scholarly journals Community Structure and Zonation of Antarctic Benthic Invertebrates

2017 ◽  
Author(s):  
Dorota Szuta
Keyword(s):  
Community Structure ◽  
Benthic Invertebrates

scholarly journals Diversity and microhabitat use of benthic invertebrates in an urban forest stream (Southeastern Brazil)

2021 ◽  
Vol 111 ◽  
Author(s):  
Vitor Manuel B. Ferreira ◽  
Nathália de O. Paiva ◽  
Bruno E. Soares ◽  
Maíra Moraes
Keyword(s):  
Community Structure ◽  
Benthic Invertebrates ◽  
Urban Forest ◽  
Repeated Measure ◽  
Southeastern Brazil ◽  
Microhabitat Use ◽  
Taxonomic Richness ◽  
Rarefaction Curves ◽  
Forest Stream ◽  
Structure Indices

ABSTRACT This work aimed to assess the diversity and microhabitat use of benthic invertebrates in an urban forest stream in southeastern Brazilian region. The invertebrates were sampled in a headwater stream, located at the Tijuca Forest, Rio de Janeiro. Three types of microhabitats were sampled (litter, sand and stone) using a Surber sampler. Specimens were identified to the family-level and rarefaction curves were constructed for the total sampling and for each type of microhabitat. Community structure indices (abundance, taxonomic richness, diversity, and dominance) were calculated for each microhabitat. Differences among indices were tested through a repeated measure ANOVA, and differences among microhabitatsʼ composition through a PerMANOVA. A total of 9,800 specimens were registered in which Chironomidae was the most abundant. The rarefaction curves did not reach the asymptote. Community structure indices exhibited differences (RM ANOVA; p < 0.001), as well as microhabitats’ composition (PerMANOVA; p < 0.001). Abundance and taxonomic richness were the highest in litter, diversity was higher both in litter and stone, and sand had the highest dominance. Results highlighted that the variety of microhabitats may enhance local diversity and that the differences in resources availability of each type of microhabitat determine the distribution of these invertebrates.

DYNAMICS OF FINE BENTHIC ORGANIC MATTER AND ITS EFFECT ON COMMUNITY STRUCTURE OF BENTHIC INVERTEBRATES IN TAMA RIVER

2006 ◽  
Vol 62 (1) ◽  
pp. 74-84
Author(s):  
Akihiko HOSOMI ◽  
Chihiro YOSHIMURA ◽  
Fumiyuki NAKAJIMA ◽  
Hiroaki FURUMAI
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Benthic Invertebrates ◽  
Benthic Organic Matter

scholarly journals Community structure of benthic invertebrates in the Allipén River basin, North Patagonia, Araucania region (38º S, Chile)

2022 ◽  
Vol 82 ◽  
Author(s):  
K. Solis-Lufí ◽  
M. J. Suazo ◽  
M. E. Avila-Salem ◽  
C. Maldonado-Murúa ◽  
H. Aponte ◽  
...  
Keyword(s):  
Community Structure ◽  
Benthic Macroinvertebrates ◽  
Benthic Invertebrates ◽  
Biological Indicators ◽  
Null Models ◽  
Statistical Tool ◽  
Biogeographic Pattern ◽  
Low Diversity ◽  
Ecological Patterns ◽  
Fluvial Ecosystem

Abstract One of the biological indicators most used to determine the health of a fluvial ecosystem are the benthic macroinvertebrates. The presence of recurrent species in a wide gradient of latitudes, dominates the biogeographic pattern of the benthic macroinvertebrates in Chilean fresh waters, nevertheless the knowledge on the communitarian ecology of these in the Chilean rivers continues to be scarce. Null models became a powerful statistical tool for describing the ecological mechanisms that drive the structure of an ecological community and the underlying patterns of diversity. The objective of this study was to determine the community structure of benthic invertebrates in the Allipén River by describing their composition, richness and abundance of species through richness models and null models based on presence/absence. The results reveal a high family richness and low diversity, three phyla, five classes, 11 orders and 28 families were identified in the study area during the four seasons of the year. The Arthropoda phylum was the most representative in abundance and richness. Regarding to richness, Trichoptera (7 families) and Diptera (6 families) followed by Ephemeroptera (3 families) were the orders that showed the greatest diversity of families, however, a low diversity with a H’≤ 1.5 nit was registered in the study area. We demonstrated through the null models, the randomization in the species associations corresponding to the three analyzed sites. The information provided here contributes to the understanding of the ecological patterns of the invertebrate communities in the Allipén River, establishing the basis for more complex ecological studies.

scholarly journals Effects of predators and herbicides on community structure of benthic invertebrates in paddy fields around the Chikuma River

2009 ◽  
Vol 70 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Tetsuya TSURUTA ◽  
Tsubasa TADA ◽  
Nobuyoshi KOTERA ◽  
Izumi AKAGAWA ◽  
Kei′ichiro IGUCHI
Keyword(s):  
Community Structure ◽  
Benthic Invertebrates ◽  
Paddy Fields
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