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Titolo:
Sex roles, parental effort and offspring desertion in the monogamous Eurasian Curlew Numenius arquata
Autore:
Currie, D; Valkama, J; Berg, A; Boschert, M; Norrdahl, K; Hanninen, M; Korpimaki, E; Poyri, V; Hemminki, O;
Indirizzi:
Turku Univ, Dept Biol, Sect Ecol, FIN-20014 Turku, Finland Turku Univ Turku Finland FIN-20014 , Sect Ecol, FIN-20014 Turku, Finland SLU, Dept Conservat Biol, S-75007 Uppsala, Sweden SLU Uppsala Sweden S-75007 Dept Conservat Biol, S-75007 Uppsala, Sweden BIOPLAN, Inst Angw Biol & Planung GbR, D-77815 Buhl Baden, Germany BIOPLAN Buhl Baden Germany D-77815 nung GbR, D-77815 Buhl Baden, Germany
Titolo Testata:
IBIS
fascicolo: 4, volume: 143, anno: 2001,
pagine: 642 - 650
SICI:
0019-1019(200110)143:4<642:SRPEAO>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
FEMALE KENTISH PLOVERS; BROOD DESERTION; CHARADRIUS-ALEXANDRINUS; MATING SYSTEMS; SEMIPALMATED SANDPIPER; CALIDRIS-PUSILLA; EVOLUTION; BEHAVIOR; CARE; SHOREBIRDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
62
Recensione:
Indirizzi per estratti:
Indirizzo: Valkama, J Turku Univ, Dept Biol, Sect Ecol, FIN-20014 Turku, Finland Turku Univ Turku Finland FIN-20014 , FIN-20014 Turku, Finland
Citazione:
D. Currie et al., "Sex roles, parental effort and offspring desertion in the monogamous Eurasian Curlew Numenius arquata", IBIS, 143(4), 2001, pp. 642-650

Abstract

The reasons for female desertion of offspring and the evolution of predominantly male care among monogamous bird species are not clearly understood. We studied parental effort during the incubation and chick rearing periods in the Eurasian Curlew Numenius arquata in western Finland, and compared timing of brood desertion with other populations in Europe. Males and femalescontributed equally to incubation and showed no differences in the intensity of mobbing behaviour towards a potential nest predator (stuffed crow) shortly after hatching. However, females deserted their offspring approximately halfway through the brooding period (c. 16 d after hatching), while males remained with chicks until independence (c. 35 d). Females with late-laidclutches deserted their offspring sooner after hatching than those with clutches produced earlier in the season. Curlew females deserted younger chicks in northeast Europe, where laying dates were later, breeding seasons shorter and migration distances were longer, than in western and central Europe. We suggest that the most likely reasons for offspring desertion by females may be associated with increased female survivorship and maintenance of pairbond between years.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 07:53:38