Feeding preferences and changes in the mass of Canada Geese grazing endophyte-infected tall fescue
Article Abstract:
Canada Geese, Branta canadensis, grazing on fescue infected with Acremonium coenophialum loses mass, while that grazing on control fescue gains mass. These adverse effects of grazing are reversed when it is on grain diet again. Grazing on the infected fescue reduces the rate of reproduction and ability to survive food deprivation. The post-ingestion feedback may make the geese prefer the control fescue plots over the fungus-infected ones. Besides short-stopping and lower survival rates, grazing on infected fescue may also lead to the decline in the southern geese.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Incubation behavior of long-tailed tits: why do males provision incubating females?
Article Abstract:
Long-tailed tits have a highly variable incubation period ranging from 14 to 21 days. Eggs are incubated by females, which are provided with some food during the period by males although they must also forage for themselves. A new study investigates whether female incubation behavior and the length of incubation are influenced by male provisioning of incubating females. The study finds no evidence that the length of incubation is influenced by variations in behavior of either males or females.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Development and characterization of microsatellite markers for genetic analysis of a Brazillian endangered tree species Caryocar brasiliense
- Abstracts: Is parental care a constraint on the habitat use of common eider females? The influence of habitat, prey abundance, sex, and breeding success on the ranging behavior of Prairie Falcons
- Abstracts: Wood thrush postfledging movements and habitat use in northern Virginia. Variation in Song Sparrow nest defense: individual consistency and relationship to nest success