Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina

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The critically endangered hooded grebe Podiceps gallardoi has suffered a population reduction of 80% in the last 25 years. Although climatic conditions are suggested to be important causes of this decline, invasive species are also having a large impact. Hooded grebes have the lowest recruitment rat...

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Autores principales: Roesler, I., Fasola, L., Casañas, H., Hernández, P.M., de Miguel, A., Giusti, M.E., Reboreda, J.C.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17582067_v13_n_p62_Roesler
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_17582067_v13_n_p62_Roesler
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spelling todo:paper_17582067_v13_n_p62_Roesler2023-10-03T16:32:44Z Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina Roesler, I. Fasola, L. Casañas, H. Hernández, P.M. de Miguel, A. Giusti, M.E. Reboreda, J.C. The critically endangered hooded grebe Podiceps gallardoi has suffered a population reduction of 80% in the last 25 years. Although climatic conditions are suggested to be important causes of this decline, invasive species are also having a large impact. Hooded grebes have the lowest recruitment rate within the Podicepodiformes, but this is usually compensated by high adult survival. Considering these life history traits and threats, we designed the ‘colony guardian programme’, which aimed to protect nesting grebes by reducing the negative impacts of American mink and kelp gull on breeding colonies of grebes in central-western Santa Cruz Province, Argentina. Over five breeding seasons between 2011 and 2015, 10 colonies were protected using a total of 755 fieldwork days. Colonies guarded throughout the breeding season had higher recruitment (0.64 juveniles/breeding pair) than colonies with little or no protection (0.39 juveniles/breeding pair). © Conservation Evidence. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17582067_v13_n_p62_Roesler
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The critically endangered hooded grebe Podiceps gallardoi has suffered a population reduction of 80% in the last 25 years. Although climatic conditions are suggested to be important causes of this decline, invasive species are also having a large impact. Hooded grebes have the lowest recruitment rate within the Podicepodiformes, but this is usually compensated by high adult survival. Considering these life history traits and threats, we designed the ‘colony guardian programme’, which aimed to protect nesting grebes by reducing the negative impacts of American mink and kelp gull on breeding colonies of grebes in central-western Santa Cruz Province, Argentina. Over five breeding seasons between 2011 and 2015, 10 colonies were protected using a total of 755 fieldwork days. Colonies guarded throughout the breeding season had higher recruitment (0.64 juveniles/breeding pair) than colonies with little or no protection (0.39 juveniles/breeding pair). © Conservation Evidence. All rights reserved.
format JOUR
author Roesler, I.
Fasola, L.
Casañas, H.
Hernández, P.M.
de Miguel, A.
Giusti, M.E.
Reboreda, J.C.
spellingShingle Roesler, I.
Fasola, L.
Casañas, H.
Hernández, P.M.
de Miguel, A.
Giusti, M.E.
Reboreda, J.C.
Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
author_facet Roesler, I.
Fasola, L.
Casañas, H.
Hernández, P.M.
de Miguel, A.
Giusti, M.E.
Reboreda, J.C.
author_sort Roesler, I.
title Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
title_short Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
title_full Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
title_fullStr Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
title_full_unstemmed Colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, Argentina
title_sort colony guardian programme improves recruitment in the critically endangered hooded grebe podiceps gallardoi in austral patagonia, argentina
url http://hdl.handle.net/20.500.12110/paper_17582067_v13_n_p62_Roesler
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