Results 71 to 80 of about 43,983 (161)

The Interspecific Abundance–Occupancy Relationship in Invertebrate Metacommunities Associated with Intertidal Mussel Patches

open access: yesEcologies
To explain the distribution and abundance of species, ecology searches for general models. A pattern often encountered in nature is the interspecific abundance–occupancy relationship (AOR), which describes how the mean local abundance of species relates ...
Ricardo A. Scrosati
doaj   +1 more source

Composition, abundance and ecology of phytoplankton communities of Loktak Lake, Manipur, India

open access: yesJournal of Threatened Taxa, 2009
Phytoplankton communities of Loktak Lake (a Ramsar site), studied during November 2002-October 2004, reveal the occurrence of 75 and 71 species, indicate monthly richness ranging between 47 plus or minus 6 and 49 plus or minus 3 species and record 50.0-
B.K. Sharma
doaj   +1 more source

Modelling ecological communities as if they were DNA [PDF]

open access: yesarXiv, 2014
Ecologists are interested in understanding and predicting how ecological communities change through time. While it might seem natural to measure this through changes in species' abundances, computational limitations mean transitions between community types are often modelled instead.
arxiv  

Remotely piloted aircraft improve precision of capture–mark–resight population estimates of Australian fur seals

open access: yesEcosphere, 2019
Remotely piloted aircraft (RPA or drones) have become a powerful tool for use in spatial and temporal ecology. Major benefits for environmental management, including improved accuracy and precision for population monitoring of fauna, are being realized ...
Karina J. Sorrell   +3 more
doaj   +1 more source

Microcrustacea (Crustacea: Branchiopoda) of Deepor Beel, Assam, India: richness, abundance and ecology

open access: yesJournal of Threatened Taxa, 2009
Plankton samples collected from two sampling stations of Deepor Beel, an important floodplain lake of Assam and a Ramsar site of India, revealed 51 species of Microcrustacea and showed qualitative dominance of Cladocera (45 species).
B.K. Sharma, S. Sharma
doaj   +1 more source

Ecological controlling weed abundance in winter wheat crops

open access: yesKarantin i zahist roslin, 2020
Goal. To study the effectiveness of fertilizers and crop rotation factor in controlling weed abundance in winter wheat crops. Methods. Long-term field and analytical. Results. Research data on the effectiveness of fertilizers and legumes predecessors in controlling weed abundance in winter wheat crops are presented.
Ya. Tsvei, R. V. Ivanina, Yu. Dubovyi
openaire   +2 more sources

Diversity of Phytoplankton of a sub-tropical reservoir of Mizoram, northeast India

open access: yesInternational Journal of Aquatic Biology, 2016
Phytoplankton of Khawiva reservoir of Mizoram, northeast India (NEI) revealed a total of 55 species; nearly concurrent mean monthly richness and high community similarities (vide Sørensen index) during two years affirmed homogeneity in its species ...
Bhushan Kumar Sharma   +1 more
doaj  

Seasonal Dynamics of Fruit Flies (Diptera: Drosophilidae) in Natural Parks of Moscow City, Russia

open access: yesInsects
The insect fauna of natural parks in large cities has not been sufficiently studied in Russia. This study represents the first investigation of the seasonal dynamics and species diversity of Drosophilidae in Moscow city. Traps with fermenting liquid were
Nicolay G. Gornostaev   +3 more
doaj   +1 more source

The general theory of species abundance distributions [PDF]

open access: yesarXiv, 2010
A central issue in ecology today is that of the factors determining the relative abundance of species within a natural community. The proper application of the principles of statistical physics to the problem of species abundance distributions (SADs) has enabled us to identify the fundamental ecological principles responsible for the near universal ...
arxiv  

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