Prey switching as a means of enhancing persistence in predators at the trailing southern edge

© 2013 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 20(2014), 4 vom: 18. Apr., Seite 1126-35
1. Verfasser: Peers, Michael J L (VerfasserIn)
Weitere Verfasser: Wehtje, Morgan, Thornton, Daniel H, Murray, Dennis L
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Canada lynx MaxEnt biotic variables climate change geographical mosaic predator-prey mismatch red squirrel snowshoe hare southern range
LEADER 01000naa a22002652 4500
001 NLM233803394
003 DE-627
005 20231224095906.0
007 cr uuu---uuuuu
008 231224s2014 xx |||||o 00| ||eng c
024 7 |a 10.1111/gcb.12469  |2 doi 
028 5 2 |a pubmed24n0779.xml 
035 |a (DE-627)NLM233803394 
035 |a (NLM)24353147 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Peers, Michael J L  |e verfasserin  |4 aut 
245 1 0 |a Prey switching as a means of enhancing persistence in predators at the trailing southern edge 
264 1 |c 2014 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 11.05.2015 
500 |a Date Revised 03.03.2014 
500 |a published: Print-Electronic 
500 |a Citation Status MEDLINE 
520 |a © 2013 John Wiley & Sons Ltd. 
520 |a Understanding the effects of climate change on species' persistence is a major research interest; however, most studies have focused on responses at the northern or expanding range edge. There is a pressing need to explain how species can persist at their southern range when changing biotic interactions will influence species occurrence. For predators, variation in distribution of primary prey owing to climate change will lead to mismatched distribution and local extinction, unless their diet is altered to more extensively include alternate prey. We assessed whether addition of prey information in climate projections restricted projected habitat of a specialist predator, Canada lynx (Lynx canadensis), and if switching from their primary prey (snowshoe hare; Lepus americanus) to an alternate prey (red squirrel; Tamiasciurus hudsonicus) mitigates range restriction along the southern range edge. Our models projected distributions of each species to 2050 and 2080 to then refine predictions for southern lynx on the basis of varying combinations of prey availability. We found that models that incorporated information on prey substantially reduced the total predicted southern range of lynx in both 2050 and 2080. However, models that emphasized red squirrel as the primary species had 7-24% lower southern range loss than the corresponding snowshoe hare model. These results illustrate that (i) persistence at the southern range may require species to exploit higher portions of alternate food; (ii) selection may act on marginal populations to accommodate phenotypic changes that will allow increased use of alternate resources; and (iii) climate projections based solely on abiotic data can underestimate the severity of future range restriction. In the case of Canada lynx, our results indicate that the southern range likely will be characterized by locally varying levels of mismatch with prey such that the extent of range recession or local adaptation may appear as a geographical mosaic 
650 4 |a Journal Article 
650 4 |a Canada lynx 
650 4 |a MaxEnt 
650 4 |a biotic variables 
650 4 |a climate change 
650 4 |a geographical mosaic 
650 4 |a predator-prey mismatch 
650 4 |a red squirrel 
650 4 |a snowshoe hare 
650 4 |a southern range 
700 1 |a Wehtje, Morgan  |e verfasserin  |4 aut 
700 1 |a Thornton, Daniel H  |e verfasserin  |4 aut 
700 1 |a Murray, Dennis L  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Global change biology  |d 1999  |g 20(2014), 4 vom: 18. Apr., Seite 1126-35  |w (DE-627)NLM098239996  |x 1365-2486  |7 nnns 
773 1 8 |g volume:20  |g year:2014  |g number:4  |g day:18  |g month:04  |g pages:1126-35 
856 4 0 |u http://dx.doi.org/10.1111/gcb.12469  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 20  |j 2014  |e 4  |b 18  |c 04  |h 1126-35