Biology Questions and Answers
Ecological
Succession
- What is ecological
succession?
Ecologicalsequence of communities that live succession is the changingin an (^)
ecosystem during a given time period.
- What are pioneer species?
What is the role of the pioneer
species?
Pioneer species arthat colonize places whe those first spere previouslyecies
there were no living example, algae that colonizbeings, like, foe bare rocks.r (^)
In general, pioneer species are
autotrophs oharmonious ecological interaction withr those that maintain (^)
autotrophic beings (like autotrophic
bacteria, herbaceous plants, lichens).
The pioneer commuspecies able to survivnity is formed ofe under hostile (^)
environments. The presence of these
species mogenerating chandifies thges in abiotic ane microenvironmd bioticent (^)
factors of the ecosystem undergoing
formation. Tto other species to herefore they open the wayestablish in the place (^)
by the creation of new potential
ecological niches.
- What is the difference
between primary ecological
succession and secondary
ecological succession?
Primary ecolchanging sequence of communities fogical succession is the (^) rom
the first biwhere previously there were no livingological occupation of a place
beings. For example, the colonization
and the followincommunities on a bare rock.g succession of
Secondary changing sequence of communities fecological succession is throme (^)
the substitution of a community by a
new one in a given place. For ethe ecological succession of the invasionxample, (^)
of plants and animals in an abandoned
crop or land.
- What is the climax stage of
an ecological succession?
The climax stage ecological succession in wis the stage ohich thf thee
community of an ecosystem becomes
stable changes. In the climaxand does not undergo significant community
practically all ecological niches are
explored and greater bpossible. In this stage thiodiversity ise biomass, (^) the
photosynthrespiration resis rate and the cellulareach their maximum levels (^)
and thus the net primary production
(NPP = organic material maproducers – organic materialde by the consumed (^)
in the cellular respiration of the
producers) tethe amount of oxygen released nds to zero. At the climaxby
photosynthesis is practically equal to
the oxygen consum(This is one more reason wed by respiration.hy it is
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