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597 results on '"Spotila, James R."'

1. Image Plates

Author

Spotila, James R. and Santidrián Tomillo, Pilar

Published
2015

3. Index

Author

Spotila, James R. and Santidrián Tomillo, Pilar

Published
2015

5. Cover

Author

Spotila, James R. and Santidrián Tomillo, Pilar

Published
2015

7. Preface

Author

Spotila, James R. and Santidrián Tomillo, Pilar

Published
2015

11. Part I. BIOLOGY

Author

Spotila, James R. and Santidrián Tomillo, Pilar

Published
2015

33. Index

Author

Spotila, James R.

Published
2011

43. Preface

Author

Spotila, James R.

Published
2011

44. Contents

Author

Spotila, James R.

Published
2011

49. Dogs and Disease Threats to Giant Pandas in China

Author

YAN, XIA, OWENS, JACOB R., WEN, YIPING, SU, XIAOYAN, WANG, ZHENGHAO, LIU, SONGRUI, ZHANG, DONGSHENG, CALLAN, RAMANA, WENLEI, BI, QI, DUNWU, SPOTILA, JAMES R., HOU, RONG, and ZHANG, ZHIHE

Published
2020

50. Variability in thermal tolerance of clutches from different mothers indicates adaptation potential to climate warming in sea turtles.

Author

Kynoch, Camille, Paladino, Frank V., Spotila, James R., and Santidrián Tomillo, Pilar

Subjects
GLOBAL warming, TURTLE populations, LEATHERBACK turtle, FEMININE identity, SEA turtles, ANIMAL clutches, THERMAL tolerance (Physiology)
Abstract

The current climate warming is a challenge to biodiversity that could surpass the adaptation capacity of some species. Hence, understanding the means by which populations undergo an increase in their thermal tolerance is critical to assess how they could adapt to climate warming. Specifically, sea turtle populations could respond to increasing temperatures by (1) colonizing new nesting areas, (2) nesting during cooler times of the year, and/or (3) by increasing their thermal tolerance. Differences in thermal tolerance of clutches laid by different females would indicate that populations have the potential to adapt by natural selection. Here, we used exhaustive information on nest temperatures and hatching success of leatherback turtle (Dermochelys coriacea) clutches over 14 years to assess the occurrence of individual variability in thermal tolerance among females. We found an effect of temperature, year, and the interaction between female identity and nest temperature on hatching success, indicating that clutches laid by different females exhibited different levels of vulnerability to high temperatures. If thermal tolerance is a heritable trait, individuals with higher thermal tolerances could have greater chances of passing their genes to following generations, increasing their frequency in the population. However, the high rate of failure of clutches at temperatures above 32°C suggests that leatherback turtles are already experiencing extreme heat stress. A proper understanding of mechanisms of adaptation in populations to counteract changes in climate could greatly contribute to future conservation of endangered populations in a rapidly changing world. [ABSTRACT FROM AUTHOR]

Published
2024
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