Results 161 to 170 of about 350,492 (197)

Real-time underwater sorting of edible fish species

Computers and Electronics in Agriculture, 2007
Common carp (Cyprinus carpio), St. Peter's fish (Oreochromis sp.) and grey mullet (Mugil cephalus), were sorted according to species while swimming in pond water containing algae and suspended sediments. Fish images were acquired by a computer vision system while swimming through a narrow channel with their sides to the camera so that distance from the
Boaz Zion, Victor Alchanatis, Viacheslav Ostrovsky, Assaf Barki, Ilan Karplus   +4 more
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Species sorting dominates plant metacommunity structure in coastal dunes

Acta Oecologica, 2012
Abstract It has long been thought that environmental factors determine plant community assembly, but it is now increasingly argued that geographic spatial processes such as dispersal may also matter. Notably, the metacommunity framework considers local communities to be linked by dispersal and different theories hereunder assign varying importance to
Brunbjerg, A.K., Ejrnæs, R., Svenning, J.-C.   +2 more
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P-sort dataset: Purkinje cell electrophysiological recordings in three species

2021
We recorded electrophysiological data from marmosets, macaques, and mice cerebellums and developed an open-source spike analysis software that not only improves the detection of simple and complex spikes, but also quantifies whether the two events are generated by a single P-cell.
Fakharian, Mohammad Amin, Shadmehr, Reza, Sedaghat-Nejad, Ehsan   +2 more
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Dominance of species sorting over dispersal at microgeographical scales in polluted lotic ecosystems

Environmental Pollution, 2023
Global rivers, particularly those in populated urban areas, are challenged by multiple stressors such as pollution from anthropogenic activities. Dissecting the relative role of each ecological process involved in structuring biotic communities is fundamental in both theoretical and applied ecology.
Wei, Xiong, Yiyong, Chen, Aibin, Zhan
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Coexistence through spatio‐temporal heterogeneity and species sorting in grassland plant communities

Ecology Letters, 2008
AbstractThe effect of spatial heterogeneity on species coexistence relies on the degree of niche heterogeneity in the habitat and the ability of species to exploit the available niche opportunities. We studied species coexistence in a perennial grassland, and tested whether small‐scale disturbances create environmental heterogeneity that affects ...
Erin J, Questad, Bryan L, Foster
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The Persistence and Sorting of Incipient Species

2000
Abstract The emergence of full-fledged neospecies is preceded by the evolution of incipient neospecies (species in statu nascendi). They have distinctive ecological pro files and/or genetic systems, but are not sufficiently divergent to warrant recognizing them as neospecies.
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Seed availability constrains plant species sorting along a soil fertility gradient

Journal of Ecology, 2010
Summary 1. Spatial variation in species composition within and among communities may be caused by deterministic, niche‐based species sorting in response to underlying environmental heterogeneity as well as by stochastic factors such as dispersal limitation and variable species pools.
Bryan L. Foster, Erin J. Questad, Cathy D. Collins, Cheryl A. Murphy, Timothy L. Dickson, Val H. Smith   +5 more
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Affinity chromatography ofEuglena: A novel means of sorting phytoplankton species

Experientia, 1977
Euglena species can be selectively bound to nylon using an E. gracilis strain Z antiserum. This affinity chromatography procedure isolates living cells and is genus-specific.
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A quantitative analysis of species sorting across organisms and ecosystems

Ecology, 2014
The estimation of the relative roles of environment, space, and their interactions in structuring community composition is one of the central topics of community ecology. I conducted a quantitative review to determine if the degree of species sorting (SS) by the abiotic environment varied predictably between organism types and ecosystems.
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Linking grassland plant diversity to species pools, sorting and plant traits

Journal of Ecology, 2011
Summary1. Variation in species pools can affect plant diversity, but it remains unclear whether the magnitude of the response varies because of resource availability, community invasibility or other environmental factors, and whether colonization along environmental gradients reflects niche‐based species sorting or neutral processes.2.
Gregory R. Houseman, Katherine L. Gross
openaire   +1 more source