NEST SITES AND NEST WEBS FOR CAVITY-NESTING COMMUNITIES IN INTERIOR BRITISH COLUMBIA, CANADA: NEST CHARACTERISTICS AND NICHE PARTITIONING
Aspen was the critical nesting tree and Northern Flickers were the keystone excavators in this community of cavity nesters, and a nest web for community structure showed most cavity resource use flowed up the community through aspen trees and cavities excavated by Northern Flicker.
MICROCLIMATE OF TREE CAVITY NESTS: IS IT IMPORTANT FOR REPRODUCTIVE SUCCESS IN NORTHERN FLICKERS?
- K. Wiebe
- Environmental Science
- 1 April 2001
It is predicted that cold nests would be energetically expensive for adults and nestlings, and found that clutch size was positively correlated with mean cavity temperature, however, there did not appear to be any relationship among nest temperature and hatching or fledging success.
Selection of Nest Trees by Cavity‐nesting Birds in the Neotropical Atlantic Forest
- Kristina L. Cockle, K. Martin, K. Wiebe
- Environmental Science
- 1 March 2011
One of the five most important global biodiversity hotspots, the Neotropical Atlantic forest supports a diverse community of birds that nest in tree cavities. Cavity‐nesting birds may be particularly…
NEST-SITE REUSE PATTERNS FOR A CAVITY-NESTING BIRD COMMUNITY IN INTERIOR BRITISH COLUMBIA
Reuse of existing cavities might help mitigate the problem of nest-site limitation and with increasing amounts of managed landscapes, availability of suitable cavities for forest nesting vertebrates is decreasing.
The onset of incubation in birds: can females control hatching patterns?
- K. Wiebe, J. Wiehn, E. Korpimäki
- Biology, Environmental ScienceAnimal Behaviour
- 1 April 1998
Investigation of intraspecific variation in incubation behaviour of wild Eurasian kestrels in Finland found that patterns of hatching asynchrony could be predicted from patterns of incubation, consistent with the idea that females have much control over hatching patterns.
Facultative sex ratio manipulation in American kestrels
- K. Wiebe, G. Bortolotti
- BiologyBehavioral Ecology and Sociobiology
- 1 June 1992
The sex ratio of American kestrels between 1988 and 1990 was independent of the laying date; however, it was correlated with female body size, perhaps because small size is more detrimental for females than males.
Climate change, breeding date and nestling diet: how temperature differentially affects seasonal changes in pied flycatcher diet depending on habitat variation.
- C. Burger, E. Belskii, C. Both
- Environmental ScienceJournal of Animal Ecology
- 1 July 2012
It is suggested that pied flycatchers breeding in oak habitats have greater need to adjust timing of breeding to rising spring temperatures, because of the strong seasonality in their food.
Costs and benefits of nest cover for ptarmigan: changes within and between years
Overall, characteristics of nest sites showed strong seasonal patterns, suggesting that microclimate may be a more important selective pressure than predation.
AVAILABILITY OF CAVITIES FOR NESTING BIRDS IN THE ATLANTIC FOREST, ARGENTINA
- Kristina L. Cockle, K. Martin, K. Wiebe, Proyecto Selva de Pino, Valentín Virasoro
- Environmental Science
- 2008
We test the hypothesis that selective logging reduces nest site availability and nest density for cavity-nesting birds in the Atlantic forest by determining 1) whether suitable cavities are as…
Delayed timing as a strategy to avoid nest-site competition: testing a model using data from starlings and flickers
- K. Wiebe
- Environmental Science
- 1 February 2003
A mathematical model based on reproductive parameters for a population of flickers from central British Columbia, Canada suggested that costs of delaying reproduction would outweigh benefits of an early start except when the probability of nest usurpation is very high early in the season and declines rapidly through the summer.
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