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A species that is genetically diverse is more likely to survive in the event of a major change in it's environment, because of chance. A large swing in climate for instance, could entirely wipe out a species that was solely suited to a specific climate. However, if a portion of the species is more adaptable to a colder climate, and a portion is more adaptable to a warmer climate, even though a climate change would mean death for a large portion, a portion would be more likely to survive.
Laurence Aufderhar
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What are the Technologies that affect biological diversity?
Technologies that affect biological diversity include genetic modification. This will cause a loss in biodiversity.
What is the Sepkoski Diversity Curves?
The tendency of loss at extinction boundaries to appear, because of incomplete sampling, more gradual in the fossil record than it actually was during the extinction event.
Why reducing biodiversity can lead to new problems?
Reducing biodiversity of a population can result in a loss of allele and reduced overall fitness, ultimately resulting in a decrease in genetic diversity. This reduced population is now vulnerable to diseases due to reduced biodiversity (e.g. Great Irish Famine).
Why genetic drift affects the diversity of organisms in a small population?
Genetic drift in small population results in fixation of a gene or loss of gene affecting only that particular population . It has no direct effect on diversity of organisms .
How does genetic drift affect gene frequency?
loss of alleles
What could lead to a species going extinct?
Animals need enough room to survive, reproduce and room for their offspring to migrate to. With habitat loss, this is often not possible.
What are the Technologies that affect biological diversity?
Technologies that affect biological diversity include genetic modification. This will cause a loss in biodiversity.
What is the Sepkoski Diversity Curves?
The tendency of loss at extinction boundaries to appear, because of incomplete sampling, more gradual in the fossil record than it actually was during the extinction event.
What killed the thylacine?
The Thylacine was hunted to extinction after a bounty was placed on it, as farmers were concerned about the loss of their livestock. Scientists have also recently proven that, prior to its extinction, the Thylacine had limited genetic diversity. There is every chance that, were Thylacines still in existence today, they would most likely be facing similar problems currently faced by the Tasmanian devil.
What is depletion of biodiversity and natural resources?
Biodiversity - this applies both to the number of species on our planet, but also to the genetic diversity within each species. So depletion of species biodiversity is the (extinction) of species, which is hapening at a frightening rate right now, scientists have said that we are in the middle of the sixth greatest extinction event our planet has ever seen. Depletion of genetic diversity is the loss of variation of genetics within the species, this loss means that resilence to factors from viruses to climate are inevitably lost, leaving the species far more vulnerable, this is why a species that has been reduced to only a few will never properly re-establish, the genetic diversity required for resilience simply doesn't exist any more. Depletion of resources is the loss of those things we need or want, fossil fuels are being depleted, but more importantly our forests are being depleted - lost, you can consider biodiversity as a resource, because we really do rely on it. Water is being depleted, as is soil.
The primary goal of conservation biology is to?
Protect species from Extinction. Zack rose (;
What is One consequence of genetic drift is?
Loss of genetic variation(:Novanet:)
What may occur when a population drops below its minimum viable population size?
genetic drift, a further reduction in population size, inbreeding and a loss of genetic variability. it is an extinction vortex that the population may enter
Why reducing biodiversity can lead to new problems?
Reducing biodiversity of a population can result in a loss of allele and reduced overall fitness, ultimately resulting in a decrease in genetic diversity. This reduced population is now vulnerable to diseases due to reduced biodiversity (e.g. Great Irish Famine).
Can deforestation lead to extinction?
yes because it leads to the loss of environment for certain creatures, when they dont have a place to live and eat they go extinct
What is the cause of loss of diversity?
because its messing up the forest and acid rain is the reason there is loss of diversity
One consequence of genetic drift is?
Genetic drift usually only has effect on the genetic diversity of small populations of a species. Often times, genetic drift can greatly reduce the diversity of a population if a significant percent of members of the population leave by a chance event (as opposed to natural selection.) This means that their alleles for various genes leave with them. Genetic drift does not always effect genetic diversity. Most of the time, it is the allele frequency that is affected by genetic drift. For example, if there are 60 long-finned bass and 40 short-finned bass living in a pond, the gene frequency ratio is 3:2. If 25 short-finned are fished out, the allele frequency is now 4:1. If all or most of the members of a population carrying a specific gene were removed from the population because of genetic drift, that would effect the genetic diversity.
