NDLI: Dispersal mode and flooding regime as drivers of benthic metacommunity structure in a Neotropical floodplain

Content Provider	Springer Nature Link
Author	Petsch, Danielle Katharine Pinha, Gisele Daiane Takeda, Alice Michiyo
Copyright Year	2016
Abstract	The metacommunity approach emerged with the interest in investigating how local and regional processes interact to determine community structure. However, species distribution may differ according to biological features (e.g., dispersal mode) or system connectivity. We investigated the distribution patterns and the importance of environmental and spatial variables for benthic invertebrate metacommunity structures in a Neotropical floodplain according to hydrological periods (flood and drought) and dispersal modes (active or passive). We sampled 18 lakes during flood and drought periods in 2011. In both hydrological periods, we found a Clementsian pattern for active dispersers, with environment as the main structuring factor. The high environmental heterogeneity of this floodplain is an important factor providing high availability of favorable habitats for the establishment of active dispersers. Passive dispersers were randomly distributed in both hydrological periods. The importance of only spatial factors during the drought may indicate a restricted dispersal by inability of tracking environmental gradients. We emphasize that understanding biological community determinants could rely on trait-based analysis (i.e., dispersal mode) and complementary approaches (i.e., variance partitioning, and metacommunity structure), considering their variations over time.
Starting Page	131
Ending Page	141
Page Count	11
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	788
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-09-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dispersal Random Clementsian pattern Flood Drought Freshwater & Marine Ecology Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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