NDLI: Inter- and intra-guild patterns of food resource utilization by chironomid larvae in a subtropical coastal lagoon

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Inter- and intra-guild patterns of food resource utilization by chironomid larvae in a subtropical coastal lagoon

Content Provider	Springer Nature Link
Author	Lemes Silva, Aurea Luiza Pagliosa, Paulo Roberto Petrucio, Mauricio Mello
Copyright Year	2013
Abstract	Studies on food preferences provide background information on the mechanisms that allow coexistence and resource exploitation among several species within the same system. In this study, we aimed to identify the trophic guild of chironomid larvae based on their feeding habits using gut content analysis. Larvae were collected using an Eckman-Birge grab in many areas of the subtropical Peri lagoon (southern Brazil) seasonally between March 2008 and April 2009. Null models were used to determine the frequency of co-occurrence of food items in the diets of chironomid larvae and to determine the frequency of co-occurrence of species belonging to a particular guild. Significant differences (seasonal or annual) were observed in patterns of co-occurrence of food items in the larval diets. Animal remains had a lower co-occurrence than would be expected as a result of chance, and plant items had a co-occurrence greater than would be expected by chance. The c scores for co-occurrence of species belonging to both predator and herbivore guilds revealed a higher co-occurrence of species than would be expected by chance. We suggest that the factors responsible for the results of this study were resource partitioning among species, habitat heterogeneity and resource availability in the environment.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	14398621
Journal	Limnology
Volume Number	15
Issue Number	1
e-ISSN	1439863X
Language	English
Publisher	Springer Japan
Publisher Date	2013-05-16
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chironomidae Co-occurrence Feeding habitat Coastal lagoons Subtropical region Ecology Environment Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Water Science and Technology

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