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Transcript of ECOLOGY
1) competitive exclusion principle
What is ecology?
What does ecology have to do with me?
Methods of studying ecology
Whittaker's biome-type classification scheme
Biomes are large-scale ecological communities of both plants and animals, determined primarily by geography and climate.
Ecology is the study of the relationships of organisms to their environments.
By examining those relationships in natural ecosystems, ecologists can discover principles that help humankind understand its own role on the planet.
The ecosystem is the fundamental concept in ecology: consisting of the
complex of interacting organisms
inhabiting a region with all the
nonliving physical factors
that make up their environment.
Ecologists study structural and functional relationships of ecosystem components to be able to predict how the system will respond to natural change and human disturbance.
An ecological community is the
assemblage of species
found in a given time and place.
2) fundamental vs realized niche
3) resource partitioning
G. Evelyn Hutchinson
Ecologists studying all of them use similar
Field Work and Observations
Ecological studies have
3 key COMPONENTS
field data acquisition
Explore the seafloor
Ecologists need to collect samples of sea animals and seafloor sediments to study them. The data collected from these samples will help develop an understanding of the local marine environment.
What is a Desk Based Assessment (DBA)?
Ecologists examined information from a variety of sources to build their understanding
The Hamon Grab is a rectangular frame that supports a sample bucket. It is slowly lowered to the seafloor from the boat to collect sea animal and seafloor sediment samples.
The Beam Trawl collects larger and more mobile sea animals that live on or above the seafloor.
Seeing the seafloor and the communities of sea animals living on it is vital for the ecologists’ research.
Water Curtain Camera
In the lab
Back in the lab, the Hamon Grab samples and any remaining unidentified animals from the Beam Trawl samples are studied.
The marine environment is very complex so ecologists use the EUNIS classification system to describe it.
Using the EUNIS classification system, REC ecologists produced biotope maps.
Regional Environmental Characterisation
. A scientific research project to assess the physical (geology), biological (ecology) and archaeological environment of a particular study area.