# Lecture_7_w_o_answers - Midterm on Tuesday Will not include...

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Unformatted text preview: Midterm on Tuesday Will not include material from today’s lecture This weeks section reading will be on the exam Make-ups will only be granted for those with medical or family emergencies. Review session Sunday 2:30-4:00, Harold Frank Hall 1104 Sample questions on the website. DSP students NEED a proctor. Please let DSP know today so they can provide one. No calculators H Equations you should understand and memorize: λ = e r Estimate of Population Size = # captured and marked day 1 1 Fraction marked (from 2 nd date) × N N t t λ = d b- + = 1 λ r = b- d rN dt dN = rt t e N N = r = λ ln + + = × dy cx by ax y x d c b a t t N N λ = + 1 mp p cp dt dp-- = ) 1 ( H c m p- = 1 * mp d p cp dt dp--- = ) 1 ( d c m p-- = 1 * - = K N N r dt dN 1 max Spotted Knapweed Which area is more likely to be invaded by knapweed? I. What are biological invasions? I. Different stages of the invasion process A. Introduction B. Establishment C. Spread D. Impact I. Puzzles in invasion ecology A. Why are species benign in their native range so invasive in their exotic range? Lecture 4: “Biological Invasions” H What are Biological Invasions? Species that have been accidentally or intentionally transported outside of their native (historic) range, and spread in their new environment. Percentage of U.S. imperiled species threatened by: Habitat Degradation/Loss 85% Biological Invasions 49% Pollution 24% Overexploitation 17% Disease 3% Wilcove et al. 1998 Todd Long Transport of invader outside its historic range Population growth from low density Spatial expansion across the landscape Effect on resident species Stages in the Invasion Process How are exotic species transported?How are exotic species transported?...
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## This note was uploaded on 11/11/2010 for the course EEMB 120 taught by Professor Nisbet during the Fall '08 term at UCSB.

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Lecture_7_w_o_answers - Midterm on Tuesday Will not include...

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