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| Early ontogenetic diet in
Gray Wolves, Canis lupus, of coastal British
Columbia |
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| Author(s): Bryan
HM (Bryan, Heather M.), Darimont
CT (Darimont, Chris T.), Reimchen TE
(Reimchen, Thomas E.), Paquet
PC (Paquet, Paul C.) |
| Source: CANADIAN
FIELD-NATURALIST Volume:
120 Issue:
1 Pages:
61-66 Published: JAN-MAR
2006 |
| Times
Cited:
0 References: 45 |
| Abstract: Within
populations, different age classes often consume
dissimilar resources, and provisioning of
juveniles by adults is one mechanism by which
this can occur. Although the diet of Gray Wolves
(Canis lupus) has been studied extensively, the
diet of pups is largely unknown. We examined
faeces deposited by altricial pups and adult
providers during the first two months following
birth at two den sites over two years on the
central coast of British Columbia, Canada. Pups
and adult wolves consumed similar species, and
Black-tailed Deer (Odocoileus hemionus)
constituted most of the diet for both age
groups. Pup and adult diet, however, diverged.
Specifically, adult deer occurred significantly
less frequently in the diet of pups than in the
diet of adult wolves, which suggests that adults
selectively provisioned pups. We speculate that
this may relate to adaptive strategies of adult
wolves to provide their offspring with food of
optimal nutritional value or reduced parasitic
burden, and/or logistic factors associated with
provisioning such as prey transportability and
availability. |
| Document Type: Article
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| Language: English
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| Author Keywords: Gray
wolf; Canis lupus; Sitka Black-tailed Deer;
Odocoileus hemionus; provisioning; pups; diet;
British Columbia |
| KeyWords Plus: NICHE
OVERLAP; TRADE-OFFS; RED FOXES; FOOD; QUALITY;
DEER |
Addresses: Darimont, CT
(reprint author), Univ Victoria, Dept Biol, POB
3020,Stn CSC, Victoria, BC V8W 3N5
Canada
Univ Victoria, Dept Biol, Victoria, BC
V8W 3N5 Canada
Raincoast Conservat Soc, Bella
Bella, BC V0T 1B0 Canada
Univ Calgary, Fac
Environm Design, Calgary, AB T2N 1N4 Canada
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| E-mail Addresses: cdarimon@uvic.ca
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| Publisher: OTTAWA
FIELD-NATURALISTS CLUB, PO BOX 35069, WESTGATE
PO, OTTAWA, ONTARIO K1Z 1A2, CANADA |
| Subject Category:
Biodiversity Conservation; Ecology |
| IDS
Number: 190OD |
| ISSN: 0008-3550
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