Invent?rio da Araneofauna de Solo (Arachnida: Araneae) em uma ?rea de Caatinga da Serra de S?o Jos?, Feira de Santana, Bahia, Brasil

Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2020-05-07T23:39:57Z No. of bitstreams: 1 Disserta??o_Gutemberg_15_08_2011.pdf: 2917431 bytes, checksum: 8e03e77fa6eff93644025e9fa6155797 (MD5) Made available in DSpace on 2020-05-07T23:39:57Z (GMT). No. of bitstreams: 1 Disserta??o_Gutemberg_15_08_2011.pdf: 2917431 bytes, checksum: 8e03e77fa6eff93644025e9fa6155797 (MD5) Previous issue date: 2011-02-18 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES In the Northeast, few studies have been carried out and, in Bahia, the vast majority of studies carried out are ecological inventories that do not emphasize the identification of spiders. In the present study, an inventory of soil spiders was carried out in an area of the semi-arid region of Bahia, in the Serra de S?o Jos?, located in the district of Maria Quit?ria, about 30 km north of the commercial center of Feira de Santana, Bahia, Brazil. The collections were carried out monthly, during one year, using 40 fall traps per collection. 1,043 spiders were collected, 486 adults and 557 young, distributed in 33 families and 71 species. The most abundant families were: Salticidae, Pholcidae, Zodariidae, Corinnidae, Ctenidae, Palpimanidae and Oonopidae. When the richness was analyzed, Salticidae was the one with the highest species richness, 13, followed by Corinnidae and Oonopidae with seven species, respectively. With regard to diversity, it was Berger-Parker Dominance (Dbp = 0.018) and Equitability J (J = 0.833) were calculated for the species found. The estimated richness for the sampled area was 90 species, based on the Jack 1 estimator, while Bootstrap estimated a richness of 80 species for the region. In assessing the species richness, it was observed that the sampled region, despite suffering from anthropic action, still maintains an expressive number of species for the locality. These results show the importance of expanding knowledge of spider diversity, especially in the semi-arid region, as it demonstrates that it is still lacking studies not only of spiders. No Nordeste, poucos estudos t?m sido realizados e, na Bahia, a grande maioria de estudos realizados s?o invent?rios ecol?gicos que n?o d?o ?nfase a identifica??o das aranhas. No presente estudo, foi realizado o invent?rio das aranhas de solo em uma ?rea do semi-?rido baiano, na Serra de S?o Jos?, localizada no distrito de Maria Quit?ria, cerca de 30 km ao norte do centro comercial de Feira de Santana, Bahia, Brasil. As coletas foram mensalmente, durante um ano, utilizando-se 40 armadilhas de queda por coleta. Foram coletadas 1.043 aranhas, sendo 486 adultos e 557 jovens, distribu?das em 33 fam?lias e 71 esp?cies. As fam?lias mais abundantes foram: Salticidae, Pholcidae, Zodariidae, Corinnidae, Ctenidae, Palpimanidae e Oonopidae. Quando analisada a riqueza, Salticidae foi a que apresentou a maior riqueza de esp?cies, 13, seguida respectivamente de Corinnidae e Oonopidae com sete esp?cies. No que diz respeito ? diversidade, foi calculada a Domin?ncia de Berger-Parker (Dbp=0,018) e Equitabilidade J (J=0,833) para as esp?cies encontradas. A riqueza estimada para a ?rea amostrada foi de 90 esp?cies, baseada no estimador Jack 1, enquanto que o Bootstrap estimou uma riqueza de 80 esp?cies para a regi?o. Na avalia??o da riqueza de esp?cies, observou-se que a regi?o amostrada, apesar de sofrer com a a??o antr?pica, ainda mant?m um n?mero expressivo de esp?cies para a localidade. Estes resultados evidenciam a import?ncia da amplia??o do conhecimento da diversidade de aranhas, principalmente da regi?o do semi-?rido, pois demonstra que ainda ? carente de estudos n?o s? de aranhas.