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A quantitative synthesis of and predictive framework for studying winter warming effects in reptiles

Moss, Jeanette B. and MacLeod, Kirsty J. LU (2022) In Oecologia 200(1-2). p.259-271
Abstract

Increases in temperature related to global warming have important implications for organismal fitness. For ectotherms inhabiting temperate regions, ‘winter warming’ is likely to be a key source of the thermal variation experienced in future years. Studies focusing on the active season predict largely positive responses to warming in the reptiles; however, overlooking potentially deleterious consequences of warming during the inactive season could lead to biased assessments of climate change vulnerability. Here, we review the overwinter ecology of reptiles, and test specific predictions about the effects of warming winters, by performing a meta-analysis of all studies testing winter warming effects on reptile traits to date. We collated... (More)

Increases in temperature related to global warming have important implications for organismal fitness. For ectotherms inhabiting temperate regions, ‘winter warming’ is likely to be a key source of the thermal variation experienced in future years. Studies focusing on the active season predict largely positive responses to warming in the reptiles; however, overlooking potentially deleterious consequences of warming during the inactive season could lead to biased assessments of climate change vulnerability. Here, we review the overwinter ecology of reptiles, and test specific predictions about the effects of warming winters, by performing a meta-analysis of all studies testing winter warming effects on reptile traits to date. We collated information from observational studies measuring responses to natural variation in temperature in more than one winter season, and experimental studies which manipulated ambient temperature during the winter season. Available evidence supports that most reptiles will advance phenologies with rising winter temperatures, which could positively affect fitness by prolonging the active season although effects of these shifts are poorly understood. Conversely, evidence for shifts in survivorship and body condition in response to warming winters was equivocal, with disruptions to biological rhythms potentially leading to unforeseen fitness ramifications. Our results suggest that the effects of warming winters on reptile species are likely to be important but highlight the need for more data and greater integration of experimental and observational approaches. To improve future understanding, we recap major knowledge gaps in the published literature of winter warming effects in reptiles and outline a framework for future research.

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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Brumation, Climate warming, Meta-analysis, Reptile, Winter ecology
in
Oecologia
volume
200
issue
1-2
pages
13 pages
publisher
Springer
external identifiers
  • pmid:36100724
  • scopus:85138081177
ISSN
0029-8549
DOI
10.1007/s00442-022-05251-3
language
English
LU publication?
yes
id
4cec93a4-6316-4c3c-a19d-a65cbfd197e8
date added to LUP
2022-12-05 09:37:47
date last changed
2024-04-18 17:37:43
@article{4cec93a4-6316-4c3c-a19d-a65cbfd197e8,
  abstract     = {{<p>Increases in temperature related to global warming have important implications for organismal fitness. For ectotherms inhabiting temperate regions, ‘winter warming’ is likely to be a key source of the thermal variation experienced in future years. Studies focusing on the active season predict largely positive responses to warming in the reptiles; however, overlooking potentially deleterious consequences of warming during the inactive season could lead to biased assessments of climate change vulnerability. Here, we review the overwinter ecology of reptiles, and test specific predictions about the effects of warming winters, by performing a meta-analysis of all studies testing winter warming effects on reptile traits to date. We collated information from observational studies measuring responses to natural variation in temperature in more than one winter season, and experimental studies which manipulated ambient temperature during the winter season. Available evidence supports that most reptiles will advance phenologies with rising winter temperatures, which could positively affect fitness by prolonging the active season although effects of these shifts are poorly understood. Conversely, evidence for shifts in survivorship and body condition in response to warming winters was equivocal, with disruptions to biological rhythms potentially leading to unforeseen fitness ramifications. Our results suggest that the effects of warming winters on reptile species are likely to be important but highlight the need for more data and greater integration of experimental and observational approaches. To improve future understanding, we recap major knowledge gaps in the published literature of winter warming effects in reptiles and outline a framework for future research.</p>}},
  author       = {{Moss, Jeanette B. and MacLeod, Kirsty J.}},
  issn         = {{0029-8549}},
  keywords     = {{Brumation; Climate warming; Meta-analysis; Reptile; Winter ecology}},
  language     = {{eng}},
  number       = {{1-2}},
  pages        = {{259--271}},
  publisher    = {{Springer}},
  series       = {{Oecologia}},
  title        = {{A quantitative synthesis of and predictive framework for studying winter warming effects in reptiles}},
  url          = {{http://dx.doi.org/10.1007/s00442-022-05251-3}},
  doi          = {{10.1007/s00442-022-05251-3}},
  volume       = {{200}},
  year         = {{2022}},
}