Nature, Količina 429Sir Norman Lockyer Macmillan Journals Limited, 2004 |
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Zadetki 1–3 od 73
Stran 175
... species were also selected at random , but con- strained so that the stressor had a negative effect on all species by decreasing their population growth rates . We defined the tolerance of a species i as the change in its equilibrium ...
... species were also selected at random , but con- strained so that the stressor had a negative effect on all species by decreasing their population growth rates . We defined the tolerance of a species i as the change in its equilibrium ...
Stran 176
... species remaining Figure 2 Responses of species tolerances to environmental degradation in various communities . a , Communities with interspecific interactions absent ; b , tritrophic communities ; c , monotrophic ( competitive ) ...
... species remaining Figure 2 Responses of species tolerances to environmental degradation in various communities . a , Communities with interspecific interactions absent ; b , tritrophic communities ; c , monotrophic ( competitive ) ...
Stran 868
... species richness is highest on reef slopes , intermediate on crests , and lowest on reef flats almost everywhere . Two other related measures of local diversity ( Fisher's alpha1 and the estimated number of species in each habitat at ...
... species richness is highest on reef slopes , intermediate on crests , and lowest on reef flats almost everywhere . Two other related measures of local diversity ( Fisher's alpha1 and the estimated number of species in each habitat at ...
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