Results 51 to 60 of about 2,801,448 (290)

The role of individual variation in marine larval dispersal

open access: yesFrontiers in Marine Science, 2014
The exchange of individuals among patchy habitats plays a central role in spatial ecology and metapopulation dynamics. Dispersal (e.g. short vs. long) is frequently observed to vary non-randomly within populations, indicating that variability among ...
Gerrit Berend Nanninga   +1 more
doaj   +1 more source

DISPERSE, a trait database to assess the dispersal potential of European aquatic macroinvertebrates

open access: yesScientific Data, 2020
Dispersal is an essential process in population and community dynamics, but is difficult to measure in the field. In freshwater ecosystems, information on biological traits related to organisms’ morphology, life history and behaviour provides useful ...
Romain Sarremejane   +18 more
semanticscholar   +1 more source

The role of soils on pollination and seed dispersal

open access: yesPhilosophical Transactions of the Royal Society of London. Biological Sciences, 2021
Ongoing environmental changes are affecting physical, chemical and biological soil components. Evidence of impacts of soil changes on pollinators' and seed dispersers' behaviour, fitness and density is scarce, but growing.
L. Carvalheiro   +4 more
semanticscholar   +1 more source

A Review of the Phenotypic Traits Associated with Insect Dispersal Polymorphism, and Experimental Designs for Sorting out Resident and Disperser Phenotypes

open access: yesInsects, 2020
Dispersal represents a key life-history trait with several implications for the fitness of organisms, population dynamics and resilience, local adaptation, meta-population dynamics, range shifting, and biological invasions.
David Renault
doaj   +1 more source

Asymptotic limits of the principal spectrum point of a nonlocal dispersal cooperative system and application to a two-stage structured population model [PDF]

open access: yesarXiv, 2023
This work examines the limits of the principal spectrum point, $\lambda_p$, of a nonlocal dispersal cooperative system with respect to the dispersal rates. In particular, we provide precise information on the sign of $\lambda_p$ as one of the dispersal rates is : (i) small while the other dispersal rate is arbitrary, and (ii) large while the other is ...
arxiv  

Larval Dispersal Modeling of Pearl Oyster Pinctada margaritifera following Realistic Environmental and Biological Forcing in Ahe Atoll Lagoon

open access: yesPLoS ONE, 2014
Studying the larval dispersal of bottom-dwelling species is necessary to understand their population dynamics and optimize their management. The black-lip pearl oyster (Pinctada margaritifera) is cultured extensively to produce black pearls, especially ...
Y. Thomas, F. Dumas, S. Andréfouët
semanticscholar   +1 more source

Mother knows best: dominant females determine offspring dispersal in red foxes (Vulpes vulpes). [PDF]

open access: yesPLoS ONE, 2011
Relatedness between group members is central to understanding the causes of animal dispersal. In many group-living mammals this can be complicated as extra-pair copulations result in offspring having varying levels of relatedness to the dominant animals,
Helen M Whiteside   +3 more
doaj   +1 more source

Dispersal and Repulsion of Entomopathogenic Nematodes to Prenol

open access: yesBiology, 2019
Chemosensory cues are crucial for entomopathogenic nematodes (EPNs)—a guild of insect-killing parasitic nematodes that are used as biological control agents against a variety of agricultural pests.
Kassandra Kin   +2 more
doaj   +1 more source

Life strategies of semi-desert plants: mechanisms of dispersal and reproduction in the thermomediterranean shrubland community Anabasio-Euzomodendretum bourgaeani

open access: yesAnales del Jardín Botánico de Madrid, 1999
The present study describes mechanisms of dispersal and reproduction in the thermomediterranean shrubland community Anabasio hispanicae-Euzomodendretum bourgaeani.
Isabell Hensen
doaj   +1 more source

Controlling effective dispersion within a channel with flow and active walls [PDF]

open access: yes, 2019
Channels are fundamental building blocks from biophysics to soft robotics, often used to transport or separate solutes. As solute particles inevitably transverse between streamlines along the channel by molecular diffusion, the effective diffusion of the solute along the channel is enhanced - an effect known as Taylor dispersion.
arxiv   +1 more source

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