How climate change might influence the starvation–predation risk trade-off response Export

@article{citeulike:5236848, abstract = {10.1098/rspb.2009.1000 Climate change within the UK will affect winter starvation risk because higher temperatures reduce energy budgets and are likely to increase the quality of the foraging environment. Mass regulation in birds is a consequence of the starvation–predation risk trade-off: decreasing starvation risk because of climate change should decrease mass, but this will be countered by the effects of predation risk, because high predation risk has a negative effect on mass when foraging conditions are poor and a positive effect on mass when foraging conditions are good. We tested whether mass regulation in great tits () across the UK was related to temporal changes in starvation risk (winter temperature 1995–2005) and spatial changes in predation risk (sparrowhawk abundance). As predicted, great tits carried less mass during later, warmer, winters, demonstrating that starvation risk overall has decreased. Also, the effects of predation risk interacted with the effects of temperature (as an index of foraging conditions), so that in colder winters higher sparrowhawk abundance led to lower mass, whereas in warmer, later, winters higher sparrowhawk abundance led to higher mass. Mass regulation in a small bird species may therefore provide an index of how environmental change is affecting the foraging environment.}, author = {Cresswell, W. and Clark, J. A. and Macleod, R.}, citeulike-article-id = {5236848}, citeulike-linkout-0 = {http://dx.doi.org/10.1098/rspb.2009.1000}, citeulike-linkout-1 = {http://rspb.royalsocietypublishing.org/content/rspb.2009.1000v1/.abstract}, citeulike-linkout-2 = {http://rspb.royalsocietypublishing.org/content/rspb.2009.1000v1/.full.pdf}, citeulike-linkout-3 = {http://view.ncbi.nlm.nih.gov/pubmed/19625317}, citeulike-linkout-4 = {http://www.hubmed.org/display.cgi?uids=19625317}, day = {7}, doi = {10.1098/rspb.2009.1000}, journal = {Proceedings of the Royal Society B: Biological Sciences}, keywords = {body-mass, climate-change, great-tit, predation-risk, trade-off}, month = {October}, number = {1672}, pages = {3553--3560}, posted-at = {2009-07-23 10:41:55}, priority = {2}, title = {How climate change might influence the starvation–predation risk trade-off response}, url = {http://dx.doi.org/10.1098/rspb.2009.1000}, volume = {276}, year = {2009} }

TY - JOUR ID - citeulike:5236848 L3 - citeulike-article-id:5236848 N2 - 10.1098/rspb.2009.1000 Climate change within the UK will affect winter starvation risk because higher temperatures reduce energy budgets and are likely to increase the quality of the foraging environment. Mass regulation in birds is a consequence of the starvation–predation risk trade-off: decreasing starvation risk because of climate change should decrease mass, but this will be countered by the effects of predation risk, because high predation risk has a negative effect on mass when foraging conditions are poor and a positive effect on mass when foraging conditions are good. We tested whether mass regulation in great tits () across the UK was related to temporal changes in starvation risk (winter temperature 1995–2005) and spatial changes in predation risk (sparrowhawk abundance). As predicted, great tits carried less mass during later, warmer, winters, demonstrating that starvation risk overall has decreased. Also, the effects of predation risk interacted with the effects of temperature (as an index of foraging conditions), so that in colder winters higher sparrowhawk abundance led to lower mass, whereas in warmer, later, winters higher sparrowhawk abundance led to higher mass. Mass regulation in a small bird species may therefore provide an index of how environmental change is affecting the foraging environment. IS - 1672 JF - Proceedings of the Royal Society B: Biological Sciences EP - 3560 TI - How climate change might influence the starvation–predation risk trade-off response VL - 276 SP - 3553 KW - body-mass KW - climate-change KW - great-tit KW - predation-risk KW - trade-off AU - Cresswell, W AU - Clark, JA AU - Macleod, R PY - 2009/10/07/ UR - http://dx.doi.org/10.1098/rspb.2009.1000 ER -