Sentence examples similar to scarce population size from inspiring English sources

Self-pollinating populations are more likely to establish in habitats where pollinators appear to be scarce, in which population size is small [ 8], and in environments with limited opportunity for outcrossing [ 9].

Data on prevalence of injecting drug use in Germany are scarce, and estimations of population size in past studies used a multiplier method based on treatment data, police contacts and reported drug related deaths [ 48].

This situation changes when food, which limits the population size, is scarce and individuals must travel farther to find food sources (Boersma 1976, Vargas et. al. 2005).

We propose the use of predictive modelling tools to strengthen conservation actions not only for rare raptors but for the 238 endemic and threatened birds of the Neotropics with scarce data, small population sizes, restricted distributions and often specialist habits.

Knowledge on distribution, occupied habitats, population size and prey availability is scarce in most populations.

Detailed data on variance in population size in the context of biological control are scarce, which limits the power to quantify the intensity of stochastic processes during establishment phase.

We found that infochemicals mainly had a net positive effect on population size and population persistence in situations where resources are scarce or difficult to find or when the (local) population of fruit flies is small.

Estimation of the effective population size of C. resedifolia and C. impatiens will be useful to verify whether this parameter can explain the scarce evidence for positive selection in our dataset.

Ne: effective population size.

Effective population size.

The vote was weighted by population size.