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Teri M Ecology Intro

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Teri Mitton

on 3 April 2017

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Transcript of Teri M Ecology Intro

The study of interactions between
Organisms and the Environment
Distribution of Animals
can indicate variation of
Abiotic factors in the Environment
The Scale or Sub-Fields of Ecology
Organismal Ecology
Population Ecology
Ecosystem Ecology
Landscape Ecology
The Biosphere
Ecology VS Environmentalism
Aldo Leopold
Rachel Carson
"The 'Control of Nature' is a phrase conceived in arrogance born of the Neanderthal age of biology and philosophy, when it was supposed that nature exists for the convenience of man."
"A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community. It is wrong when it tends otherwise. "
Abiotic Factors
Biogeographic Realms
Global Climate
Zonation of Marine and Fresh Water habitats
Aquatic Biomes
Coral Reef
Tropical Forest
Land Biomes
Temperate Grassland
Coniferous Forest
Temperate Broadleaf Forest
"Conservation is a state of harmony between men and land."
Climate Change

Climate change is a long-term shift in the statistics
of the weather (including its averages). For example,
it could show up as a change in climate normals
(expected average values for temperature and
precipitation) for a given place and time of year,
from one decade to the next.
We know that the global climate is currently changing.
The last decade of the 20th Century and the
beginning of the 21st have been the warmest period
in the entire global instrumental temperature record,
starting in the mid-19th century. (NOAA.gov)
Natural variability
Climate change is a normal part of the Earth’s natural
variability, which is related to interactions among the
atmosphere, ocean, and land, as well as changes
in the amount of solar radiation reaching the earth.
The geologic record includes significant evidence
for large-scale climate changes in Earth’s past. An
example of this variability is shown in the plot below
of temperature data for the last 420,000 years,
derived from an Antarctic ice core.
Temperature changes in Antarctica determined from the deuterium
proxy measured in the Vostok ice core record. (Reference: Petit,
J.R., et al. 1999. Climate and atmospheric history of the past 420,000
years from the Vostok ice core, Antarctica. Nature 399: 429-436.)
Available at http://www.ncdc.noaa.gov/paleo/abrupt/story2.html
Human-induced change
Greenhouse Gases
Certain naturally occurring gases, such as carbon
dioxide (CO2) and water vapor (H2O), trap heat
in the atmosphere causing a greenhouse effect.
Burning of fossil fuels, like oil, coal, and natural gas
is adding CO2 to the atmosphere. The current level
is the highest in the past 650,000 years. The Fourth
Assessment Report of the Intergovernmental Panel
on Climate Change concludes, “that most
of the observed increase in the globally averaged
temperature since the mid-20th century is very likely
due to the observed increase in anthropogenic
greenhouse gas concentrations.”
Questions How do we measure something
complex like climate change?
Monitor Several Indicators
Albedo is the Earth's reflectivity
Do you think this could be an indicator?
What happens when you wear a
black shirt on hot sunny day?
Would the surface color of the Earth
effect global temperatures?
What do we have to lose?
Full transcript