Crustáceos decápodos da Ilha da Restinga

Farias, Maria da Conceição Quintino

doi:10.1590/s0373-55241980000200034

Cited by 6 publications

(2 citation statements)

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“…The study was performed on the Ilha da Restinga ('Restinga Island', 07 0 0 10.60 00 S and 34 51 0 32.01 00 W), located at the mouth of the Northern Paraíba River, in the municipality of Cabedelo, Paraíba, northeastern Brazil. With 530 ha and a relatively flat topography, ranging from 0 to 11 m above sea level, the island is part of the Atlantic Forest domain and the vegetation consists primarily of mangroves in flooded regions and sandbank woods, estuaries and lagoons (Farias, 1980). The formation of the island occurred through soil accumulation brought by the Paraíba River (Oliveira, 2012).…”

Section: Study Areamentioning

confidence: 99%

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

Silva

Souza

et al. 2017

Acta Oecologica

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Arbuscular mycorrhizal fungi (AMF) play a key role in the maintenance of the balance of terrestrial ecosystems, but little is known about the biogeography of these fungi, especially on tropical islands. This study aims to compare AMF community structure along a transect crossing a fluvial-marine island and relate these communities with soil and vegetation parameters to shed light on the forces driving AMF community structure on a local scale. We tested the hypothesis that the composition of AMF communities changes across the island, even within short distances among sites, in response to differences in edaphic characteristics and vegetation physiognomies. We sampled roots and soils in five different natural and degraded habitats: preserved mangrove forest (MF), degraded mangrove forest (MD), natural Restinga forest (RF), and two regeneration Restinga forests (RR1 and RR2) on Ilha da Restinga, northeastern Brazil. We determined the mycorrhizal colonization rate and AMF community structure based on morphological spore identification. The island soils were sandy with pH varying from acid to neutral; higher levels of organic matter were registered in RF and lower in MF; other chemical and physical soil attributes differed along the habitat types on the island. In total, 22 AMF species were identified, without any difference in species richness. However, the diversity and composition of AMF communities, spore abundance per families, and mycorrhizal colonization were statistically different among the habitats. The composition of AMF communities was strongly related to soil characteristics, especially the sum of exchangeable bases. Our results indicate that the different habitat types have diverse AMF communities even within short distances among habitats. In conclusion, islands with high spatial heterogeneity in soil parameters and diverse vegetation are potential refuges for the diversity conservation of AM fungi.

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Section: Study Areamentioning

confidence: 99%

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

Silva

Souza

et al. 2017

Acta Oecologica

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“…Many studies have examined Brachyura crustaceans, mainly the swamp ghost crabs (Ucides cordatus) (Nordi, 1994,Blankensteyn, Filho, & Freire, 1997Fiscarelli & Pinheiro, 2002;Passos & Beneditto, 2005;Nishida et al, 2006;Carvalho & Igarashi, 2009; among others), but less work has focused on the distribution and occurrence of blue land crabs (Silva & Coelho, 1960;Farias, 1980;Macedo & Koening, 1987;Silva & Oshiro, 2002;Firmo et al, 2012;Santos et al, 2016) or their physiology, morphology and histology (Pinder & Smits, 1993;Gannon, Arunakul, & Henry, 2001;Gannon & Henry, 2004;Castilho, Ostrensky, Pie, & Boeger, 2008;Oliveira-Neto, Pie, Chammas, Ostrensky, & Boeger, 2008). There have not been any studies of this crab species in Paraíba State, just occasional mentions of its existence (Souto, 2007;Nishida et al, 2006;Firmo et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

<b>Traditional knowledge and variations in capture techniques used for blue land crab (<i>Cardisoma guanhumi</i>, L. 1825) along the coast of Paraíba, Brazil

Takahashi¹,

Nishida²

2018

Acta Sci. Biol. Sci.

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The Mamanguape estuary, located in the Paraíba State (Brazil), hosts many traditional fishing communities and Amerindian villages whose use of the regional natural resources is fundamental to their cultural and physical survival. The aim was to register the traditional local knowledge about the different fish techniques, the influence of the dynamics of the natural environment on the activities of the blue land crab, and the relationships between the sizes of their dens and the sizes of the animals themselves. The only technique used to capture blue land crab is a trap called 'mousetrap'. It was recorded different materials such as PET bottles, to build the traps. The fishermen stated that fruits are used as bait as well as sugar-cane and onions. The phases of the moon and the different tides do not significantly influence their activities as the crabs inhabit higher lands beyond the influence of normal tides. The knowledge documented here concerning the blue land crab demonstrated that these shell fish harvesters have a detailed understanding of their environment based on observations and empiricism that allows them to determine which techniques and strategies will increase their chances of capturing their prey and consequently guaranteeing their income.

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Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil

Weber

Levy

2000

Marine Genetics

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Crustáceos decápodos da Ilha da Restinga

Cited by 6 publications

References 1 publication

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

<b>Traditional knowledge and variations in capture techniques used for blue land crab (<i>Cardisoma guanhumi</i>, L. 1825) along the coast of Paraíba, Brazil

Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil

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