Now showing items 1-10 of 200
Resource - consumer models and the biomass conversion principle
(ELSEVIER SCI LTD, 2005-01)
In the search for a unified basis for constructing food-web models, the long-standing discrepancy between biomass conversion (BC) and individual survival (IS) modeling has been revitalized by Ginzburg (J. Anim. Ecol. 67 ...
The dimensionality of ecological networks
How many dimensions (trait-axes) are required to predict whether two species interact? This unanswered question originated with the idea of ecological niches, and yet bears relevance today for understanding what determines ...
Niche partitioning due to adaptive foraging reverses effects of nestedness and connectance on pollination network stability
Much research debates whether properties of ecological networks such as nestedness and connectance stabilise biological communities while ignoring key behavioural aspects of organisms within these networks. Here, we ...
Experimental assessment of interaction costs of inducible defenses in plankton
The expression of phenotypically plastic traits in prey organisms, triggered by changes in the abundance of their predators, is customarily assumed to involve costs in some fitness components such as fecundity, growth or ...
Determinants of Consumers´ Perceived Trust in IT-Ecosystems
(Universidad de Talca, 2010)
An integrated framework to improve the concept of resource specialisation
(Wiley-Blackwell Publishing Ltd.Oxford, 2014)
Resource specialisation, although a fundamental component of ecological theory, is employed in disparate ways. Most definitions derive from simple counts of resource species. We build on recent advances in ecophylogenetics ...
Space use by foragers consuming renewable resources
We study a simple model of a forager as a walk that modifies a relaxing substrate. Within it simplicity, this provides an insight on a number of relevant and non-intuitive facts. Even without memory of the good places to ...
The geographic scaling of biotic interactions
A central tenet of ecology and biogeography is that the broad outlines of species ranges are determined by climate, whereas the effects of biotic interactions are manifested at local scales. While the first proposition is ...