caa a22 4500 605541892 CHVBK 20210128100918.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10071-015-0898-5 doi (NATIONALLICENCE)springer-10.1007/s10071-015-0898-5 Nest sanitation elicits egg discrimination in cuckoo hosts [Elektronische Daten] [Canchao Yang, Min Chen, Longwu Wang, Wei Liang, Anders Møller] Nest sanitation is a nearly universal behavior in birds, while egg discrimination is a more specific adaptation that has evolved to counter brood parasitism. These two behaviors are closely related with nest sanitation being the ancestral behavior, and it has been hypothesized to constitute a preadaptation for egg discrimination. However, previous studies found little evidence to support this hypothesis. Here, we conducted an empirical test of the association between nest sanitation and egg discrimination in the barn swallow (Hirundo rustica) by inserting a single non-mimetic model egg or a non-mimetic model egg plus half a peanut shell into host nests. Compared to the rejection rate of single model eggs, barn swallows significantly increased egg rejection frequency if a half peanut shell was simultaneously introduced. Our result for the first time shows the impact of nest sanitation on egg discrimination and demonstrates that nest sanitation can elicit egg discrimination in hosts of brood parasites. This study provided evidence for nest sanitation being a preadaptation to egg discrimination by facilitating egg rejection, thereby significantly advancing our understanding of avian cognition of foreign objects. Furthermore, we suggest that egg discrimination behavior in many accepters and intermediate rejecters may be lost or diluted. Such egg discrimination can be elicited and restored after nest sanitation, implying a sensitive and rapid phenotypic response to increased risk of parasitism. Our study offers a novel perspective for investigating the role of so-called intermediate rejecter individuals or species in the long-term coevolutionary cycle between brood parasites and their hosts. Springer-Verlag Berlin Heidelberg, 2015 Egg rejection nationallicence Evolutionary lag nationallicence Hirundo rustica nationallicence Intermediate rejecter nationallicence Nest cleaning nationallicence Yang Canchao Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut Chen Min Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut Wang Longwu College of Life Sciences, Wuhan University, Wuhan 430072, China aut Liang Wei Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut Møller Anders Laboratoire d'Ecologie, Systématique et Evolution, CNRS UMR 8079, Université Paris-Sud, Bâtiment 362, 91405, Orsay Cedex, France aut Animal Cognition Springer Berlin Heidelberg 18/6(2015-11-01), 1373-1377 1435-9448 18:6<1373 2015 18 10071 https://doi.org/10.1007/s10071-015-0898-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 brief-communication jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10071-015-0898-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Canchao Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut NATIONALLICENCE 700 1- Chen Min Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut NATIONALLICENCE 700 1- Wang Longwu College of Life Sciences, Wuhan University, Wuhan 430072, China aut NATIONALLICENCE 700 1- Liang Wei Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China aut NATIONALLICENCE 700 1- Møller Anders Laboratoire d'Ecologie, Systématique et Evolution, CNRS UMR 8079, Université Paris-Sud, Bâtiment 362, 91405, Orsay Cedex, France aut NATIONALLICENCE 773 0- Animal Cognition Springer Berlin Heidelberg 18/6(2015-11-01), 1373-1377 1435-9448 18:6<1373 2015 18 10071