Modeling contemporary range retraction in Great Basin pikas (Ochotona princeps) using data on microclimate and microhabitat

Wilkening, Jennifer L.; Ray, Chris; Beever, Erik A.; Brussard, Peter F.

doi:10.1016/j.quaint.2010.05.004

Cited by 87 publications

(121 citation statements)

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“…The models explored in this study (Table 1) represent hypotheses derived from previous literature in other portions of the species' range, suggesting temperature and precipitation (Beever et al 2003, 2010, Millar and Westfall 2010, Wilkening et al 2011 as strong predictors of pika occupancy and persistence. Our hypotheses were also influenced by the results of Millar and Westfall (2010), Hafner (1994), and Smith (1974), suggesting talus properties provide climate-buffering effects for pikas.…”

mentioning

confidence: 99%

On the generality of a climate-mediated shift in the distribution of the American pika (Ochotona princeps)

Erb

Ray

Guralnick

2011

Ecology

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Abstract. Alpine species are among those most threatened by climatic shifts due to their physiological and geographic constraints. The American pika (Ochotona princeps), a small mammal found in mountainous, rocky habitats throughout much of western North America, has experienced recent population extirpations in the Great Basin linked to climatic drivers. It remains unclear whether these patterns of climate-related loss extend to other portions of the species' range. We investigated the distribution of the American pika and the climatic processes shaping this distribution within the Southern Rocky Mountain region. Results from a survey of 69 sites historically occupied by pikas indicate that only four populations have been extirpated within this region over the past few decades. Despite relatively few extirpations, low annual precipitation is implicated as a limiting factor for pika persistence in the Southern Rockies. Extirpations occurred only at sites that were consistently dry over the last century. While there was no climate change signal in our results, these data provide valuable insight into the potential future effects of climate change on O. princeps throughout its range.

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confidence: 99%

On the generality of a climate-mediated shift in the distribution of the American pika (Ochotona princeps)

Erb

Ray

Guralnick

2011

Ecology

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132

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“…in addition, research is needed on the climate determinants of pika distribution in Alberta. Beever et al (2011) and Beever and smith (2013) provide a research priority list that includes multiscale sampling; better understanding of the relative effects of acute cold stress, acute heat stress, and chronic heat stress; closely examining pika use of micro-climates; determining how food selectivity indices may vary under different conditions; and detailed analysis of the additive or synergistic roles played by simultaneous climate-related stressors.…”

Section: Discussionmentioning

confidence: 99%

“…Concerns over the effects of climate change on pikas arise from several sources including observations of population disappearance (Beever et al 2003(Beever et al , 2011stewart et al 2015), elevational retreat (Beever et al 2003(Beever et al , 2011Grayson 2005;Millar and Westfall 2010), susceptibility to acute (MacArthur and Wang 1974;smith 1974a) and chronic heat stress (Beever et al 2010;Wilkening et al 2011;stewart et al 2015), increasing frequency of low precipitation and snowpack (erb et al 2011;Beever et al 2013;Jeffress et al 2013), limited dispersal ability (seppänen et al 2012;Beever and smith 2013), restriction to areas of permafrost (hafner 1993, 1994Millar and Westfall 2010;Wilkening et al 2015), dependence on higher elevations (Rodhouse et al 2010), and habitat change (CoseWiC 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Jeffress et al 2013). Beever et al (2010Beever et al ( , 2013, Wilkening et al (2011), andstewart et al (2015) found that chronic heat stress, determined by measuring mean summer temperature (Mst) during June, July, and August, is the single best indication of whether an American Pika population will persist. the UsFWs established an ambient Mst of 16.2°C as their primary criterion for determining whether pika populations in the United states are at risk (UsFWs 2010).…”

Section: Introductionmentioning

confidence: 99%

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Are American Pikas (<em>Ochotona princeps</em>) in the Canadian Rockies vulnerable to climate change?

Shank

2015

Can Field Nat

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The American Pika (Ochotona princeps) is vulnerable to climate change as a result of its dependence on cool, moist conditions. Most research on climatic determinants of American Pika distribution has been done in the United States where conditions are different from those in the higher-latitude pika ranges of the Canadian Rockies. I examined recent (1980–2009) and future (2050s and 2080s) average and maximum mean summer temperatures for 114 current American Pika locations in Alberta to assess whether future conditions are likely to place these animals at risk. At all current sites, mean summer temperatures (MSTs) in the 2050s are expected to be below that chosen by the United States Fish and Wildlife Service as a threshold for at-risk status of O. princeps. By the 2050s, most current American Pika locations have sufficient elevation within 5 km to allow individuals to migrate vertically to reach habitat with MST similar to that of their current location. Even in the 2080s, almost all current sites have sufficient elevation within 5 km to maintain extreme single-year and average MSTs lower than the highest values recorded at those sites in the recent past (13.9°C and 12.5°C respectively). However, by the 2080s under an extreme greenhouse gas emissions scenario, only 34% of current pika sites will allow for such migration. Although considerable uncertainty remains, particularly with respect to availability of habitat, these results suggest that American Pika populations in Alberta will likely be capable of persisting throughout this century, although their survival will depend increasingly on successful vertical migration.

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“…Unlike many small mammals in the alpine, pikas stay active year-round and do not hibernate, relying on their central food cache to overwinter (Dearing, 1997). Pikas received considerable attention following documented extirpations of some low elevation populations in the Great Basin (Beever et al, 2003;Wilkening et al, 2011). Global climate change has been implicated as a driver of population declines, although human disturbance could not be ruled out (Beever et al, 2003(Beever et al, , 2010Wilkening et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

American Pikas' (Ochotona princeps) Foraging Response to Hikers and Sensitivity to Heat in an Alpine Environment

Stafl

O’Connor

2015

Arctic, Antarctic, and Alpine Research

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Modeling contemporary range retraction in Great Basin pikas (Ochotona princeps) using data on microclimate and microhabitat

Cited by 87 publications

References 58 publications

On the generality of a climate-mediated shift in the distribution of the American pika (Ochotona princeps)

On the generality of a climate-mediated shift in the distribution of the American pika (Ochotona princeps)

Are American Pikas (<em>Ochotona princeps</em>) in the Canadian Rockies vulnerable to climate change?

American Pikas' (Ochotona princeps) Foraging Response to Hikers and Sensitivity to Heat in an Alpine Environment

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