Results 31 to 40 of about 994,786 (316)

Assessing Extinction Risk: Integrating Genetic Information

Ecology and Society, 1999
Risks of population extinction have been estimated using a variety of methods incorporating information from different spatial and temporal scales.
Jason Dunham, Mary Peacock, C. Richard Tracy, Jennifer Nielsen, Gary Vinyard   +4 more
doaj   +1 more source

Patterns of Understory Community Assembly and Plant Trait-Environment Relationships in Temperate SE European Forests

Diversity, 2020
We analyzed variation in the functional composition and diversity of understory plant communities across different forest vegetation types in Slovenia.
Janez Kermavnar, Lado Kutnar
doaj   +1 more source

Spatial Scaling in Model Plant Communities [PDF]

Physical Review Letters, 2005
We present an analytically tractable variant of the voter model that provides a quantitatively accurate description of beta-diversity (two-point correlation function) in two tropical forests. The model exhibits novel scaling behavior that leads to links between ecological measures such as relative species abundance and the species area relationship.
ZILLIO T, VOLKOV I, BANAVAR JR, HUBBELL SP, MARITAN, AMOS   +4 more
openaire   +4 more sources

Impervious surface extraction based on different methods from multiple spatial resolution images: a comprehensive comparison

International Journal of Digital Earth, 2021
Many efforts have been devoted to extracting impervious surfaces based on different methods from multiple spatial resolution images. Differences in extraction methods and spatial resolutions are significant and have led to discrepant performances in ...
Shanshan Feng, Fenglei Fan
doaj   +1 more source

The Question of Scale in Integrated Natural Resource Management

Ecology and Society, 2002
Lessons from integrated natural resource management (INRM) practiced at different scales are reviewed, with a focus on catchment management. INRM is complex, and many interactions have to be addressed.
Chris Lovell, Alois Mandondo, Patrick Moriarty   +2 more
doaj   +1 more source

Abundance of mycophagous arthropods present on different species of fungi in relation to resource abundance at different spatial scales

European Journal of Entomology, 2005
The abundance of Coleoptera, Diptera and Collembola on different species of fungi was investigated in relation to the size and abundance of fungal resources at different spatial scales; i.e., the size of the fungal fruiting body, the quality of resource ...
Kazuo H. TAKAHASHI, Nobuko TUNO, Takashi KAGAYA   +2 more
doaj   +1 more source

Selecting a Scale for Spatial Confounding Adjustment

Journal of the Royal Statistical Society Series A: Statistics in Society, 2020
SummaryUnmeasured, spatially structured factors can confound associations between spatial environmental exposures and health outcomes. Adding flexible splines to a regression model is a simple approach for spatial confounding adjustment, but the spline degrees of freedom do not provide an easily interpretable spatial scale.
Keller, Joshua P., Szpiro, Adam A.
openaire   +4 more sources

Scale-dependent feedback and regular spatial patterns in young mussel beds.

, 2005
In the past decade, theoretical ecologists have emphasized that local interactions between predators and prey may invoke emergent spatial patterning at larger spatial scales.
Norbert Dankers, Peter M. J. Herman, Herman, P.M.J., Johan van de Koppel, Herman, P., Rietkerk, M., Rietkerk, M.G., Max Rietkerk, Dankers, N.M.J.A., van de Koppel, J., Koppel, J. van de, Dankers, N.   +11 more
core   +1 more source

Calibration and Validation of the Cosmic Ray Neutron Rover for Soil Water Mapping within Two South African Land Classes

Hydrology, 2019
Knowledge of soil water at a range of spatial scales would further our understanding of the dynamic variable and its influence on numerous hydrological applications. Cosmic ray neutron technology currently consists of the Cosmic Ray Neutron Sensor (CRNS)
Thigesh Vather, Colin Everson, Trenton E. Franz   +2 more
doaj   +1 more source

Habitats and parasitoid abundance influence spatial density dependence patterns, rendering an asilid fly as a potential biological controller of white grubs

Frontiers in Agronomy, 2023
The behavioral response of a parasitoid shows the effect on host parasitism patterns at a given host distribution. As a result, an increase or decrease in parasitism intensity according to local host densities is found.
Marcela K. Castelo, José E. Crespo
doaj   +1 more source