As one this is removed from a food chain the whole thing goes out of wack, say mice go extinct what ever used to eat the mice will now have to find a new food source and whatever it chooses numbers will start to decrease and so on a whole habitat can be screwed over
When species become extinct their prey can increase their numbers because they are not being eaten. Predators of the extinct species may suffer because their food supply decreases.
Extinction decreases the reproductive power of a biodiversity. The extinction of any species affects the predator/prey relationship in the ecosystem.
coevoultion
Do your own hw
Macroevolution The development of a new species is called speciation.
Extinction
As part of the environment of other organisms humans can have great effects on speciation. Especially adaptive radiation. As we contribute heavily to the extinction of some species other species flow into those open niches and radiate outwards to possible speciation.
The influence of providing an explanatory mechanism for what was obvious to Darwin; species arose and species went extinct.
The distance between the islands meant that the Fincehes on different Islands could not interbreed wich led to some extinction
Allopatric speciation.
sympatric , allopatric and parapatric speciation
Isolation Is necessary for speciation to occur.
Actually it is.
speciation
Speciation can happen for a variety of reasons, but typically it's some sort of environmental change such as changes in relevant prey and other food sources, changes in the relevant predators, changes in the climate (i.e. temperature changes, rainfall changes, etc.), etc. Speciation or extinction will occur as the eventual result of any evolutionary dead end; though the creature may fail to adapt (aka evolve), the environment is going to change eventually.