Influência da estrutura de hábitat sobre aranhas (Araneae) de serrapilheira em dois pequenos fragmentos de mata atlântica

Benati, Kátia Regina; Peres, Marcelo Cesar Lima; Tinôco, None Moacir Santos; Brescovit, Antônio D.

doi:10.4013/nbc.2010.51.06

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…Studies conducted in isolated forest remnants in different anthropogenic matrices show a need to understand this spatial and temporal dynamics, since they are fundamental factors for the conservation of animal communities, including spider assemblages (e.g. Candiani et al 2005, Major et al 2006, Mestre & Gasnier 2008, Benati et al 2010, Haddad et al 2011, Rodríguez-Rodríguez et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Ground spiders (Arachnida, Araneae) associated with urban forest fragments in southern Amazon

et al. 2020

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Forest fragments in urban areas comprise important habitats for a wide variety of species, however, conservationist policies for their maintenance and conservation are still incipient. This study examined the richness and abundance of the ground-spider assemblage in five forest fragments, with areas ranging between 18.5 and 103.98 ha, in the urban perimeter of Sinop, northern Mato Grosso State, southern Amazon region of Brazil. Sampling was carried out using the mini-Winkler extractor and pitfall traps in the dry (July) and rainy (November) seasons of 2017. All fragments were characterized in relation to the area and the Index of Biotic Integrity (IBI), to assess the effect of these variables on richness and abundance of soil spider assemblage. A total of 653 spiders were sampled, corresponding to 25 families and 52 species. Salticidae, Theridiidae, Lycosidae, Linyphiidae, Oonopidae and Symphytognathidae were the most abundant families (63.3% of the total sample). The assemblage was characterized by the dominance of hunting spiders (393 ind.; 60.2%) over web-building spiders (260 ind.; 39.8%). Greater spider abundance and richness was obtained during the rainy season (517 ind.; 79.2%; 41 spp.) as compared with the dry season (136 ind.; 20.8%; 24 spp.). Only 13 species occurred in dry and rainy season. Two species were recorded for the first time in the Amazon region, namely, Anapistula aquytabueraRheims & Brescovit, 2003 (Symphytognathidae) and Opopaea concolor (Blackwall, 1859) (Oonopidae). Species richness was not affected by IBI and area of fragment. Although the statistical model is not significant, species richness increases slightly with IBI and area of fragment. Similarly, abundance of spiders was not affected by IBI and area of fragment. Regardless of the area size, all evaluated forest fragments showed a low and regular IBI, demonstrating that these habitats have suffered with the pressures inherent from the urban perimeter, including the constant expansion of human occupation as well as misuse by the population. Nonetheless, these same fragments revealed considerable richness of species of ground spiders and can thus be categorized as important habitats for the maintenance of regional biodiversity. Therefore, action strategies must be set out to ensure their conservation.

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Section: Introductionmentioning

confidence: 99%

Ground spiders (Arachnida, Araneae) associated with urban forest fragments in southern Amazon

et al. 2020

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“…In tropical forests such as any other natural landscape, habitat structure influences the richness and composition of spider's assemblages species [34]). Leaf litter structure also affects spiders' abundance [35], richness and composition [36] [37]. Therefore, natural disturbance caused by tree fall gaps may also influence the spider's assemblages [38] [39].…”

Section: Introductionmentioning

confidence: 99%

Tree-Fall Gaps Effects on Spider (Araneae) Assemblages in an Atlantic Forest Landscape in Northeastern Brazil

Peres

Benati²,

Andrade³

et al. 2014

OJAS

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The study investigates the effect of spatial and temporal tree-fall gaps structure on spiders' assemblage in an Atlantic forest fragmented area in Brazil. It was conducted in the Michelin Ecological Preserve-REM (Bahia), 190 ha forest remnant. Samples were collected on leaf-litter (50 × 50 cm) at five tree-fall gaps formations (<150 m 2), within five adjacent primary forest and five inner edge parcels. During 16 months (between May 2009 and October 2012), 480 m 2 leaf-litter samples were collected, from which spiders were extracted using mini-Winkler traps. The observed and estimated richness of spider's species was higher at the edge (p < 0.01). The habitat structures differ significantly among the three habitat types (MRPP, p < 0.01) and also during the tree-fall gaps aging gradient (MRBP, p < 0.01). There were significant differences on spiders' species composition, comparing the three habitats (MRPP, p < 0.05). The composition of spider's species changed as tree-fall gaps aged (MRBP, p < 0.05). We argue that the tree-fall gaps play, on a local scale, an important role in acting on the time-space distribution dynamics of spider's species assemblages, although the time effect should still be evaluated.

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Influence of Different Provenances of Spondias Tuberosa on Soil Mesofauna in the Semi-arid Region of Brazil

Oliveira

Barreto-Garcia

Scoriza

et al. 2020

Journal of Sustainable Forestry

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Influência da estrutura de hábitat sobre aranhas (Araneae) de serrapilheira em dois pequenos fragmentos de mata atlântica

Cited by 5 publications

References 19 publications

Ground spiders (Arachnida, Araneae) associated with urban forest fragments in southern Amazon

Ground spiders (Arachnida, Araneae) associated with urban forest fragments in southern Amazon

Tree-Fall Gaps Effects on Spider (Araneae) Assemblages in an Atlantic Forest Landscape in Northeastern Brazil

Influence of Different Provenances of Spondias Tuberosa on Soil Mesofauna in the Semi-arid Region of Brazil

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