Comparison of climate vulnerability among desert herpetofauna

Griffis‐Kyle, Kerry L.; Mougey, Krista; Vanlandeghem, Matt; Swain, Sharmistha; Drake, Joseph

doi:10.1016/j.biocon.2018.06.009

Cited by 35 publications

(43 citation statements)

References 60 publications

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“…Dehydration is likely to particularly impact species that rely on evaporative cooling to maintain optimal body temperature (Riddell et al, 2019), and/or small species (such as lizards) where high surface areas relative to volume increase the rate of rapid water loss (Albright et al, 2017). In desert reptiles and amphibians, vulnerability to climate change was influenced most strongly by a species' dependence on water (Griffis‐Kyle et al, 2018). Prolonged high temperatures did not result in any change in whole organism performance in lizards we transplanted from the high‐ to the low‐elevation site.…”

Section: Discussionmentioning

confidence: 99%

“…Desert ecosystems will be profoundly impacted by climate change (Dominguez et al, 2010), as evidenced by the greater magnitude of warming and drying over the last 50 years in deserts compared to other biomes (Wuebbles et al, 2017; Zhou et al, 2015). Desert‐adapted species, therefore, are among the organisms most vulnerable to climate change, particularly due to increasing thermal and hydric stress in an already extreme environment (Griffis‐Kyle et al, 2018). Changes in vegetation communities that will alter habitat structure and composition are also likely to negatively impact desert animal species (Garcia & Clusella‐Trullas, 2019; Kearney et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Changes in vegetation communities that will alter habitat structure and composition are also likely to negatively impact desert animal species (Garcia & Clusella‐Trullas, 2019; Kearney et al, 2009). Indeed, population declines have already been observed across desert taxa including plants, amphibians, birds, mammals, and reptiles (e.g., Bradley, 2010; Carlo et al, 2018; Griffis‐Kyle et al, 2018; Iknayan & Beissinger, 2018; Moses et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Cellular and whole‐organism effects of prolonged versus acute heat stress in a montane, desert lizard

et al. 2020

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Global climate change involves both prolonged periods of higher‐than‐normal temperatures and short but extreme heat waves. Both types of temperature increases are likely to be detrimental to ectotherms, and even if such temperature increases do not cause mortality directly, compensating for such temperature increases will likely entail costs to organisms. We tested the effects of prolonged periods of higher‐than‐average temperatures and short‐term, acute heat stress in wild populations of greater short‐horned lizards (Phrynosoma hernandesi), a temperate, montane lizard of the Colorado Plateau, UT, USA. We transplanted one group of lizards from a high‐ to a low‐elevation site, exposing them to a prolonged period of warmer temperatures. These lizards, exposed to prolonged periods of higher‐than‐average temperatures, experienced no change in sprint speed, endurance, or heat shock protein (HSP) production after treatment compared to baseline levels; however, they had lower water content after the transplant to a warmer climate compared to before the transplant. We exposed a second group of lizards to acute heat stress by exposing them to thermally stressful temperatures for 4 h. These lizards, exposed to a short period of acute heat stress, had no change in endurance, water content, or HSP production following acute heat stress; however, lizards exposed to acute heat stress had slower sprint speeds than control lizards. Our results demonstrate that both prolonged temperature increases and acute heat stress, each of which are predicted to occur with climate change, had different cellular and/or whole organismal‐level effects on lizards.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cellular and whole‐organism effects of prolonged versus acute heat stress in a montane, desert lizard

et al. 2020

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“…Furthermore, the conservation status and threat coverage varied by life history, as well. The high life history diversity of the region's amphibians likely portends a spectrum of vulnerability to climate and environmental change (Foden et al, 2013; Griffis‐Kyle et al, 2018) and bolsters calls to consider the unique contributions of arid regions to biodiversity (McNeely, 2003). Freshwater availability is expected, generally, to decrease in the region due to accelerating human and agricultural water use (Elias et al, 2016; Marshall et al, 2010), projected intensifying of droughts (Ault, Mankin, Cook, & Smerdon, 2016; Cayan et al, 2010; Cook, Ault, & Smerdon, 2015), and other threats.…”

Section: Discussionmentioning

confidence: 99%

Threats to aquatic taxa in an arid landscape: Knowledge gaps and areas of understanding for amphibians of the American Southwest

2020

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The American Southwest is a dryland region with variable, seasonal precipitation, and a wide range of freshwater habitats. Amphibians are among the diverse freshwater taxa that rely on aquatic habitats of the southwest, yet the state‐of‐the‐science regarding vulnerability of the region’s amphibians to threats recognized globally is unclear. To address this knowledge gap, we reviewed 81 publications and 341 species:threat relationships to assess coverage in the peer‐reviewed literature of potential threats to 35 amphibians native to the region. We classified threats into three major categories: climate change, biological, and land use. Using a new trait database for anurans (frogs and toads) of the United States, we evaluated these threats in the context of life history diversity of the region's anurans. We found high coverage for hydrological alteration and introduced species as well as changes to community dynamics, land use, and precipitation. Other potential threats—particularly those linked to climate change such as changes in seasonality and fire—had comparatively low coverage. Coverage varied widely among species, with the number of reported species:threat relationships ranging from 37 (the lowland leopard frog, Lithobates yavapaiensis) to no coverage for some species—including some of conservation concern (e.g., Sacramento Mountains salamander, Aneides hardii). Our findings support leveraging available information to test hypothesized linkages between amphibian life histories and risk and response to threats; using high coverage species and threats to inform simulations and experiments exploring species:threat relationships and efficacy of management strategies; and addressing knowledge gaps for species and threats with no proxies through on‐the‐ground natural history efforts. This article is categorized under: Water and Life > Stresses and Pressures on Ecosystems > Conservation, Management, and Awareness Science of Water > Water and Environmental Change

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“…Éste es considerado un efecto positivo ya que su distribución podría incrementarse hasta 240% para 2070 en el escenario más extremo. La ampliación mencionada coincide con trabajos previos realizados con herpetofauna de zonas desérticas, donde las lagartijas son consideradas como menos vulnerables en relación con los altos cambios en temperatura proyectados en comparación con serpientes y anfibios (Griffis-Kyle et al, 2018). Varios estudios apoyan la idea de que los ectotermos que habitan en ambientes térmicamente más variables muestran una mayor tolerancia fisiológica al calentamiento, lo que representa una menor vulnerabilidad al CCG en comparación con aquellos que se distribuyen en condiciones estables (Bonebrake y Deutsch, 2012;Deutsch et al, 2008;Huey et al, 2009;Tewksbury et al, 2008;Yuan et al, 2018).…”

Section: Discussionunclassified

Efectos del cambio climático en una especie de lagartija termófila de amplia distribución (Dipsosaurus dorsalis): un enfoque ecofisiológico

et al. 2019

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Comparison of climate vulnerability among desert herpetofauna

Cited by 35 publications

References 60 publications

Cellular and whole‐organism effects of prolonged versus acute heat stress in a montane, desert lizard

Cellular and whole‐organism effects of prolonged versus acute heat stress in a montane, desert lizard

Threats to aquatic taxa in an arid landscape: Knowledge gaps and areas of understanding for amphibians of the American Southwest

Efectos del cambio climático en una especie de lagartija termófila de amplia distribución (Dipsosaurus dorsalis): un enfoque ecofisiológico

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