Ans 1
B part
Loss of habitat
Ans. 2
A part
Density dependent factors exert a greater influence when there are more individuals, density independent exert a greater influence on all the individuals regardless of their number.

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= Endangered species sometimes breed in captivity. Why are such species endangered in the wild? A....
2. The degree how is for a rare species of antelope being bred in captivity. Populations of Sable antelope in Africa are in decline due to loss of habitat, and increased spread of disease a frequent drought. Conservationists are trying to breed more antelope in the hope of releasing m i nto the wild, so they can increase the size of wild populations. Since people started pred sable antelope in captivity, they found a mutant phenotype arise: antelope without horns...
Why is it more challenging for animals in the wild to learn behaviors when compared to animals in captivity? a. Animals have their whole environment to move through; they can move away from a problem solving task. b. There are social factors that could affect an animal's ability to learn. c. There are more distractions in a natural habitat. d. All of the above
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Could someone check my answers, please? 1. Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side. How could you determine whether the two populations constitute different species? A. Examine the populations for morphological, color, or other physical differences. B. Examine the populations for different genetic markers and allele frequencies. C. Attempt to breed members from the two populations in captivity. D. Introduce members from...
Let X be the total number of individuals of an endangered lizard species that are observed in a region on a given day. This observed number is assumed to be distributed according to a Poisson distribution with a mean of 3 lizards. The endangered lizards can belong to either of two sub-species: graham or opalinus. Let Y be the number of graham lizards observed during this study (note that the total observed number of any lizard is denoted by X,...
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anyone help me with these questions for ecology. thanks!
the 1000 IN-dN/dt A Population size the dN/dt = IN (K-N)/K y = 164.170.1387x bio Number of individuals 10 3512 909 95209 Time FIGURE 1 29 3 10 Time years FIGURE 4 Population densities of individual species 000.01 Environmental gradient- (such as temperature or moisture) 09 FIGURE 2 9812 909 Life table of a hypothetical population FIGURE 5 00001 Total # indiv in survivorship fecundity next time period Current #...