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TLS Online TPP Program

#Question id: 12567

Which of the following is true about the current research about forest fragmentation?

#Section 5: Applied Ecology & Evolution
  1. Fragmented forests support a greater biodiversity because they result in the combination of forest- edge species and forest interior species.
  2. Fragmented forests support a lesser biodiversity  because the  forested- adapted species leave,  and  only the edge and open- field species can occupy fragmented forests.
  3. Fragmented forests are the goal of conservation biologists who design wildlife preserves
  4. Harvesting timber that results in forest fragmentation results in less soil erosion.
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TLS Online TPP Program

#Question id: 11978

#Section 1: Ecology

Which of the following statements about the ocean pelagic biome is true?
TLS Online TPP Program

#Question id: 16893

#Section 3: Mathematics and Quantitative Ecology

A random sample of 25 college males was obtained and each was asked to report their actual height and what they wished as their ideal height. A 95% confidence interval for μd = average difference between their ideal and actual heights was 0.8" to 2.2". Based on this interval, which one of the null hypotheses below (versus a two-sided alternative) can be rejected?
TLS Online TPP Program

#Question id: 10634

#Section 2: Evolution

Consider a population which is changing from one generation to the next as per the equation N(t) = R*N(t-1), where N(t) represents the size of the population at time t and R is a constant growth parameter. Under what condition is the population likely to go extinct?
TLS Online TPP Program

#Question id: 10840

#Section 1: Ecology

Why are monarch butterfly’s toxic?
TLS Online TPP Program

#Question id: 10718

#Section 1: Ecology

A researcher collects data on plant species composition in two habitats (P and Q) by using 10 quadrats each in both habitats. She calculates the average a-diversity and the 13-diversity of each habitat from this data (shown below). Which of the following can be inferred about these habitats? 

A) Q has greater total diversity (γ) and more heterogeneous than P

B) Q has lower total diversity (γ) and less heterogeneous than P

C) P has lower total diversity (γ) and more heterogeneous than Q

D) P has greater total diversity (γ) and more heterogeneous than Q