Results 81 to 90 of about 20,927 (224)

Oligochaeta (Annelida: Clitellata) associated to aquatic macrophytes in Brazil

open access: yesBiotemas, 2016
Oligochaeta are still characterized as a poorly studied group among the aquatic macroinvertebrates and few studies about their ecology were conducted in Brazil.
Nathalie Aparecida de Oliveira Sanches   +4 more
doaj   +1 more source

Avaliando a interrupção da conectividade longitudinal em assembleias de macroinvertebrados em um rio semi-árido [PDF]

open access: yes, 2017
Aim: Our aim in this study was evaluate the effects of flow regulation for irrigation on the macroinvertebrate assemblages in a semiarid river. Methods:We sampled two reaches in Dulce River; one placed upstream a weir that diverts flow into a network of ...
Diodato, Maria Estela Liliana   +3 more
core   +1 more source

Resilience of riparian spiders to floods: evidence from a mesocosm study

open access: yesInsect Conservation and Diversity, Volume 19, Issue 2, Page 393-403, March 2026.
Mesocosm experiment to assess the impact of flood duration on flood‐naïve riparian spider communities. In May, spider richness decreased with flood duration, while in June, flood duration increased abundance, richness and promoted wetland specialists. Flood‐naïve riparian spiders unexpectedly appear highly resilient to flooding.
Stephane Mutel   +9 more
wiley   +1 more source

Seasonal variations of diversity and abundance of the benthic Annelida in coastal sediments of the southern Caspian Sea (Mazandaran-Sari) [PDF]

open access: yesبوم‌شناسی آبزیان, 2018
In order to investigate seasonal variation of diversity and abundance of Annelida, seasonal sediment sampling was performed on 10 stations with depths of 1, 5, 10 and 20 meters in the coastal area of Sari, Iran in 2015-2016.
Maryam Akhoundian   +2 more
doaj  

Factors affecting assemblage attributes of freshwater Oligochaeta in Neotropical shallow floodplain lakes

open access: yesActa Limnologica Brasiliensia, 2017
Aim: Identify the effects of sediment composition and water conditions on diversity, richness, evenness, density and composition of freshwater Oligochaeta in shallow floodplain lakes.
Vanessa Ernandes de Amo   +4 more
doaj   +1 more source

Hard Rock Buffet: Chemosynthetic Carbon Use and Environmental Trophic Structuring of Carbonate‐Associated Macrofauna at Southern California Methane Seeps

open access: yesMarine Ecology, Volume 47, Issue 2, March/April 2026.
ABSTRACT Diverse invertebrate communities inhabiting carbonate rocks at methane seeps may rely on a mix of local chemosynthetic production and sinking photosynthetic organic matter, with relative importance shaped by environmental conditions. We investigate the contribution of chemosynthetic carbon to macrofaunal diets at six Southern California ...
Olívia S. Pereira   +3 more
wiley   +1 more source

Effect of woodstack structure on invertebrate abundance and diversity [PDF]

open access: yes, 2013
Reduced quantities of dead wood in managed forests have resulted in a reduction in the abundance and diversity of saproxylic invertebrates to the extent that many are now considered red list species.
Anulewicz, Francese, R. J. Sands
core   +1 more source

Effects of Lateral Hydrological Connectivity on Aquatic Invertebrate Assemblages in Floodplains, Oxbow Lakes and the Main River Channel of the Savannah River, Southeastern USA

open access: yesFreshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Within river corridors, hydrological connectivity drives the local abiotic and biotic processes, shapes ecosystem functioning and promotes biodiversity. However, hydrological cycling is changing due to climate change, and drought is intensifying and becoming more frequent in many regions of the world, making it critical to understand the ...
Kelsey A. Wilbanks, Darold P. Batzer
wiley   +1 more source

Biodiversity Index value of benthic invertebrates' community in relation with variation of some environmental properties in Rivers Tigris and Diyala within Baghdad city.

open access: yesمجلة بغداد للعلوم, 2014
This study was carried out to determine the effects of some environmental variables on biodiversity index value of benthic invertebrates' community in samples that collected monthly from two adjacent sites nearby the confluence of Tigris and Diyala ...
Baghdad Science Journal
doaj   +1 more source

Cocoon viability and evidence for delayed hatching by the earthworm Lumbricus terrestris in a laboratory-based study. [PDF]

open access: yes, 2014
Clitellate Lumbricus terrestris, obtained from 5 commercial suppliers (A-E) and also field collected (F) - grassland in Preston, Lancashire, UK, were kept under controlled environmental conditions (15 °C and 24 h darkness) in a sterilised loam soil and ...
Butt, Kevin Richard   +1 more
core  

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