Estimating dispersal from short distance spatial autocorrelation
نویسندگان
چکیده
منابع مشابه
Methods for estimating long-distance dispersal
Long-distance dispersal (LDD) includes events in which propagules arrive, but do not necessarily establish, at a site far removed from their origin. Although important in a variety of ecological contexts, the system-specific nature of LDD makes ‘‘far removed’’ difficult to quantify, partly, but not exclusively, because of inherent uncertainty typically involved with the highly stochastic LDD pr...
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Ant~pathes fiordensis is a black coral species endermc to the south western reglon of New Zealand Restncted larval dlspersal has been demonstrated to occur In A fiordens~s although the exact scale of larval dlspersal is unknown Thls study examlnes the fine-scale (<50 m) pattern of relatedness between black coral colonles at 3 sltes in Doubtful Sound Fiordland to mfer dspersa l &stance and gain ...
متن کاملSpatial Autocorrelation, Dispersal and the Maintenance of Source-Sink Populations
Populations may be regulated by both local density dependent factors and spatial variation in habitat quality I explore the in uence of spatial autocor relation in habitat quality on the survival of model populations Dispersal is modeled as Markov tran sitions between patches A nite rate of population increase was assigned to each patch Total habitat area and mean dispersal distance had strong ...
متن کاملMeasuring short distance dispersal of Alliaria petiolata and determining potential long distance dispersal mechanisms
Introduction Alliaria petiolata, an herbaceous plant, has invaded woodlands in North America. Its ecology has been thoroughly studied, but an overlooked aspect of its biology is seed dispersal distances and mechanisms. We measured seed dispersal distances in the field and tested if epizoochory is a potential mechanism for long-distance seed dispersal. Methods Dispersal distances were measured...
متن کاملSpatial Autocorrelation
Glossary AutoA prefix literally meaning self; spatial autocorrelation means self-correlation, or values within a given variable are correlated, resulting in the variable being correlated with itself. Correlation A description of the nature and degree of a relationship between a pair of quantitative variables. Geary Ratio An index of spatial autocorrelation, involving the computation of squared ...
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ژورنال
عنوان ژورنال: Heredity
سال: 2005
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800680