Inny tytuł:

Acta Ornithologica, vol. 39, no. 2 ; Zachowanie agresywne gęsi grubonosych oraz ich mieszańców ; Interactions in swan geese and hybrids

Współtwórca:

Museum and Institute of Zoology, Polish Academy of Sciences

Wydawca:

Museum & Institute of Zoology

Miejsce wydania:

Warszawa

Opis:

Bibliogr. p. 152-153 ; P. [147]-153 ; 27 cm ; Abstract. pol.

Typ obiektu:

Journal/Article

Abstrakt:

Evidence for direct interspecific competition in wildfowl and between hybrids and their parent speciesis scarce. This study examined threat displays and agonistic encounters (n = 324) in a goose flock of 140 SwanGeese and 13 hybrids with Greylag Goose living in Heidelberg, SW Germany. In general, agonistic behaviourmade up less than 1% of the time budget throughout the year as measured by focal animal sampling. Mostencounters (84%) were won by the initiator, both in Swan Geese and in hybrids. No difference was found betweenSwan Geese and hybrids in the outcome of an encounter, suggesting equal competitive quality. There were differenceswith respect to threat postures with hybrids performing diagonal neck threats more often and intentionalmovements less often. This seems to be related to their hybrid origin, since Greylag Geese most often showdiagonal neck and forward threat displays. There was no direct evidence for hybrid superiority or inferiority

Czasopismo/Seria/cykl:

Acta Ornithologica

Tom:

39

Zeszyt:

2

Strona pocz.:

147

Strona końc.:

154

Szczegółowy typ zasobu:

Journal

Format:

text/xml

Identyfikator zasobu:

oai:rcin.org.pl:55521

Źródło:

MiIZ PAN, call no. patrz sygn. czas. P.257-39-2 ; MiIZ PAN, call no. patrz sygn. czas. P.4568-39-2 ; kliknij tutaj, żeby przejść

Język:

eng

Prawa:

Rights Reserved - Free Access

Zasady wykorzystania:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitalizacja:

Museum and Institute of Zoology of the Polish Academy of Sciences

Lokalizacja oryginału:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Dostęp:

Open