Introduction to Ecology

Introduction to Ecology - Click to edit Master subtitle...

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Click to edit Master subtitle style 7/15/11 GENERAL Ecology Dr John Griffin I. Introduction and Part II overview II. Lecture 1: Sex and Sociality
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7/15/11 About me Post-doctoral Associate in the Silliman Marine Community Ecology Lab l My research explores how species diversity influences ecosystem functioning. l http//:www.sillimanlab.com – check out the whole lab
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7/15/11 General Ecology: Part II Sex and sociality l Population ecology l Competition l Predation l Positive interactions l Food webs l Disturbance ecology l Island Biogeography
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7/15/11 Reading Required: r Chapters in Ricklefs l Papers – posted on the website in due course l We’ll go over the hypotheses, approaches and main findings of these papers in class Optional Extras:
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7/15/11 LECTURE 1 : SEX AND I) Live fast and die young? Trade-offs and life histories l II) ‘It’s complicated’: Sex and mating systems l III) Interacting with others: secretly selfish
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7/15/11 I) Live fast and die young? c Reproducing early Reproducing later Maintenance ALLOCATION ?? Reproduce often?
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7/15/11 Components of Life Life history = Life schedule Most important components of LH: l 1) Age at maturity (reproductive) l 2) Parity (number of reproductive events) l 3) Fecundity l 4) Longevity Life Histories all revolve individuals
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7/15/11 Variety in life-histories in Semelparity = all-out single bout of reproduction Iteoparity = repeated reproductive efforts
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7/15/11 Fitting life history traits to Tropics Arctic Increasing foraging time during breeding season, increasing resources for feeding young Lack’s hypothesis: clutch size is adjusted to maximize fledgling success and therefore Observat ion
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Introduction to Ecology - Click to edit Master subtitle...

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