Selection for synchronous breeding in the European starling
Article Abstract:
The breeding synchrony of colonial birds in the European starling is studied. The early seasonal decline is caused by selection for synchronous fledging permitting the immediate formation of flocks after fledging and the late seasonal trends are by either population differences in female quality or deteriorating conditions for raising young.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
Geographical variation in offspring size effects across generations
Article Abstract:
Offspring size is thought to strongly affect offspring fitness and many studies have shown strong offspring size and fitness relationships in marine and terrestrial organisms. Offspring size effects can be highly variable among populations and organisms can adapt to local conditions without changing the size of their offspring.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
Limiting factors and population regulation
Article Abstract:
Dynamics of six Tribolium confusum populations growing in the laboratory on constant but different food supplies are presented. Since the level at which the populations stabilize is directly related to the quantity of food, it is suggested that these Tribolium populations were being limited by food.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Economic valuation for sustainable development in the Swedish coastal zone. Vanishing seagrass (Zostera marina, L.) in Swedish Coastal Waters
- Abstracts: Some roles for North American ecologists in land-use planning in the tropics. ESA report: ecological principles and guidelines for managing the use of land
- Abstracts: Sentenced without trial: reviling and revamping the Resource Dispersion Hypothesis. Estimating plant migration rates under habitat loss and fragmentation
- Abstracts: Flexible life history responses to flower and rosette bud removal in three perennial herbs. Recruitment rates exhibit high elasticity and high temporal variation in populations of a short-lived perennial herb
- Abstracts: Active selection for large guppies, Poecilia reticulata, by the pike cichlid, Crenicicha saxatilis. Timing an ontogenetic niche shift: reponses of emerging salmon alevins to chemical cues from predators and competitors