Espécies vegetais dominantes do arquipélago de Fernando de Noronha: grupos ecológicos e repartição espacial

Batistella, Mateus

doi:10.1590/s0102-33061996000200003

Cited by 13 publications

(12 citation statements)

References 2 publications

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“…The climate is tropical and has two distinct seasons: a rainy season, from January to August and a dry season for the remainder of the year. The archipelago is influenced by the intense and constant alisios winds, blowing from east to southeast (Batistella, 1996). The archipelago contains cats, rats and the large lizard (Tupinambis merianae) that are known to predate seabirds (Efe, 2008).…”

Section: Study Areamentioning

confidence: 99%

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

et al. 2016

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Basic information on natural history is crucial for assessing the viability of populations, but is often lacking for many species of conservation concern. One such species is the White-tailed Tropicbird, Phaethon lepturus (Mathews, 1915). Here, we address this shortfall by providing detailed information on reproductive biology, distribution and threats on the Fernando de Noronha archipelago, Brazil -the largest colony of P. lepturus in the South Atlantic. We assessed reproduction from August 2011 to January 2012 by monitoring tropicbird nests and their contents. A population estimate was obtained through a combination of active searches for nests and by census at sea between 2010 and 2012. Breeding success was calculated by traditional methods. The growth curve of chicks and life table were also calculated. Additional information on nest and mate fidelity and on age of breeding birds was obtained from the banded birds. Our results indicate that the unusual nest form (limestone pinnacles) and predation by crabs may be responsible for the observed patterns of hatching and fledging success. Although the Fernando de Noronha population appears to be stable (at between 100-300 birds), a long term monitoring program would be desirable to assess fluctuations in this globally important population. Conservation strategies should focus on controlling predation by land crabs and tegu lizards.Keywords: Phaethon lepturus, seabird, breeding biology, Fernando de Noronha, Brazil. Biologia reprodutiva, tamanho populacional e conservação do rabo-de-palha-de-bico-laranja no Atlântico Sul ResumoInformações básicas sobre história natural são cruciais para acessar a viabilidade de populações, mas são ausentes para muitas espécies que necessitam de conservação. Uma destas espécies é o rabo-de-palha-de-bico-laranja, Phaethon lepturus Daudin, 1802. Aqui, vamos abordar o déficit de dados para esta espécie, fornecendo informações detalhadas sobre a biologia reprodutiva, tamanho da população, distribuição e ameaças em Fernando de Noronha, Brasil -a maior colônia de P. lepturus no Atlântico Sul. Acompanhamos a reprodução do rabo-de-palha-de-bico-laranja de Agosto de 2010 a Janeiro de 2011 monitorando ninhos e seus conteúdos. A estimativa da população foi obtida através de uma combinação de busca ativa de ninhos e censo no mar entre 2010 e 2012. O sucesso reprodutivo foi avaliado por métodos tradicionais. A curva de crescimento da coorte e a tabela de vida também foram obtidas. Além disso, informações sobre fidelidade ao ninho e parceiro e, a idade de reprodutores foi obtida a partir das aves anilhadas anteriormente. Nossos resultados indicam que a forma incomum de ninho (pináculos de calcário) e a predação por caranguejos podem ser responsáveis pelo sucesso observado de eclosão e recrutamento. A população de Fernando de Noronha parece estar estável entre 100-300 aves. No entanto, um programa de monitoramento a longo prazo seria desejável para avaliar as flutuações desta população globalmente importante. As estratégias de conservação ...

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Section: Study Areamentioning

confidence: 99%

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

et al. 2016

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“…Research projects focusing on island vegetations have been relatively rare in Brazil, whether coastal (e.g., Barros et al 1991;Menezes-Silva 1998;Oliveira 2002;Kemenes 2003;Bovini et al 2013) or oceanic (e.g., Batistella 1996;Alves 1998Alves , 2006Gasparini 2004) -in spite of the fact that the identification and description of island plant communities are of fundamental importance to evaluations of their conservation statuses. The low resilience (and consequent fragility) of these environments demands special consideration and specific management policies to guarantee their conservation.…”

Section: Introductionmentioning

confidence: 99%

<div>Floristic diversity of the Cagarras Islands Natural Monument, Rio de Janeiro, Brazil</div>

Bovini

Faria²,

Oliveira

et al. 2014

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The vascular flora was inventoried of the Cagarras Islands Natural Monument (CINM) located offshore of Rio de Janeiro, Brazil, and a total of 171 species were encountered. The families with the greatest richnesses were: Asteraceae (12 spp.), Myrtaceae (12), Fabaceae (11), Bromeliaceae (7), Cactaceae (6), Euphorbiaceae (6), and Poaceae (6). The regional vegetation was similar to restinga, although high concentrations of guano from nesting marine birds affected diversity on two islands. The threatened species Gymanthes nervosa Müll. Arg. was recorded from the municipality of Rio de Janeiro for the first time since the 1940s.

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“…A total of of 43 P. vivipara individuals (5 males and 38 females, 9.0–42.9 mm SL) were collected using hand nets and plastic bags. The site of species occurrence ( 03°51'57.80"S, 32°25'32.79"W ) is the only oceanic mangrove in the South Atlantic ( Serafini et al 2010 ), and is comprised of a single mangrove tree species, Laguncularia racemosa (L.) Gaertn ( Batistella 1996 ) (Fig. 2 ) covering an area ca.…”

Section: Methodsmentioning

confidence: 99%

Poecilia vivipara Bloch & Schneider, 1801 (Cyprinodontiformes, Poeciliidae), a guppy in an oceanic archipelago: from where did it come?

Berbel‐Filho

Barros-Neto

Dias³

et al. 2018

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Poecilia vivipara, a small euryhaline guppy is reported at the Maceió River micro-basin in the Fernando de Noronha oceanic archipelago, northeast Brazil. However, the origin (human-mediated or natural dispersal) of this insular population is still controversial. The present study investigates how this population is phylogenetically related to the surrounding continental populations using the cytochrome oxidase I mitochondrial gene from eleven river basins in South America. Our phylogenetic reconstruction showed a clear geographical distribution arrangement of P. vivipara lineages. The Fernando de Noronha haplotype fell within the 'north' clade, closely related to a shared haplotype between the Paraíba do Norte and Potengi basins; the geographically closest continental drainages. Our phylogenetic reconstruction also showed highly divergent lineages, suggesting that P. vivipara may represent a species complex along its wide distribution. Regarding to the insular population, P. vivipara may have been intentionally introduced to the archipelago for the purpose of mosquito larvae control during the occupation of a U.S. military base following World War II. However, given the euryhaline capacity of P. vivipara, a potential scenario of natural (passive or active) dispersal cannot be ruled out.

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Espécies vegetais dominantes do arquipélago de Fernando de Noronha: grupos ecológicos e repartição espacial

Cited by 13 publications

References 2 publications

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

<div>Floristic diversity of the Cagarras Islands Natural Monument, Rio de Janeiro, Brazil</div>

Poecilia vivipara Bloch & Schneider, 1801 (Cyprinodontiformes, Poeciliidae), a guppy in an oceanic archipelago: from where did it come?

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Espécies vegetais dominantes do arquipélago de Fernando de Noronha: grupos ecológicos e repartição espacial

Cited by 13 publications

References 2 publications

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

Breeding of White-tailed Tropicbirds (Phaethon lepturus) in the western South Atlantic

<div>Floristic diversity of the Cagarras Islands Natural Monument, Rio de Janeiro, Brazil</div>

Poecilia vivipara Bloch &amp; Schneider, 1801 (Cyprinodontiformes, Poeciliidae), a guppy in an oceanic archipelago: from where did it come?

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Poecilia vivipara Bloch & Schneider, 1801 (Cyprinodontiformes, Poeciliidae), a guppy in an oceanic archipelago: from where did it come?