Results 31 to 40 of about 10,486,597 (353)
Variations in the Volatile Compositions of Curcuma Species [PDF]
Curcuma species have been cultivated in tropical and subtropical regions in Asia, Australia, and South America for culinary as well as medicinal applications. The biological activities of Curcuma have been attributed to the non-volatile curcuminoids as well as to volatile terpenoids.
Noura S. Dosoky +2 more
openaire +3 more sources
Tree cover and species composition effects on academic performance of primary school students
Human exposure to green space and vegetation is widely recognized to result in physical and mental health benefits; however, to date, the specific effects of tree cover, diversity, and species composition on student academic performance have not been ...
Sivajanani Sivarajah +2 more
semanticscholar +1 more source
A comparison of presettlement and modern forest composition along an elevation gradient in central New Hampshire [PDF]
Tree species composition is influenced not only by edaphic and climatic factors but also by natural and human-caused disturbances. To understand interactions among these influences, we compared forest species composition data from the time of European ...
Cogbill, Charles V. +3 more
core +3 more sources
Phylogeography above the species level for perennial species in a composite genus [PDF]
Abstract In phylogeography, DNA sequence and fingerprint data at the population level are used to infer evolutionary histories of species. Phylogeography above the species level is concerned with the genealogical aspects of divergent lineages.
Tremetsberger, Karin +6 more
openaire +5 more sources
At present, urban areas cover almost 3% of the Earth’s terrestrial area, and this proportion is constantly increasing. Although urbanization leads to a decline in biodiversity, at the same time it creates extensive habitats that are exploited by an ...
M. Ciach, A. Fröhlich
semanticscholar +1 more source
Aim. The goal of the research is that: to identify the taxonomic composition of game species and make full list of species to assess the current state of populations and resources to carry out eco-faunistic analysis of the distribution of game mammals ...
A. M. Batkhiyev, H. S. Yandakrhanov
doaj +1 more source
Alkaloid Composition of the Nicotiana Species [PDF]
Abstract Plants from 64 Nicotiana species were sampled in the greenhouse in 1983 and 1984 and from the field in 1985 and 1986 for the purpose of developing a chemical profile of each species. Mature green leaves were harvested at flowering, freeze-dried and ground to pass a 1 mm screen prior to chemical analysis.
Sisson VA, Severson RF
openaire +2 more sources
Significance This research focuses on how species composition and soil properties interact to control carbon fixation and water loss in California’s montane forests.
T. Maxwell +2 more
semanticscholar +1 more source
ASSESSMENT OF THE CURRENT STATE OF BENTHIC FAUNA AND WATER QUALITY OF CHANNELS OF THE VOLGA DELTA
Aim. We present the findings of studies of the current state of benthic fauna of the Volga delta channels by the structure of benthic communities.
O. G. Tarasova, V. F. Zaitsev
doaj +1 more source
Biogeography of Amazon birds: rivers limit species composition, but not areas of endemism
Amazonian rivers are usually suggested as dispersal barriers, limiting biogeographic units. This is evident in a widely accepted Areas of Endemism (AoEs) hypothesis proposed for Amazonian birds.
Ubirajara Oliveira +2 more
semanticscholar +1 more source

