izpis_h1_title_alt

The noble cats and the big bad scavengers : effects of dominant scavengers on solitary predators
Krofel, Miha (Avtor), Kos, Ivan (Avtor), Jerina, Klemen (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1007/s00265-012-1384-6 Novo okno

Izvleček
Scavenging is an important but poorly understood ecological process. Dominant scavengers can impose a selection pressure that alters the predator’s fitness, morphology, behavior, and ecology. Interactions between ursids, likely the most important dominant scavengers in the Holarctic region, and solitar felids, which are characterized by long feeding times, provide a good opportunity for studying the effects of kleptoparasitism by dominant scavengers. We analyzed the effects of scavenging by brown bears Ursus arctos on Eurasian lynx Lynx lynx and predator’s response to kleptoparasitism in a European temperate forest ecosystem. Bears found 32% of lynx prey remains and 15% of all biomass of large prey killed by lynx was lost to bears. In response, lynx increased their kill rate by 23% but were able to compensate for only 59% of the losses. The frequency of bear scavenging was strongly dependent on bear activity patterns and was highest during the lynx pregnancy and lactation period, when up to half of lynx kills were usurped by bears. We suggest that ursid scavenging, by promoting the hunting of smaller prey, may have played an important role in the evolution of the Lynx genus as well as other predators in the Holarctic. Our study indicates that prey loss to dominant scavengers is a widespread phenomenon among felids worldwide, including forest habitats. We highlight several implications of scavenging that could considerably improve our understanding of the ecology of vertebrate communities and the evolution of predators as well as benefit the future management and conservation of endangered predators.

Jezik:Angleški jezik
Ključne besede:competition, interspecific interactions, kleptoparasitism, lynx, temperate forest
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Leto izida:2012
Št. strani:str. 1297-1304
Številčenje:Vol. 66, no. 9
UDK:591
ISSN pri članku:0340-5443
DOI:10.1007/s00265-012-1384-6 Povezava se odpre v novem oknu
COBISS.SI-ID:2609231 Povezava se odpre v novem oknu
Število ogledov:478
Število prenosov:124
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
:
Objavi na: Bookmark and Share

Gradivo je del revije

Naslov:Behavioral ecology and sociobiology
Skrajšan naslov:Behav. ecol. sociobiol.
Založnik:Springer
COBISS.SI-ID:25064448 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:Lynx lynx, Ursus arctos

Podobna dela

Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:

Komentarji

Dodaj komentar

Za komentiranje se morate prijaviti.

Komentarji (0)
0 - 0 / 0
 
Ni komentarjev!

Nazaj