Animal Communities in Geography
GOOD AFTERNOON TO ALL
BIO – GEOGRAPHY
TPOIC:ANIMALCOMMUNITY
DAY ORDER:III
DATE:21.08.2020
TIME :2:30 TO 3:30
S.NITHYA
LECTURER IN GEOGRAPHY
GCWK(A)
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ANIMAL COMMUNITY
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•
For example, a
forest
of
trees
and
undergrowth
plants
, inhabited
by
animals
and rooted
in
soil
containing
bacteria
and
fungi
,
constitutes
a biological
community
.
The various species in a community each occupy their own
ecological
niche
. The
niche
of a species includes all of its
interactions with other members of the community,
including
competition
,
predation
,
parasitism
, and
mutualism
.
The organisms within a community can be positioned
along
food chains
by showing which eats which, and these
positions are known as
trophic levels
. The first level includes
the producers—the
photosynthetic
plants—which convert
the
Sun’s
radiant
energy
into
nutrients
available to other
organisms in the community. These plants are eaten
by
herbivores
(plant-eaters, or primary consumers), the
second
trophic level
. Herbivores are, in turn, eaten
by
carnivores
(flesh-eaters), which are frequently eaten by
larger carnivores (secondary and tertiary consumers,
respectively). The
food chain
ends when the last link dies and
is attacked by various bacteria and fungi, the decomposers
that break down dead organic matter and thereby release
essential nutrients back into the
environment
.
THANKS TO ALL
Animal communities are formed by various species occupying the same habitat or microhabitat, interacting within a biological community. Each species has a unique ecological niche, influencing interactions like competition and predation. Communities consist of producers, herbivores, carnivores, and more, organized into trophic levels along food chains. Explore the dynamic relationships within these ecosystems.
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Presentation Transcript
GOOD AFTERNOON TO ALL GOOD AFTERNOON TO ALL BIO BIO GEOGRAPHY GEOGRAPHY TPOIC:ANIMALCOMMUNITY TPOIC:ANIMALCOMMUNITY DAY ORDER:III DAY ORDER:III DATE:21.08.2020 DATE:21.08.2020 TIME :2:30 TO 3:30 TIME :2:30 TO 3:30 S.NITHYA S.NITHYA LECTURER IN GEOGRAPHY LECTURER IN GEOGRAPHY GCWK(A) GCWK(A)
Species: Species: Individual organisms that Individual organisms that can interbreed to make fertile off can interbreed to make fertile off springs springs Population: Population: Total number of a Total number of a species in a given place/time species in a given place/time Community: Community: A combination of more A combination of more than one population in a place than one population in a place Therefore: Animal Community is Therefore: Animal Community is simply the various species of simply the various species of animals in an habitat or microhabitat animals in an habitat or microhabitat or occupying the same niche. or occupying the same niche.
ANIMAL COMMUNITY If one considers all of the various If one considers all of the various populations that are found in a given populations that are found in a given area, that is known as a biological area, that is known as a biological community. community. For example, all the organisms living For example, all the organisms living on a dead tree can be considered a on a dead tree can be considered a community. Various species of worms, community. Various species of worms, insects, moles, moss, insects, moles, moss, fungi, etc. will all reside there and carry out various all reside there and carry out various niches. niches. fungi, etc. will
Community Community, also called biological community community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community. biological
The various species in a community each occupy their own ecological niche. The niche of a species includes all of its interactions with other members of the community, including competition, predation, parasitism, and mutualism. The organisms within a community can be positioned along food chains by showing which eats which, and these positions are known as trophic levels. The first level includes the producers the photosynthetic plants which convert the Sun s radiant energy into nutrients available to other organisms in the community. These plants are eaten by herbivores (plant-eaters, or primary consumers), the second trophic level. Herbivores are, in turn, eaten by carnivores (flesh-eaters), which are frequently eaten by larger carnivores (secondary and tertiary consumers, respectively). The food chain ends when the last link dies and is attacked by various bacteria and fungi, the decomposers that break down dead organic matter and thereby release essential nutrients back into the environment.
THANKS THANKS TO ALL TO ALL
