Tropical headwater streams and the role of non-native species on fish assemblage's diversity

被引：3

作者：

Santos, Bruno R. B. ^{[1
]}

Teresa, Fabricio B. ^{[1
]}

Borges, Pedro P. P. ^{[1
]}

Casatti, Lilian ^{[2
]}

Tejerina-Garro, Francisco L. L. ^{[3
,4
]}

Pompeu, Paulo S. S. ^{[5
]}

Benedito, Evanilde ^{[6
]}

Carvalho, Fernando R. R. ^{[7
]}

Cetra, Mauricio ^{[8
]}

Dias, Murilo S. S. ^{[9
]}

Suarez, Yzel R. R. ^{[10
]}

Santos, Thiago ^{[11
]}

Brejao, Gabriel ^{[12
]}

Carvalho, Rodrigo A. A. ^{[1
]}

机构：

[1] Univ Estadual Goias, Lab Biogeog & Ecol Aquat, Programa Posgrad Recursos Nat Cerrado RENAC, Campus Cent, BR-75132400 Anapolis, GO, Brazil

[2] UNESP, Dept Ciencias Biol, Sao Jose Do Rio Preto, SP, Brazil

[3] Pontificia Univ Catolica Goias, Escola Ciencias Med & Vida, Goiania, GO, Brazil

[4] UniEVANGEL, Lab Biodiversidade, PPSTMA, Anapolis, GO, Brazil

[5] Univ Fed Lavras, Lab Ecol & Conservacao Peixes, Lavras, MG, Brazil

[6] Univ Estadual Maringa, Ctr Ciencias Biol, Dept Biol, NUPELIA,PEA,PGB, Maringa, Parana, Brazil

[7] Univ Fed Mato Grosso Do Sul, Lab Ictiol, Colecao Ictiol Tres Lagoas CITL, Campus Tres Lagoas, Tres Lagoas, MS, Brazil

[8] Univ Fed Sao Carlos, Dept Ciencias Ambientais DCA, Sao Paulo, Brazil

[9] Univ Brasilia, Dept Ecol, Inst Ciencias Biol, Brasilia, Brazil

[10] Univ Estadual Mato Grosso Do Sul, Ctr Integrado Analise & Monitoramento Ambiental CI, Campo Grande, MS, Brazil

[11] Univ Fed Vales Jequitinhonha & Mucuri, Programa Posgrad Biol Anim, Diamantina, MG, Brazil

[12] Univ Lancaster, Lancaster Environm Ctr, Lancaster, England

来源：

BIOLOGICAL INVASIONS | 2023年 / 25卷 / 10期

基金：

巴西圣保罗研究基金会;

关键词：

Fish ecology; Functional diversity; Species richness; Taxonomic diversity; Upper Parana Ecoregion; FRESH-WATER FISH; FUNCTIONAL DIVERSITY; CONSERVATION; HOMOGENIZATION; BIODIVERSITY; VARIABLES; PATTERNS; TRAITS; RIVER; COMMUNITIES;

D O I：

10.1007/s10530-023-03093-5

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Non-native species cause several impacts on freshwater biodiversity, but studies focusing on the Neotropical stream's biota are still incipient. We used a data set of 586 headwater stream's fish assemblages from the Brazilian Upper Parana ecoregion to test whether the presence/absence of non-native species affect: species richness (S), functional diversity (MPD) and taxonomic diversity (Delta+). We compared diversity patterns of fish assemblages formed only by native species against those of assemblages formed by native and non-native species (Scenario 1); then, we removed non-native species from their original assemblages and recalculated their diversity values to compare them with those of fish assemblages formed only by native species again (Scenario 2). We also investigated: (1) whether non-native's fish assemblages are associated with land use, topographic and watercourse connectivity variables; (2) fish ecological traits-environment relationship. In Scenario 1, S was higher in assemblages with the presence of non-native species, while in Scenario 2, both S and MPD were higher in assemblages where non-native species were removed. Non-native species were not directly related to land use, topographic or connectivity variables and most of them had a similar response to the environment when compared with native species. Findings show that non-native fish species are related to high-rich assemblages in headwaters, and they increase species richness and the functional redundancy of assemblages, decreasing functional diversity. Moreover, in most cases, native and non-native species seem to respond similarly to the environmental influence on their occurrence.

引用

页码：3103 / 3118

页数：16