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001-es BibID:BIBFORM117849
035-os BibID:(Scopus)85181504820 (WOS)001136530300001
Első szerző:Engel, Noémie
Cím:Climatic variation influences annual survival of an island-breeding tropical shorebird / Noémie Engel, Brett K. Sandercock, András Kosztolányi, Andreia Adrião, Alex Tavares, Romy Rice, Tamás Székely
Dátum:2024
ISSN:0908-8857
Megjegyzések:Global biodiversity loss is a major environmental concern. The wildlife on islands are particularly vulnerable to threats posed by alien predators, habitat loss and overexploitation. Effective conservation management of vulnerable species requires reliable information on vital population rates for all life stages and an understanding of key environmental drivers. However, demographic data are often not available for island populations before they decline or are extirpated. Here, we use Cormack?Jolly?Seber (CJS) models and 15 years of data for 1370 juveniles and 687 adults to estimate apparent survival for a genetically distinct resident population of Kentish plovers Charadrius alexandrinus on the island of Maio, Cabo Verde. We report two main findings. First, environmental conditions have a large effect on demographic performance since chicks that hatch during dry years experience a tenfold reduction in first-year survival compared to chicks that hatch during wet years. Second, female and male plovers in Maio are expected to live for 7.41 ? 0.69 (mean ? SE) years and 6.75 ? 0.64 years, respectively, due to relatively high annual survival among comparable-sized shorebirds. High adult survival thus could buffer the population against low reproductive success that this population has experienced over the last decade. Cabo Verde is typical of tropical islands with increased development that can impact native breeders and/or will accelerate habitat loss. Thus, more frequent droughts associated with climate change may exacerbate the prospects of native wildlife on many islands.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
apparent survival
demography
island conservation
Kentish plover
Macaronesia
wader
Megjelenés:Journal Of Avian Biology. - [Epub ahead of print] (2024). -
További szerzők:Sandercock, Brett K. Kosztolányi András (1971-) (biológus) Adrião, Andreia Tavares, Alex Rice, Romy Székely Tamás (1959-) (biológus)
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001-es BibID:BIBFORM104170
035-os BibID:(cikkazonosító)13872 (WOS)000563538400022 (Scopus)85089548756
Első szerző:McDonald, Grant C.
Cím:The impact of social structure on breeding strategies in an island bird / Grant C. McDonald, Noémie Engel, Sara S. Ratão, Tamás Székely, András Kosztolányi
Dátum:2020
ISSN:2045-2322
Megjegyzések:The social environment is a key factor determining fitness by influencing multiple stages of reproduction, including pair formation, mating behavior and parenting. However, the influence of social structure across different aspects of breeding is rarely examined simultaneously in wild populations. We therefore lack a consolidation of the mechanisms by which sociality impacts reproduction. Here we investigate the implications of the social environment before and during breeding on multiple stages of reproduction in an island population of the ground nesting shorebird, the Kentish plover (Charadrius alexandrinus). We utilise information on mating decisions, nest locations and nesting success across multiple years in combination with social network analysis. Sociality before breeding was connected with patterns of pair formation. In addition, site fidelity and personal breeding experience was associated with the spatial organisation of breeding pairs. Our results provide evidence that, while differential social interactions at localised scales influence patterns of reproductive pairing, site fidelity and personal breeding experience influence the structure of populations at the landscape scale. Our results underline the tight link between the social structure of populations and patterns of mating, while revealing that the relative influence of sociality, breeding experience and local ecology are dynamic across different facets of reproduction.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 10 : 1 (2020), p. 1-10. -
További szerzők:Engel, Noémie Ratão, Sara S. Székely Tamás (1959-) (biológus) Kosztolányi András (1971-) (biológus)
Pályázati támogatás:ÉLVONAL KKP-126949
Egyéb
NKFIH-K-116310
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DOI
Intézményi repozitóriumban (DEA) tárolt változat
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