sexta-feira, 21 de setembro de 2012

Monodelphis osgoodi especiation paralels Mazama chunyi

Monodelphis osgoodi especiation paralels Mazama chunyi

Above we have a CLIMATIC MAP of north-central region of South America
In black the geographic distributions of 3 species of Mazama, and in red the distribution of Mazama mephistophiles. All are indicated by black lines. The arrows in red indicate the points where spatial climatic variations in the environment generating disjunctions causing speciation. As I have shown in other previous posts, we can correlate the extreme climatic variations of the year, with the extreme climatic variations of the climate history of the planet. These correlations are however dependent on the shape of the continent, can not be extrapolated to the Cretaceous periods, when the continent should have another weather pattern. Thus, we can understand and explain a little about the weather events that generated the species of Mazama puda group, of the genus Mazama. If we compare the distributions of species M. bricenii and M. rufina, which are very close, according to the observations of Zoologists that have studied it, the climate will give us a plausible explanation for both, the processes of speciation as to the degree of similarity existing between them. We also found obvious correlations to explain the isolation of M. Chunyi and how "extreme" modification of M. mephistophiles, making the  mentality : "gradista" put it in a separated genus.M. bricenii and M. rufina are related to the great mass of moisture in northern South America M. Chunyi is related to a small mass of moisture, which lies further south, which may not only be related to this species of deer, but also to Monodelphis osgoodi, and with a number of endemic species that inhabit the same region, which I called "Bolivia-Peru Triangle." Finally Mazama mephistophiles and their extreme degree of differentiation with respect to the group, is perfectly relatable to the middle region, where the humidity never reaches, presently, the same rainfall observed in the others distributions areas.Although we are analyzing a specific group, this entire analysis can be perfectly related to the evolution of the distribution of organisms in South America. Actually that's my ultimate goal, a work which aims more, share my vast knowledge in this study very hard, which is the BIOGEOGRAPHY, which can only be made by zoologists favored by GOD!
Like this humble BEING who speaks to you, through writing. Note that Mazama mephistophiles speciate in the intermediate area, but moved to another area, shared in part with Mazama rufina. Perhaps we could talk in parapatric distributions, with separation by altitude difference. Since M. rufina lives at an altitude ranging between: 1500-3500 meters and Mazama mephistophiles between 2000-4000 m.
Probably not compete in this area of overlap, because the plants which are used to feed probably also have a similar distribution with overlapping!