Responses of parasitized and unparasitized Common Redstart (Phoenicurus phoenicurus) populations against artificial Cuckoo parasitism Export

@article{Rutila2006, abstract = {Brood parasitism selects for defensive mechanisms that enhance host fitness. Therefore, host Populations under different parasitism pressures may express different levels of defense against brood parasites. We tested the rejection responses Of Currently parasitized and unparasitized Common Red start (Phoenicurus phoenicurus) populations in Finland to artificial Common Cuckoo (Cuculus canorus) eggs. We predicted a higher level of defense in the parasitized population, but in fact the rejection rate was higher in the nonparasitized population. Nonmimetic artificial eggs were rejected more often than mimetic ones. Desertion probability was higher in the nonparasitized population and was independent of artificial egg type. Common Redstarts in the parasitized Population rejected the artificial eggs mostly through ejection, whereas desertion was a more frequent rejection method in the non parasitized Population. Our results Suggest that current selection pressures from brood parasites do not always explain the Current levels of defense.}, address = {Rutila, JUniv Joensuu, Dept Biol, POB 111, FIN-80101 Joensuu, FinlandUniv Joensuu, Dept Biol, FIN-80101 Joensuu, FinlandUniv Lapland, Arctic Ctr, FIN-96101 Rovaniemi, FinlandCSIC, Estac Expt Zonas Aridas, Dept Ecol Func \& Evolut, E-04001 Almeria, SpainFinnish Forest Res Inst, Rovaniemi Res Stn, FIN-96301 Rovaniemi, Finland}, author = {Rutila, J. and Jokimaki, J. and Aviles, J. M. and Jokimaki, Kaisanlahti M. L.}, citeulike-article-id = {1868208}, citeulike-linkout-0 = {#}, comment = {011UGTimes Cited:0Cited References Count:32}, journal = {Auk}, keywords = {among-population, bibtex-import, differences}, pages = {259--265}, posted-at = {2007-11-05 13:42:21}, priority = {2}, title = {Responses of parasitized and unparasitized Common Redstart (Phoenicurus phoenicurus) populations against artificial Cuckoo parasitism}, url = {<Go to ISI>://000235293300023}, volume = {123}, year = {2006} }

TY - JOUR ID - Rutila2006 L3 - citeulike-article-id:1868208 N2 - Brood parasitism selects for defensive mechanisms that enhance host fitness. Therefore, host Populations under different parasitism pressures may express different levels of defense against brood parasites. We tested the rejection responses Of Currently parasitized and unparasitized Common Red start (Phoenicurus phoenicurus) populations in Finland to artificial Common Cuckoo (Cuculus canorus) eggs. We predicted a higher level of defense in the parasitized population, but in fact the rejection rate was higher in the nonparasitized population. Nonmimetic artificial eggs were rejected more often than mimetic ones. Desertion probability was higher in the nonparasitized population and was independent of artificial egg type. Common Redstarts in the parasitized Population rejected the artificial eggs mostly through ejection, whereas desertion was a more frequent rejection method in the non parasitized Population. Our results Suggest that current selection pressures from brood parasites do not always explain the Current levels of defense. JF - Auk AD - Rutila, JUniv Joensuu, Dept Biol, POB 111, FIN-80101 Joensuu, FinlandUniv Joensuu, Dept Biol, FIN-80101 Joensuu, FinlandUniv Lapland, Arctic Ctr, FIN-96101 Rovaniemi, FinlandCSIC, Estac Expt Zonas Aridas, Dept Ecol Func \& Evolut, E-04001 Almeria, SpainFinnish Forest Res Inst, Rovaniemi Res Stn, FIN-96301 Rovaniemi, Finland EP - 265 TI - Responses of parasitized and unparasitized Common Redstart (Phoenicurus phoenicurus) populations against artificial Cuckoo parasitism VL - 123 SP - 259 KW - among-population KW - bibtex-import KW - differences N1 - 011UGTimes Cited:0Cited References Count:32 AU - Rutila, J AU - Jokimaki, J AU - Aviles, JM AU - Jokimaki, Kaisanlahti PY - 2006/// UR - # ER -