Current models of the optimal diet are special cases of a more general (and complex) model which incorporates the effects of predation risk on diet selection; this follows from an assumption implicit in current models that all prey items are eaten where they are encountered. Relaxing this ...
However, it is possible that male sex characteristics that increased the likelihood of mating but decreased the likelihood of survival due to predation may have played some part in why birds have this specific system. For instance, if bright plumage is associated with Z sex chromosomes, it makes...
Question: What is an example of intraspecific competition? Competition: Competition in habitat may be experienced within animals of either similar or different species. The competition will emerge in the following circumstance: Limited Food. Limited space. ...
It actually increased predation on the dark-colored moths. It decreased the number of birds in the environment so predation of moths was less. 2. Why is the peppered moth phenomenon uncommon? Moths rarely adapt to their environment. Moths can fly away to new environments where they are bette...
Sharks have evolved mechanisms to rapidly heal wounds as they are susceptible to them due to both natural and anthropogenic threats in the open ocean. External injuries to sharks are a natural occurrence incurred through mating events, copulation or aggressive behaviors, or attempted predation events ...
The response of two different size classes of marine benthos, macrofauna and meiofauna, to manipulation of disturbance/predation and size specific utilizat... SS Bell,SA Woodin - 《Journal of Marine Research》 被引量: 76发表: 1984年 加载更多来源...
(Production) The act or process of generating electric energy. (Production) the accumulation of biomass by plants or animals before any losses from, for example, predation, migration. Production is the transformation of inputs(land, labour, capital, raw materials, etc) into output. (Production)...
What is a life raft ecosystem and what is an example of one? What eats phytoplankton and is a decomposer? Describe and give examples for all 7 microbial interactions which include mutualism, commensalism, cooperation, ammensalism, competition, predation, and parasitism. ...
A Theoretical Study of Morph Ratio Clines with Special Reference to Melanism in Moths A migration-selection model with frequency-dependent predation is described that can explain all the features of morph ratio clines. The model is applied t... GS Mani - 《Proceedings of the Royal Society B...
8). By contrast, participants of the key informant interviews all mentioned that the costs associated with living with wildlife – crop destruction and livestock predation in particular – had increased markedly in the past 15 years. According to survey data, the proportion of farmers guarding ...