Data from: Population dynamics of a northern-adapted mammal: disentangling the influence of predation and climate change ...
Community structure and interspecific interactions are particularly vulnerable to rapidly changing climatic regimes. Recent changes in both climate and vertebrate community assemblages have created a unique opportunity to examine the impacts of two dynamic forces on population regulation. We examine...
| Main Authors: | , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2014
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.f20v3 https://datadryad.org/stash/dataset/doi:10.5061/dryad.f20v3 |
| Summary: | Community structure and interspecific interactions are particularly vulnerable to rapidly changing climatic regimes. Recent changes in both climate and vertebrate community assemblages have created a unique opportunity to examine the impacts of two dynamic forces on population regulation. We examined the effects of warming winter conditions and the reestablishment of a previously extirpated predator, the fisher (Martes pennanti), on regulatory mechanisms in a northern-adapted mammal, the porcupine (Erethizon dorsatum), along their southern range boundary. Using a long-term (17-year) capture–recapture data set, we (1) quantified the impacts of climate change and increased fisher predation on the survival of adult porcupines at their regional southern terminus, (2) assessed recruitment (via both adult fecundity and juvenile survival) of porcupines, and (3) modeled the relative importance of predation and winter conditions on the demography and population growth rate (λ). Severe winters and abundant predators ... : Capture MatrixAnnual capture histories for porcupines at Sandhill Wildlife Area, WI from 1996 to 2013.Spring_fall_KM_datafileWeekly monitoring record radio-collared juvenile and adult porcupines at Sandhill Wildlife Area from 23 April through 15 October 2012. ... |
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