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Kikuchi D, Simon MW. Social learning of innovations in dynamic predator-prey systems. Am Nat 2023; 201:895-907. [DOI: 10.1086/724491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Marques AT, Palma L, Lourenço R, Cangarato R, Leitão A, Mascarenhas M, Tavares JT, Tomé R, Moreira F, Beja P. Individual variability in space use near power lines by a long‐lived territorial raptor. Ecol Evol 2022; 12:e8811. [PMID: 35414898 PMCID: PMC8987490 DOI: 10.1002/ece3.8811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 11/29/2022] Open
Abstract
Evaluating species responses to anthropogenic infrastructures and other habitat changes is often used to assess environmental impacts and to guide conservation actions. However, such studies are generally carried out at the population level, disregarding inter‐individual variability. Here, we investigate population‐ and individual‐level responses toward power lines of a territorial raptor, the Bonelli's eagle Aquila fasciata. We used GPS‐PTT tracking data of 17 adult eagles to model space use as a function of distance to transmission and distribution lines, while accounting for other habitat features known to affect this species. At population level, eagles increased the intensity of space use in the proximity of power lines (up to 1,000 m), suggesting an attraction effect. At individual level, some eagles shared the general population attraction pattern, while others showed reduced intensity of space use in the proximity of power lines. These differential responses were unrelated to the sex of individuals, but were affected by the characteristics of the power grid, with a tendency for apparent attraction to be associated with individuals occupying home ranges with a denser network of transmission lines and transmission pylons. However, the study could not rule out the operation of other potentially influential factors, such as individual idiosyncrasies, the spatial distribution of prey availability, and the availability of natural perches and nesting sites. Overall, these results suggest that power lines may drive different behaviors and have differential impacts across individuals, with those attracted to the proximity of power lines potentially facing increased risk of mortality through electrocution and collision, and those avoiding power lines being potentially subject to exclusion effects. More generally, our results reinforce the need to understand individual variability when assessing and mitigating impacts of anthropogenic infrastructures.
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Affiliation(s)
- Ana Teresa Marques
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Universidade do Porto Vairão Portugal
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning CIBIO Vairão Portugal
| | - Luís Palma
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Universidade do Porto Vairão Portugal
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning CIBIO Vairão Portugal
| | - Rui Lourenço
- MED Instituto Mediterrâneo para a Agricultura Ambiente e Desenvolvimento, CHANGE Laboratório Associado LabOr – Laboratório de Ornitologia IIFA Universidade de Évora Évora Portugal
| | | | | | | | | | | | - Francisco Moreira
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Universidade do Porto Vairão Portugal
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning CIBIO Vairão Portugal
| | - Pedro Beja
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Universidade do Porto Vairão Portugal
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos InBIO Laboratório Associado Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning CIBIO Vairão Portugal
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Martín-Maldonado B, Montoro-Dasi L, Pérez-Gracia MT, Jordá J, Vega S, Marco-Jiménez F, Marin C. Wild Bonelli's eagles (Aquila fasciata) as carrier of antimicrobial resistant Salmonella and Campylobacter in Eastern Spain. Comp Immunol Microbiol Infect Dis 2019; 67:101372. [PMID: 31629291 DOI: 10.1016/j.cimid.2019.101372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 12/19/2022]
Abstract
Wild birds have repeatedly been found to be involved in the dissemination of enteric bacterial pathogens in the environment. The aim of this study was to determine the occurrence of Salmonella and Campylobacter as well as the antimicrobial resistance in wild Bonelli's eagles nestlings in Eastern Spain. In addition, we compared the efficiency of two sampling methods (fresh faecal samples from nest and cloacal swabs from nestlings) for detection of both bacteria. A total of 28 nests with 45 nestlings were analysed. In the nest, Salmonella occurrence was 61 ± 9.2%, while Campylobacter occurrence was 11 ± 5.8% (p < 0.05). In the nestlings, Salmonella occurrence was 36 ± 7.1%, while Campylobacter occurrence was 11 ± 4.7% (p < 0.05). Eight Salmonella serovars were identified, and the most frequently isolated were S. Enteritidis, S. Typhimurium, S. Houston, and S. Cerro. Only one Campylobacter species was identified (C. jejuni). Regarding antimicrobial resistance, the Salmonella strains isolated were found to be most frequently resistant to ampicillin and to tigecycline; however, the sole Campylobacter strain recovered was multidrug resistant. In conclusion, this study demonstrated that wild Bonelli's eagles nestlings are greater carriers of Salmonella than of Campylobacter. Both Salmonella and Campylobacter isolates exhibited antimicrobial resistance. In addition, faecal samples from nests were most reliable for Salmonella detection, while cloacal swab from nestlings were most reliable for Campylobacter detection.
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Affiliation(s)
- Bárbara Martín-Maldonado
- GEMAS (Study Group on Wildlife Medicine and Conservation), Spain; Hospital Veterinario de Fauna Silvestre de GREFA. Majadahonda, Madrid, Spain
| | - Laura Montoro-Dasi
- Instituto de Ciencias Biomédicas. Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant Lo Blanc 7, 46115, Alfara del Patriarca, Valencia, Spain; Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, 46022, Valencia, Spain
| | - Maria Teresa Pérez-Gracia
- Instituto de Ciencias Biomédicas. Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant Lo Blanc 7, 46115, Alfara del Patriarca, Valencia, Spain
| | - Jaume Jordá
- Instituto de Ciencias Biomédicas. Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant Lo Blanc 7, 46115, Alfara del Patriarca, Valencia, Spain
| | - Santiago Vega
- GEMAS (Study Group on Wildlife Medicine and Conservation), Spain; Instituto de Ciencias Biomédicas. Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant Lo Blanc 7, 46115, Alfara del Patriarca, Valencia, Spain
| | - Francisco Marco-Jiménez
- Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, 46022, Valencia, Spain
| | - Clara Marin
- GEMAS (Study Group on Wildlife Medicine and Conservation), Spain; Instituto de Ciencias Biomédicas. Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant Lo Blanc 7, 46115, Alfara del Patriarca, Valencia, Spain.
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Badry A, Palma L, Beja P, Ciesielski TM, Dias A, Lierhagen S, Jenssen BM, Sturaro N, Eulaers I, Jaspers VLB. Using an apex predator for large-scale monitoring of trace element contamination: Associations with environmental, anthropogenic and dietary proxies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 676:746-755. [PMID: 31054418 DOI: 10.1016/j.scitotenv.2019.04.217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/13/2019] [Accepted: 04/13/2019] [Indexed: 06/09/2023]
Abstract
Understanding the levels and drivers of contamination in top predators is important for their conservation and eventual use as sentinels in environmental monitoring. Therefore, metals and trace elements were analyzed in feathers of Bonelli's eagles (Aquila fasciata) from southern Portugal in 2007-2013, where they are believed to be exposed to a wide range of contamination sources such as agricultural land uses, urban areas, active and abandoned mines and a coal-fired power plant. We focused on concentrations of aluminum (Al), arsenic (As), copper (Cu), chromium (Cr), mercury (Hg), lead (Pb), selenium (Se) and zinc (Zn), as these contaminants are potentially associated with those sources and are known to pose a risk for terrestrial vertebrates. Stable isotope values of nitrogen (δ15N: 15N/14N), carbon (δ13C: 13C/12C) and sulphur (δ34S: 34S/32S) were used as dietary proxies to control for potential effects of prey composition on the contamination pattern. The spatial distribution of potential contamination sources was quantified using geographic information systems. Concentrations of Hg in the southern part of the study area were above a reported toxicity threshold for raptors, particularly in territories closer to a coal-fired power plant at Sines, showing that contamination persisted after a previous assessment conducted in the 1990s. Hg and Se levels were positively correlated with δ15N, which indicates biomagnification. Concentrations of As, Cr, Cu, Pb and Zn were generally low and unrelated to mining- or industrial activities, indicating low environmental background concentrations. Al was found at higher concentrations in the southernmost areas of Portugal, but this pattern might be related to external soil contamination on feathers. Overall, this study indicates that, among all elements studied, Hg seems to be the most important contaminant for Bonelli's eagles in southern Portugal, likely due to the power plant emissions and biomagnification of Hg in terrestrial food webs.
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Affiliation(s)
- Alexander Badry
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway; Aquatic Ecology, University of Duisburg-Essen, Universitätsstr. 5, 45141 Essen, Germany.
| | - Luis Palma
- CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus de Vairão, Vila do Conde, Rua Padre Armando Quintas 7, 4485-661 Vairão, Portugal
| | - Pedro Beja
- CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus de Vairão, Vila do Conde, Rua Padre Armando Quintas 7, 4485-661 Vairão, Portugal; CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal
| | - Tomasz M Ciesielski
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Andreia Dias
- CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus de Vairão, Vila do Conde, Rua Padre Armando Quintas 7, 4485-661 Vairão, Portugal; Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Diagonal 643, 08028 Barcelona, Catalonia, Spain
| | - Syverin Lierhagen
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Bjørn Munro Jenssen
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Nicolas Sturaro
- Laboratory of Oceanology, FOCUS, University of Liège, B6C, 4000 Liège, Sart Tilman, Belgium
| | - Igor Eulaers
- Arctic Research Centre, Department of Bioscience, Aarhus University, Fredriksborgvej 399, 4000 Roskilde, Denmark
| | - Veerle L B Jaspers
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway.
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Dias A, Palma L, Carvalho F, Neto D, Real J, Beja P. The role of conservative versus innovative nesting behavior on the 25-year population expansion of an avian predator. Ecol Evol 2017. [PMID: 28649337 PMCID: PMC5478073 DOI: 10.1002/ece3.3007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Species ranges often change in relation to multiple environmental and demographic factors. Innovative behaviors may affect these changes by facilitating the use of novel habitats, although this idea has been little explored. Here, we investigate the importance of behavior during range change, using a 25-year population expansion of Bonelli's eagle in southern Portugal. This unique population is almost exclusively tree nesting, while all other populations in western Europe are predominantly cliff nesting. During 1991-2014, we surveyed nest sites and estimated the year when each breeding territory was established. We approximated the boundaries of 84 territories using Dirichlet tessellation and mapped topography, land cover, and the density of human infrastructures in buffers (250, 500, and 1,000 m) around nest and random sites. We then compared environmental conditions at matching nest and random sites within territories using conditional logistic regression, and used quantile regression to estimate trends in nesting habitats in relation to the year of territory establishment. Most nests (>85%, n = 197) were in eucalypts, maritime pines, and cork oaks. Nest sites were farther from the nests of neighboring territories than random points, and they were in areas with higher terrain roughness, lower cover by agricultural and built-up areas, and lower road and powerline densities. Nesting habitat selection varied little with year of territory establishment, although nesting in eucalypts increased, while cliff nesting and cork oak nesting, and terrain roughness declined. Our results suggest that the observed expansion of Bonelli's eagles was facilitated by the tree nesting behavior, which allowed the colonization of areas without cliffs. However, all but a very few breeding pairs settled in habitats comparable to those of the initial population nucleus, suggesting that after an initial trigger possibly facilitated by tree nesting, the habitat selection remained largely conservative. Overall, our study supports recent calls to incorporate information on behavior for understanding and predicting species range shifts.
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Affiliation(s)
- Andreia Dias
- Equip de Biologia de la Conservació Departament de Biologia Evolutiv Ecologia i Ciències Ambientals and Institut de la Recerca de la Biodiversitat (IRBIO) Universitat de Barcelona Barcelona Catalonia Spain.,CIBIO/InBio-UP Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade do Porto Vairão Portugal
| | - Luís Palma
- CIBIO/InBio-UP Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade do Porto Vairão Portugal
| | - Filipe Carvalho
- CIBIO/InBIO-UE Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade de Évora Évora Portugal.,Department of Zoology and Entomology School of Biological and Environmental Sciences University of Fort Hare Alice South Africa
| | - Dora Neto
- CIBIO/InBIO-UE Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade de Évora Évora Portugal
| | - Joan Real
- Equip de Biologia de la Conservació Departament de Biologia Evolutiv Ecologia i Ciències Ambientals and Institut de la Recerca de la Biodiversitat (IRBIO) Universitat de Barcelona Barcelona Catalonia Spain
| | - Pedro Beja
- CIBIO/InBio-UP Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade do Porto Vairão Portugal.,CEABN/InBIO Centro de Ecologia Aplicada "Professor Baeta Neves" Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal
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