Results 121 to 130 of about 9,181 (252)
Monitoring and State Assessment of Forest Ecosystems [PDF]
A methodology of monitoring and state assessment of environment based on functional hierarchy of biological systems is presented, approaches to resource and ecological assessment are divided, and studied object is determined.
Anatoliy G. Dyukarev, Nina N. Pologova
doaj
From 2000 to 2006 a total of 52 CPUE samples of spider wasps (Hymenoptera: Pompilidae) were collected in the mosaic landscape of the Kampinos National Park (Poland), which is a UNESCO Biosphere Reserve.
Katarzyna SZCZEPKO +2 more
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Evaluation of the current state of aquatic ecosystems and the problems of the protection of biological resources during development of kruzenshternskoye gcf [PDF]
The results of studies of the current state of freshwater ecosystems and their biotic components in the western part of the Yamal Peninsula are presented in the article.
Bogdanov, V. D. +4 more
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The quantitative growth and spatial dynamics of major ecotrophic groups of heterotrophic bacterioplankton in rivers Lososinka and Neglinka in Petrozavodsk(oligocarbophilic, saprophytic, phenol-resistant, hydrocarbon oxidizing, and total coliform) are ...
Elena Tekanova +2 more
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Bioindication of Urban Air Polycyclic Aromatic Hydrocarbons Using Petunia Hybrida
Different ways can be used to determinate the effects of hydrocarbons on plants: the bioindication with plants is one of these methods. It consists of using sensitive plants like Petunia hybrida to evaluate the urban levels of hydrocarbon pollution.
F. Benaissa +4 more
semanticscholar +1 more source
Purpose. To study the development of the water quality of the Dniprovs’ke reservoir, which is a water of body of complex including fisheries importance and is characterized by an increased anthropogenic pressure as a result of the processes of the ...
А. Dvoretsky +3 more
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Modifications in the structure of the lichen Cladonia thallus in the aftermath of habitat contamination and implications for its heavy-metal accumulation capacity [PDF]
Phenotypic traits of lichens can be greatly modified by environmental factors. Granulose thalli on soil and podetia, densely covered with granules, referring to common and widespread lichen Cladonia cervicornis subsp.
Boroń, Piotr +3 more
core +1 more source
Evaulation of the Quality of an Aquatic Habitat on the Drietomica River
The ecological status of a river is influenced by many factors, of which the most important are fauna and flora; in this paper they are defined as a habitat. During the years 2004, 2005, 2006 and 2011, research on the hydroecological quality of a habitat
Stankoci Ivan +2 more
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Where Have All the Young Trees Gone? A Big Picture Look at the Lack of Seedlings and Saplings in Urban Forests [PDF]
We take a big picture look at the lack of seedlings, saplings and young trees in urban forests using our research in Forest Park in Portland, Oregon. Broshot, who measured vegetation at 25 sites in Forest Park, recorded significantly fewer live seedlings,
Broshot, Nancy +2 more
core +1 more source
L'évaluation du risque toxique dans les milieux aquatiques - Glossaire
L'évaluation du risque toxique dans les milieux ...
Rédaction SET
doaj +1 more source

