Results 21 to 30 of about 6,647 (234)

Temperature, Demography, and Ectotherm Fitness [PDF]

open access: yesThe American Naturalist, 2001
Temperature has profound effects on ectotherms such as plants, invertebrates, and lower vertebrates (Hochachka and Somero 1984; Cossins and Bowler 1987). The impact of temperature is often depicted graphically as a “thermal performance curve,” which plots performance as a function of body temperature (Huey and Stevenson 1979).
Huey, Raymond B., Berrigan, David
openaire   +5 more sources

Large‐scale patterns of green turtle trophic ecology in the eastern Pacific Ocean

open access: yesEcosphere, 2021
Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, and influencing key demographic parameters such as somatic growth, maturation, and survival.
Jeffrey A. Seminoff   +20 more
doaj   +1 more source

Climate Change, Extreme Temperatures and Sex-Related Responses in Spiders

open access: yesBiology, 2023
Climatic extremes, such as heat waves, are increasing in frequency, intensity and duration under anthropogenic climate change. These extreme events pose a great threat to many organisms, and especially ectotherms, which are susceptible to high ...
Jeffrey A. Harvey, Yuting Dong
doaj   +1 more source

Behavioral fever in ectothermic vertebrates [PDF]

open access: yesDevelopmental & Comparative Immunology, 2017
Fever is an evolutionary conserved defense mechanism which is present in both endothermic and ectothermic vertebrates. Ectotherms in response to infection can increase their body temperature by moving to warmer places. This process is known as behavioral fever.
Krzysztof Rakus   +2 more
openaire   +4 more sources

Thermal ecology and baseline energetic requirements of a large‐bodied ectotherm suggest resilience to climate change

open access: yesEcology and Evolution, 2021
Most studies on how rising temperatures will impact terrestrial ectotherms have focused on single populations or multiple sympatric species. Addressing the thermal and energetic implications of climatic variation on multiple allopatric populations of a ...
Hayley L. Crowell   +10 more
doaj   +1 more source

Thermal melanism in ectotherms [PDF]

open access: yesJournal of Thermal Biology, 2007
Abstract Whether melanism plays a significant role in thermoregulation has been a persistent question in studies of thermal biology of ectotherms. This review provides a synthesis of the thermal melanism hypothesis which states that dark individuals (i.e.
James R. Spotila   +3 more
openaire   +2 more sources

Latitudinal directionality in ectotherm invasion success [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2020
A striking pattern, seen in both fossil and extant taxa, is that tropical ectotherms are better at invading temperate habitats than vice versa. This is puzzling because tropical ectotherms, being thermal specialists, face a harsher abiotic environmentandcompetition from temperate residents that are thermal generalists.
Priyanga Amarasekare, Margaret W. Simon
openaire   +3 more sources

Non-Mammalian Vertebrates: Distinct Models to Assess the Role of Ion Gradients in Energy Expenditure

open access: yesFrontiers in Endocrinology, 2017
Animals store metabolic energy as electrochemical gradients. At least 50% of mammalian energy is expended to maintain electrochemical gradients across the inner mitochondrial membrane (H+), the sarcoplasmic reticulum (Ca++), and the plasma membrane (Na ...
Caroline E. Geisler   +2 more
doaj   +1 more source

Assessing thermal ecology of herpetofauna across a heterogeneous microhabitat mosaic in a changing aridland riparian system

open access: yesEnvironmental Research: Ecology, 2023
Species–environmental relationships, including drivers of body temperature ( T _B ), are important for understanding thermal ecology and physiological needs of species during climate change.
Brian R Blais   +4 more
doaj   +1 more source

Variation in Thermal Tolerance and Its Relationship to Mitochondrial Function Across Populations of Tigriopus californicus

open access: yesFrontiers in Physiology, 2019
Variation in thermal tolerance plays a key role in determining the biogeographic distribution of organisms. Consequently, identifying the mechanistic basis for thermal tolerance is necessary for understanding not only current species range limits but ...
Alice E. Harada   +2 more
doaj   +1 more source

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