Costs and benefits of nest cover for ptarmigan: changes within and between years
Article Abstract:
Within- and between-year variation in the nest sites of ptarmigan, Lagopus leucurus, was investigated in 331 nests to identify the determinants of nest selection. Sites with less cover are often used by small birds and those in top fitness conditions while larger birds tend to choose nesting sites at higher elevations. Breeding failure in hens makes it more likely for them to select a different cover but not necessarily more cover in the next breeding season. Within year variation in nest site selection suggests that microclimate plays a more significant role in nest selection than predation.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Male vigilance in white-tailed ptarmigan, Lagopus leucurus: mate guarding or predator detection?
Article Abstract:
Two hypotheses have been developed to explain mate guarding behaviour in white-tailed ptarmigan, Lagopus leucurus. The protection of paternity hypothesis suggests that male vigilance increases paternity by reducing cuckoldry during reproduction, while the predator detection hypothesis suggests that male vigilance reduces predation risk to increase female foraging efficiency before incubation. However, it was observed that male vigilance was its highest when predation was high, rather than when female fertility was high.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Context and consequences of comb displays by male rock ptarmigan
Article Abstract:
A study exploring the usage of combs in the sexual behavior of male rock ptarmigans wasconducted. Results indicate that combs are a successful and honest determinant of the viability of a male. Males whose combs are in good health are more successful in mating behavior. Combs are always raised when males are courting.Combs are also used to provide information on the male ptarmigan whether for female or male interaction which usually includes dominance conflict.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Help lies around the corner for Internet's frustrated users
- Abstracts: Coyotes as sentinels for monitoring bovine tuberculosis prevalence in white-tailed deer. Fence-line contact between wild and farmed cervids in Colorado: potential for disease transmission
- Abstracts: Atomic gas in flatland. Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
- Abstracts: Response of fall-staging brant and Canada geese to aircraft overflights in southwestern Alaska
- Abstracts: The timing of song and distance call learning in zebra finches. Song tutor choice by zebra finches in aviaries