Results 21 to 30 of about 4,431,151 (335)

Evolution of dispersal distance [PDF]

open access: yesJournal of Mathematical Biology, 2011
The problem of how often to disperse in a randomly fluctuating environment has long been investigated, primarily using patch models with uniform dispersal. Here, we consider the problem of choice of seed size for plants in a stable environment when there is a trade off between survivability and dispersal range. Ezoe (J Theor Biol 190:287-293, 1998) and
Durrett, Rick, Remenik Zisis, Daniel
openaire   +2 more sources

Seed dispersal effectiveness in fragmented and defaunated landscapes

open access: yesEcosphere, 2023
Landscape fragmentation and defaunation have major impacts on plant dispersal and dynamics. However, whether the impact of such perturbations on seed dispersal and recruitment change in sign and strength across habitats and spatial scales, and whether ...
Jose M. Fedriani   +4 more
doaj   +1 more source

Distance-2-Dispersion: Dispersion with Further Constraints

open access: yes, 2023
The aim of the dispersion problem is to place a set of $k(\leq n)$ mobile robots in the nodes of an unknown graph consisting of $n$ nodes such that in the final configuration each node contains at most one robot, starting from any arbitrary initial configuration of the robots on the graph.
Tanvir Kaur, Kaushik Mondal 0001
openaire   +3 more sources

Dispersion Distance and the Matter Distribution of the Universe in Dispersion Space [PDF]

open access: yesPhysical Review Letters, 2015
We propose that "standard pings", brief broadband radio impulses, can be used to study the three-dimensional clustering of matter in the Universe even in the absence of redshift information. The dispersion of radio waves as they travel through the intervening plasma can, like redshift, be used as a cosmological distance measure.
Masui, Kiyoshi Wesley, Sigurdson, Kris
openaire   +3 more sources

Long−Distance Wind Dispersal Drives Population Range Expansion of Solidago canadensis

open access: yesPlants, 2022
Canada goldenrod (Solidago canadensis L.) is a serious invasive alien plant species that exerts negative effects on natural and agricultural ecosystems in China. Few studies have addressed the dispersal of S.
Zheng Zhang   +4 more
doaj   +1 more source

Evolution of dispersal distance: maternal investment leads to bimodal dispersal kernels. [PDF]

open access: yesJournal of Theoretical Biology, 2015
Since dispersal research has mainly focused on the evolutionary dynamics of dispersal rates, it remains unclear what shape evolutionarily stable dispersal kernels have. Yet, detailed knowledge about dispersal kernels, quantifying the statistical distribution of dispersal distances, is of pivotal importance for understanding biogeographic diversity ...
E. A. Fronhofer   +2 more
semanticscholar   +7 more sources

Plant canopy may promote seed dispersal by wind

open access: yesScientific Reports, 2022
Seed dispersal has received much research attention. The plant canopy can intercept diaspores, but the effect of the plant canopy (the aboveground portion of a plant consisting of branches and leaves) on dispersal distance has not been explored ...
Xuanping Qin   +8 more
doaj   +1 more source

Geographic distance affects dispersal of the patchy distributed greater long-tailed hamster (Tscherskia triton). [PDF]

open access: yesPLoS ONE, 2014
Dispersal is a fundamental process in ecology influencing the genetic structure and the viability of populations. Understanding how variable factors influence the dispersal of the population is becoming an important question in animal ecology.
Huiliang Xue   +3 more
doaj   +1 more source

Dispersal and population structure at different spatial scales in the subterranean rodent Ctenomys australis [PDF]

open access: yes, 2010
This study was funded by grants from Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET, PIP5838), Agencia de Promoción Científica y Tecnológica de la Argentina (PICTO1-423, BID-1728/OC-AR), and the programme ECOS-Sud France/Argentina ...
Gaggiotti, Oscar E.   +14 more
core   +2 more sources

How far can EPTs fly? A comparison of empirical flying distances of riverine invertebrates and existing dispersal metrics

open access: yesEcological Indicators, 2021
The species composition of a community is driven by the dispersal capacity of the species forming that community and their ecological niche. While the ecological niches of EPTs (Ephemeroptera, Plecoptera and Trichoptera) are well-studied due to their ...
Andrés Peredo Arce   +3 more
doaj   +1 more source

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