Need help for ecology, please and thank you! 1. D | Question 6 According to the

Question

Need help for ecology, please and thank you!

1.

D | Question 6 According to the concept of resource partitioning, which of the following attributes of species in a community would tend to lead to lower species richness? low levels of specialization high levels of specialization 1 pts D Question 7 The theory that describes species diversity of isolated habitats as a function of immigration (dispersal) and extinction rates is known as the pulse-dispersal paradigm Island biogeography theory the fly-or-die function habitat proximity hypothesis D | Question 8 1 pts At very large scales encompassing the regional level, species diversity is controlled by a filter related to (remember the filter funnel diagram used in class) - predation stress tolerance dispersal rates and abilities

Explanation / Answer

6) Option 1 is the correct answer.

Low levels of specialization would lead to lower species richness according to the concept of resource partitioning. The theory of resource partitioning assumes that species have reached a stable population size (carrying capacity) and that resources are limiting. Competing species are more likely to coexist when they use resources in different ways. Hence, a narrow resource spectrum leading to low levels of specialization will contribute to lower species richness.

7) Option 2 is the correct answer.

Island biogeographical theory proposes that immigration and extinction rates determine the equilibrium number of species found on an island (isolated habitat). An island's species richness is determined by 3 distinct processes: immigration, extinction, and evolution. Every species found on an island either immigrated to it from elsewhere or evolved in place - there are no other possibilities. Conversely, an island species can be lost when all individuals of that species on the island die or leave (known as local extinction).

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.