Examples from vertebrate radiations indicate a weakening of disruptive selection during the course of environmental perturbations and concomitantly an increase in hybridization between coexisting species, as the distribution of feeding resources and/or habitats for breeding becomes homogenized and prezygotic and extrinsic postzygotic reproductive isolation weakens.
The ability of animals to collect and use environmental information in fragmented landscapes may considerably decrease as the spatial scale at which they search for feeding resources increases.
Although none of the cases of infant-directed aggressions we observed took place during contest competition for feeding resources, the dietary overlap between spider monkeys and howler monkeys is considerably high in this forest fragment.
We hypothesise that successful generalists, such as the starling, compensate for feeding resource difficulties (poor quality of food, accessibility) in habitats such as urban ecosystems and that its behavioural flexibility allows for similar breeding performance in rural and urban areas.
Rangeland ecosystems provide multiple ecosystem services, including feed resources for wild and domestic herbivores in semi-arid areas.
Similarly, 34%% of the respondents from the intervened woreda mentioned that they rely on grasses and bushes as major feed resources for their livestock.
The feeding experiment was conducted to evaluate the efficacy of locally available feed resources for Tra catfish (Pangasianodon hypophthalmus) cultured a series of 21 hapa net cages installed in the earthen pond during a 4-month period.
The dehydrogenation process is not only of great significance for the integrated utilization of C4 hydrocarbons made from oil refining, and broadens the feed resources for manufacturing MTBE, MMA, butadiene, synthetic rubbers, etc.
Rangeland ecosystems provide multiple ecosystem services, including feed resources for wild and domestic herbivores in semi-arid areas (Eldridge and Delgado-Baquerizo 2016), in addition to reducing the concentration of atmospheric carbon dioxide (IPCC 2007).
In the study reported here, feed resources for the livestock enterprise, which is largely made up of cattle, goats and sheep, were studied in detail over the course of a single winter feeding season.
