Two Toed Sloths Habitat

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When determining the sloths’ selectivity for each habitat, only the available habitats were included in the calculation. An unavailabe habitat is one where it is uninhabitable due to a physical barrier. For example, in Figure 1 in the lower left hand corner is a lowland secondary forest. Although the sloths are able to live in such a environment, it is not included in the selection calculation since the mountainous environment is physically preventing the sloths from inhabiting the area. Using the Manly’s alpha formula it was determined that the two toed sloth, Choloepus hoffmanni, was selecting for the agriculture and old growth habitats, while selecting against the clear cut and secondary forest habitat. The the three toed sloth, Bradypus…show more content…
With little to no vegetation there is no food available for the sloths to establish a presence. For this reason both sloths select against clear cut regions. Although there are no sloths inhabiting the clear cut it is included in the selection calculation because there is no physical barrier preventing the sloths from inhabiting the area. C. hoffmanni is selecting for the agriculture region because the availability of a food. Two toed sloth consume a varied diet of leaves and fruits(Dill-McFarland et al. 2015). B. variegatus is selecting against the agriculture region because it can not consume the fruits and leaves present in the region. This is because B. variegatus has a gut biome suited for a diet of Cecropia leaves, while C. hoffmanni has a gut biome that supports consumption of a wider variety of fruits and leaves (Dill-McFarland et al. 2015). Old growth regions are undisturbed forest that have diverse tree species(White and Lloyed 1994; Zahler, Hino and Reed 2017). Both species select for old growth area because there is food available for both sloths due to the diversity of tree species. Because the variety of tree species in the old growth, C. hoffmanni is able to thrive; furthermore, the presence Cecropia trees in old growth allow B. variegatus to maintain a presence. Additionally, there is cover for both species of sloth to hide from predators further allowing both
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