General Ecology_Mahaffy_Date__051310

General Ecology_Mahaffy_Date__051310 - Ecosystem ecology...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Ecosystem ecology continued Figure 20.7 continued Consumption efficiency How efficient are the consumers at consuming what’s available? I/P n-1 Assimilation efficiency A/I Production efficiency How good do you produce from what you assimilate? P n /A Net production efficiency What you produced divided by what you ingested P n /I Patterns in ecosystems Assimilation efficiencies Increase at higher levels Meat is easier to digest Herbivores have worse assimilation efficiencies Carnivores have better assimilation efficiencies Net production efficiencies Decrease at higher levels Animals have a higher metabolic rate Plants have a lower metabolic rate than animals do Food chain length Generally limited by net production efficiency, not primary production Food web complexity Increased production can increase complexity Doesn’t increase food chain length Can support more species of consumers Pathways of energy flow Depends upon efficiencies Different in different ecosystems
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/29/2010 for the course BISC 302 taught by Professor Walsh during the Spring '08 term at University of Delaware.

Page1 / 4

General Ecology_Mahaffy_Date__051310 - Ecosystem ecology...

This preview shows document pages 1 - 2. Sign up to view the full document.

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