Spatiotemporal distribution of invertebrate fauna in a mesovoid shallow substratum in iron formations

被引:1
|
作者
Dornellas, Ligia Maria Saback Moreira [1 ,2 ]
da Silva, Pedro Giovani [1 ,2 ]
Bichuette, Maria Elina [3 ]
Auler, Augusto S. [2 ]
Culver, David C. [4 ]
Pipan, Tanja [5 ]
Pires, Lorena Oliveira [6 ]
Neves, Frederico de Siqueira [1 ]
机构
[1] Univ Fed Minas Gerais, Programa Pos Grad Ecol, Conservacao & Manejo Vida Silvestre, Inst Ciencias Biol, BR-31270901 Belo Horizonte, MG, Brazil
[2] Inst Carste Carste Ciencia Ambiental, BR-31275090 Belo Horizonte, MG, Brazil
[3] Univ Fed Sao Carlos, Dept Ecol & Biol Evolut, Lab Estudos Subterraneos, BR-13565905 Sao Carlos, SP, Brazil
[4] Amer Univ, Dept Environm Sci, Washington, DC 20016 USA
[5] Slovenian Acad Sci & Arts, Karst Res Inst, Res Ctr, Postojna 6230, Slovenia
[6] Anglo Amer Minerio Ferro Brasil, BR-30360740 Belo Horizonte, MG, Brazil
关键词
Iron formations; MSS; Southern Espinhaco region; Troglobiotic; Beta diversity; Connectivity; IRONSTONE OUTCROPS; BETA DIVERSITY; CAVE; COMMUNITIES; HABITATS; EXTRAPOLATION; CONSERVATION; BIODIVERSITY; RAREFACTION; TEMPERATURE;
D O I
10.1007/s10531-024-02801-4
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Iron Formations (IF) are among the most threatened environments due to the extensive mining activities. Mesovoid Shallow Substratum (MSS) in IF represents a poorly known subterranean environment and evaluating its fauna has the potential for expanding knowledge about the distribution of troglobiotic populations. We evaluated the spatiotemporal distribution of the subterranean fauna in the MSS of IF in Brazil. We sampled the MSS invertebrate fauna and described the community patterns of troglobiotic and non-troglobiotic species. A total of 22,821 individuals and 276 morphospecies belonging to two phyla were found: Annelida and Arthropoda. Acariformes, Diptera, Hymenoptera, Blattodea, and Collembola represented 92.2% of the individuals sampled. Nine troglobiotic morphospecies belonging to four groups were sampled: Araneae (1), Entomobryomorpha (6), Poduromorpha (1), and Pseudoscorpiones (1). We found a high compositional dissimilarity of troglobiotic and non-troglobiotic species in terms of spatial beta-diversity (among MSS sites) and temporal beta-diversity (among months). The observed spatial beta-diversity of troglobiotic species sampled in the MSS is greater than that of non-troglobiotic species. The temporal variation is similar for both groups. The richness difference component contributed more to spatial and temporal beta-diversity for troglobiotic species, while higher replacement values for non-troglobiotic species were observed. Average values of temporal beta-diversity and the replacement component were greater for non-troglobiotic than for troglobiotic species, while the richness difference component had an opposite pattern. The spatiotemporal beta-diversity patterns suggest a medium-to-low connectivity of invertebrate populations that colonize the MSS, favoring the adoption of strategies for conserving broader areas in the context of IF.
引用
收藏
页码:1351 / 1371
页数:21
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