They have been those specimens that reproduce by parthenogenesis, that is, generating new individuals without the need to be fertilized. A priori, only this data could be understood as an evolutionary advantage: being an asexual buttercup increases the ability to colonize new areas. However, the work that Nieto Lugilde has developed in recent years has wanted to confirm this by crossing the information on the extent of herbaceous plants with the tree cover of the different alpine areas recorded in satellite images. In this way, it was intended to know how the coexistence of those flowers with the large trees that populate the Alpine forests affected its extension. The conclusions, published in the journal EcologyLetters, based on a simulation model, point to a multiplicity of causes. The first of them, beyond the obvious economy of any species –

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not needing another individual for reproduction Tunisia Email List is simply more advantageous – has to do with the fact that asexual individuals develop better at lower temperatures, which makes they can survive in adverse conditions with even lower temperatures and, therefore, also at higher altitudes. In addition, the study has confirmed that the sexual specimens, living at lower altitudes, have to compete with the large trees of the eastern area. All this allows them to better disperse through the mountain range. The adaptations of asexual specimens, then, An international team in which researchers from the National Museum of Natural Sciences (MNCN-CSIC) participate has verified that the colder the climate, the larger the size of the rib cage and it has a wider shape. The results, obtained after comparing the size of the thorax of different populations adapted to hot and cold climates,

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contradict the theories that postulate that humans do not undergo biological adaptations in extreme climates because cultural adaptations dampen others such as biological ones. According to the ecological rules of Allen and Bergman, warm-blooded animals suffer an adaptation to extreme climates (both cold and hot). These adaptations are reflected in body size and shapes. Animals adapted to cold climates are larger and have a more spherical complexion than their counterparts in warm climates where the forms are more stylized. These complexions help maintain a thermal balance as they promote heat loss in hot climates and retention in cold ones. “There is a current of thought that says that the human being is the only warm-blooded animal that does not comply with these ecological rules because the cultural adaptations we have would

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