Variation in thermal tolerance of North American ants

Verble-Pearson, Robin; Gifford, Matthew E.; Yanoviak, Stephen P.

doi:10.1016/j.jtherbio.2014.12.006

Cited by 46 publications

(30 citation statements)

References 39 publications

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“…Such consideration is important given that a wide range of studies are now routinely investigating critical thermal limits (e.g. Baudier et al ., 2015; Kaspari et al ., 2015; Verble-Pearson et al ., 2015; García-Robledo et al ., 2016). A contrary view is that both temperature and time should be investigated fully owing to the significance of a third parameter, the sensitivity to temperature change (Rezende et al ., 2014).…”

Section: Discussionmentioning

confidence: 99%

Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance

et al. 2016

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“…2012b; Warren & Chick ; Kaspari et al . ; Verble‐Pearson, Yanoviak & Gifford ; Diamond et al . ) due to their ubiquity and the important roles they play in many ecosystems (Folgarait ).…”

Section: Introductionmentioning

confidence: 99%

“…This allows a direct comparison of the relationship between thermal traits of adults and those of earlier developmental stages. Ants, in particular, have served as models to study the impacts of temperature on animal populations (Jenkins et al 2011;Diamond et al 2012b;Warren & Chick 2013;Kaspari et al 2015;Verble-Pearson, Yanoviak & Gifford 2014;Diamond et al 2016) due to their ubiquity and the important roles they play in many ecosystems (Folgarait 1998). Yet, most studies on ant thermal performance have focused exclusively on thermal limits of mature foragers-worker ants that leave the nest to find food (Cerd a, Retana & Cros 1998;Diamond et al 2012b;Stuble et al 2013a;Kaspari et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Beyond thermal limits: comprehensive metrics of performance identify key axes of thermal adaptation in ants

et al. 2017

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Summary How species respond to temperature change depends in large part on their physiology. Physiological traits, such as critical thermal limits (CTmax and CTmin), provide estimates of thermal performance but may not capture the full impacts of temperature on fitness. Rather, thermal performance likely depends on a combination of traits—including thermal limits—that vary among species. Here, we examine how thermal limits correlate with the main components that influence fitness in ants. First, we compare how temperature affected colony survival and growth in two ant species that differ in their responses to warming in the field—Aphaenogaster rudis (heat‐intolerant) and Temnothorax curvispinosus (heat‐tolerant). We then extended our study to compare CTmax, thermal requirements of brood and yearly activity season among a broader set of ant species. While thermal limits were higher for workers of T. curvispinosus than A. rudis, T. curvispinosus colonies also required higher temperatures for survival and colony growth. This pattern generalized across 17 ant species, such that species whose foragers had a high CTmax also required higher temperatures for brood development. Finally, species whose foragers had a high CTmax had relatively short activity seasons compared with less heat‐tolerant species. The relationships between CTmax, thermal requirements of brood and seasonal activity suggest two main strategies for growth and development in changing thermal environments: one where ants forage at higher temperatures over a short activity season and another where ants forage at lower temperatures for an extended activity season. Where species fall on this spectrum may influence a broad range of life‐history characteristics and aid in explaining the current distributions of ants as well as their responses to future climate change. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12816/suppinfo is available for this article.

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“…Each vial contained two individuals of a given size, and a single water bath trial contained no more than 10 vials (or 20 individuals). We progressively raised the temperature of the hot-water bath (18C/min) from 288C past the CTmax of all individuals (as per Verble-Pearson et al, 2015) and observed ant behaviors from a fixed position above the water. CTmax was defined as the point at which ants lost coordination and the ability to right themselves (loss of righting response; Huey et al, 1992) or a state of partial paralysis (Cerda et al, 1998), whichever occurred first.…”

mentioning

confidence: 99%

Critical thermal maxima and body size positively correlate in red imported fire ants,Solenopsis invicta

Wendt

Verble-Pearson

2016

The Southwestern Naturalist

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Variation in thermal tolerance of North American ants

Cited by 46 publications

References 39 publications

Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance

Interactions between rates of temperature change and acclimation affect latitudinal patterns of warming tolerance

Beyond thermal limits: comprehensive metrics of performance identify key axes of thermal adaptation in ants

Critical thermal maxima and body size positively correlate in red imported fire ants,Solenopsis invicta

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