Q: Using Tscharntke’s food web (1992) shown in figure 17.
Using Tscharntke’s food web (1992) shown in figure 17.5, predict which species would be most affected if you excluded the bird at the top of the web, Parus caeruleus. Wha...
See AnswerQ: The number of observations included in a sample, that is,
The number of observations included in a sample, that is, sample size, has an important influence on the level of confidence we place on conclusions based on that sample. Let’s exami...
See AnswerQ: How many species are there? This is one of the most
How many species are there? This is one of the most fundamental questions that an ecologist can ask about a community. With increasing threats to biological diversity, species richness is also one of...
See AnswerQ: The question we consider now is how to represent variation in samples
The question we consider now is how to represent variation in samples drawn from populations in which measurements or observations do not have normal distributions. When analyzing normally distributed...
See AnswerQ: In chapter 2 (p. 18) we determined the sample
In chapter 2 (p. 18) we determined the sample mean. However, while the sample mean is one of the most common and useful of summary statistics, it is not the most appropriate statistic for some situati...
See AnswerQ: In the study An Evaluation of the Removal Method for Estimating Benthic
In the study An Evaluation of the Removal Method for Estimating Benthic Populations and Diversity conducted by Virginia Tech on the Jackson River, 5 different sampling procedures were used to determin...
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