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Catry, Inês, Alcazar, Rita, Franco, Aldina M. A. 
ORCID: https://orcid.org/0000-0001-6055-7378 and Sutherland, William J.
(2009)
Identifying the effectiveness and constraints of conservation interventions: A case study of the endangered lesser kestrel.
Biological Conservation, 142 (11).
pp. 2782-2791.
Abstract
The recognition of the rapid and ongoing biodiversity loss has been leading to increasing conservation efforts. To maximise conservation success it is important to evaluate when interventions are likely to be effective. In Portugal, previous research identified that lack of suitable nest-sites was limiting the populations of the endangered lesser kestrel (Falco naumanni). Consequently, a massive provisioning of artificial nest-sites and the implementation of a medium term monitoring scheme was established. Our study showed that artificial nest-site provisioning is an effective measure in mitigating the lack of traditional sites. The lesser kestrel population increased from 155-158 pairs in 1996 to 527-552 in 2007, with 52% breeding in artificial nests. We investigate the factors affecting colony growth and found that colony growth was positively affected by the provisioning of artificial nests but negatively affected by predation rate and human disturbance. Between 2003 and 2007, mean colony growth was estimated at 6.46 ± 1.86 pairs for colonies where artificial nests were provided and -0.69 ± 0.5 pairs in colonies without nest-site provisioning. Moreover, predation rate was significantly lower in artificial nests than in natural ones and, although the number of competitor pairs in lesser kestrel colonies increased, the proportion of nests occupied by competitor species decreased. High risk of collapse and restoration of rural abandoned farmhouses may jeopardize the future of the lesser kestrel in Portugal. Nest-site provisioning and the establishment of a protection status for buildings holding colonies are likely the most effective means to guarantee the long-term survival of this species in the area.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding information: Fieldwork conducted between 2003 and 2006 was financed by Project LIFE2002/NAT/P8481: Re-establishment of the Lesser Kestrel Falco naumanni in Portugal. From 2006, IC was funded by a Portuguese doctoral grant from Fundação para a Ciência e Tecnologia (SFRH/BD/28023/2006). WJS was funded by the Aracadi Fund. |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA |
| UEA Research Groups: | Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation Faculty of Science > Research Groups > Environmental Biology Faculty of Science > Research Groups > Resources, Sustainability and Governance (former - to 2018) |
| Depositing User: | Rosie Cullington |
| Date Deposited: | 22 Feb 2011 15:42 |
| Last Modified: | 24 Sep 2024 09:21 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/24312 |
| DOI: | 10.1016/j.biocon.2009.07.011 |
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