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allisonmara

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First of all, what is a niche? Niche of a particular species refers to the ways in which they interact with their environment. Fundamental niche is defined as the entire set of conditions under which a particular animal (refers to a population or species) can survive and reproduce itself. Realized niche is the set of conditions which is actually used by that animal, after interactions with other species (predation and especially competition) that has been taken into picture. The diagrammatic representation given below would explain this concept better. Now coming to the diagram, Consider comparing the natural resource map and population map with the diagram given above to understand the type of niche exhibited. Before concluding, it is also important to understand the nature of Bald Eagles. Bald eagles are sensitive to human activities, therefore they will make their nests as far away from human disturbance as possible. But in the picture given covers even areas where population is dense in the east. Moreover, most of their diet is comprised by fish, but they may also often eat the carcasses of small mammals like rabbits, hares, squirrels, raccoon, and other such terrestrial prey. They tend to live near wetlands, large coasts, inland waters, or marshes, from which they source their fish-based diets but the area covers even the central tropical and temperate grasslands. So, we can conclude that it denotes the Fundamental Niche of the Bald Eagles. Let us consider the two types of eagles: They might look similar but belong two different species. According to the most widely used species definition, the biological species concept, a species is a group of organisms that can potentially interbreed, or mate, with one another to produce viable, fertile offspring. Gene flow is otherwise called as gene migration. Gene flow can take place between two populations of the same species through migration, and also between different species. In such cases, where the inbreeding members are biological species, then the gene flow is is mediated by reproduction and vertical gene transfer. In such cases, the offspring contains the gene which would be expressing the characteristics of both the parents.
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