{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

emery_lecture_21

emery_lecture_21 - Lecture 21 I Introduction to community...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 21 I. Introduction to community structure - community – set of coexisting and potentially interacting species - community structure – patterns of species abundance and population interactions within a community - competition, predation, mutualism - attributes: types of species present, relative abundance, vegetation characteristics, trophic relationships vs: community function – patterns of energy flow - very different from community structure - usually includes 1 thing (coral reef community, pond community) # of have a few of one dominant species and species a lot of rare species frequency class How much of a discrete unity is a community? Clemensian vs. Gleasonian 1. F.E. Clements (1916,1936): “organismic” view of communities – “superorganism” - a community is a unit 2. H.A. Gleason (1926,1936) : “individualistic” community concept; “continuum” concept - individualistic nature of species distribution - no tight ecological ideas necessarily Clements “closed” discrete communities, little transition community
Background image of page 1

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

View Full Document Right Arrow Icon
Gleason random; current view “open” community species aren’t tightly coevolved
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

emery_lecture_21 - Lecture 21 I Introduction to community...

This preview shows document pages 1 - 3. Sign up to view the full document.

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