Hidden signals of climate change in intertidal ecosystems: What (not) to expect when you are expecting

Helmuth, Brian; Yamane, Lauren; Lalwani, Saurabh; Matzelle, Allison; Tockstein, Alyson; Gao, Nan

doi:10.1016/j.jembe.2011.02.004

Cited by 75 publications

(52 citation statements)

References 73 publications

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“…Moreover, to capture thermoregulatory behaviour, or in environments such as intertidal zones where environmental conditions change extremely rapidly (e.g. Helmuth et al, 2011), these data might be required on an hourly time-step or shorter. This inflexibility in data requirements potentially hampers the application of mechanistic niche models in many instances because suitable data are often unavailable except at point locations.…”

Section: Data Requirements Of Mechanistic Niche Modelsmentioning

confidence: 99%

“…Although some studies have used high-resolution data from weather stations to examine patterns in physiological stress at single locations (e.g. Denny et al, 2006;Gilman et al, 2006;Helmuth et al, 2011), most mechanistic models of species distributions have been based on long-term average conditions (i.e. climate) rather than real weather, using a sine wave to convert data expressed as maximum/minimum to hourly data (Buckley, 2008;Buckley, 2010;Buckley et al, 2010;Kearney et al, 2008;Kearney and Porter, 2004;Kearney et al, 2009a;Kearney et al, 2009b;Kearney et al, 2010b;Natori and Porter, 2007;Porter et al, 2002;.…”

Section: Data Requirements Of Mechanistic Niche Modelsmentioning

confidence: 99%

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Biomechanics meets the ecological niche: the importance of temporal data resolution

Kearney

Matzelle

Helmuth

2012

Journal of Experimental Biology

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113

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SUMMARY The emerging field of mechanistic niche modelling aims to link the functional traits of organisms to their environments to predict survival, reproduction, distribution and abundance. This approach has great potential to increase our understanding of the impacts of environmental change on individuals, populations and communities by providing functional connections between physiological and ecological response to increasingly available spatial environmental data. By their nature, such mechanistic models are more data intensive in comparison with the more widely applied correlative approaches but can potentially provide more spatially and temporally explicit predictions, which are often needed by decision makers. A poorly explored issue in this context is the appropriate level of temporal resolution of input data required for these models, and specifically the error in predictions that can be incurred through the use of temporally averaged data. Here, we review how biomechanical principles from heat-transfer and metabolic theory are currently being used as foundations for mechanistic niche models and consider the consequences of different temporal resolutions of environmental data for modelling the niche of a behaviourally thermoregulating terrestrial lizard. We show that fine-scale temporal resolution (daily) data can be crucial for unbiased inference of climatic impacts on survival, growth and reproduction. This is especially so for species with little capacity for behavioural buffering, because of behavioural or habitat constraints, and for detecting temporal trends. However, coarser-resolution data (long-term monthly averages) can be appropriate for mechanistic studies of climatic constraints on distribution and abundance limits in thermoregulating species at broad spatial scales.

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Section: Data Requirements Of Mechanistic Niche Modelsmentioning

confidence: 99%

Section: Data Requirements Of Mechanistic Niche Modelsmentioning

confidence: 99%

Biomechanics meets the ecological niche: the importance of temporal data resolution

Kearney

Matzelle

Helmuth

2012

Journal of Experimental Biology

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113

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“…At the heart of this research is understanding how physical parameters, such as rising atmospheric temperature and extreme temperature events, alter physiological processes that translate into long term shifts in the demography of populations and assembly of communities (Denny & Helmuth 2009, Helmuth et al 2010. This is particularly true for rocky intertidal organisms, for which factors such as the tidal cycle, micro-topography, wind speed, air temperature and solar radiation cause body temperatures to fluctuate by > 20°C within a few hours and differ significantly between individuals only centimetres apart , Helmuth et al 2011). This thermal variability makes wave-swept rocky shores excellent systems to test and model the predicted biological impacts of in creased temperatures associated with climate change (Pitt et al 2010, Helmuth et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…This is particularly true for rocky intertidal organisms, for which factors such as the tidal cycle, micro-topography, wind speed, air temperature and solar radiation cause body temperatures to fluctuate by > 20°C within a few hours and differ significantly between individuals only centimetres apart , Helmuth et al 2011). This thermal variability makes wave-swept rocky shores excellent systems to test and model the predicted biological impacts of in creased temperatures associated with climate change (Pitt et al 2010, Helmuth et al 2011. In common with most species, it is the early life history stages of benthic invertebrates that are most vulnerable to changes in temperature (Gosselin & Qian 1997, Hunt & Scheibling 1997), yet few studies have measured the responses of newly settled larvae or recruits to temperature manipulations in the field (see Table 1).…”

Section: Introductionmentioning

confidence: 99%

Manipulating thermal stress on rocky shores to predict patterns of recruitment of marine invertebrates under a changing climate

Lathlean¹,

Minchinton²

2012

Mar. Ecol. Prog. Ser.

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For rocky intertidal organisms, temperature is often considered the most influential factor governing early survival and growth. Nevertheless, our review of the literature revealed that few studies have manipulated temperatures in the field to test for effects on these critical early life history processes. Here, we present the results from a novel manipulation of substratum temperature using settlement plates of different colour (black, grey and white) and infrared measurements of temperature to test hypotheses that temperature influences the early survival and growth of recent settlers of the intertidal barnacle Tesseropora rosea. Mean surface temperatures of black and grey plates were as great as 5.8°C (on average 2.2°C) and 4.8°C (on average 1.6°C) hotter than white plates across the sampling period, respectively. Cooler, white plates had significantly greater settlement and early growth than hotter, black plates, but differences in plate temperature did not significantly influence early survival or recruitment, though patterns were consistent with thermal variability. Comparisons between grey coloured natural rock and plates indicate that grey plates thermally mimic natural rock. Nevertheless, on average, more than twice as many larvae settled on plates than on natural rock, but early post-settlement survival on natural rock was double that on plates, suggesting that this artificial surface may not adequately capture the natural variability in early life history processes. Regardless, our simple and repeatable thermal manipulation represents a useful tool for experimentally investigating the effects of temperature on recruitment processes and simulating future temperature variability associated with climate change.

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“…Assessing the standing genetic diversity of genes involved in those pathways across populations from distinct thermal habitats [e.g. hotspots (Helmuth et al, 2011)] or pH gradients [e.g. upwelling centers (Feely et al, 2008)] could reveal the evolutionary potential that these crabs have to adapt to future change.…”

Section: Discussionmentioning

confidence: 99%

Temperature and acidification variability reduce physiological performance in the intertidal zone porcelain crabPetrolisthes cinctipes

Paganini

Miller

Stillman

2014

Journal of Experimental Biology

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We show here that increased variability of temperature and pH synergistically negatively affects the energetics of intertidal zone crabs. Under future climate scenarios, coastal ecosystems are projected to have increased extremes of low tide-associated thermal stress and ocean acidification-associated low pH, the individual or interactive effects of which have yet to be determined. To characterize energetic consequences of exposure to increased variability of pH and temperature, we exposed porcelain crabs, Petrolisthes cinctipes, to conditions that simulated current and future intertidal zone thermal and pH environments. During the daily low tide, specimens were exposed to no, moderate or extreme heating, and during the daily high tide experienced no, moderate or extreme acidification. Respiration rate and cardiac thermal limits were assessed following 2.5 weeks of acclimation. Thermal variation had a larger overall effect than pH variation, though there was an interactive effect between the two environmental drivers. Under the most extreme temperature and pH combination, respiration rate decreased while heat tolerance increased, indicating a smaller overall aerobic energy budget (i.e. a reduced O 2 consumption rate) of which a larger portion is devoted to basal maintenance (i.e. greater thermal tolerance indicating induction of the cellular stress response). These results suggest the potential for negative long-term ecological consequences for intertidal ectotherms exposed to increased extremes in pH and temperature due to reduced energy for behavior and reproduction.

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Hidden signals of climate change in intertidal ecosystems: What (not) to expect when you are expecting

Cited by 75 publications

References 73 publications

Biomechanics meets the ecological niche: the importance of temporal data resolution

Biomechanics meets the ecological niche: the importance of temporal data resolution

Manipulating thermal stress on rocky shores to predict patterns of recruitment of marine invertebrates under a changing climate

Temperature and acidification variability reduce physiological performance in the intertidal zone porcelain crabPetrolisthes cinctipes

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