Transferability of biotic interactions: Temporal consistency of arctic plant-rodent relationships is poor.

ABSTRACT: Variability in biotic interaction strength is an integral part of food web functioning. However, the consequences of the spatial and temporal variability of biotic interactions are poorly known, in particular for predicting species abundance and distribution. The amplitude of rodent population cycles (i.e., peak-phase abundances) has been hypothesized to be determined by vegetation properties in tundra ecosystems. We assessed the spatial and temporal predictability of food and shelter plants effects on peak-phase small rodent abundance during two consecutive rodent population peaks. Rodent abundance was related to both food and shelter biomass during the first peak, and spatial transferability was mostly good. Yet, the temporal transferability of our models to the next population peak was

SUBMITTER: Soininen EM 

PROVIDER: S-EPMC6202721 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature