1 - BIO2210: ECOLOGY Lecture schedule: Wed. 10:30 am -...

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Unformatted text preview: BIO2210: ECOLOGY Lecture schedule: Wed. 10:30 am - 12:15 pm (SC L1) Fri. 10:30 am - 11:15 am (SC L1) Lecture: Prof. WONG Chong Kim Marine Science Laboratory 2609 6771 \ chongkimwong@cuhk.edu.hk Tutorial: Dr. CHIU Chi Ming Lawrence Science Centre EG01C 3163 4466 chimingchiu@cuhk.edu.hk References 1. Smith, T.M. and R. L. Smith. Elements of Ecology , 6th edition, Pearson, San Francisco. 2. Krebs, J.R. & N.B. Davis. An Introduction to Behavioural Ecology , 3rd edition, Blackwell Scientific Publications, London. Tutorial 6% Oral/poster presentation 12% Mid- term exam (Oct 5) 22% Final exam (to be scheduled) 60% Oral & poster presentations •work in groups of 3 to 4 students •each group of students will present a oral presentation or a poster presentation •read description for oral/poster presentation carefully •deadline for title: October 31 •presentation: end of November •more detailed briefing in first tutorial Ecology- study of the interactions between organisms- relationship between organisms & nature Four levels of concern : 1) Behavioral ecology - How behaviour affects survival, reproduction & population growth- Assumptions:- behaviour represents adaptation with survival value- behaviour is subject to natural selection Specific questions:- Why some animals aggressively exclude other, whereas other animals live in groups? eg. lions live in groups- group living allow lions to catch large prey- group members compete for food - disadvantages must be balanced by gains Four levels of concern : 1) Behavioral ecology 2) Population ecology- population = individuals of a species living in a specific place at a specific time- populations are dynamic systems – population size can increase or decrease How fast can populations grow? How populations are limited by food and predators? What control the size of a population? Practical questions: How many fish can we catch? How many tree in the forest can we cut? What level of exploitation is sustainable? Four levels of concern : 1) Behavioral ecology 2) Population ecology 3) Community ecology- communities = groups of animals & plants living in the same place Important questions: What determines the number of species in a community? (What is the biodiversity of life on earth?) How do we measure biodiversity? What regulates the biodiversity and composition of species in a community? How long are food chain? How many trophic levels are possible?- rapid decline in Earth’s biodiversity is a major issue- we can only preserve biodiversity if we know what controls biodiversity 4) Ecosystem ecology- biotic communities & physical environment Interesting questions: - What factors cause the global patterns in species richness? Ecologists use Scientific Methods- Description, explanation, prediction, experimentation & control (1) Observation → description- selective description- knowledge leads to explanation (hypothesis) eg. too much sewage discharge leads to red tides Proximal explanation- sewage water contains nitrogen...
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1 - BIO2210: ECOLOGY Lecture schedule: Wed. 10:30 am -...

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