Lecture9_Populations10

Lecture9_Populations10 - ECOLOGY Dr. Krystal Rypien...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ECOLOGY Dr. Krystal Rypien krypien@ucsd.edu OfFce Hours: T/Th 9:45-10:45AM, York 3010 **Oct 29- Nov 17 only** By appointment, SIO campus Completing the assignments on time is critical for success! Be sure to pick up a mini-syllabus for this section of the course Where are we in BILD 3? Behavioral Ecology Evolution: Natural Selection & Speciation Ecology: Populations & Communities Ecosystems Humans: Conservation & Biodiversity Exam grades posted on 11/2 What is Ecology? A. A descriptive branch of science, focused mainly on observing nature B. Another word for environmentalism C. An interdisciplinary branch of science, combining evolution, physiology, chemistry, and geology CQ Ecology: study of the interactions between organisms and the environment Populations -- Communities -- Ecosystems How do we measure and describe populations? Objectives 1. Describe different ways we measure populations 2. Identify the scale and distribution of populations 3. Use demographic data to describe a population 4. Construct and interpret life tables and survivorship curves 5. Apply demographic data to management decisions What is a population? Group of organisms of the same species Occupy a particular space at the same time Is the deFnition of a population Fxed? Describing a Population 1. Density 2. Dispersion 3. Demography 4. Dynamics 1. Density What is density?- In physics, mass per volume- Individuals per unit What is population density ?- Number of organisms per area Measuring a Population Population ecologists take 3 approaches- Census- Proxy- Sampling Measuring a Population Census- Count every individual- Organisms must be easy to observe , not too numerous, and occur in an easily defned area Examples: Problems?Problems?...
View Full Document

Page1 / 10

Lecture9_Populations10 - ECOLOGY Dr. Krystal Rypien...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online