Results 21 to 30 of about 859 (114)
Invertebrates on isolated peaks in the uKhahlamba-Drakensberg Park World Heritage Site, South Africa
A survey to document and describe the alpine flora and various focal faunal taxa on six isolated inselberg-like peaks (total area of 31.9 ha), all 3000 m or higher, located in the uKhahlamba-Drakensberg Park World Heritage Site, South Africa, was ...
Adrian J. Armstrong, Robert F. Brand
doaj
Potential Impacts of Low Flows on Fish Foodscapes and Production in a Braided River
ABSTRACT Changes in river discharge affect the physical composition and connectivity of habitats which, in turn, may shape the spatial distribution of fish food abundance, accessibility and quality—the ‘foodscape’—of river ecosystems. However, the influence of river flows on fish foodscapes has received very little attention from scientists. We studied
Rick J. Stoffels +11 more
wiley +1 more source
Lessons Learnt From Long‐Term Monitoring of River Restoration in an English Chalk Stream
ABSTRACT River restoration can be difficult to evaluate due to insufficient monitoring over timescales too short to adequately capture physical and ecological response. To better understand restoration outcomes, this study quantified changes in physical habitat (depth, velocity, substrate composition) and macroinvertebrates at two restoration projects ...
Lewis A. Dolman +2 more
wiley +1 more source
Urban stormwater ponds support pollution‐tolerant diatom and macroinvertebrate assemblages that are shaped more by local water quality, contaminants, and habitat features than by surrounding land use. Integrating biological monitoring can better inform stormwater management and urban biodiversity planning.
Gab Izma +5 more
wiley +1 more source
Quantitative and qualitative composition of benthic invertebrate communities was studied during the period from January to December2012 at four stations that were selected on the Tigris River at Baghdad Province. One of the stations S2 located near Al-
Muhanned Remzi Nashaat +3 more
doaj
Climate Warming Drives Northward Contraction and Genetic erosion in a Cold‐Adapted Soil Worm Species
ABSTRACT Aim Climate‐driven range fluctuations since the Pleistocene have repeatedly reshaped species distributions and population structures, with lasting consequences for genetic diversity. Contemporary warming causes similar pressures, yet most work emphasizes range shifts and gives less attention to genetic outcomes.
Juanjuan Chen +7 more
wiley +1 more source
A colonização de invertebrados durante o período de 56 dias de decomposição de duas espécies de plantas aquáticas (Eichhornia azurea e Polygonum ferrugineum) foi investigada para determinar o papel de macroinvertebrados no processo de fragmentação da ...
Roger Paulo Mormul +4 more
doaj
ABSTRACT Low‐tech process‐based stream restoration (LTPBR) is increasingly implemented following wildfire, underscoring the need to evaluate restoration outcomes in burned catchments. To help address this need, we measured abiotic and biotic characteristics of a reach that received LTPBR, an untreated reach, and a reach with relict beaver activity that
Kimberly A. Nichter +5 more
wiley +1 more source
Colonisation of leaf litter by aquatic invertebrates in an Atlantic Forest stream
Riparian vegetation along streams in the Atlantic Forest in Brazil contributes to the formation of a highly heterogeneous leaf litter in streambeds. To investigate the structure and composition of the aquatic invertebrate community during the process of ...
VC. Oliveira, EA. Gonçalves, RG. Alves
doaj +1 more source
ABSTRACT Ditches are essential elements of the agricultural landscape because of their role as habitat or refuge for aquatic species, especially in homogenized and intensively cultivated areas. However, data on the biodiversity associated with agricultural ditches, and its variation over time, are underrepresented in ecological research.
Michela Rappocciolo +5 more
wiley +1 more source

