Sentences with phrase «low population densities during»
Like other locusts, desert locusts can switch from a solitary phase with low population densities during recessions (periods of calm), to a gregarious phase with high population densities during invasions, when hopper bands and swarms can devastate agriculture.
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«Given the likelihood that the California sea lion population is approaching carrying capacity, density - dependent effects such as food limitation (and stranding) of pups may be a long - term consequence of a rebuilt sea lion population during periods of low abundance of high - quality forage,» the scientists wrote.
In 2008 a federal recovery plan stated that the white abalone «was driven to such low levels during the height of the commercial fishery that adults do not occur in high enough densities to successfully reproduce, contributing to repeated recruitment failure and an effective population size near zero.»
• Prototype early and deal with low populations density issues during the prototyping phase.