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Duarte J, Farfán MÁ. Ocellated lizard predation patterns on red-legged partridge nests in olive groves. JOURNAL OF VERTEBRATE BIOLOGY 2023. [DOI: 10.25225/jvb.22074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Gastrointestinal parasites in red-legged partridges (Alectoris rufa) hunted in Spain: a warning to game managers. Vet Res Commun 2022; 46:1051-1062. [PMID: 35796856 DOI: 10.1007/s11259-022-09968-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/26/2022] [Indexed: 10/17/2022]
Abstract
Red-legged partridge (Alectoris rufa) populations are currently declining in the Iberian Peninsula, mainly due to habitat degradation and hunting pressure. In addition, the release of farm-reared partridges may introduce pathogens, including parasites, to wild populations. The presence of digestive parasites in red-legged partridges hunted in fifteen Spanish provinces was studied. Fecal samples and gastrointestinal tracts were collected, analyzed, and the morphometric identification of parasites was carried out. Eimeria spp. oocysts, nematode, cestode and trematode eggs were observed in fecal samples. Adult nematodes (Ascaridia galli, Ascaridia compar, Heterakis gallinarum, Heterakis tenuicauda, Trichostrongylus tenuis, Subulura spp., Cyrnea spp. and Aonchotheca caudinflata), tapeworms (Raillietina tetragona, R. echinobothrida, R. micracantha, Rhabdometra nigropunctata, and Choanotaenia infundibulum), and trematodes (Brachylaima spp., Brachylecithum spp., Dicrocoelium spp.) were identified in the gastrointestinal tracts. Significant statistical differences were found among climatic regions in the prevalence and intensity of Eimeria spp. infection, median intensity and the prevalence of indirect life cycle helminths, with Southern areas always showing higher infection values. The study provides information of the health status of red-legged partridges in Spain, highlighting the risk associated with the release of farm-reared partridges for restocking purposes. This should be taken into account to improve management strategies for the long-term conservation of the species.
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Fernández-Vizcaíno E, Ortiz-Santaliestra ME, Fernández-Tizón M, Mateo R, Camarero PR, Mougeot F. Bird exposure to fungicides through the consumption of treated seeds: A study of wild red-legged partridges in central Spain. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118335. [PMID: 34637835 DOI: 10.1016/j.envpol.2021.118335] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/03/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Sown seeds are a key component of many farmland birds' diets due to natural food shortages in autumn and winter. Because these seeds are often treated with pesticides, their ingestion by birds can result in toxic effects. For risk assessment, data on treated seed toxicity should be combined with information about exposure risk for wild birds and the factors that modulate it. We characterized the exposure of red-legged partridges to pesticide-treated seeds through the analysis of digestive contents of birds shot by hunters (n = 194) in an agricultural region in central Spain. We measured the contribution of sown seeds to the partridges' diet and how it related to pesticide exposure. Moreover, we evaluated the influence of landscape composition on the intake of sown seeds and pesticides by partridges. During peak sowing time, seeds constituted half (50.7%) of the fresh biomass ingested by partridges, which consumed mostly winter cereal seeds (42.3% of biomass). Residues of seven fungicides and one insecticide (active ingredients) were detected in 33.0% of birds. The presence of pesticides in digestive contents was linked to the ingestion of cereal sown seeds. Moreover, dietary exposure of birds to pesticides was modulated by landscape characteristics, being lower in areas with heterogeneous landscapes, greater habitat mosaic and more natural vegetation. The estimated dietary intake of pesticides resulting from our field observations, in combination with experimental data on pesticide toxicity, raise concerns about the risks that pesticide-treated cereal seeds pose to granivorous bird populations. Our results highlight the importance of farming landscape composition and diversification, which should be considered as a priority in the agricultural policy to mitigate pesticide risks to farmland birds through the consumption of treated seeds.
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Affiliation(s)
- Elena Fernández-Vizcaíno
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM,13005, Ciudad Real. Spain.
| | | | - Mario Fernández-Tizón
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM,13005, Ciudad Real. Spain
| | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM,13005, Ciudad Real. Spain
| | - Pablo R Camarero
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM,13005, Ciudad Real. Spain
| | - François Mougeot
- Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM,13005, Ciudad Real. Spain
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Cabodevilla X, Estrada A, Mougeot F, Jimenez J, Arroyo B. Farmland composition and farming practices explain spatio-temporal variations in red-legged partridge density in central Spain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149406. [PMID: 34426345 DOI: 10.1016/j.scitotenv.2021.149406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 07/26/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Many farmland bird populations are declining, and their negative trends are often associated with changes in land-use or farming practices, including the use of agrochemicals. The red-legged partridge (RLP) is a Mediterranean farmland game species of high socio-economic importance whose populations are thought to have declined sharply since the mid-20th century associated with farmland changes. However, no large-scale studies have tested whether abundance or trends of RLP are related to farmland composition or management. We used hierarchical distance sampling models to estimate RLP abundance in 2010 in central Spain (Castilla-La Mancha), a main European population stronghold of this species. We studied associations between RLP density and land-uses (including variation in management: irrigated crops or organic farming). We also assessed regional abundance variation over seven years (2010-2017) and its relationship with changes in land-use. Our results show that RLP abundance increased with the availability of natural vegetation and traditional rain-fed vineyards, but decreased with increasing proportions of tree crops and irrigated vineyards; the latter association was less pronounced in areas sensitive to nitrate contamination in water, where the amount of fertilizers applied in farmland and use of certain farming practices is more strictly regulated. These results support the idea that increases in intensive vineyards are detrimental to the RLP. We also report a strong population decline of RLP in the region, with a 51% abundance reduction in seven years. This decline was steeper in areas where more natural vegetation had been lost and where ecological tree crops had increased. Overall, our results indicate that changes in land-use (type of crop, or the destruction of natural vegetation in farmland) and farming practices (e.g. use of irrigation in certain crops, use of nitrates) have important impacts on this farmland bird, affecting both spatial distribution and population dynamics.
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Affiliation(s)
- Xabier Cabodevilla
- Department of Zoology and Animal Cell Biology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Alava, Spain; Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain.
| | - Alba Estrada
- Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain; Biogeography, Diversity and Conservation Lab. Department of Animal Biology, Universidad de Málaga, Spain
| | - François Mougeot
- Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - José Jimenez
- Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Beatriz Arroyo
- Instituto de Investigación en Recursos Cinegéticos (IREC) (CSIC-UCLM-JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain
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Dolman PM, Scotland KM, Burnside RJ, Collar NJ. Sustainable hunting and the conservation of the threatened houbara bustards. J Nat Conserv 2021. [DOI: 10.1016/j.jnc.2021.126000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sage RB, Hoodless AN, Woodburn MIA, Draycott RAH, Madden JR, Sotherton NW. Summary review and synthesis: effects on habitats and wildlife of the release and management of pheasants and red-legged partridges on UK lowland shoots. WILDLIFE BIOLOGY 2020. [DOI: 10.2981/wlb.00766] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Rufus B. Sage
- R. B. Sage , A. N. Hoodless, M. I. A. Woodburn, R. A. H. Draycott, N. W. Sotherton, Game & Wildlife Conservation Trust, Fordingbridge, SP6 1EF, UK
| | - Andrew N. Hoodless
- R. B. Sage , A. N. Hoodless, M. I. A. Woodburn, R. A. H. Draycott, N. W. Sotherton, Game & Wildlife Conservation Trust, Fordingbridge, SP6 1EF, UK
| | - Maureen I. A. Woodburn
- R. B. Sage , A. N. Hoodless, M. I. A. Woodburn, R. A. H. Draycott, N. W. Sotherton, Game & Wildlife Conservation Trust, Fordingbridge, SP6 1EF, UK
| | - Roger A. H. Draycott
- R. B. Sage , A. N. Hoodless, M. I. A. Woodburn, R. A. H. Draycott, N. W. Sotherton, Game & Wildlife Conservation Trust, Fordingbridge, SP6 1EF, UK
| | - Joah R. Madden
- J. R. Madden, Center for Research in Animal Behaviour, Exeter Univ.,, Exeter, UK
| | - Nicolas W. Sotherton
- R. B. Sage , A. N. Hoodless, M. I. A. Woodburn, R. A. H. Draycott, N. W. Sotherton, Game & Wildlife Conservation Trust, Fordingbridge, SP6 1EF, UK
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Guzmán JL, Viñuela J, Carranza J, Porras JT, Arroyo B. Red-legged partridge Alectoris rufa productivity in relation to weather, land use, and releases of farm-reared birds. EUR J WILDLIFE RES 2020. [DOI: 10.1007/s10344-020-01394-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rinaud T, Harmange C, Pays O, Sarasa M, Saillard M, Bretagnolle V. Interspecific competition between two partridges in farmland landscapes. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Antunes I, Coimbra M, Ribeiro A, Ferreira J, Abade dos Santos F, Alves S, Bessa R, Quaresma M. Nutritional value of meat lipid fraction from red-legged partridge (Alectoris rufa) obtained from wild and farmed specimens. Poult Sci 2019; 98:1037-1046. [DOI: 10.3382/ps/pey367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/09/2018] [Indexed: 11/20/2022] Open
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Souchay G, Besnard A, Perrot C, Jakob C, Ponce F. Anthropic and natural factors drive variation of survival in the red-legged partridge in southern France. WILDLIFE BIOLOGY 2018. [DOI: 10.2981/wlb.00438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
| | - Aurélien Besnard
- A. Besnard, CNRS, PSL Research University, EPHE, UM, SupAgro, IRD, INRA, Montpellier, France
| | - Charlotte Perrot
- C. Perrot, ONCFS — National Hunting and Wildlife Agency, Research Department — UPFS, Juvignac, Franc
| | - Christiane Jakob
- C. Jakob and F. Ponce, ONCFS — National Hunting and Wildlife Agency, Research Department — UPFS, Tou
| | - Françoise Ponce
- C. Jakob and F. Ponce, ONCFS — National Hunting and Wildlife Agency, Research Department — UPFS, Tou
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Does targeted management work for red-legged partridges Alectoris rufa? Twelve years of the ‘Finca de Matallana’ demonstration project. EUR J WILDLIFE RES 2017. [DOI: 10.1007/s10344-017-1083-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Arroyo B, Caro J, Muñoz-Adalia EJ, Díaz-Fernández S, Delibes-Mateos M, Díaz-Fernández M, Viñuela J. Reconciling economic and ecological sustainability: can non-intensive hunting of red-legged partridges be economically profitable? EUR J WILDLIFE RES 2016. [DOI: 10.1007/s10344-016-1073-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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