BIOL 302 Lecture Notes - Lecture 14: Indeterminate Growth, Genetic Drift, Serpentine Soil
17 Oct 2016
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Guest lecture 1: dr. paul martin (slides on onq) Trade-offs: factor for diversity in an environment, allows for species diversity, division of energy and resources. Trade-off allows fitness advantages in one function, but will decrease function in another: cannot have both. Involved in allocation of resource for offspring for females. Guest lecture 2: amanda cicchino (m. sc. candidate) and haley l. kenyon (ph. d. candidate) Selective pressure shaping intraspecific signal variation in the spring peeper. What organisms produce acoustic signals : many species. Genetic drift: heterogenous range - > east north america has a high abundance. Gathering in marshes that can exceed >1000 individuals and they all call at the same time. Use of phylogenetic trees: allopatry divergence genetic tree. Higher pitch: south > west > north: correlation with peak frequency. Predict that calls will transmit best in their native-habitat. Native habitats have less degradation from her findings.
