Results 101 to 110 of about 2,181 (271)

CONTRIBUTIONS TO THE KNOWLEDGE OF LICHENS COMMUNITIES FROM BISTRITA MOUNTAINS (EASTERN CARPATHIANS) [PDF]

open access: yesJournal of Plant Development, 2007
This paper presents two lichens communities (Parmelietum caperatae Felf. 1941 and Usneetum filipendulae Hil. 1925) from Physcietea Tomaselli and Micheli 1957 and Hypogymnietea physodes Follm. 1974 classes, identified in Bistrita Mountains territory, in 5
POPA (MARDARI) LOREDANA
doaj  

Assessing soil and native high Andean grassland quality under grazing: A case study from the wet Puna of Peru

open access: yesGrassland Science, EarlyView.
Abstract High Andean grasslands are vulnerable to changes in their nutritional quality and carbon sequestration capacity, especially in grazing systems. This study evaluated soil quality and native grasses by measuring carbon, physicochemical parameters, and the nutritional quality of predominant species in the wet Puna of Junín, Peru.
Alberto Arias‐Arredondo   +5 more
wiley   +1 more source

The introduction of tree and shrub species in the central district of Zanjan county town

open access: yesیافته‌های نوین در علوم زیستی, 2020
Floristic study is one of the most efficient methods of gaining knowledge about biological capacities, as well as management and conservation of plant genetic resources in ecological systems.
Zohreh Toghranegar, Mahnaz Vafadar
doaj  

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

open access: yesIbis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza   +4 more
wiley   +1 more source

LANDSCAPE ELEMENTS AS A SOURCE OF FLORISTIC-STRUCTURAL HETEROGENEITY OF THE TREE COMPONENT IN AN AREA OF OMBROPHILOUS MIXED FOREST

open access: yes, 2018
This study aimed to test the hypothesis that different landscape elements, such as corridors, connected and non-connected forest fragments, have a tree component with floristic-structural differences. For this sake, the tree component of a fragment-corridor system was sampled by permanent plots (10 × 20 m), totaling an area of 1.4 ha. Within the plots,
Higuchi, Pedro   +9 more
openaire   +1 more source

MIMOSOIDEAE (FABACEAE) DA REGIÃO DO MANSO, ANTÔNIO DIAS, MINAS GERAIS: DISTRIBUIÇÃO GEOGRÁFICA E SIMILARIDADE FLORÍSTICA NA FLORESTA ATLÂNTICA

open access: yesCiência Florestal, 2016
Manso’s region is located at 785m of altitude in Antônio Dias town, east of Minas Gerais State, Brazil, which is in the Atlantic domain in a formation of Seasonal Semideciduous Montane Forest. In the inventory of Mimosoideae of that region, it wase found
Ariane Cristine Araújo Silva   +3 more
doaj  

Floral resource strips enhance parasitoid abundance and diversity in apple orchards and promote agroecological advances in a South African biosphere reserve

open access: yesInsect Conservation and Diversity, EarlyView.
Floral resource strips within apple orchards increased parasitoid abundance and influenced community composition, enhancing local biodiversity in the Kogelberg Biosphere Reserve's transition zone. Ruderal and natural fynbos habitats supported higher parasitoid richness and abundance, emphasising the importance of conserving semi‐natural habitats ...
Fabrizia Ratto   +7 more
wiley   +1 more source

THE STUDY OF THE ASSOCIATION SYMPHYTO CORDATI-FAGETUM VIDA (1959) 1963 FROM THE NORTHERN PART OF THE SEMENIC MOUNTAINS – ROMANIA

open access: yesNatural Resources and Sustainable Development
This article presents the results of research on pure European beech forests with Symphytum cordatum found in the northern part of the Semenic Mountains (southwestern Romania).
Bojinescu Rostescu Iglicea
doaj   +1 more source

Ethnic Diversity in Compulsory Schooling and Occupational Choices: Can Diversity Increase the Supply in Care‐Oriented Occupations

open access: yesIndustrial Relations: A Journal of Economy and Society, EarlyView.
ABSTRACT We investigate the effect of ethnic diversity on occupational choices, particularly in care‐oriented occupations which are scarce in many high‐income countries. We use administrative data of all students in Switzerland to study two diversity dimensions: ethnic fractionalization and ethnic polarization.
Damiano Pregaldini   +2 more
wiley   +1 more source

An updated classification of growth forms in non‐geniculate coralline algae (Corallinophycidae, Rhodophyta)

open access: yesJournal of Phycology, EarlyView.
Abstract The current challenge of defining growth forms in the non‐geniculate coralline red algae was addressed. Since the 19th century, those who have worked on this large and globally distributed group of algae have tried to summarize and systematically describe their growth forms. This effort resulted in a plethora of terms, which could sometimes be
Gavin W. Maneveldt   +18 more
wiley   +1 more source

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