Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Occurrence and density of mallard and green-winged teal in relation to prey size distribution and food abundance
Department of Applied Zoology, University of Helsinki.
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå. (Akvatisk biologi och kemi)
Finnish Game and Fisheries Research Institute, Evo Game Research Station.
Department of Animal Ecology, Swedish University of Agricultural Sciences, Umeå.
1995 (engelsk)Inngår i: Annales Zoologici Fennici, ISSN 0003-455X, E-ISSN 1797-2450, Vol. 32, nr 4, s. 385-390Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We studied patterns of prey size and abundance among 60 lakes that differed with respect to occupancy by mallards (Anas platyrhynchos) and teal (A. crecca crecca). Size distributions of prey in lakes with and without mallards did not differ in the way they deviated from the prey size distribution found in the average diet of the species; the same was true also for teal. However, in lakes with abundant food, average teal diet differed more from what was found in the environment than in lakes with less prey; in the mallard there were no differences in this respect. The densities of mallard and teal correlated positively rather than negatively with each other irrespective of food abundance, suggesting that interspecific competition, at least in ecological time, between the species may not be important in determing their abundance and distribution.

sted, utgiver, år, opplag, sider
1995. Vol. 32, nr 4, s. 385-390
Emneord [en]
INTERSPECIFIC COMPETITION, DABBLING DUCKS, GROUND FINCHES, GUILD, ENVIRONMENTS, COEXISTENCE, PREDATORS, DIVERSITY, SPARROWS, FINLAND
HSV kategori
Identifikatorer
URN: urn:nbn:se:hkr:diva-5397ISI: A1995TP62800003ISBN: 0003-455X (tryckt)OAI: oai:DiVA.org:hkr-5397DiVA, id: diva2:316251
Tilgjengelig fra: 2010-04-30 Laget: 2009-12-07 Sist oppdatert: 2017-12-12bibliografisk kontrollert

Open Access i DiVA

fulltekst(1332 kB)162 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1332 kBChecksum SHA-512
4b4dd7320ee2b8f683fd351d0e6578c1f4379c54195dad3f0050c3b5ae201029178836ea6139f29512adc501a939c88e2b8904e0bbdef2bf64bffbb5b238c23c
Type fulltextMimetype application/pdf

Andre lenker

Fulltext

Søk i DiVA

Av forfatter/redaktør
Elmberg, Johan
I samme tidsskrift
Annales Zoologici Fennici

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 162 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

isbn
urn-nbn

Altmetric

isbn
urn-nbn
Totalt: 82 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf