Results 11 to 20 of about 3,198,681 (137)

Keystone communities can rescue aquatic metacommunities influenced by pesticide contamination. [PDF]

open access: yesEcol Appl
Abstract Pesticide contamination in freshwater habitats is a major global issue, affecting water quality, biodiversity, and ecosystem services. Uncontaminated habitats embedded in agricultural landscapes might act as keystone communities, with the ability to restore diversity and ecological processes in contaminated sites through dispersal.
Vieira CB   +11 more
europepmc   +2 more sources

From diagnosis to conservation: the state of the art of biodiversity conservation in the BIOTA/FAPESP program [PDF]

open access: yes, 2006
O principal objetivo deste estudo foi de avaliar a contribuição do Programa BIOTA/FAPESP, um dos maiores programas do Brasil voltados para o estudo da biodiversidade, em questões relacionadas com a conservação da biodiversidade, em particular no ...
Metzger, Jean Paul   +4 more
core   +1 more source

Photoprotective potential of gadusol against ultraviolet B radiation in melanocytes

open access: yesPhotochemistry and Photobiology, EarlyView.
Gadusol protects melanocytes from ultraviolet B (UVB)‐induced damage without cytotoxicity. Abstract The increasing incidence of skin cancer, including melanoma, combined with the need for ultraviolet (UV) filters that are safe for human health and marine ecosystems, is driving the search for new photoprotective agents.
Andressa Mai Matsumoto   +8 more
wiley   +1 more source

Fragmentation by Dams and Habitat Quality Affect Body Condition of a Small Characid in a Neotropical System

open access: yesEcology of Freshwater Fish, Volume 35, Issue 4, October 2026.
ABSTRACT The structure of stream networks naturally fragments freshwater habitats, but this complexity is increasingly intensified by dams and reservoirs. How anthropogenic fragmentation interacts with natural isolation gradients to affect fish populations remains poorly understood.
Ana Carolina Daldegan   +12 more
wiley   +1 more source

Long‐Term Changes in Planktonic Ciliate Beta Diversity Under Contrasting Hydrological Regulation in A River–Floodplain System

open access: yesEnvironmental Microbiology, Volume 28, Issue 9, September 2026.
Hydrological regulation by dams reshaped ciliate biodiversity over 14 years, increasing temporal compositional change and ecological uniqueness while accelerating declines in richness and density. These results highlight flood‐pulse dynamics as a fundamental mechanism sustaining biodiversity and ecological integrity in river‐floodplain ecosystems ...
Yasmin Rodrigues de Souza   +7 more
wiley   +1 more source

Caught Between Macrophytes and Human Impact: Zooplankton Facing Multiple Stressors in Tropical Waters

open access: yesAustral Ecology, Volume 51, Issue 9, September 2026.
ABSTRACT Tropical freshwater systems host diverse and functionally important zooplankton communities that are increasingly threatened by multiple stressors. Here, we assessed how land‐use disturbance, local environmental conditions and macrophyte structure influence zooplankton richness, abundance and composition in Amazonian ponds and streams.
Ana Paula S. da Conceição   +4 more
wiley   +1 more source

Dissimilar response of plant and soil biota communities to long-term nutrient adition in grasslands [PDF]

open access: yes, 2009
The long-term effect of fertilizers on plant diversity and productivity is well known, but long-term effects on soil biota communities have received relatively little attention.
Geerts, R.H.E.M.   +7 more
core   +1 more source

Tell me where you flow and I will tell you who you are: basin context shapes the insect fauna of small tributaries

open access: yesOikos, Volume 2026, Issue 8, August 2026.
The traditional view of river basins as linear corridors has led to numerous studies examining the effects of stream size on aquatic communities. However, similar‐sized streams may harbor distinct faunal assemblages depending on their spatial context within the basin. Headwater tributaries (HTs) that flow into small streams, in the periphery of basins,
Silvia Vendruscolo Milesi   +1 more
wiley   +1 more source

Climate Predicts Tree Dispersal Strategies Across Brazil's Ecosystems

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 7, July 2026.
ABSTRACT Aim We investigate the distribution of dispersal modes—endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and ...
Fernanda C. Souza   +126 more
wiley   +1 more source

Lichens and their importance for the monitoring of environmental changes in Southern Africa : with special reference to soil-inhabiting lichens. [PDF]

open access: yes, 2011
Lichens are the object of investigation within the framework of the BIOTA Southern Africa project, subproject S04 (http://www.biota-africa.org). This interdisciplinary research project, installed in 2000, focuses on the analysis of biodiversity and its ...
Rambold, Gerhard, Zedda, Luciana
core  

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