Ruminant diversification as an adaptation to the physicomechanical characteristics of forage. A reevaluation of an old debate and a new
Article Abstract:
The driving force behind the diversification of ruminants and the evolution of grazers (GR) is the difference in physicomechanical characteristics between the forage classes. The rumen pillar thickness and relative forestomach capacity are significantly correlated to the grass content of the natural diet.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Site selection under differential predation risks by drifting prey in streams
Article Abstract:
Drifting prey in streams develops a model for the prediction of site selection by drifting prey in streams. A framework for the simultaneous integration of the effects of food availability, benthic predation risk and drift predation risk on site selection of actively drifting prey is discussed.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Competitive asymmetry, foraging area size and coexistence of annuals
Article Abstract:
The effects of competitive asymmetry on population dynamics and coexistence of two annual species with different sized foraging areas are investigated. There are large short-term fluctuations due to the symmetric competition and large size of the foraging areas.
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: Agriculture and deforestation in the tropics: A critical theoretical and empirical review. Environmental and economic impacts of decision-making at an arable farm: An integrative modeling approach
- Abstracts: Dietary conservatism may facilitate the initial evolution of aposematism. Maternal effects and offspring performance: in search of the best method
- Abstracts: An approach for integrating economic impact analysis into the evalution of potential marine proteced area sites
- Abstracts: Ecological basis of sustainable harvesting: is the prevailing paradigm of compensatory mortality still valid? Breeding success of sympatric dabbling ducks in relation to population density and food resources
- Abstracts: Neonatal growth and survival of rodents in response to variation in maternal dietary nitrogen: Life history strategy vs dietary niche