Hand in W.S. 16.2 (Making a Food Web) before the bell rings

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Class Topics
Title Biology 5/1/07
Objectives

• To learn about ecology.

• Hand in W.S. 16.2 (Making a Food Web) before the
  bell rings
• Review Essay/Quiz
• Notes - Ecology - Chapter 16
• Video Ecology of the Human
• "The only limits to our realization of tomorrow
  will be our doubts of today."
• Franklin D. Roosevelt

Friday, August 14, 2015 827 PM
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Class Assignments
By When
What

• W.S. 16.2 (Making a Food Web) 5/1/07
• Read 345-354 5/1/07
• W.S. 16.2 (Quiz ½ of DR) 5/3/07
• Video W.S. Ecology of the Human 5/3/07
• Due this class period
• Due next class period
• Due in the future

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Grade Sheet
2A p. 157 (5 pts.)
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(No Transcript)
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Ecology

• The study of the interactions between organisms
  (with one another) and their physical environment
• Habitat
• Where a particular population of organisms live
• Community
• The many interacting species in a habitat
• Ecosystem
• The community and its environment
• Biodiversity
• Number of organisms living in an ecosystem

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Energy flow in Ecosystems

• Producers
• Photosynthesis
• Consumers
• All others
• Trophic levels
• Assigning organisms levels
• Fig. 6 p.345

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Trophic levels

• 1st
• Producers
• 2nd
• herbivores
• 3rd
• Omnivores, carnivores
• Rarely there are 4
• trophic levels (carnivores
• that eat other carnivores)
• Detrivores (decomposers)

From http//www.kesgrave.suffolk.sch.uk/ learning
zone/subjects/geography/trophic.html
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Energy Loss

• Adding trophic levels adds to energy demands
• Decrease of factor of 10 with additional trophic
  level
• Each trophic level has 90 less energy than the
  one below it
• Three hundred trout are needed to support one man
  for a year. The trout, in turn, must consume
  90,000 frogs, that must consume 27
  million grasshoppers that live off of 1,000 tons
  of grass.  -- G. Tyler Miller, Jr., American
  Chemist (1971)

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From http//www.globalchange.umich.edu/globalchan
ge1/current/lectures/kling/highertrophic/trophic2.
html
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From http//ridge.icu.ac.jp/gen-ed/ecosystem-jpgs
/troph-lev-energy.jpg
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Food Chains and Webs

• Food Chain
• Algae, krill, cod, leopard seal, orca
• Make your own ending with humans
• Food web
• More complicated
• Varied food sources

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From http//www.marietta.edu/biol/102/ecosystem.
htmlFoodChainsandWebs4
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Video Human Life

• Butterfly
• Vampire bat
• Bed bug
• Tampan tick
• Flea larva
• Lice (3 types)
• Bacteria (skin)
• Fungi

• Amoeba
• Ciliates
• Tapeworm
• Blood fluke
• Tse tse fly mosquito
• Mite (facial)
• Mite (scabies)

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Cycles

• Water
• Carbon
• Phosphorus/Nitrogen

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From http//www.ncar.ucar.edu/eo/basics/images/us
gs_water_cycle.jpg
from http//www.marietta.edu/biol/102/ ecosystem
.htmlFoodChainsandWebs4
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Water cycle

• Transpiration
• Condensation
• Run off
• Respiration
• Evaporation
• Precipitation
• Water vapor
• Percolation
• Water storage
• Ground water

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From http//oceanography.geol.ucsb.edu/gs4/s2004
/Lectures/Ocean20Life/A3-Nutrient20Cycling/Carbo
n20Cycle.Ross-P164.jpg
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Carbon cycle

• Photosynthesis
• Death and decomposition
• Combustion
• Atmospheric CO2
• Cellular respiration
• CO2 dissolved in water
• Fossil Fuels
• Sediments
• Limestone

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From http//www.marietta.edu/biol/102/ecosystem.
htmlFoodChainsandWebs4
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(No Transcript)
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From http//www.marietta.edu/biol/102/ecosystem.
htmlFoodChainsandWebs4
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Classification Activity

• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• species