Effects of Predation and Trophic Conditions on the Reproduction of Tylototriton verrucosus (Caudata: Salamandridae) in Darjeeling

2011 ◽  
Vol 4 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Ritwik Dasgupta
Keyword(s):  
Frequency Distribution ◽  
Primary Productivity ◽  
Egg Size ◽  
Zooplankton Abundance ◽  
Trophic Conditions ◽  
Size Frequency Distribution ◽  
Size Frequency ◽  
High Predation ◽  
Hatchling Size ◽  
Predation Rates

The facts that small hatchlings emerged from small eggs laid under high predation levels prevailing at the lower altitudes of distribution of this species in Darjeeling while larger hatchlings emerged from larger eggs laid under lower levels of predation at higher altitudes, show that predation is not selected for large egg and initial hatchling size in this salamandrid species. Metamorphic size was small under high predation rates because this species relied on crypsis for evading predators. Egg and hatchling size are related inversely to levels of primary productivity and zooplankton abundance in lentic habitats. Hatchling sizes are related positively to egg size and size frequency distribution of zooplankton. Small egg and small hatchling size have been selected for at the lower altitudes of distribution of this salamandrid in Darjeeling because predation rates increased in step with improvement in trophic conditions at the lower altitudes.

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