Allopatric speciation

    Page 1 of 2 - About 13 Essays
  • Allopatric Speciation Examples

    Speciation is a process in which organisms within a population evolve to become a new species over time. Charles Darwin believed that eventually a single species will split off into two different populations, becoming two new species. Some of the speciation modes are allopatric and sympatric, and polyploidy is a mechanism of speciation. Allopatric Speciation Allopatric speciation is a common mode of speciation in which a population of a single species becomes divided, geographically isolating part of that species from the other part. This can happen when a physical barrier, such as a desert or a city, divides the populations where one group of a species is on one side and the other group is on the other side, apart from one another. Allopatric speciation can also occur when populations of a species drift apart or disperse. When allopatric speciation occurs, variations and unique characteristics can flourish within a population, but be entirely different from other species populations found elsewhere. These variations occur as a form of adaptation and survival in response to their…

    Words: 777 - Pages: 4
  • Examples Of Adaptive Radiation And Species Diversification

    Allopatric speciation is when a physical barrier separates a population, forcing it to diverge into two separate species. For example, the formation of the Grand Canyon caused the inhabited squirrels to diverge, as this newfound geographic isolation forced this originally single population into separate species because the individuals could only breed with those in their same location. Peripatric speciation still carries out the same separation from a physical barrier as with allopatric, but one…

    Words: 1490 - Pages: 6
  • The Importance And Origin Of Diversity In Species

    species as it prevents speciation but causes diversity by combining two different gene pools. It decreases the differences between the two groups but inhibiting the creation of daughter species due to lack of barrier. Another effect of variation among a population is the genetic drift. This is when the frequency of different genotypes in a small population is altered due to disappearance of some genes due to random chance. The founder effect and the bottleneck effect also contributes to change…

    Words: 1665 - Pages: 7
  • Simpatric Speciation

    This article caught my eye in the first place because it reminded me of the apple magot fly simpatric speciation that we have studied and understood quite clearly in class. My first response to the whole simpatric and allopatric speciation was clear and it seemed to me that the apple maggot fly speciaton proved this concept. However simpatric speciation with the jays are considerably more unexplanitory, complicated, and as the article indicates, "weird". Katie Langin is the biologist in this…

    Words: 392 - Pages: 2
  • Speciation: Evolution Of Biological Species

    SPECIATION AND ADAPTATION Speciation is the evolution of biological species this is according to the Sage’s English dictionary and thesaurus. It is the continuous change in the genes of an existing specie until a formation of the new specie arise altogether. It is a result of two specie groups ceasing to share allele such that the genetic differences grow to the point of speciation. Many scientists have come up with different theories in an attempt to define and explain speciation, though…

    Words: 1741 - Pages: 7
  • Odobenid Compare And Contrast Essay

    and others adapted. In addition, there are too many similar or same traits that would not be parsimonious if they evolved multiple times for each of the different ancestors of the groups. 3. As discussed in class, explain the roles of r vs. k selection in the evolution of marine mammals. (2 points) R-selection allows evolution and adaptation to occur in shorter periods of time in comparison to K selection because r-selected groups have a shorter generational time and produce a larger number…

    Words: 1964 - Pages: 8
  • Sympatric Speciation

    scale changes occurring over paleontological time periods. To be specific, current understanding on speciation arising from the concept of reproductive isolation and the gradual evolution of the reproductive isolating mechanisms helps one to appreciate the biological species concept. If two species share a common ancestor and are completely different, their allele frequencies has changed over time A phylogeny arranges the species in order to reflect the relatedness by descent from a common…

    Words: 805 - Pages: 4
  • Forces Of Evolution Essay

    Grey moths were able to reproduce more, and thus passed on their advantageous grey-coloring trait. Isolating mechanisms are factors which stop two members of the same species from interbreeding. This prevents mutations which may be detrimental and could potentially cause the organism to be sterile and unable to pass on its genetic material. Isolating mechanisms can either affect the ability of organisms to conceive, affect the ability of an organism to carry an embryo to term, ensuring…

    Words: 797 - Pages: 4
  • The Little Golden Book Analysis

    the European and American children’s book illustration markets developed into vastly different “species” over time. At the time when the American market began the European market had a range of styles in production, but the most important is that they were able to produce books in duotone and full color. The American market on the other hand, although it had the same technologies in its possession, was only utilizing black and white and duotone at the same time. This is a prime example of modern…

    Words: 2181 - Pages: 9
  • Recombinant Dna Synthesis

    Speciation is the origin of new species. Species are a group of closely related organisms. The Biological Species Concept is a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring. Fertile means the ability to produce offspring. Viable is the capability of life. Diversity is the degree of variation of living things present. Diversification is the process by which the diversity of plants or animals develops and is increased within a…

    Words: 1949 - Pages: 8
  • Previous
    Page 1 2

Related Topics:

Popular Topics: