High thermal variation in maximum temperatures invert Brett's heat-invariant rule at fine spatial scales
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00636748" target="_blank" >RIV/68081766:_____/25:00636748 - isvavai.cz</a>
Result on the web
<a href="https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70124" target="_blank" >https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70124</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ecy.70124" target="_blank" >10.1002/ecy.70124</a>
Alternative languages
Result language
angličtina
Original language name
High thermal variation in maximum temperatures invert Brett's heat-invariant rule at fine spatial scales
Original language description
Discovering how species' thermal limits evolve and vary spatially is crucial for predicting their vulnerability to ongoing environmental warming. Current evidence indicates that heat tolerance is less spatially variable than cold tolerance among species, presenting a major concern for organismal vulnerability in a rapidly warming world. This asymmetry in thermal limits has been supported by large-scale geographic studies, across latitudinal and elevational gradients (known as Brett's heat-invariant rule). Yet, how critical limits vary across finer spatial scales (e.g., across microenvironments) is less understood. Here, we show that minimum temperatures are more variable than maximum temperatures at large geographic scales (across latitude/elevation) but are less variable at local scales (within sites), in turn guiding spatial asymmetries in thermal tolerances. Using thermal tolerance measurements from amphibians, insects, and reptiles, we confirm the invariance of heat tolerance at large spatial scales and also find more variable heat than cold tolerances at local scales (an inverted Brett's heat-invariant rule at fine spatial scales). Our results suggest that regional- or global-level studies will likely obscure fine-scale structuring in thermal habitats and corresponding patterns of local heat tolerance adaptation. We emphasize that inferences based on broadscale geographic patterns obscure fine-scale variation in thermal physiology. For instance, a genetic basis for fine-scale variation in thermal physiology may reshuffle spatial and phylogenetic patterns of vulnerability.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ecology
ISSN
0012-9658
e-ISSN
1939-9170
Volume of the periodical
106
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
e70124
UT code for WoS article
001518771400003
EID of the result in the Scopus database
2-s2.0-105007641504