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Neutral theory and relative species abundance in ecology [PDF]

open access: greenNature, 2003
The theory of island biogeography[1] asserts that an island or a local community approaches an equilibrium species richness as a result of the interplay between the immigration of species from the much larger metacommunity source area and local ...
Igor Volkov   +3 more
core   +8 more sources

Global abundance patterns, diversity, and ecology of Patescibacteria in wastewater treatment plants [PDF]

open access: goldMicrobiome, 2023
Background Microorganisms are responsible for nutrient removal and resource recovery in wastewater treatment plants (WWTPs), and their diversity is often studied by 16S rRNA gene amplicon sequencing.
Huifeng Hu   +8 more
doaj   +7 more sources

SUMMER ABUNDANCE AND ECOLOGY OF ZOOPLANKTON IN THE GULF STREAM

open access: greenThe Biological Bulletin, 1975
We have described the results of laboratory analyses of 42 horizontal tows using a Clarke-Bumpus plankton sampler with a 100 µ emmesh net in the Gulf Stream. Classifications of 20 zooplankton taxa have been made for the 42 hauls. Calanoids dominate the hauls. It was found that the zooplankton population distribution and density varied considerably from
Walter G. Egan, James E. Conrad
openalex   +6 more sources

Ecology and abundance of zooplankton in Karanja reservoir [PDF]

open access: hybridEnvironmental Monitoring and Assessment, 2008
The present work aims to study the Zooplankton seasonal distribution and diversity in Karanja reservoir, Bidar district for the period of two years from October 2001 to September 2003. We have recorded 36 species of which, 15 species belongs to rotifera, 11 species belongs to cladocera, nine species belongs to copepoda and ostracoda three species ...
Shashikanth H. Majagi, K. Vijaykumar
openalex   +5 more sources

Network properties, species abundance and evolution in a model of evolutionary ecology [PDF]

open access: greenJournal of Theoretical Biology, 2004
We study the evolution of the network properties of a populated network embedded in a genotype space characterised by either a low or a high number of potential links, with particular emphasis on the connectivity and clustering. Evolution produces two distinct types of network.
Paul E. Anderson, Henrik Jeldtoft Jensen
openalex   +6 more sources

Species Lists in Ecology and Conservation: Abundances Matter [PDF]

open access: greenConservation Biology, 2002
In a paper in the October 2001 issue of Conservation Biology , Gomez de Silva and Medellin (2001) studied the problem of incomplete species lists in conservation and macroecology. They based their study on the observation that “studies of species diversity, macroecology, and conservation are usually based on lists of species, but lists found in the ...
Oliver Balmer
openalex   +5 more sources

Comparative Analysis of Core Microbiome Assignments: Implications for Ecological Synthesis

open access: yesmSystems, 2023
The concept of a core microbiome has been broadly used to refer to the consistent presence of a set of taxa across multiple samples within a given habitat.
Gordon F. Custer   +4 more
doaj   +1 more source

Fungal ethnoecology: observed habitat preferences and the perception of changes in fungal abundance by mushroom collectors in Poland

open access: yesJournal of Ethnobiology and Ethnomedicine, 2021
Background Scientists frequently raise the topic of data deficiency related to the abundance and distribution of macrofungi in the context of climate change.
Marcin Andrzej Kotowski   +2 more
doaj   +1 more source

Tiger abundance and ecology in Jigme Dorji National Park, Bhutan

open access: yesGlobal Ecology and Conservation, 2023
Conservation of large carnivores, especially, wild tigers (Panthera tigris) require an accurate population estimate and knowledge of their ecology. Camera traps have been widely used to estimate the population abundance of animals with unique natural ...
Pema Dendup   +3 more
doaj   +1 more source

Abundance-weighted phylogenetic diversity measures distinguish microbial community states and are robust to sampling depth [PDF]

open access: yesPeerJ, 2013
In microbial ecology studies, the most commonly used ways of investigating alpha (within-sample) diversity are either to apply non-phylogenetic measures such as Simpson’s index to Operational Taxonomic Unit (OTU) groupings, or to use classical ...
Connor O. McCoy, Frederick A. Matsen IV
doaj   +2 more sources

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