Mark-Recapture

Mark-Recapture. Goal is to get an estimate of total population. Trap animals, mark and release. Repeat trapping and count captures of marked individuals. Important to know if closed or open population. Closed populations. No individuals enter or leave the population between surveys.

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Capture/Recapture

Capture/Recapture. Imagine you have a population and you want to know how big it is BUT it is unrealistic to count the animals in the population. A population of fish... . Take a sample. Count the number in your sample and Mark or Tag …. 7. Release the sample. Now capture a second sample.

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BRIEF INTRODUCTION TO CLOSED CAPTURE-RECAPTURE METHODS

BRIEF INTRODUCTION TO CLOSED CAPTURE-RECAPTURE METHODS . Workshop objectives. Basic understanding of capture-recapture Estimators Sample designs Uses and assumptions. Detectability and abundance estimation. N = true abundance C = catch p = probability of capture E(C)= pN.

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Principles of Capture-Recapture

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BRIEF INTRODUCTION TO ROBUST DESIGN CAPTURE-RECAPTURE

BRIEF INTRODUCTION TO ROBUST DESIGN CAPTURE-RECAPTURE . Original Motivation. CJS models permit estimation of survival and are robust to heterogeneity in capture probabilities. JS models allow abundance estimation and recruitment but…

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Capture - Recapture

Capture - Recapture. Make a new page in your notebook: Proportions – Capture Recapture. Update your TOC . What do you think? Answer this question in your notebook. Estimating. Ping Pong Balls! http://www.youtube.com/watch?v=tyX79mPm2xY. Capture ReCapture !.

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Capture, Mark & Recapture

Capture, Mark & Recapture. Populations Estimates AP Environmental Science. C-M-R. How do we estimate the number of animals out there? Elk? Wolves?. Lincoln-Petersen Technique. 1. Capture animals and mark all that you caught 2. Release these animals

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ReCapture

ReCapture. A Pattern-aware B enchmark Tool for Smartphones. Motivation. How can we know the performance of Android OS, 3G/4G network, energy on the phone? Experiment (Benchmark) Data trace of metrics Analysis. Benchmark. PC Unlimited energy

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Power analysis for a Mark recapture project

Power analysis for a Mark recapture project. Dan Bachen Department of Ecology Montana State University. Project overview. Data collection Blacktail WMA 24 plots 4 weeks . Mark Recapture. Data collection Methods Trap grids 8x8 Sherman live traps 5 nights per plot Unique marks

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Capture/Recapture

Capture/Recapture. Imagine you have a population and you want to know how big it is BUT it is unrealistic to count the animals in the population. A population of fish for example... . Take a sample. Count the number in your sample and Mark or Tag each of them …. 7. Release the sample.

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Recent Advances in Capture-Recapture Methods

Recent Advances in Capture-Recapture Methods. Department of Mathematics and Statistics. A meeting of the RSS Reading Local Group and the Department of Mathematics and Statistics, University of Reading, UK 9.15am to 5.30pm, Tuesday 24 May 2011

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Capture - Recapture

Capture - Recapture. Capture-recapture is a method commonly used in ecology to estimate an animal population’s size. How does it work?. A portion of the population is captured, marked, and released.

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Fair Bandwidth Allocation in the Internet Using a Capture-Recapture Model

Fair Bandwidth Allocation in the Internet Using a Capture-Recapture Model. Hong Kong University of Science and Technology Lawrence, Chan Ming Kit Mounir Hamdi. Presentation Outline. Motivation Previous Works Introduction To The Capture-recapture Model Proposed Solution

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Mark Recapture

Mark Recapture. An application: Estimating Steller sea lion pup mortality. Steller sea lion numbers have declined 70-90% since 1950s; now listed as endangered Is mortality of pups an important factor in population decline?

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Capture-Recapture

Capture-Recapture. Work with the idea of a sample Become familiar with representative samples Understand the capture-recapture method. Fish in the Lake. Page 103 Materials Needed A paper bag White beans Red beans.

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Mark Recapture

Mark Recapture. Lab 10 Fall 2011. Why?. We have 4 goals as managers of wildlife Increase a population Decrease a population Maintain a population Monitor a population. Achieving our 4 goals. What tools do we have thus far to do this? Map species distributions

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Energy Recapture Technologies

Energy Recapture Technologies. 11720336 Kozo Nagata. What is energy recapture?. Currently , many energy are generated. But over 60 % of that energy is thrown away. So , the method storage these extra energy and pick up the energy when it is needed have gotten attention.

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Mark-Recapture

Mark-Recapture. www.trulynolen.com. www.severinghaus.org. What can we use Mark-Recapture for?. Estimating population sizes Changes over space or time. www.thehindu.com. www.blogconservation.org. Mark-Recapture Issues. www.etsy.com. Mark-Recapture Issues.

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BRIEF INTRODUCTION TO OPEN CAPTURE-RECAPTURE METHODS

BRIEF INTRODUCTION TO OPEN CAPTURE-RECAPTURE METHODS. Open Population Estimation. Populations open between sampling periods Immigration/emigration Birth/ death Population rates often of interest: Survival Recruitment Exploitation Movement (abundance)

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BRIEF INTRODUCTION TO ROBUST DESIGN CAPTURE-RECAPTURE

BRIEF INTRODUCTION TO ROBUST DESIGN CAPTURE-RECAPTURE. Original Motivation. CJS models permit estimation of survival and are robust to heterogeneity in capture probabilities. JS models allow abundance estimation and recruitment but…

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Confidence Intervals for Capture-Recapture Data With Matching

Confidence Intervals for Capture-Recapture Data With Matching. Stephen Sharp, National Records of Scotland. The Problem (i). You have undertaken a (presumably imperfect) enumeration of a given population. You then undertaken a second (also presumably imperfect) coverage survey .

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Capture-Recapture

Capture-Recapture. Work with the idea of a sample Become familiar with representative samples Understand the capture-recapture method. Fish in the Lake. Page 103 Materials Needed A paper bag White beans Red beans.

223 views • 9 slides