Evidence of an indirect dispersal pathway for Spotted Knapweed, Centaurea maculosa, seeds, via Deer Mice, Peromyscus maniculatus, and Great Horned Owls, Bubo virginianus

被引：0

作者：

Pearson, DE ^{[1
]}

Ortega, YK ^{[1
]}

机构：

[1] USDA, Forest Serv, Forestry Sci Lab, Rocky Mtn Res Stn, Missoula, MT USA

来源：

CANADIAN FIELD-NATURALIST | 2001年 / 115卷 / 02期

关键词：

Centaurea maculosa; Spotted Knapweed; Peromyscus maniculatus; Deer Mouse; Great Horned Owl; Bubo virginianus; exotic plants; seed dispersal;

D O I：

暂无

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Spotted Kriapweed (Centaurea maculosa) seeds were found in the pellets of Great Horned Owls (Bubo virginianus). That apparently resulted from owls preying upon Deer Mice (Peromyscus maniculatus) which had incidentally consumed knapweed seeds while foraging for the larvae of biological control agents within knapweed seedheads. Successful germination of 1% of the seeds shows that knapweed seeds recovered from owls pellets can be liable after being ingested by both species and suggest that Great Horned Owls can act as indirect dispersers of Spotted Knapweed seeds.

引用

页码：354 / 354

页数：1