The spatial and temporal exploitation of anthropogenic food sources by common ravens (Corvus corax) in the Alps.

ABSTRACT:

Background

Anthropogenic food sources (AFSs) are widespread in human-transformed landscapes and the current scale at which they occur drives ecological change at the individual, population, and community levels. AFSs are exploited extensively by common ravens, Corvus corax. Understanding how raven populations use AFSs can provide insight into their ecological responses to AFSs.

Methods

We equipped 81 ravens in the Austrian Alps with GPS-transmitters over a period of 2.75 years. Using these tracking data, we investigated how cohort differences (i.e., age, sex, and origin) and seasonal changes influence raven movement patterns (i.e., occurrence distribution and maximum daily displacement) and AFS-use (i.e., number of AFSs visited and probability of being present at any AFS) at

SUBMITTER: Jain V 

PROVIDER: S-EPMC9414151 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature