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Chapter 26 Community Ecology, Interaction of spiceies, location factors…
Chapter 26 Community Ecology
Diversity
Diversity and scale
large=more diverse
more populations
Species-area relationship
Diversity and Latitude
north= less diverse
climate
Predator-prey Interactions
Predator selection among Multiple Prey
choice of prey
#
probability of encounter
decision after encounter
ease of consumption
optimal foraging theory
Competition Between Species
exploitation competition
shared recources
interface competion
One Predator, One prey
prey-dependent
zero growth isocline
paradox of enrichment
functional response
Apparent Competition
not actually competing for recources
Concepts
communities
community restoration
climax community
habitat
habitat loss
habitat fragmentation
Beneficial Interactions Between Species
#
mutualism
both benefit
facilitation
one helps but gets no benefit
nurse plants
Metapopulations in Patchy Enviroments
source habitat
high quality
sink habitat
low quality
four assumptions
occupation
colonization by migration
location
#
local extinction
Interconnections of species: food Chains and Food Webs
Food chains
choose one predator
Food webs
network of prey
energy flow web
keystone species
Interaction of spiceies
location factors with diversity
food chains also are determined by choices
