Behaviour moderates climate warming vulnerability in high-rocky-shore snails: interactions of habitat use, energy consumption and environmental temperature

Marshall, David J.; Baharuddin, Nursalwa; McQuaid, Christopher D.

doi:10.1007/s00227-013-2245-1

Cited by 38 publications

(54 citation statements)

References 35 publications

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“…Alternatively, our observations could be explained by the conservation of thermal tolerance following contraction (in both directions) of the realised thermal niche associated with transition to a freshwater system. In particular, heat tolerance in C. nigricans could have evolved in an ancestral lineage inhabiting a 16 highly thermally-variable marginal marine habitat (see Marshall et al, 2013a; assuming the relatively cool, stable tropical freshwater forest streams under study have not been significantly hotter (Broccoli 2000;Greenwood and Wing, 1995), or that the snail has not historically been associated with thermally more variable adjacent terrestrial (aerial) habitats.…”

Section: Discussionmentioning

confidence: 99%

Gross mismatch between thermal tolerances and environmental temperatures in a tropical freshwater snail: Climate warming and evolutionary implications

Polgar

Khang

Chua

et al. 2015

Journal of Thermal Biology

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Section: Discussionmentioning

confidence: 99%

Gross mismatch between thermal tolerances and environmental temperatures in a tropical freshwater snail: Climate warming and evolutionary implications

Polgar

Khang

Chua

et al. 2015

Journal of Thermal Biology

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“…It must be acknowledged, however, that different temperatures do not necessarily imply different thermal stress levels. Other factors, such as species‐specific variability in physiological tolerance (e.g., Dong et al ., ), mobility (which may allow for behavioural thermoregulation, see Huey et al ., ; Chapperon & Seuront, ; Marshall et al ., ), or the ability to acclimate (e.g., Meng et al ., ) are also important as well. In that sense, elevated temperatures are only relevant if they lead to physiological stress (Helmuth et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Loss of thermal refugia near equatorial range limits

Lima

Gomes

Seabra

et al. 2015

Global Change Biology

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This study examines the importance of thermal refugia along the majority of the geographical range of a key intertidal species (Patella vulgata Linnaeus, 1758) on the Atlantic coast of Europe. We asked whether differences between sun-exposed and shaded microhabitats were responsible for differences in physiological stress and ecological performance and examined the availability of refugia near equatorial range limits. Thermal differences between sun-exposed and shaded microhabitats are consistently associated with differences in physiological performance, and the frequency of occurrence of high temperatures is most probably limiting the maximum population densities supported at any given place. Topographical complexity provides thermal refugia throughout most of the distribution range, although towards the equatorial edges the magnitude of the amelioration provided by shaded microhabitats is largely reduced. Importantly, the limiting effects of temperature, rather than being related to latitude, seem to be tightly associated with microsite variability, which therefore is likely to have profound effects on the way local populations (and consequently species) respond to climatic changes.

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“…From a physiological perspective, snails differ fundamentally from ectotherms such as insects, lizards, crustaceans and fishes, because of their limited ability to move in response to changing temperatures (Marshall et al. , ). Whereas a close correspondence between thermal tolerance range and the thermal breadth for locomotion is expected in highly active organisms (Angiletta ), snails are prone to desiccation during activity and opt instead to withdraw into their shell and remain inactive at high and potentially stressful ambient temperatures.…”

Section: Introductionmentioning

confidence: 99%

Thermal tolerance and climate warming sensitivity in tropical snails

Marshall

Rezende

Baharuddin

et al. 2015

Ecology and Evolution

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Tropical ectotherms are predicted to be especially vulnerable to climate change because their thermal tolerance limits generally lie close to current maximum air temperatures. This prediction derives primarily from studies on insects and lizards and remains untested for other taxa with contrasting ecologies. We studied the HCT (heat coma temperatures) and ULT (upper lethal temperatures) of 40 species of tropical eulittoral snails (Littorinidae and Neritidae) inhabiting exposed rocky shores and shaded mangrove forests in Oceania, Africa, Asia and North America. We also estimated extremes in animal body temperature at each site using a simple heat budget model and historical (20 years) air temperature and solar radiation data. Phylogenetic analyses suggest that HCT and ULT exhibit limited adaptive variation across habitats (mangroves vs. rocky shores) or geographic locations despite their contrasting thermal regimes. Instead, the elevated heat tolerance of these species (HCT = 44.5 ± 1.8°C and ULT = 52.1 ± 2.2°C) seems to reflect the extreme temperature variability of intertidal systems. Sensitivity to climate warming, which was quantified as the difference between HCT or ULT and maximum body temperature, differed greatly between snails from sunny (rocky shore; Thermal Safety Margin, TSM = −14.8 ± 3.3°C and −6.2 ± 4.4°C for HCT and ULT, respectively) and shaded (mangrove) habitats (TSM = 5.1 ± 3.6°C and 12.5 ± 3.6°C). Negative TSMs in rocky shore animals suggest that mortality is likely ameliorated during extreme climatic events by behavioral thermoregulation. Given the low variability in heat tolerance across species, habitat and geographic location account for most of the variation in TSM and may adequately predict the vulnerability to climate change. These findings caution against generalizations on the impact of global warming across ectothermic taxa and highlight how the consideration of nonmodel animals, ecological transitions, and behavioral responses may alter predictions of studies that ignore these biological details.

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Behaviour moderates climate warming vulnerability in high-rocky-shore snails: interactions of habitat use, energy consumption and environmental temperature

Cited by 38 publications

References 35 publications

Gross mismatch between thermal tolerances and environmental temperatures in a tropical freshwater snail: Climate warming and evolutionary implications

Gross mismatch between thermal tolerances and environmental temperatures in a tropical freshwater snail: Climate warming and evolutionary implications

Loss of thermal refugia near equatorial range limits

Thermal tolerance and climate warming sensitivity in tropical snails

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