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Titolo:
A tropical volcano, high predation pressure, and the breeding biology of arctic waterbirds: A circumpolar review of breeding failure in the summer of1992
Autore:
Ganter, B; Boyd, H;
Indirizzi:
Natl Environm Res Inst, Dept Coastal Zone Ecol, DK-8410 Ronde, Denmark Natl Environm Res Inst Ronde Denmark DK-8410 col, DK-8410 Ronde, Denmark Environm Canada, Canadian Wildlife Serv, Natl Wildlife Res Ctr, Ottawa, ONK1A 0H3, Canada Environm Canada Ottawa ON Canada K1A 0H3 s Ctr, Ottawa, ONK1A 0H3, Canada
Titolo Testata:
ARCTIC
fascicolo: 3, volume: 53, anno: 2000,
pagine: 289 - 305
SICI:
0004-0843(200009)53:3<289:ATVHPP>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRANTA-BERNICLA-BERNICLA; SNOW GEESE; WADERS CHARADRII; NESTING SUCCESS; ALOPEX-LAGOPUS; LAYING DATE; CLUTCH SIZE; EGG SIZE; POPULATION; TAIMYR;
Keywords:
Arctic-breeding birds; breeding failure; global climate signal; predation; spring temperatures; volcanic eruption; waders; waterfowl;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
86
Recensione:
Indirizzi per estratti:
Indirizzo: Ganter, B Natl Environm Res Inst, Dept Coastal Zone Ecol, Grenaavej 12, DK-8410 Ronde, Denmark Natl Environm Res Inst Grenaavej 12 Ronde Denmark DK-8410 nmark
Citazione:
B. Ganter e H. Boyd, "A tropical volcano, high predation pressure, and the breeding biology of arctic waterbirds: A circumpolar review of breeding failure in the summer of1992", ARCTIC, 53(3), 2000, pp. 289-305

Abstract

Although periodic breeding failures of Arctic-nesting birds on a regional scale are common, a breeding failure encompassing almost the entire Arctic in the same year is exceptional. In the spring and summer of 1992, however,the aerosol cloud resulting from the 1991 eruption of Mount Pinatubo (Philippines) had reached the high northern latitudes and caused significant cooling in most of the Arctic, with widespread negative consequences for Arctic-breeding birds. At the same time, low abundance of small rodents and highabundance of predators presented additional problems for breeding birds inparts of the Palearctic. We compiled data on breeding biology of Arctic waterfowl and waders from more than 30 field studies to illuminate in what ways the circumpolar bad weather and predation influenced the breeding seasonof Arctic birds in 1992. Most projects reported a higher proportion of nonbreeders and a delayed onset of nest initiation compared to other years. Hatching and fledging success of the low number of late breeders was reduced. In addition, some projects reported lower clutch sizes and increased adult mortality. Detailed datafrom field studies are complemented by data on overall reproductive success of waterfowl and wader populations collected from staging and wintering grounds. In total, there was an almost complete reproductive failure for waders and waterfowl throughout the Arctic in 1992, suggesting a short-term effect on global waterbird populations. This is an example of climatic fluctuations influencing reproductive biology of a group of species on a circumpolar scale.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:14:26