Results 31 to 40 of about 4,431,151 (335)

Long-Distance Wind-Dispersal of Spores in a Fungal Plant Pathogen: Estimation of Anisotropic Dispersal Kernels from an Extensive Field Experiment [PDF]

open access: yes, 2014
Given its biological significance, determining the dispersal kernel (i.e., the distribution of dispersal distances) of spore-producing pathogens is essential. Here, we report two field experiments designed to measure disease gradients caused by sexually-
Andreas Mehl   +40 more
core   +1 more source

Social Distancing as p-Dispersion Problem [PDF]

open access: yesIEEE Access, 2020
The spread of COVID-19 and similar viruses poses new challenges for our society. There is a strong incentive towards safety measures that help to mitigate the outbreaks. Many countries have imposed social distancing measures that require a minimum distance between people in given places, such as schools, restaurants, shops, etc.
openaire   +3 more sources

Seed dispersal in six species of terrestrial orchids in Biebrza National Park (NE Poland)

open access: yesActa Societatis Botanicorum Poloniae, 2017
Knowledge about seed dispersal is required to explain problems in ecology, phylogeography, and conservation biology. Even though seed dispersal is a fundamental mechanism to understand problems at different levels of biological organization (individual ...
Emilia Brzosko   +8 more
doaj   +1 more source

Long-distance airborne dispersal of SARS-CoV-2 in COVID-19 wards

open access: yesScientific Reports, 2020
Evidence suggests that SARS-CoV-2, as well as other coronaviruses, can be dispersed and potentially transmitted by aerosols directly or via ventilation systems.
K. Nissen   +7 more
semanticscholar   +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

Secondary wind dispersal enhances long-distance dispersal of an invasive species in urban road corridors [PDF]

open access: yes, 2011
Roads contribute to habitat fragmentation and function as dispersal barriers for many organisms. At the same time many nonnative plant species are associated with road systems, a relationship that has been explained by the availability of disturbed ...
Kowarik, Ingo   +6 more
core   +1 more source

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

Individual Nest Site Preferences Do Not Explain Upslope Population Shifts of a Secondary Cavity-Nesting Species

open access: yesAnimals, 2021
Geographic ranges of plants and animals are shifting due to environmental change. While some species are shifting towards the poles and upslope in elevation, the processes leading to these patterns are not well known.
Elisa J. Abeyta   +3 more
doaj   +1 more source

Low rate of between-population seed dispersal restricts genetic connectivity and metapopulation dynamics in a clonal shrub [PDF]

open access: yes, 2012
Clonal species normally have low seed production, low recruitment rates and long lifespans, and it is expected that the rates of long-distance dispersal (LDD) of seeds will be low as well. Banksia candolleana is a clonal shrub in Mediterranean-type, fire-
Laura Merwin   +13 more
core   +1 more source

The Role of long distance dispersal versus local retention in replenishing marine populations [PDF]

open access: yes, 2003
Early models and evidence from genetics suggested that long distance dispersal of larvae is likely a common event leading to considerable population connectivity among distant populations.
Paris, Claire B   +11 more
core   +1 more source

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