Competing critters Tree lizards are usually found on trees, while canyon lizards
ID: 91892 • Letter: C
Question
Competing critters
Tree lizards are usually found on trees, while canyon lizards are usually found on rocks. Both species feed on small insects which emerge shortly after spring rains. One summer, a researcher removed tree lizards from two plots while leaving them present in two other plots. Populations on all four plots were monitored by marking and recapturing lizards. After several months, canyon lizards in the experimental plots started using trees as well as rocks. They also survived better and thus became more abundant in the manipulated plots compared to the control plots.
Use this information and your knowledge of biology to answer the following questions.
ANSWER TRUE OR FALSE, AND EXPLAIN WHY.
1. The number of replicates for each treatment equals the total number of lizards on both plots.
2. Tree lizards likely compete with canyon lizards.
3. Tree lizards limit the realized niche of canyon lizards.
4. Canyon lizards limit the fundamental niche of tree lizards.
5. The two species coexist by spatially partitioning their environment
Explanation / Answer
According to the Chegg guidelines I'll answer the first four subparts of questions when more than one question is posted.
1) Flase-
Because the number of survivors after removing the lizards from Two plots are abundant in number from the number removed from two plots.
2) true
Because they have same source for eating that is insects so they likely compete with each other.
3) true.
If it wasn't true then the Canyon lizards would have come to the trees before they were removed.
4) false-
Because fundamental niche is still available for both of the species. That is tree lizards can use rock and tree both and vice versa for Canyon lizards.
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