Results 21 to 30 of about 256,960 (257)

Ants cannot account for interpopulation dispersal of the arillate pea Daviesia triflora [PDF]

open access: yes, 2009
• Estimating distances and rates of seed dispersal, especially long-distance dispersal (LDD), is critical for understanding the dynamics of patchily distributed populations and species’ range shifts in response to environmental change.
Gove, A.D.   +17 more
core   +1 more source

Larval Behavior and Longevity in the Cold-Water Coral Lophelia pertusa Indicate Potential for Long Distance Dispersal

open access: yesFrontiers in Marine Science, 2017
The life cycle of many marine benthic species includes a pelagic larval stage that governs the connectivity between populations. Larval transport is a function of hydrodynamic and biological processes. Knowledge of how larval traits affect dispersal will
Susanna M. Strömberg, Ann I. Larsson
doaj   +1 more source

Changing Microarthropod Communities in Front of a Receding Glacier in the High Arctic

open access: yesInsects, 2020
This study was carried out at Ny-Ålesund on Spitsbergen in Svalbard (High Arctic). Eight study sites were established along a transect from the fjord to the snout of the glacier. The sites differed from each other by the type of vegetation cover and soil
Dariusz J. Gwiazdowicz   +5 more
doaj   +1 more source

Effective long-distance pollen dispersal in Centaurea jacea [PDF]

open access: yes, 2009
BACKGROUND: Agri-environment schemes play an increasingly important role for the conservation of rare plants in intensively managed agricultural landscapes.
Albrecht, M.   +15 more
core   +2 more sources

Non-local dispersal and bistability [PDF]

open access: yes, 2006
The scalar initial value problem [ u_t = ho Du + f(u), ] is a model for dispersal. Here $u$ represents the density at point $x$ of a compact spatial region $Omega in mathbb{R}^n$ and time $t$, and $u(cdot)$ is a function of $t$ with values in some ...
Hutson, V., Grinfeld, M.
core   +4 more sources

Darwin’s wind hypothesis: does it work for plant dispersal in fragmented habitats? [PDF]

open access: yes, 2009
Using the wind-dispersed plant Mycelis muralis, we examined how landscape fragmentation affects variation in seed traits contributing to dispersal.
Riba, Miquel,   +53 more
core   +3 more sources

Finding a Home: Stopping Theory and Its Application to Home Range Establishment in a Novel Environment

open access: yesFrontiers in Conservation Science, 2021
Familiarity with the landscape increases foraging efficiency and safety. Thus, when animals are confronted with a novel environment, either by natural dispersal or translocation, establishing a home range becomes a priority.
David Saltz   +2 more
doaj   +1 more source

Invasive species control: incorporating demographic data and seed dispersal into a management model for Rhododendron ponticum [PDF]

open access: yes, 2009
Rhododendron ponticum is a serious invasive alien plant in the British Isles and is of significant conservation and economic concern. Here, we integrate information on both the life-history and spatial dynamics of this species within an individual-based,
Edwards, Colin   +9 more
core   +1 more source

Development of morphology and swimming in larvae of a coral-reef fish, the royal gramma, Gramma loreto (Grammatidae: Teleostei)

open access: yesScientia Marina, 2012
We used reared larvae of Gramma loreto sized 5.5 to 10.5 mm to study ontogeny of morphology and swim- ming. The larvae are slender to moderate in depth, with laterally compressed bodies, about 28 myomeres, a coiled gut that is not compact, extending to
Jeffrey M. Leis   +4 more
doaj   +1 more source

Conservation Actions in Multi-Species Systems: Species Interactions and Dispersal Costs

open access: yesFrontiers in Ecology and Evolution, 2021
We use the General Equilibrium Ecosystem Model (GEEM) parameterized to Wyoming sagebrush to explore the impact of two common simplifications in bio-economic policy frameworks on species conservation decisions.
Heidi J. Albers   +2 more
doaj   +1 more source

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