In:
Canadian Journal of Zoology, Canadian Science Publishing, Vol. 60, No. 12 ( 1982-12-01), p. 3290-3292
Abstract:
This study examined the relationship between nest age and predation rate in painted turtles (Chrysemys picta). Eighty-one intact nests were found; 33 were eventually preyed upon during the study. New nests (less than 72 h old) do not appear to have a greater risk of predation than older nests. The majority (55%) of nests preyed upon were older than 72 h. Nests were divided into two groups: the first 41 of the season's nestings and the remaining 40 nestings. The proportion of nests preyed upon did not differ significantly between the two groups. Predators appeared to have made more frequent daily visits during the time the latter group of nests were being constructed. The average age of nests preyed upon in each group was 13.7 and 2.7 d, respectively; these averages are significantly different. Identifiable predators included skunks (Mephitis mephitis), raccoons (Procyon lotor), foxes (Vulpes fulva), and chipmunks (Tamias striatus) that accounted for 23, 4, 4, and 5, respectively, of the nests preyed upon.
Type of Medium:
Online Resource
ISSN:
0008-4301
,
1480-3283
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1982
detail.hit.zdb_id:
1490831-1
SSG:
12
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