Final Project Biology - Ecosystems and Communities (REUPLOADED) - Lake Harding Association

Final Project Biology – Ecosystems and Communities (REUPLOADED)

Final Project Biology – Ecosystems and Communities (REUPLOADED)

By Micah Moen 0 Comment August 14, 2019


Hello everyone my name is Kenneth I hope
you’re having a wonderful day wherever you are
so today in this video I’m going to be talking about a really special biology
topic I like. It is about ecosystems and communities so the first topic is 4.1 which is about climate and there are four important concepts to to
take care to mind in this topic the first one of them is climate which is
the which is about the temperature the precipitation and all those kind of
factors in specific area and the other concept is weather which
is the day to day atmosphere conditions in a certain area but there are also a
other two – factors to mind the first one is a microclimate which is a climate
within a the same area however these climates usually change
thanks to other factors and the last concept to mind is about greenhouse
gases because these gases trap solar heat inside the planet which raises the
global temperature a few degrees which also affects all climates around the
world which is the mainglobal warming. so topic 4.2 is about niches and
community interactions and there are several important concepts in in this
topic the first one is tolerance which is the
ability of a living being to survive and to reproduce under certain conditions
which might put stress on him. The second one is habitat which is the place in
which a certain individual or species lives
The third one is the niche which is the resources the species needs. No two
species can occupy the same niche at the same time because it would cause trouble
between. A resource is the material that nature usually gives to other
beings like sunlight, air, water, food, etc the competitive exclusive principle is
a principle that states that species that needs certain common needs it will
usually compete among themselves to to get those resources Another concept is keystone species
which are the most important species in a certain ecosystem or habitat and if
they disappear usually the habitat will go into into chaos and there’s a final
concept, symbiosis which is a relationship between two species This relationship is usually divided
into three categories commensalism, parasitism, and mutualism
commensalism is a relationship in which a species benefits from another but the
other one is not harmed or anything Parasitism is when one of the animals
benefits and the other one is harmed and mutualism is when both species
benefit. oh hi there. So topic 4.3 is about succession Ecological succession is when a new
species appears in a habitat which changes entirely other things Primary succession is when a new
species is introduced into a habitat this habitat is usually completely
uninhabited so there is no one living in there This first species to appear are called pioneer species
and secondary succession is when a species is introduced into a habitat
that already has species and other living beings inhabiting the area. So topic 4.4 is about biomes
which are a special set of ecosystems that share common characteristics some
of them include the tropical rainforests which have a thick layer of leaves which
is called a canopy and a bottom layer which usually has some vines called understory But there are also other places like the
tropical dry forest which usually sheds its leaves doing several seasons which
is why those plants are called deciduous there are also places called temperate
forest which are rich in coniferous trees. These forests are also reaching
humus which is a substance found in soil which is rich in organic matter. There
are other places such as the boreal forest which is also known as a taiga
which is a really cold kind of forest and finally there’s also the tundra
which is also known as the permafrost which is one of the coldest environments
we we can find on earth Finally we have topic 4.5 which is about
aquatic ecosystems these ecosystems can be divided into two zones the photic
zone and the aphotic zone. The photic zone is the zone of the sea where light still
reaches those regions and the aphotic song is the zone where light does not
reach so it’s a very dark place. Another thing are the benthos which are
organisms that live usually in the sediments or in the sea floor. These
organisms attach to the to the floor and get any remains of food that are usually thrown away by ocean currents there is also an organism called
plankton which is a general term for two species which is zooplankton which is an
animal and phytoplankton which is more like a plant. And finally we have two
zones which are wetlands and estuaries Wetlands are zones where land and water, they get together so usually water covers most of the surface of the
earth in that area or is usually present nearby. These zones are usually very
rich in nutrient. And estuaries are places where rivers and oceans meet, so these
zones are a mixture of freshwater and saltwater . Thank you guys for watching
this video I hope you liked and this is the first time I make this kind of video
so if you like please let me know I want to see your thoughts in the comments so
please subscribe if you haven’t and I see I’ll see you guys next time

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