Efforts to save endangered species may, paradoxically, lead to conservation-induced extinction of other species – a phenomenon summarized by a recent study. It mostly threatens the parasite and pathogen species that are highly host-specific to critically endangered hosts. When the last individuals of a host species are captured for the purpose of captive breeding and reintroduction programs, the...[Read More]
Abiotic stress is defined as the negative impact of non-living factors on the living organisms in a specific environment. The non-living variable must influence the environment beyond its normal range of variation to adversely affect the population performance or individual physiology of the organism in a significant way.
Whereas a biotic stress would include such living disturbances as fungi or h...[Read More]
576 pages , University of Chicago Press , 2008-09-15 Foraging is fundamental to animal survival and reproduction, yet it is much more than a simple matter of finding food; it is a biological imperative. Animals must find and consume resources to succeed, and they make extraordinary efforts to do so. For instance, pythons rarely eat, but when they do, their meals are larg...[Read More]
Assimilative capacity refers to the ability of a body of water to cleanse itself; its capacity to receive waste waters or toxic substances without deleterious effects and without damage to aquatic life or humans who consume the water. It is level to which water body or nature control the toxicity without effecting the aquatic life.
Human health and welfare, food security, industrial development a...[Read More]