ENWC314 Lecture 5: ENWC314 Lecture 5 notes

• School: University of Delaware
• Department: Entomology and Wildlife Conservation
• Course: ENWC314
• Professor: York Joanna

Document Summary

New species: human ancestor, dinosaur, spider, etc. Some more modern and some in fossil record. Rationale: evolutionary speed, geographical area, interspecific interactions, ambient energy, productivity richness is limited by the partitioning of. More time and more rapid evolution permits the evolution of new species. Larger areas and physically or biologically complex habitats provide more niches. Competition affects niche partitioning and predation retards competitive exclusion. Fewer species can tolerate climatically unfavorable conditions production or energy among species: disturbance moderate disturbance retards competitive exclusion. Light, pressure, temp. , salinity, waves, and other factors vary w/ depth. Must be narrowly focused for each individual species. Changes in diversity w/ depth o suggests peak diversity in moderate depth and low diversity in shallow or very deep regions gastropod: mollusks, snails. Diversity decreases as elevation increases reference of tree-line: gamma diversity is the total species diversity in the landscape. Correspondence between latitude and altitude o o tropics are in the lower altitudes and latitudes.