Is the future female for turtles? Climate change and wetland configuration predict sex ratios of a freshwater species.

Tytuł:: Is the future female for turtles? Climate change and wetland configuration predict sex ratios of a freshwater species.
Autorzy:: Roberts HP; Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA.
Willey LL; Department of Environmental Studies, Antioch University New England, Keene, New Hampshire, USA.; American Turtle Observatory, New Salem, Massachusetts, USA.
Jones MT; Natural Heritage and Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough, Massachusetts, USA.
Akre TSB; Smithsonian Conservation Biology Institute, Front Royal, Virginia, USA.
King DI; U.S. Forest Service, Northern Research Station, Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA.
Kleopfer J; Virginia Department of Wildlife Resources, Charles City, Virginia, USA.
Brown DJ; U.S. Forest Service, Pacific Northwest Research Station, Amboy, Washington, USA.; School of Natural Resources, West Virginia University, Morgantown, West Virginia, USA.
Buchanan SW; Division of Fish and Wildlife, Rhode Island Department of Environmental Management, West Kingston, Rhode Island, USA.
Chandler HC; The Orianne Society, Tiger, Georgia, USA.; Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, USA.
deMaynadier P; Maine Department of Inland Fisheries and Wildlife, Augusta, Maine, USA.
Winters M; New Hampshire Fish and Game Department, Concord, New Hampshire, USA.
Erb L; The Mid-Atlantic Center for Herpetology and Conservation, Oley, Pennsylvania, USA.
Gipe KD; Pennsylvania Fish and Boat Commission, Bellefonte, Pennsylvania, USA.
Johnson G; Biology Department, State University of New York, Potsdam, New York, USA.
Lauer K; Department of Environmental Studies, Antioch University New England, Keene, New Hampshire, USA.; American Turtle Observatory, New Salem, Massachusetts, USA.
Liebgold EB; Department of Biological Sciences, Salisbury University, Salisbury, Maryland, USA.
Mays JD; Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, Gainesville, Florida, USA.
Meck JR; Natural Heritage and Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough, Massachusetts, USA.; Smithsonian Conservation Biology Institute, Front Royal, Virginia, USA.
Megyesy J; New Hampshire Fish and Game Department, Concord, New Hampshire, USA.
Mota JL; U.S. Forest Service, Pacific Northwest Research Station, Amboy, Washington, USA.
Nazdrowicz NH; Species Conservation and Research Program, Delaware Division of Fish & Wildlife, Delaware, USA.
Oxenrider KJ; West Virginia Division of Natural Resources, Romney, West Virginia, USA.
Parren M; American Turtle Observatory, New Salem, Massachusetts, USA.
Ransom TS; Environmental Studies Department, Salisbury University, Salisbury, Maryland, USA.
Rohrbaugh L; District of Columbia Department of Energy & Environment, Washington, District of Columbia, USA.
Smith S; Maryland Department of Natural Resources, Maryland, Wye Mills, USA.
Yorks D; Maine Department of Inland Fisheries and Wildlife, Augusta, Maine, USA.
Zarate B; New Jersey Division of Fish and Wildlife, Lebanon, New Jersey, USA.
Źródło:: Global change biology [Glob Chang Biol] 2023 May; Vol. 29 (10), pp. 2643-2654. Date of Electronic Publication: 2023 Feb 13.
Typ publikacji:: Journal Article
Język:: English
Imprint Name(s):: Publication: : Oxford : Blackwell Pub.
Original Publication: Oxford, UK : Blackwell Science, 1995-
MeSH Terms:: Climate Change*
Turtles*/physiology
Animals ; Female ; Male ; Sex Ratio ; Wetlands ; Fresh Water
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Grant Information:: NR193A750023C003 Natural Resources Conservation Service; 2017-00 Northeast's Regional Conservation Needs Program; F15AC00965 U.S. Fish and Wildlife Service; F18AP00182 U.S. Fish and Wildlife Service; WVA00820 USDA National Institute of Food and Agriculture
Contributed Indexing:: Keywords: adaptive capacity; agriculture; climate change; land use; landscape structure; temperature; turtle; wetland configuration
Entry Date(s):: Date Created: 20230201 Date Completed: 20230413 Latest Revision: 20230529
Update Code:: 20240105
DOI:: 10.1111/gcb.16625
PMID:: 36723260
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Climate change and land-use change are leading drivers of biodiversity decline, affecting demographic parameters that are important for population persistence. For example, scientists have speculated for decades that climate change may skew adult sex ratios in taxa that express temperature-dependent sex determination (TSD), but limited evidence exists that this phenomenon is occurring in natural settings. For species that are vulnerable to anthropogenic land-use practices, differential mortality among sexes may also skew sex ratios. We sampled the spotted turtle (Clemmys guttata), a freshwater species with TSD, across a large portion of its geographic range (Florida to Maine), to assess the environmental factors influencing adult sex ratios. We present evidence that suggests recent climate change has potentially skewed the adult sex ratio of spotted turtles, with samples following a pattern of increased proportions of females concomitant with warming trends, but only within the warmer areas sampled. At intermediate temperatures, there was no relationship with climate, while in the cooler areas we found the opposite pattern, with samples becoming more male biased with increasing temperatures. These patterns might be explained in part by variation in relative adaptive capacity via phenotypic plasticity in nest site selection. Our findings also suggest that spotted turtles have a context-dependent and multi-scale relationship with land use. We observed a negative relationship between male proportion and the amount of crop cover (within 300 m) when wetlands were less spatially aggregated. However, when wetlands were aggregated, sex ratios remained consistent. This pattern may reflect sex-specific patterns in movement that render males more vulnerable to mortality from agricultural machinery and other threats. Our findings highlight the complexity of species' responses to both climate change and land use, and emphasize the role that landscape structure can play in shaping wildlife population demographics.
(© 2023 John Wiley & Sons Ltd. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.)

Comment in: Glob Chang Biol. 2023 May;29(10):2641-2642. (PMID: 36788755)

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