دورية أكاديمية

The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic.

التفاصيل البيبلوغرافية
العنوان: The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic.
المؤلفون: Procksch N; Laboratório de Ecologia de Mamíferos (LEM), Universidade Do Vale Do Rio Dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, São Leopoldo, RS, 93022-750, Brazil., Grandi MF; Laboratório de Mamíferos Marinos, Centro Para El Estudio de Sistemas Marinos, CONICET, Bvd. Brown 2915, 9120, Puerto Madryn, Chubut, Argentina., Ott PH; Laboratório de Biodiversidade E Conservação (LABeC), Universidade Estadual Do Rio Grande Do Sul (UERGS), Rua Machado de Assis, 1456, Osório, RS, 95520-000, Brazil.; Grupo de Estudos de Mamíferos Aquáticos Do Rio Grande Do Sul (GEMARS), Rua Bento Gonçalves, 165, sala 1002, Torres, RS, 95560-000, Brazil., Groch K; Projeto Baleia Franca, Instituto Australis de Pesquisa E Monitoramento Ambiental, Av. Atlântica, s/n- Itapiruba Norte, Imbituba, SC, 88780-000, Brazil., Flores PAC; Centro Mamíferos Aquáticos, Currently at Área de Proteção Ambiental (Environmental Protection Area) Anhatomirim-SC, ICMBio-MMA, Rod. SC 402, km 1, Jurerê, Florianópolis, SC, 88053-700, Brazil., Zagonel M; Laboratório de Ecologia Espacial, Universidade Do Vale Do Rio Dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, São Leopoldo, RS, 93022-750, Brazil.; Advanced Visualization and Geoinformatics Laboratory (VizLab), Universidade Do Vale Do Rio Dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, São Leopoldo, RS, 93022-750, Brazil., Crespo EA; Laboratório de Mamíferos Marinos, Centro Para El Estudio de Sistemas Marinos, CONICET, Bvd. Brown 2915, 9120, Puerto Madryn, Chubut, Argentina., Machado R; Grupo de Estudos de Mamíferos Aquáticos Do Rio Grande Do Sul (GEMARS), Rua Bento Gonçalves, 165, sala 1002, Torres, RS, 95560-000, Brazil., Pavez G; Centro de Investigación Y Gestión en Recursos Naturales (CIGREN), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile., Guimarães M; Departamento de Zoologia, Universidade Federal Do Rio Grande Do Sul, Avenida Bento Gonçalves, 9500, Agronomia, Porto Alegre, RS, 91509-900, Brazil., Veronez M; Advanced Visualization and Geoinformatics Laboratory (VizLab), Universidade Do Vale Do Rio Dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, São Leopoldo, RS, 93022-750, Brazil., de Oliveira LR; Laboratório de Ecologia de Mamíferos (LEM), Universidade Do Vale Do Rio Dos Sinos (UNISINOS), Av. Unisinos 950, Cristo Rei, São Leopoldo, RS, 93022-750, Brazil. larissaro@unisinos.br.; Grupo de Estudos de Mamíferos Aquáticos Do Rio Grande Do Sul (GEMARS), Rua Bento Gonçalves, 165, sala 1002, Torres, RS, 95560-000, Brazil. larissaro@unisinos.br.
المصدر: Scientific reports [Sci Rep] 2020 Nov 17; Vol. 10 (1), pp. 20008. Date of Electronic Publication: 2020 Nov 17.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : Nature Publishing Group, copyright 2011-
مواضيع طبية MeSH: Fur Seals/*physiology , Sea Lions/*physiology, Animals ; Brazil ; Caniformia/physiology ; Female ; Male ; Seals, Earless/physiology ; Seasons
مستخلص: We present estimates of the seasonal and spatial occupation by pinnipeds of the Wildlife Refuge of Ilha dos Lobos (WRIL), based on aerial photographic censuses. Twenty aerial photographic censuses were analysed between July 2010 and November 2018. To assess monthly differences in the numbers of pinnipeds in the WRIL we used a Generalized Linear Mixed Model. Spatial analysis was carried out using Kernel density analysis of the pinnipeds on a grid plotted along the WRIL. Subadult male South American sea lions (Otaria flavescens) were the most abundant pinniped in the WRIL. Potential females of this species were also recorded during half of the census. The maximum number of pinnipeds observed in the WRIL was 304 in September 2018, including an unexpected individual southern elephant seal (Mirounga leonina), and a high number of South American fur seal yearlings (Arctocephalus australis). However, there was no statistically significant difference in counts between months. In all months analysed, pinnipeds were most often found concentrated in the northern portion of the island, with the highest abundances reported in September. This study confirms the importance of the WRIL as a haulout site for pinnipeds in Brazil, recommends that land research and recreational activities occur in months when no pinnipeds are present, and encourages a regulated marine mammal-based tourism during winter and spring months.
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تواريخ الأحداث: Date Created: 20201118 Date Completed: 20210114 Latest Revision: 20210114
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC7672111
DOI: 10.1038/s41598-020-76755-2
PMID: 33203946
قاعدة البيانات: MEDLINE
الوصف
تدمد:2045-2322
DOI:10.1038/s41598-020-76755-2