Adaptação de um índice de integridade biótica para análise da sustentabilidade em florestas urbanas

Graciano-Silva, Thaís Graciano-Silva; Mello, Kaline de; Cardoso-Leite, Eliana

doi:10.22478/ufpb.1981-1268.2018v12n2.35991

Cited by 5 publications

(15 citation statements)

References 12 publications

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“…Among the environmental quality assessment methods, one finds the Index of Biotic Integrity (IBI) (MEDEIROS; TOREZAN, 2013), which uses environmental variables such as incidence of indicator species, forest structure, as well as incidence of gaps/dead trees, grass or exotic woody species. Therefore, one can assume that the greater the biotic integrity of a given fragment, the greater its resilience (GRACIANO-SILVA; MELLO; CARDOSO-LEITE, 2018). However, studies of this nature carried out in urban environments remain scarce, mainly in Brazil (GREGORINI, 2015; GRACIANO-SILVA, MELLO AND CARDOSO-LEITE, 2018;GALVANI, 2018).…”

Section: Introductionmentioning

confidence: 99%

Association between urbanization and the biotic integrity of urban forest remnants

2022

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The disturbance of forest fragments has reduced environmental quality, ecosystem services and climate mitigation in several cities. The aim of the current article is to analyze the quality of native forest fragments close to urban areas. Seven forest fragments in Southeastern Brazil were selected for analysis based on two spatial scales: landscape and fragment. Analyses were structured by combining landscape diagnosis to the evaluation of the analyzed fragments, based on the application of an Index of Biotic Integrity. Data analyzed at landscape scale have shown association between the size of the analyzed urban forest fragment and its biotic integrity, as well as inversely proportional association between integrity and perimeter/area ratio. The fragment scale enabled corroborating the current study’s hypothesis and evidenced association between quality of urban forest fragments and their proximity to urban areas. The adopted method has proved to be an important instrument to help developing environmental public policies focused on urban forests’ planning and conservation.

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Section: Introductionmentioning

confidence: 99%

Association between urbanization and the biotic integrity of urban forest remnants

2022

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“…Also, there is an increase of the presence of dead trees, clearings, lianas and grasses. These indicators (mainly exotic grasses and dead trees) were present basically in all the studied areas of Sorocaba (Graciano- Silva et al, 2018) and most of them also in Ribeirão Preto (Galvani, 2018). Besides, the occurrence of the "vascular epiphyte" indicator and the absence of "orchids" were also registered for both municipalities, which must be related to the increase of the winds, and the decrease of the relative humidity of the air.…”

Section: Resultsmentioning

confidence: 88%

“…It was calculated the Biotic Integrity Index (BII), proposed by Medeiros and Torezan (2013) and adapted by Graciano- Silva et al, (2018), for each area. It was used 3 plots of 10x10m (or 100 meters square), inside each fragment.…”

Section: Data Collecting Biotic Integrity Indexmentioning

confidence: 99%

“…This index (BII) is composed of a simple set, easily measurable variables that, when analyzed as a whole, can reveal much about the state of biotic integrity of the forest. As the original study (Medeiros and Torezan, 2013) was carried out in forest fragments inserted in a rural matrix, Graciano- Silva et al (2018) adapted the BII method for forest fragments in an urban matrix, that is, in urban forests.…”

Section: Introductionmentioning

confidence: 99%

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Is Biotic Integrity of Urban Forests Remants Related With Their Size and Shape?

Galvani

Graciano-Silva

Cardoso-Leite

2020

CERNE

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“…The applied indices proved to be efficient in the diagnosis of habitat conditions, since they managed to numerically translate the conditions found in the field (Graciano-Silva et al 2018) and directly correlate with the number of species found in the areas. The evaluation of species distribution according to fragment size demonstrates a variation in the distribution of the species abundance according to the size of the areas, with a tendency for larger fragments to maintain a greater number of species.…”

Section: Urban Forest Fragmentsmentioning

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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Adaptação de um índice de integridade biótica para análise da sustentabilidade em florestas urbanas

Cited by 5 publications

References 12 publications

Association between urbanization and the biotic integrity of urban forest remnants

Association between urbanization and the biotic integrity of urban forest remnants

Is Biotic Integrity of Urban Forests Remants Related With Their Size and Shape?

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

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