Kestrel-Prey Dynamics in a Mediterranean Region
Author Information
Author(s): Fargallo Juan A., Martínez-Padilla Jesús, Viñuela Javier, Blanco Guillermo, Torre Ignasi, Vergara Pablo, De Neve Liesbeth
Primary Institution: Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
Hypothesis
How do generalist predation and climatic factors affect the population dynamics of kestrels and their prey in a Mediterranean ecosystem?
Conclusion
The study reveals that only one prey species significantly influences the population dynamics of generalist predators like the Eurasian kestrel, highlighting the role of climatic factors.
Supporting Evidence
- The population density of kestrels increased significantly with the provision of nest boxes.
- Common voles were identified as the primary prey affecting kestrel population dynamics.
- Climatic factors such as rainfall and temperature were found to influence prey abundance.
Takeaway
This study shows that in a Mediterranean area, the number of kestrels is mostly affected by the availability of one type of prey, the common vole, and by weather conditions.
Methodology
The population density of Eurasian kestrels and their prey was monitored over 15 years, with data collected on prey abundance and climatic factors.
Potential Biases
Potential bias may arise from the reliance on nest-boxes for kestrel population estimates.
Limitations
The study is limited by the lack of data on the effects of other potential prey species and the absence of a clear model for kestrel growth rate.
Participant Demographics
The study focused on the Eurasian kestrel and its prey species in a specific Mediterranean region.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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