Geoscience Reference
In-Depth Information
Temperature
16 − 22
10
0
10
0
10
0
9 − 16
22 − 29
10
-
2
10
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2
10
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2
10
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4
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-
4
10
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4
10
-
6
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0
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0
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40
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0
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0 10 20 30 40 50
Rank species in abundance
0
10
20
30
40
Figure 9
Rarefaction and species abundance: Observed (black thick lines) and pre-
dicted (red (dark grey) represents 10
2
replicates) predator rank species in abundance
for all environmental situations. Rows represent salinity and columns temperature
(
C). A sampling size of 10
3
individuals was sufficient
to recover the rank
species abundance for the 10 most sampled fish species.
species. Surprisingly there is not yet models that have attempted to
predict the cumulative number of prey species with increasing sampling
effort. In our model, interactions are just driven by random encounters
and so the only limit for predators to have a new prey species is its
abundance. Indeed the expected cumulative number of prey species, for
any given predator in the long term, is equivalent to the total number of
prey species in the ecosystem. The whole food web sampled in the
