A computer program for the analysis of allelic variation in population genetics and biochemical systematics Illinois Nat.
There is a great variation in population growth rates in Asia.
The reported wide variation in population response of herbivores to diverse agro-ecosystems is replicated in this study.
Spatial variation in population densities across a landscape is a feature of many ecological systems, from self-organised patterns on mussel beds to spatially restricted insect outbreaks.
The increase in extinction risk is associated with greater temporal variation in population size for models built from longer data sets.
However, strong year-to-year variation in population levels independent of forest disturbance means that very long time frames would be required to detect trends.
Matrix modelling was used to estimate population growth rates and elasticities, and life Table response experiments (LTREs) were used to assess the contribution of different life-history components to the observed variation in population growth rates between different management treatments.
Daily maximum apparent temperature was interpolated across space via kriging, and aggregated to 29 municipality groups (MGs), a spatial unit composed of municipalities that was designed to have minimal variation in population.
Variation in simulated NIP values can be explained by the fact that larval, nymphal, and adult tick loads were distributed differently among the different-sized hosts, each with their distinct range of movement and degree of variation in population size.
Despite the recent surge of interest in the concept of animal personalities, that is, temporally consistent individual differences in behavior, few studies have integrated intraspecific behavioral variation in population or community ecology.
In this paper we study the effects of environmental drivers of spatial, and indirectly temporal, variation in population size and sex-ratio of cold-adapted insects through a hierarchical framework for abundance.
