2.1 chemistry’s building block: the atomfaculty.mtsac.edu/cbriggs/biol-1 communities and...
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Ecological Dominants
Figure 35.1
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Keystone Species
Figure 35.2
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zerohedge.com
Food web?
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Food webs
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mlms.loganschools.org
Food webs
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Food webs
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Food webs
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Dunne et al. 2013. PLOS Biology.
Green = producers Red = consumers Blue = parasites
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High biodiversity Low biodiversity
(a) Species diversity
(b) Geographic diversity
(c) Genetic diversity
Figure 35.3
Diversity
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(a) Competitive exclusion
(b) Resource partitioning
Popu
latio
n si
ze
P. aurelia
P. caudatum
P. aurelia
P. bursaria
Time (days)
Time (days)
Popu
latio
n si
ze
X
Figure 35.4
Interactions
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Figure 35.6
Resource Partitioning
Cape May warbler
Bay-breasted warbler
Myrtle warbler
Interactions
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Plants Parasitizing Plants
Figure 35.7
Food webs
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Mutualism
Figure 35.13
Interactions
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Camouflage
Figure 35.10
Avoidance
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Mimicry
Figure 35.11
Avoidance
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Mimicry
Avoidance
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Mimicry
Figure 35.12
Avoidance
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Avoidance
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Avoidance
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Avoidance
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Avoidance
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Avoidance
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Figure 35.8
Lem
min
gs p
er 2
.5 a
cres
Lemming population
Stoat population
Lem
min
gs’ w
inte
r nes
ts
occu
pied
by
stoa
ts
per 2
.5 a
cres
10
1
0.1
0.01
1988 1990 1992 1994 1996 1998 2000
0.00001
0.1
0.001
10
2002 Year
Predator-Prey Dynamics
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Predator-Prey Dynamics
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