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Distance‐Based Tests for Homogeneity of Multivariate Dispersions
Biometrics, 2005SummaryThe traditional likelihood‐based test for differences in multivariate dispersions is known to be sensitive to nonnormality. It is also impossible to use when the number of variables exceeds the number of observations. Many biological and ecological data sets have many variables, are highly skewed, and are zero‐inflated.
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Long-Distance Dispersal and Spread
2016Long-distance dispersal is a key factor driving rapid spread of invasive species. In this chapter, we develop models for dispersal kernels, which describe the spatial distribution of propagules relative to their parent. Dynamical systems that couple dispersal kernels with population growth can be formulated in either discrete time (integrodifference ...
Mark A. Lewis +2 more
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Ecomorphological predictors of natal dispersal distances in birds
Journal of Animal Ecology, 20091. Dispersal is one of the key ecological parameters but it is very difficult to quantify directly. As a consequence, empirical studies often ignore dispersal or use indirect measures. 2. Ringing data have previously been used to estimate the natal dispersal distances of 47 British passerine bird species.
Dawideit, B. +4 more
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Dispersal distance of heterogeneous populations
Population Ecology, 2002AbstractHeterogeneity among individuals in a population is one of the important factors that influence the rate of population spread. To incorporate the population heterogeneity into dispersal rate, we assume that the traveling duration varies following a gamma distribution with a shape parameter k, where (1/k) indicates the heterogeneity in the ...
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“Dispersion” in Time-Distance Helioseismology
The Astrophysical Journal, 1998In time-distance helioseismology, travel time is the time taken by a wave packet to travel between two spatially separated locations on the surface of the Sun. It is computed by cross-correlating oscillation signals at the two locations and identifying the position of the envelope peak of the cross-correlation function, or the position of one of its ...
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An Example of Long Distance Dispersal
Ecology, 1954Bond, T. E., C. F. Kelly, and Hubert Heitman, Jr. 1952. Heat and moisture loss from swine. Agricultural Engineering, 33: 148-152. Bonsma, J. C. 1943. Influence of colour and coat cover on adaptability of cattle. Farming in South Africa, February, 1943. Brody, S. 1948. Environmental physiology with special reference to domestic animals.
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Debris size and buoyancy influence the dispersal distance of stranded litter.
Marine Pollution Bulletin, 2016Francesca M C Fazey, P. Ryan
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Individual variation changes dispersal distance and area requirements of a checkerspot butterfly.
Ecology, 2016Leone M. Brown, E. Crone
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Microsatellite analysis to estimate realized dispersal distance in Phragmitesaustralis
Biological Invasions, 2016M. McCormick, Hope Brooks, D. Whigham
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