2014
DOI: 10.1111/gcb.12641
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Predicting potential responses to future climate in an alpine ungulate: interspecific interactions exceed climate effects

Abstract: The altitudinal shifts of many montane populations are lagging behind climate change. Understanding habitual, daily behavioural rhythms, and their climatic and environmental influences, could shed light on the constraints on longterm upslope range-shifts. In addition, behavioural rhythms can be affected by interspecific interactions, which can ameliorate or exacerbate climate-driven effects on ecology. Here, we investigate the relative influences of ambient temperature and an interaction with domestic sheep (O… Show more

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Cited by 102 publications
(100 citation statements)
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References 75 publications
(90 reference statements)
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“…Based on the rule of thumb that air temperature decreases by 0.6˝C at every 100 m of higher elevation, the speed of CTI changes are equivalent to 23.3 and 3.3 m¨decade´1 in central and eastern regions, respectively. In many other systems the communities' range shifts are lagging behind isothermal shifts [4,14]. This is also true in our study where the isotherm is projected to shift uphill by 75.0 and 70.0 m¨decade´1 in the central and eastern region, consequently causing climatic debts of 51.7 and 66.7 m¨decade´1 in the central and eastern region, respectively.…”
Section: Discussionsupporting
confidence: 75%
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“…Based on the rule of thumb that air temperature decreases by 0.6˝C at every 100 m of higher elevation, the speed of CTI changes are equivalent to 23.3 and 3.3 m¨decade´1 in central and eastern regions, respectively. In many other systems the communities' range shifts are lagging behind isothermal shifts [4,14]. This is also true in our study where the isotherm is projected to shift uphill by 75.0 and 70.0 m¨decade´1 in the central and eastern region, consequently causing climatic debts of 51.7 and 66.7 m¨decade´1 in the central and eastern region, respectively.…”
Section: Discussionsupporting
confidence: 75%
“…These climatic debts are similar to those observed in butterflies (62.4 m¨decade´1) and birds (56.7 m¨decade´1) in the Alps [10], but smaller than those reported for birds (117.8 km¨decade´1 along the latitudinal gradient, equivalent to 117.8 m¨decade´1 along the elevational gradient) and butterflies (equivalent to 75.0 m¨decade´1) by Devictor et al [8]. Actual climatic debts, i.e., not those inferred from SDMs, could arise when the low dispersal ability of species does not allow species to migrate with their suitable climate space [46], a change in species interactions [14] or a combination of both. Furthermore a perceived climatic debt might simply result from phenotypic plasticity that allows a species to persist under a different climate without a need to migrate [47].…”
Section: Discussionmentioning
confidence: 84%
“…Indeed, chamois, like many ungulates, reduce their feeding activity during the hottest period of the day [62]. Furthermore, chamois spend less time foraging when it is hotter, independent of time of day [63]. Our results suggest that temperature affects the ability of juveniles to acquire resources themselves rather than via lagged effects on their mothers ( Figure 5).…”
Section: Discussionmentioning
confidence: 63%
“…This study further highlights the importance of considering management when examining the influence of environmental change on species, which is an increasingly important focus of ecological research (e.g. [63,78,79]). Future reductions in body size are likely to have far-reaching effects on the functioning and productivity of ecosystems [7,8]; decreases in juvenile body condition could result in reduced survival of juveniles and depressed population growth rates.…”
Section: Resultsmentioning
confidence: 69%
“…Interspecific competition can amplify negative effects of environmental changes on important aspects of foraging and social behaviour of native ungulates (Mason et al 2014). These in turn may decrease their reproductive performance and offspring survival, which are major determinants of population trends.…”
Section: Multi-ungulate Communities and Competitionmentioning
confidence: 99%