Changes in Brazilian Drosophilidae (Diptera) assemblages across an urbanisation gradient

Gottschalk, Marco Silva; Toni, Daniela Cristina De; Valente, Vera Lúcia da Silva; Hofmann, Paulo R. P.

doi:10.1590/s1519-566x2007000600005

Cited by 65 publications

(67 citation statements)

References 33 publications

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“…Among the Neotropical indigenous species, the subgroup willistoni showed differences of more than 70% between areas (Table 3) Regarding the ecological indexes, PMA in 2006 (H' = 2.601) and the autumn in 2006 in both areas (PMA: H' = 2.941; FBL: H' = 2.626) had higher diversity than already detected, but in general, the diversity indexes (H') were mostly similar (but sometimes higher than) to those found in other works (Silva et al, 2005a;Tidon, 2006;Toni et al, 2007;Gottschalk et al, 2007;Bizzo et al, 2010;Schmitz et al, 2010;Poppe et al, 2012). No seasonal pattern was detected in both areas.…”

Section: Resultssupporting

confidence: 68%

“…The tripunctata group had the higher richness (Table 2). A relatively low mean of the total N per trap (N T ) was obtained from both areas combined (N T = 9.09) when compared with other Drosophilidae assemblage from southern Brazil (N T > 90 - Gottschalk et al, 2007;Döge et al, 2008;Poppe et al, 2012). This could be a result of the climatic conditions of these highland Araucaria Forest fragments in the sampled years, such as: higher annual relative humidity and precipitation, winters with negative temperatures, severe hoar-frosts, mean temperature in the warmer months below 21 °C, and mean annual temperature below 17 °C (data from UNICENTRO climate station, Guarapuava-PR).…”

Section: Resultsmentioning

confidence: 83%

“…The high abundance observed for D. simulans in Brazilian natural environments was suggested to be due to the "naturalization" of this species (Dobzhansky and Pavan, 1950;Pavan, 1959). However, according to Gottschalk et al (2007), D. simulans distribution pattern in urban gradients suggests that perhaps this species cannot establish itself so easily in the Atlantic Forest.…”

Section: Resultsmentioning

confidence: 99%

“…In two years of collection, only 10 individuals were captured from both areas (Table 4). This species was recently introduced in the southeast of Brazil (Vilela, 1999) and became a highly abundant species in natural as well as in urbanized environments (De Toni et al, 2001;Ferreira and Tidon, 2005;Silva et al, 2005a, b;Gottschalk et al, 2007). However, low abundance for this species was also found in transition areas between Atlantic Forest and Pampa (Hochmüller et al, 2010) and in Pampa (Poppe et al, 2012), both from the interior of the Rio Grande do Sul state, southern Brazil.…”

Section: Resultsmentioning

confidence: 99%

“…Multiple aspects make members of this family an excellent model, as described by Powell (1997): they are small, numerous, with a short life cycle, easily collected and manipulated, besides being extremely sensitive to changes in their habitat conditions. Some studies have reported that the relative abundance of Drosophilidae exotic species, usually cosmopolitan and associated with antrophic environments, presents a significant increase that corresponds to the increase in the level of urbanization (e.g., Avondet et al, 2003;Ferreira and Tidon, 2005;Gottschalk et al, 2007;Poppe et al, 2012). On the other hand, the frequency of indigenous and forest associated species decreases in these conditions, and some of them become absent in altered locations.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Drosophilidae (Diptera) assemblages from two highland Araucaria Forest fragments, with and without environmental conservation policies

et al. 2014

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Flies from the Drosophilidae family are model organisms for biological studies and are often suggested as bioindicators of environmental quality. The Araucaria Forest, one of Atlantic Forest phyto-physiognomy, displays a highly fragmented distribution due to the expansion of agriculture and urbanization. Thus, this work aimed to evaluate and compare the drosophilid assemblages from two highland Araucaria Forest fragments, one a conservation unit (PMA -Parque Municipal das Araucárias) and the other a private property without any conservational policy (FBL -Fazenda Brandalise), in space and time, using species abundances and richness, ecological indexes and Neotropical and exotic species proportions as parameters to establish the level of environmental quality of these fragments. Our results showed that the observed diversity in PMA (H' = 2.221) was approximately 40% higher than in FBL (H' = 1.592). This could be due to higher preservation quality and habitat diversity in PMA, indicating the importance of conservation units. However, richness were similar for these areas, with PMA (D mg = 6.602) only 8% higher than FBL (D mg = 6.128), which suggest that the larger distance from city limits and the larger size of FBL forested area could be compensating the higher disturbance caused by antrophic extractive exploitation of this fragment. This points out that, besides the quality of presevertion, the size and/or connection with other fragments should be considered for areas destined for biodiversity conservation. In general, both areas presented similar drosophilid assemblages, and the expressive abundance of both Neotropical species (mostly of the subgroup willistoni) and the exotic species D. kikkawai suggests that these areas are in intermediate stages of conservation.Keywords: ecological indexes, Mixed Ombrophylous Forest, exotic species, Drosophila, Atlantic Forest, Neotropical region. Comparação das assembleias de Drosophilidae (Diptera) de dois fragmentos de floresta de araucária de altitude, com e sem políticas de conservação ambiental ResumoMoscas da família Drosophilidae são organismos modelo para estudos biológicos e frequentemente sugeridas como bioindicadoras da qualidade ambiental. A Mata de Araucária, uma das fitofisionomias da Mata Atlântica, apresenta-se altamente fragmentada devido a expansão da agricultura e da urbanização. Assim, este trabalho teve como objetivo avaliar e comparar as assembleias de drosofilídeos de dois fragmentos de Mata de Araucária de altitude, uma área de preservação (PMA -Parque Municipal das Araucárias) e uma propriedade particular e sem política de conservação (FBL -Fazenda Brandalise), no tempo e no espaço, utilizando abundâncias e riquezas das espécies, índices ecológicos e proporções de espécies neotropicais e espécies exóticas como parâmetros para estabelecer o nível de qualidade ambiental destes fragmentos. Nossos resultados mostraram que a diversidade observada em PMA (H' = 2,221) foi 40% maior do que em FBL (H' = 1,592). Isto pode ser devido a maior qualidade ...

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Section: Resultssupporting

confidence: 68%

Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of Drosophilidae (Diptera) assemblages from two highland Araucaria Forest fragments, with and without environmental conservation policies

et al. 2014

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ThePREDICTSdatabase: a global database of how local terrestrial biodiversity responds to human impacts

Hudson

Newbold

Contu

et al. 2014

Ecology and Evolution

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207

250

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Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project – and avert – future declines. We describe and assess a new database of more than 1.6 million samples from 78 countries representing over 28,000 species, collated from existing spatial comparisons of local-scale biodiversity exposed to different intensities and types of anthropogenic pressures, from terrestrial sites around the world. The database contains measurements taken in 208 (of 814) ecoregions, 13 (of 14) biomes, 25 (of 35) biodiversity hotspots and 16 (of 17) megadiverse countries. The database contains more than 1% of the total number of all species described, and more than 1% of the described species within many taxonomic groups – including flowering plants, gymnosperms, birds, mammals, reptiles, amphibians, beetles, lepidopterans and hymenopterans. The dataset, which is still being added to, is therefore already considerably larger and more representative than those used by previous quantitative models of biodiversity trends and responses. The database is being assembled as part of the PREDICTS project (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems – http://www.predicts.org.uk). We make site-level summary data available alongside this article. The full database will be publicly available in 2015.

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The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

Hudson

Newbold

Contu

et al. 2016

Ecology and Evolution

221

227

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The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity.

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Changes in Brazilian Drosophilidae (Diptera) assemblages across an urbanisation gradient

Cited by 65 publications

References 33 publications

Comparison of Drosophilidae (Diptera) assemblages from two highland Araucaria Forest fragments, with and without environmental conservation policies

Comparison of Drosophilidae (Diptera) assemblages from two highland Araucaria Forest fragments, with and without environmental conservation policies

ThePREDICTSdatabase: a global database of how local terrestrial biodiversity responds to human impacts

The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

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