Midterm #1 Flashcards
NAMES AND PLACE:
Utilitarian conservation
○ Resources used to max yield to benefit people
preservation
○ Protecting/preserving valley
○ Didn’t want dam
- Pinchot = utilitarian
- Muir = preservation
Hetch Hetchy Valley
Sand County Almanac 1949
- Opened first wilderness area for a preserved park
- Founder of modern conservation
- Creator of “Land Ethic”
Leopold
Carson
Silent Spring 1962
- Helped ban DDT
Experimental Lakes in NW Ontario testing fertilizer impacts
- Phosphorus proven impactful in aquatic environments
schindler
Tragedy of the Commons 1833
- solutions: regulation and privatization
- Created by Lloyd showing overgrazing of livestock on a shared pasture.
- Hardin rediscovered concept
- Short term vs. Common goods
Lloyd-Harden
- The Population Bomb 1968
- Predicted overpopulation and worldwide famine/war by 1980
Enrich
Simon-Enrich Wager
- 1980-90
- Simon argued that humans are innovative and are the best limiting resources
- Bet on prices of resources for 10 years. Simon won by saying they would lower.
Malthus
- Malthusian Trap
○ Population growth is potentially exponential while resource supply growth is linear
Father of the Green Revolution:
- Crops to increase yield
- Nobel 1970
Borlaug
- NH3 fertilizers expanded agricultural yield
- Nobel 1918
Haber
Nelson
Introduced Earth Day 1970
Start of conservation bio 1980s
- Developed concepts about threats to biodiversity loss
- Evil Quartet/Horsemen of Eco. Collapse
○ Overexploitation
○ Introduced/non-native species
○ Habitat loss
○ Trophies Cascades
Diamond
CFC’s and Ozone
- CFC’s led to destruction of ozone layer in 1980s
- 1987 ban on CFC’s
- Polar areas more sensitive
- Lovelock important for research
Made climate change recognized by compiling meteorological data for global temperature database to track trends
- Late 1980s
Hensen
Reduction
- Said biology can be explained by chemistry and physics. Smaller parts can explain bigger parts
Crick
Reduction
- Said biology can be explained by chemistry and physics. Smaller parts can explain bigger parts
- Wilson
Normative Science Definition and Examples
- Interprets info with preference for a specific policy
- Inherently biased
- “Advocacy science”
- Examples:
○ Pristine ecosystem preferred to human altered ones
○ Native species are better
○ Higher biodiversity is preferable to lower
Descriptive Science
Purely facts and measurements
Deductive Reasoning
- Theory first then experimentation
- Basic sciences (chemistry, physics)
Inductive Reasoning
- Experiments before theory/hypothesis
- Applied sciences (con bio)
- Observation causes ideas
Multiple Working Hypothesis
- Chamberlain 1890
- Distributes effort and reduces ownership of ideas to objectively evaluate hypothesis
Define Axioms
what we know to be true from earlier research
Define Postulate
asserts relationships between set concepts
Define Data Statement
strategy to link question and data
Manipulative Experiment
- Manipulating some factors and having a controlled/unchanged constant
Natural Experiment and Examples
- Observing results of large-scale phenomena
- Example: Studying volcano, using islands to study fragmentation
Observation Study
- Can only study listed facts
- Example: what a Dino eats
Oldest Ecological Experiment
- Manipulative experiment
- Understanding agriculture production of hay by adding fertilizer to some and not to others in the UK
SLOSS Argument
- “single large or single small”
Argument about whether fragmentation should cause species number growth or if many fragments should equal one area with the same amount of species
Meta Analysis
- After-analysis to synthesize multiple research studies based on the combination of several studies
- Understand pattern to find knowledge
- Belief that’s truth should come from a combination of many studies
Theory that Published articles, especially on competitive journals, can have exaggerated results
Winner’s curse
As hypothesis are proposed, it is impossible to predict if it will be revolutionary or ridiculous
Horrobin’s Hypothesis
As hypothesis are proposed, it is impossible to predict if it will be revolutionary or ridiculous
Desk Rejections
Publication Bias
Papers with statistically significant are 3x more likely to be published than null results.
Lithosphere
Solid outer part of Earth including the crust and upper mantle
Igneous Rock
Canadian Shield
- Formed from volcanic rocks or plutonic rocks (magma under the surface)
Sedimentary Rock
- Recrystallizing minerals and rocks “glued” together by organics
Cratons
- First lithosphere/continents
- Old floating pieces of lithosphere that stoped growing about 2 Ga as Earth cooled
- Expanded into plate tectonics
Mesozoic Era
- 252-66 Ma
- “Middle life”
- Triassic, Jurassic, and Cretaceous
Triassic
- 201-252 Ma
- Breakup of Pangea
- Time of Dino’s and gymnosperms
Jurassic
- 145-201 Ma
- Tropical/humid, seas, Dino dominate, true mammals form
Cretaceous
- 66-145 Ma
- Seasonality, birds, mammals
Quaternary Period
- Pleistocene Epoch
- 2.58 Ma to 11.7 Ka
- Present
first calculation of Earth orbit around the sun and studied Earth’s long term calculation of climate change and Earth temperature
- Milankovitch Cycles
Suficial Geology land forms
- Landforms associated with contention glaciers
Eskers
Glacial stream land forms on top, with, or below streams. Mounds to represent where glaciers once were. Important for wildlife.
Drumlins
Hilly mound that is long and originated under the glacier. Left behind by scouring glacier
Suficial Deposits
Deposits of rock/material glacially moved onto bedrock
Glacial lake
Deposits
Glaciolacustrine
Glacial river deposits
Glaciofluvial
What drives the water cycle?
Driven by solar and gravity
Ocean Layers
- Epipelagic: surface level where light penetrates up at 200m
- Mesopelagic: middle 10 degrees C
- Bathypelagic: 40-10 degrees C
- Apyssalpelagic: 6000m depth
Oligotrophic Lakes and Example
- Low nutrients
- Deeper/cleaer
- High levels O2
- Green algae
Ex) Lake Superior
Eutrophic Lakes and Example
- High nutrient
- Shallow/darker
- Low levels O2
- Blue green algae
- Ex) Lake Erie
Anthropogenic eutrophication
Excess nutrients in lentic systems from human activity
Long jet stream waves from geography
Rosby Waves
Air mass moves from low to high elevation
Orographic effect
Expansion/compression of air from elevation change over mountsins
Adiabatic Effect
Dry, warm downslope winds in mtn downside
Föhn Winds