What is the other component of species diversity besides richness? Briefly describe how two communities of trees might differ in that component.

What is the pyramid of numbers in a pond ecosystem?

Describe and give an example of how evolutionary and ecological processes drive biodiversity.

How does the ratio of the proportion of edge to interior habitat change with increasing patch size? How does species diversity change with increasing patch size?

Imagine you are a botanist. Below are characteristics of a never-before described plant species recently identified as part of the ‘All Taxa Biodiversity Inventory’ (ATBI).Organism 1Field Notes: Specimen collected from rocks on bank of streams from the Adirondack Park (NY). Plant growth form is more ‘prone’ than upright (plant seems to have little support).Laboratory Analysis:Body: Consists of three regions: light brown anchoring tissue (base of plant); Green vegetative area (middle of plant); Brownish-green, stalk-like structure bearing capsule at end (top of plant).Size: 8 cm in lengthChromosomal Analysis: Bottom two thirds of plant is haploid (chromosome # 10), while top third of plant is haploid (chromosome # 20).Lignin test: NegativeCuticle: PresentLeaves: Absent, though they do possess green photosynthetic structures. Contains chlorophyll a, b; B-carotenes; xanthophylls.Roots: Absent, though they do possess anchoring (possibly absorptive) structures.Stem: Absent, though they do…

You are hoping to get an estimate of the number of birch trees in a local park.  You have a satellite image of the park, and plan to use quadrat sampling to estimate the number of birch trees in the park.  The park is 1000m by 1000m.  Describe how you can set up your quadrat and how you would then use the data you collect to estimate the number of trees in the entire park. (Include a sample calculation).

Of the 50,000 species introduced into the United States, half are plants. Describe two ways in which non-native plants might be brought to a new environment. How might we help prevent non-native plants from establishing in new areas and posing threats to native communities?

Which animals represent a community?

How can you use your data to discourage or promote logging of natural forest for human consumption? If logging activities cause decline of species diversity, what alternatives do you propose to maintain the tree species diversity in natural forests?