Results 1 to 10 of about 1,184,184 (365)

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

The unmarked R package: Twelve years of advances in occurrence and abundance modelling in ecology [PDF]

open access: goldMethods in Ecology and Evolution, 2023
Species distribution models (SDMs) are widely applied to understand the processes governing spatial and temporal variation in species abundance and distribution but often do not account for measurement errors such as false negatives and false positives ...
Kenneth F. Kellner   +5 more
openalex   +2 more sources

Automating the analysis of fish abundance using object detection: optimising animal ecology with deep learning [PDF]

open access: greenbioRxiv, 2019
Aquatic ecologists routinely count animals to provide critical information for conservation and management. Increased accessibility to underwater recording equipment such as cameras and unmanned underwater devices have allowed footage to be captured ...
Ellen M. Ditria   +5 more
openalex   +2 more sources

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   +3 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

Neutral theory and relative species abundance in ecology [PDF]

open access: greenNature, 2003
19 pages, 1 ...
Igor Volkov   +3 more
openalex   +6 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

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

REVIEW: On the species abundance distribution in applied ecology and biodiversity management [PDF]

open access: bronze, 2014
Summary 1. The species abundance distribution (SAD) is an important concept in ecology, and much work has focused on the SAD in a theoretical context.
Thomas J. Matthews, Robert J. Whittaker
openalex   +2 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

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