干旱区生态环境知识资源中心(Arid): Dipteran assemblages as functional indicators of extreme droughts

Arid

DOI	10.1016/j.jaridenv.2019.01.014
	Dipteran assemblages as functional indicators of extreme droughts
	Jovem-Azevedo, D.1; Bezerra-Neto, J. F.2; Azevedo, E. L.3; Gomes, W. I. A.4; Molozzi, J.5; Feio, M. J.6
通讯作者	Jovem-Azevedo, D.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	164 页码:12-22
英文摘要	In the present study, we assessed the potential of dipterans as functional indicators of extreme drought. Dipteran assemblages were sampled four times in 2014 and 2015 at 141 sites, from six reservoirs located in two semi-arid watersheds. Our results showed that dipteran functional traits changed over an extreme drought period (p < 0.0001) and were associated with different environmental variables. Body size, feeding group, feeding strategy, preferential habit and tubule positions changed in dominance over time. Small engulfers were more abundant in the driest period and significantly associated with water quality variables, such as chlorophyll-a, turbidity and total dissolved solids. In the driest months, negative correlations were found between smaller organisms, presence of hemoglobin, short pseudopods and sprawler habit and water and habitat parameters (e.g., organic matter). We found that during the study period, there was a decrease in functional richness and increase in functional evenness in communities, indicating functional loss and a greater biotic homogenization. Therefore, future management plans of reservoirs and other freshwater ecosystems, especially in areas with frequent drought events (such as arid and semi-arid areas), should consider the importance of maintaining a certain water quantity to guarantee ecosystem functioning during the dry season.
英文关键词	Semi-arid Reservoirs Macroinvertebrates Functional richness Functional evenness Environmental degradation
类型	Article
语种	英语
国家	Brazil ; Portugal
收录类别	SCI-E
WOS记录号	WOS:000462416300003
WOS关键词	SPECIES TRAITS ; DIVERSITY ; COMMUNITIES ; RESERVOIRS ; RESPONSES ; STREAMS ; RIVERS ; LARVAE
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216733
作者单位	1.Univ Fed Minas Gerais, Programa Posgrad Ecol Conservacao & Manejo Vida S, Ave Presidente Antonio Carlos 6627,Sala 318, BR-31270910 Belo Horizonte, MG, Brazil; 2.Univ Fed Minas Gerais, Programa Posgrad Ecol Conservacao & Manejo Vida S, Dept Biol Geral, Ave Presidente Antonio Carlos 6627,Sala 318, BR-31270910 Belo Horizonte, MG, Brazil; 3.Inst Fed Educ Ciencia & Tecnol Paraiba, Unidade Formacao Geral, Campus Cajazeiras,Rua Jose Antonio da Silva 300, BR-58900000 Cajazeiras, Paraiba, Brazil; 4.Univ Estadual Paraiba, Programa Posgrad Ciencia & Tecnol Ambiental, Rua Juvencio Arruda S-N,Campus Univ, BR-58429600 Campina Grande, Paraiba, Brazil; 5.Univ Estadual Paraiba, Programa Posgrad Ecol & Conservacao, Dept Biol, Rua Baraunas 351,Complexo Tres Marias, BR-58429500 Campina Grande, Paraiba, Brazil; 6.Univ Coimbra, Fac Sci & Technol, Dept Life Sci, MARE Marine & Environm Sci Ctr, Coimbra, Portugal
推荐引用方式 GB/T 7714	Jovem-Azevedo, D.,Bezerra-Neto, J. F.,Azevedo, E. L.,et al. Dipteran assemblages as functional indicators of extreme droughts[J],2019,164:12-22.
APA	Jovem-Azevedo, D.,Bezerra-Neto, J. F.,Azevedo, E. L.,Gomes, W. I. A.,Molozzi, J.,&Feio, M. J..(2019).Dipteran assemblages as functional indicators of extreme droughts.JOURNAL OF ARID ENVIRONMENTS,164,12-22.
MLA	Jovem-Azevedo, D.,et al."Dipteran assemblages as functional indicators of extreme droughts".JOURNAL OF ARID ENVIRONMENTS 164(2019):12-22.