Results 101 to 110 of about 39,909 (252)

A study of the root surface phosphatase activities of three species of higher plants: Juncus effusus, Phragnutes australis, and Typha latifolia [PDF]

open access: yes, 1993
The aim of this project was to investigate a possible link between environmental phosphorus status and the root surface phosphatase activities of three species of emergent macrophytes, with a view to assessing their potential for use as "biondicators ...
Luff, Heather
core  

Urban birds' detectability is affected by inter‐ and intraspecific variation in shyness

open access: yesIbis, EarlyView.
Detection probabilities differ between bird species as a function of their life history and ecological and behavioural traits, inevitably introducing bias in their abundance and occupancy estimates. However, the effects of behavioural traits such as species shyness and vigilance on detectability remain poorly understood.
Peter Mikula   +3 more
wiley   +1 more source

Macroalgae fouling community as quality element for the evaluation of the ecological status in Vela Luka Bay, Croatia

open access: yesActa Societatis Botanicorum Poloniae, 2012
One year qualitative and quantitative study of communities of three major taxonomic groups has been carried out at test panles placed in the upper infarlittoral zone of coastal area of Vela Luka Bay, Croatia. A list of 44 taxa was recorded.
Gorana Jelic Mrcelic   +2 more
doaj   +1 more source

Flora algal de la cuenca del río Guadalquivir: Su valor en la determinación de la ecorregionalización de la cuenca [PDF]

open access: yes, 2018
In compliance with the Water Framework Directive of the European Union, we needed to diagnose the ecologic quality of the different sections of the rivers of the Guadalquivir basin. In order to establish a regional classification of the water bodies by a
Casco, Maria Adela   +5 more
core   +2 more sources

Seasonal dynamics in terrestrial insect communities after the impact of the Brumadinho tailings dam disaster

open access: yesInsect Conservation and Diversity, EarlyView.
Despite severe habitat loss, insect species richness, seasonal fluctuations in richness and temporal β‐diversity did not differ significantly among forests adjacent to the mudflow and reference sites. We found higher wet‐season species richness for ants, bees, butterflies and dung beetles, while termites showed no seasonal change; β‐diversity was ...
Frederico Neves   +11 more
wiley   +1 more source

Water availability and land‐use shape the diversity of Odonata in the Middle East

open access: yesInsect Conservation and Diversity, EarlyView.
Odonata diversity in the Middle East depends on the availability of long‐lasting waters, emphasizing the importance of preserving stable aquatic habitats for biodiversity conservation under climate change‐driven droughts. Agricultural expansion is associated with increased Odonata species richness, but overall trait diversity remains limited ...
Zohreh Eslami Barzoki, Jonathan Chase
wiley   +1 more source

Optimizing passive acoustic sampling of bats in forests [PDF]

open access: yes, 2014
Passive acoustic methods are increasingly used in biodiversity research and monitoring programs because they are cost-effective and permit the collection of large datasets.
Boesch R.   +6 more
core   +2 more sources

Critical tipping points in dung beetle communities: Implications for conservation in the Atlantic Forest biome

open access: yesInsect Conservation and Diversity, EarlyView.
Minor land‐use changes consistently lead to abrupt biodiversity shifts across all diversity dimensions, favoring generalist dung beetle species while excluding sensitive specialists. These shifts are observed at lower environmental change rates than previously considered, with significant changes apparent after just 25% habitat loss.
Paula Ribeiro Anunciação   +4 more
wiley   +1 more source

Changes in physicochemical and toxicological parameters of waters of Trincheira's River caused by road construction

open access: yesRevista Ambiente & Água, 2019
Road infrastructures can greatly affect natural areas. A trench and a roundabout were constructed in the city of Francisco Beltrão-Paraná-Brazil over a water body called Trincheira's River.
Juan Camilo Pires Salcedo Restrepo   +7 more
doaj   +1 more source

Radionuclides in arctic marine macroalgae from Kongsfjorden (Svalbard) [PDF]

open access: yes, 2018
Seaweeds are known to be useful environmental bioindicators since they bioaccumulate radioisotopes at very low environmental concentrations. Levels of natural radionuclides in six ecologically relevant brown and red seaweed species from Arctic coasts ...
Carmona-Fernandez, Raquel   +8 more
core  

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