This study assessed invertebrate response to disturbances in the riparian zone of the Wewe river, using geometric series, rarefaction, Renyi diversity, and CCA models. We sampled 2,077 individuals (dry season) and 2,282 (wet season) belonging to 16 invertebrate orders. The severely disturbed habitat registered the highest individuals ( = 1,999), while the least was the moderately disturbed habitat ( = 740). Seasonal assemblages were not significantly different. Fire, farming, tree felling, and erosion explained 66.8% and 60.55% in the dry and wet seasons, respectively, of variations in invertebrate assemblages. This suggests threats to the invertebrate community and the riparian ecosystem health by anthropogenic interventions.
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http://dx.doi.org/10.1515/biol-2020-0037 | DOI Listing |
Glob Chang Biol
January 2025
School of Biological Sciences, The University of Hong Kong, Hong Kong, China.
Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.
View Article and Find Full Text PDFSci Rep
January 2025
Grupo de Investigación Ecología y Evolución en los Trópicos-EETrop, Universidad de Las Américas, Quito, Ecuador.
Forecasting insect responses to environmental variables at local and global spatial scales remains a crucial task in Ecology. However, predicting future responses requires long-term datasets, which are rarely available for insects, especially in the tropics. From 2002 to 2017, we recorded male ant incidence of 155 ant species at ten malaise traps on the 50-ha ForestGEO plot in Barro Colorado Island.
View Article and Find Full Text PDFEnviron Monit Assess
December 2024
School of the Sea, Science and Technology, Universidade Do Vale Do Itajaí (Univali, Rua Uruguai, 458, Itajaí, SC, CP 360, Brazil.
Small-scale shrimp trawling is crucial for the economy and culture of coastal communities worldwide, providing several ecosystem services. However, bottom trawling is well-known for its negative impacts on habitat structure and marine communities. Bycatch, or the accidental capture of non-target species during fishing, can offer valuable insights into the composition and variation of fish assemblages.
View Article and Find Full Text PDFSci Rep
December 2024
Institute of Marine Sciences, National Research Council (CNR-ISMAR), Bologna, Italy.
Anthropogenic and climate factors are increasingly affecting the composition and functions of many marine biogenic reefs globally, leading to a decline in associated biodiversity and ecosystem services. Once dominant ecological component, modern oyster reefs in the Mediterranean and Black Sea and the Atlantic Ocean have already been profoundly altered by overharvesting, habitat loss and the introduction of alien species. Far less known are deep-water oyster reefs, which can however form substantial biogenic structures below 30 m depth.
View Article and Find Full Text PDFSci Total Environ
December 2024
Department of Biology (DBI), State University of Maringá, Av. Colombo, 5790 - Zona 7, Maringá, PR 87020-900, Brazil; Graduate Program in Ecology of Inland Water Ecosystems (PEA), State University of Maringá (UEM), Av. Colombo, 5790 - Zona 7, Maringá, PR 87020-900, Brazil; Nucleus of Limnology, Ictiology and Aquaculture (NUPELIA) of State University of Maringá (UEM). Av. Colombo, 5790 - Zona 7, Maringá, PR 87020-900, Brazil; Graduate Program Comparate Biology (PGB), State University of Maringá (UEM), Av. Colombo, 5790 - Zona 7, Maringá, PR 87020-900, Brazil.
Floodplains function as global hotspots for the natural production of methane. Some of this methane can be oxidized by methanotrophic bacteria and assimilated into their biomass before reaching the atmosphere. Consequently, aquatic invertebrates that feed on methanotrophic bacteria may transfer methane-derived carbon to higher trophic levels in the aquatic food chain.
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