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pro vyhledávání: '"Gerygone igata"'
Akademický článek
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Publikováno v:
Conservation Biology
Over the past 1000 years New Zealand has lost 40–50% of its bird species, and over half of these extinctions are attributable to predation by introduced mammals. Populations of many extant forest bird species continue to be depredated by mammals, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0c3b1fb074c9699c81802c9231dc5d7
Publikováno v:
Emu - Austral Ornithology. 114:80-85
The songs of bird species can vary from place to place and such variation may reflect ecological heterogeneity within the habitat. However, there is little understanding of how this process occurs over time within the same population. Here, change in
Akademický článek
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Publikováno v:
Emu - Austral Ornithology. 113:187-191
Variation in the temporal patterns of nest availability through the breeding season or across the geographical range of a host is expected to be an important selection pressure shaping the breeding biology of avian brood parasites. The archipelago-wi
Publikováno v:
Ethology. 116:357-365
The most critical assumption of communication models regarding parent–offspring conflict is that food solicitation displays of genetic offspring are honest signals to elicit beneficial parental care. A critical requirement of honesty is the reliabl
Publikováno v:
Animal Behaviour. 79:401-409
Vocal communication between parents and offspring, including feeding solicitations by parents and begging calls of young, can increase the risk of predation by attracting predators. Parents can use a ‘switch-off’ signal (alarm call) to suppress p
Publikováno v:
Biological Journal of the Linnean Society. 98:208-216
Studies of avian brood parasite systems have typically investigated the mimicry of host eggs by specialist parasites. Yet, several examples of similarity between host and parasite chick appearance or begging calls suggest that the escalation of host
Autor:
B. J. Gill
Publikováno v:
Ibis. 125:40-55
For three seasons starting in 1976 I studied the breeding of Shining Cuckoos Chrysococcyx lucidus in forest near Kaikoura, New Zealand. There is no evidence that the cuckoo parasitizes any host on mainland New Zealand other than the Grey Warbler Gery
Autor:
B. J. Gill
Publikováno v:
Ibis. 124:123-147
Summary I studied the breeding of Grey Warblers Gerygone igata (Muscicapidae: Acanthizinae) in forest near Kaikoura, New Zealand, between 1976 and 1979. Only males sang and singing occurred all year. From late July to January pairs defended self-cont