you get genetic isolation,leading to evolution of separate,but similar races.
Indicator organisms are organisms that are sensitive to changes in the environment. When populations of indicator species changes, it can signal a change in the environment that will eventually effect other species as well.
Indicator organisms are organisms that are sensitive to changes in the environment. When populations of indicator species changes, it can signal a change in the environment that will eventually effect other species as well.
A nonnative species can disrupt the balance of an ecosystem by outcompeting native species for resources, preying on native species, introducing diseases, or altering the physical habitat. This can lead to declines in native species populations, changes in species interactions, and overall ecosystem instability.
Genetic driftChanges in the frequency of alleles within a population is called genetic drift. Over time, this can cause a significant phenotypic shift from other populations of the same species that have not had the same genetic drift. Given enough time, genetic drift can be significant enough to cause the affected population to be reproductively isolated from the rest of its species and eventually will develop into a new species.
city populations became poorer
A, they keep the populations of species balanced. Apex
Indicator organisms are organisms that are sensitive to changes in the environment. When populations of indicator species changes, it can signal a change in the environment that will eventually effect other species as well.
Indicator organisms are organisms that are sensitive to changes in the environment. When populations of indicator species changes, it can signal a change in the environment that will eventually effect other species as well.
A nonnative species can disrupt the balance of an ecosystem by outcompeting native species for resources, preying on native species, introducing diseases, or altering the physical habitat. This can lead to declines in native species populations, changes in species interactions, and overall ecosystem instability.
The largest effect of a reduction in bird populations is the increase in insect populations. Insect populations grow if there are fewer birds around to eat them.
They effect animal populations because...... They do! if this ain't the answer you want, well then...... DEAL WITH IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
When a species becomes better adapted to life on land, their populations may increase due to an expanded habitat range and access to new resources. This adaptation can lead to increased competition with other species and changes in ecosystem dynamics, which can further affect population size and distribution.
An important effect that hunter-gatherer societies may have had on the environment was, EXTINCTION.
They maintain biodiversity
Brian P. Bradley has written: 'Long-term biotoxicity of chlorine species to copepod populations' -- subject(s): Chlorine, Physiological effect, Copepoda, Effect of chemicals on, Water quality bioassay, Toxicology 'Adaptation of Copepod populations to thermal stress' -- subject(s): Copepoda
Probably the best documented example of the founder effect in action is the Galapagos islands. However the founder effect is seen much more commonly in mountainous regions. Mountains offer many various environmental settings which may cut populations apart. An excellent example of this are populations which cross onto the opposite side of a mountain range than the rest of their species. This is very frequently seen in birds.
Divergence in evolution refers to the process by which populations of organisms gradually accumulate differences over time, leading to the formation of new species. It occurs when ancestral populations become isolated or encounter different environmental pressures, causing them to adapt in different ways. Divergence is a key mechanism driving the vast biodiversity seen in the natural world.