scholarly journals Diversity, distribution and habitat requirements of aquatic insect communities in tropical mountain streams (South-eastern Guinea, West Africa)

2016 ◽  
Vol 52 ◽  
pp. 285-300
Author(s):  
Oi Edia Edia ◽  
Emmanuel Castella ◽  
Mexmin Koffi Konan ◽  
Jean-Luc Gattolliat ◽  
Allassane Ouattara
Keyword(s):  
West Africa ◽  
Aquatic Insect ◽  
Mountain Streams ◽  
Habitat Requirements ◽  
Insect Communities ◽  
South Eastern ◽  
Tropical Mountain

Spatial and seasonal variability of emergent aquatic insects and nearshore spiders in a subtropical estuary

2019 ◽  
Vol 70 (4) ◽  
pp. 541 ◽  
Author(s):  
Martha J. Zapata ◽  
S. Mažeika P. Sullivan
Keyword(s):  
Aquatic Insects ◽  
High Salinity ◽  
Aquatic Insect ◽  
Freshwater Ecosystems ◽  
Dispersal Ability ◽  
Insect Community ◽  
Insect Communities ◽  
Low Salinity ◽  
Subtropical Estuary ◽  
Adult Aquatic Insects

Variability in the density and distribution of adult aquatic insects is an important factor mediating aquatic-to-terrestrial nutritional subsidies in freshwater ecosystems, yet less is understood about insect-facilitated subsidy dynamics in estuaries. We surveyed emergent (i.e. adult) aquatic insects and nearshore orb-weaving spiders of the families Tetragnathidae and Araneidae in a subtropical estuary of Florida (USA). Emergent insect community composition varied seasonally and spatially; densities were lower at high- than low-salinity sites. At high-salinity sites, emergent insects exhibited lower dispersal ability and a higher prevalence of univoltinism than low- and mid-salinity assemblages. Orb-weaving spider density most strongly tracked emergent insect density rates at low- and mid-salinity sites. Tetragnatha body condition was 96% higher at high-salinity sites than at low-salinity sites. Our findings contribute to our understanding of aquatic insect communities in estuarine ecosystems and indicate that aquatic insects may provide important nutritional subsidies to riparian consumers despite their depressed abundance and diversity compared with freshwater ecosystems.

Partitioning and drivers of aquatic-insect beta diversity in mountain streams

2021 ◽  
Author(s):  
Pitágoras da Conceição Bispo ◽  
Ciro C. Zanini Branco ◽  
Marcos Carneiro Novaes ◽  
Lucas S. M. Costa ◽  
Elisa Yokoyama ◽  
...  
Keyword(s):  
Beta Diversity ◽  
Aquatic Insect ◽  
Mountain Streams

Trait patterns of aquatic insects across gradients of flow-related factors: a multivariate analysis of Canadian national data

2008 ◽  
Vol 65 (4) ◽  
pp. 670-680 ◽  
Author(s):  
Nelli Horrigan ◽  
Donald J Baird
Keyword(s):  
Dissolved Oxygen ◽  
Large Scale ◽  
Aquatic Insect ◽  
Adult Life ◽  
Taxonomic Composition ◽  
Medium Size ◽  
Insect Communities ◽  
Related Factors ◽  
Adult Life Span ◽  
Consistent Manner

Large-scale comparisons of aquatic bioassessment metrics based on taxonomic composition are currently constrained by the biogeographic limitations of taxon occurrence. The use of species trait patterns offers a possibility to overcome this constraint. We examine the assertion that the trait composition of aquatic insect communities changes in a consistent manner along similar environmental disturbance gradients by evaluating relationships between traits and three flow-related variables (velocity, water temperature, and dissolved oxygen) in 13 independently collected Canadian data sets. Certain trait states such as low crawling rate, common occurrence in drift, short adult life span, erosional rheophily, medium size at maturity, and cold or cool thermal preference were consistently sensitive to all three flow-related factors, velocity in particular, despite biogeographic differences in faunal composition. Trait modalities exhibiting the highest mean correlation with velocity, temperature, and dissolved oxygen were identified, and the potential confounding effect of trait “syndromes” was addressed by restricting the selection of flow-sensitive traits to those with high evolutionary lability. The results of the study provide a basis for the future development of flow bioassessment metrics at the national Canadian scale and potentially at the international scale.

Phytotelmata: Terrestrial Plants as Hosts for Aquatic Insect Communities

10.2307/4551 ◽  
1984 ◽  
Vol 53 (2) ◽  
pp. 698 ◽  
Author(s):  
B. J. Finlay ◽  
J. H. Frank ◽  
L. P. Lounibos
Keyword(s):  
Aquatic Insect ◽  
Terrestrial Plants ◽  
Insect Communities

Seasonal diversity in aquatic insect communities in an all-year stream system

Hydrobiologia ◽  
1977 ◽  
Vol 52 (2-3) ◽  
pp. 143-151 ◽  
Author(s):  
C. N. Slobodchikoff ◽  
Janice E. Parrott
Keyword(s):  
Aquatic Insect ◽  
Insect Communities ◽  
Stream System ◽  
Seasonal Diversity

scholarly journals IMPORTÂNCIA DE MICROHABITATS NA OCORRÊNCIA DE GÊNEROS DE EPHEMEROPTERA E TRICHOPTERA EM UMA ILHA NO RIO XINGU

2021 ◽  
Vol 25 (03) ◽  
pp. 662-673
Author(s):  
Samantha Ribeiro da Silva ◽  
◽  
Ana Luiza-Andrade ◽  
Suyana Karla Ferreira da Silva ◽  
Tamyris Pegado de Souza e Silva ◽  
...  
Keyword(s):  
Fine Particles ◽  
Food Resource ◽  
Aquatic Insect ◽  
Coastal Region ◽  
Small Island ◽  
Coastal Environments ◽  
Food Groups ◽  
Insect Communities ◽  
Main Food ◽  
Coastal Margin

IMPORTANCE OF MICROHABITATS IN THE OCCURRENCE OF EPHEMEROPTERA AND TRICHOPTERA SPECIES IN AN ISLAND IN RIO XINGU. This work described the abundance, richness and composition of genera and the functional food groups (GFA) of Ephemeroptera and Trichoptera (ET), in different microhabitats of a fluvial island, in Volta Grande of the Xingu River, Brazilian Amazon. Aquatic insects were collected from 30 samples located in puddles situated in the interior of the island (rocks as substrate); and another 30 samples located in the coastal margin of the island (pebble as substrate). The different facets of diversity (abundance, richness and composition of genera and GFA) were compared between puddle samples with rock substrate and those from the coastal region with pebble substrate. In total, 56 individuals were collected, distributed in 15 genera ET. The greatest estimated genera richness and the largest number of individuals occurred in the rocks of the puddle environments. The composition of genera differed between the rocks in the puddle environments and the pebbles in the coastal environments, with the community of the latter being more homogeneous. There were more scraper organisms distributed predominantly in the rocks of the puddle environments and filtering organisms arranged predominantly in the pebbles of the coastal environments. The distribution of scrapers is related to the availability of food, since the island has little vegetation and the light on the rocks is favorable for colonization by biofilm, its main food resource. In the coastal region, the greater distribution of filters is related to the greater number of fine particles suspended in water, its main food resource. The results demonstrate that even in spatially close environments, such as on a small island, differences in the availability of food resources in different microhabitats can influence the distribution in multiple facets of diversity. Thus, even in dynamic environments such as large rivers, maintaining microhabitats is important for aquatic insect communities.

Sign in / Sign up

Export Citation Format

Share Document