Analysis of a range of relevant examples of geographic barriers and their role in evolutionary processes

1. Discussion of the role of geographic barriers in evolutionary processes (20%)
2. Analysis of a range of relevant examples of geographic barriers and their role in evolutionary processes (60%)
3. A clear and reasoned conclusion (10%)
4. Identification of relevant texts which the report will refer to using the Harvard referencing system (10%)

Word count: 1500 words

Format: All text should be fully justified, with 1.5 line spacing. Include assignment brief, contents page, summary, introduction and conclusion. Reference relevant sources using Harvard Referencing system appropriate to the assignment handbook. Refer to your Assignment Handbook for further guidance.

Indicative reading:


Begon, M. Harper, J. & Townsend, C. (2005) Ecology: Individuals, Populations, Communities. Oxford: Blackwell Science

Cox, C.B. & Moore, P.D (1999) Biogeography: An Ecological and Evolutionary Approach. John Wiley & Sons

Journals & articles

Baums, I.B, Boulay, J.N, Polato, N.R & Hellberg, M.E. (2012) No gene flow across the Eastern Pacific Barrier in the reef-building coral Porites lobata. Molecular Ecology 21: 5418–5433

Gaither, M.R, Toonen, R.J, Robertson, D.R, Planes, S, Bowen, B.W. (2010) Genetic evaluation of marine biogeographical barriers: perspectives from two widespread Indo-Pacific snappers (Lutjanus kasmira and Lutjanus fulvus). Journal of Biogeography 37 133–147

Grigg, R.W. & Her, R. (1992) Paleoceanography of the Tropical Eastern Pacific Ocean. Science Vol. 255 no. 5041 pp. 172-178

Johnson, K.P. (2011) The Central American land bridge as an engine of diversification in New World doves. Journal of Biogeography. 38 (6): 1069-1076

Karr, J.R.(1982) Population Variability and Extinction in the Avifauna of a Tropical Land Bridge Island Ecology 63 (6): 1975-1978

Lessios, H.A. (2012) A sea water barrier to coral gene flow. Molecular Ecology 21: 5390-5392

Rocha, L.A. & Bowen, B.W. (2008). Speciation in Coral Reef Fishes. Journal of Fish Biology 72 (5) 1101-1121.

Steeves, T.E, Anderson, D.J & Friesen, V.L. (2005). The Isthmus of Panama: a major physical barrier to gene flow in a highly mobile pantropical seabird. Journal of Evolutionary Biology 18 (4) 1000-1008.

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