Transcript Wildlife Conservation

Wildlife Conservation
Species
Warm-up
• Name popular species of wildlife
(5), why are they important?
Lesson Essential Question
• How was/is your species
significant?
Wildlife Species
• Research
Overpopulation
• Overpopulation of a specieswhen a population exceeds it’s
carrying capacity of the area
• Problems like: Starvation, thirst,
competition and death occur
Overpopulation
• Effect on other species
• If a predator- may cause
extinction of prey species
• If a prey- may cause increase in
predator population
Wildlife Conservation
Wildlife Harvest Techniques
Warm-up
• Why does overpopulation
matter?
Lesson Essential Question
• How is wildlife harvested for our
benefit?
Microscopic Marine Animals
• Plankton-zooplankton- staple
food for species from tiny fish to
whales
• Waters vary in concentration
Microscopic Marine Animals
• Possibility of harvesting for
human consumption
• Contain nutrients and amino
acids in human food
• Would require lots of filtering
• NOT WORTH IT
Salmon
• Begin life in freshwater but
migrate to ocean to live and grow
• Caught in nets and sold fresh,
frozen, smoked and canned
Tuna
• Leading game fish in US
• 3 methods of catching
• Bait-fishing- using live bait to
attract tuna then catching them
with a hook and line
Tuna
• Long-lining- fishers reel out a line
up to 75 miles with as many as
2000 hooks
• Purse seining- using nets to catch
fish. Fisherman surround a school
of tuna with net, close bottom
and haul fish close to boat
Tuna
• Purse seining- haul fish aboard
using porpoises (travel above
schools of tuna)
• Pilots alert fishing boats
• Problem- netting of porpoises
Shrimp
• Trawls- nets dragged on ocean
floor
• Sold frozen or canned
Lobster
• Pots- traps
• Allow lobster to enter, vertical
wooden bars confuse and
prevent lobster from getting out
• Traps checked daily (fighting)
• Claws immobilized or rubber
banded
Whales
• Factory ship & fleet of high-speed
diesel-powered catcher boats
• Airplanes, helicopters, & sonar
devices to locate whale schools
• Once boats make kill, dead
whales filled with air to keep
afloat
Whales
• Radar & flags placed on whales
• Buoy boats tow to factory ship
• On board- blubber removed &
cooked to remove oil, meat cut,
frozen & ready for market, bones
and scrap prepared for cattle feed
• NO MORE Whale Products
Video
• Dirty Jobs
• Answer Questions
Wildlife Conservation
Estuary
Warm-up
• Do you feel that whaling is
wrong? Why or why not?
Lesson Essential Question
• What is an estuary and why is it
important?
Estuary
• Area where a freshwater source
opens into the ocean
• Supports a variety of life, found
nowhere else
• Life can withstand rapid changes
in salinity, temperature and
density
Estuary Characteristics
• Shallow & turbulent- Results in
high amount of dissolved oxygen
• Tides cause area to be nutrient
rich- rivers bring nutrients from
above & tides bring nutrients
from ocean
• Nutrient trap
Estuary Characteristics
• Bacteria count high- high level of
dissolved oxygen, causes rapid
decomposition of organic wastes
• Plant life prospers, plant life
attracts plant-eating fish
Life in Estuary
• 3 areas
–1. species that travel limited
distance into the estuary
–2. species found in estuary &
other parts of ocean
–3. species whose entire life
cycle in estuary
Life in Estuary
• 90% of marine fish harvested by
American fishers comes from or
passes through an estuary.
• Best-known life- oysters, clams,
lobsters, crabs & shrimp
Life in Estuary
• Problems?
• Sought after real estate
• Dumping grounds
• Destroy natural habitat
Estuary
• Lab
Wildlife Conservation
Artificially cultivating
Warm-up
• Estuary word splash
Lesson Essential Question
• What does it mean to artificially
cultivate the ocean?
Artificially Cultivating Ocean
• Aquaculture- artificially
propagate marine animals
• Success with oyster, rafts
provided to attract oyster larvae
with clam shells
Artificially Cultivating Ocean
• Mariculture- aquaculture
practiced in the ocean
• Ex: Prawns, plants & plant
products, lobsters, shrimp, etc
• Fish farms- salmon
Artificially Cultivating Ocean
• Common Freshwater Game Fish:
• Largemouth & smallmouth bass
• Northern pike
• Crappie
• Bluegill
• Channel catfish
Artificially Cultivating Ocean
• Largemouth Bass- commonly
stocked in farm ponds
• Well adapted and spawn in
shallow water
• Takes 3 years to become good
size
• Prosper with good food supply
Artificially Cultivating Ocean
• Bluegill- used in combo with
largemouth bass
• Food source for bass
• Other names: perch, bream, brim
• Growth dependent on food
• Spawn May-August
Artificially Cultivating Ocean
• Channel Catfish- stocked with
bass and bluegill
• Feed on plant life then bluegill
when older
• Eggs and young eaten by bass
and bluegill
• Need place for spawning
Fishing Regulations
• States enact regulations
controlling the fish taken from
public waters
• Most by size, some by # taken
Fishing Regulations
• Read the fishing guide for
Delaware and answer the
questions provided
Wildlife Conservation
Wildlife Enhancement Techniques
Warm-up
• What do wildlife need to
prosper?
Lesson Essential Question
• How can we provide habitat for
wildlife?
Requirements
• Food
• Cover
• Water
• Home range and territory
Animal Habitat
• Look up animal information,
create a plan to enhance their life
in a specified area. Include a
drawing and 5 things you would
include.
Wildlife Conservation
North American Wildlife
Conservation Model
Warm-up
• What things should be included
in all landscapes? Why?
Lesson Essential Question
• How is our wildlife protected?
North American Wildlife
Conservation Model
• Read the article, answer
questions, discussion
CREP
• Conservation Reserve Enhancement
Program
• “Land retirement program that helps
agricultural producers protect
environmentally sensitive land,
decrease erosion, restore wildlife
habitat and safeguard ground and
surface water”
CREP
• Partnership between state, tribal, and
federal government
• Helps landowners develop & restore
wetlands
• Supplement to farm income
Aglands Preservation
• Preserves farms
• Historic structures, wildlife habitats,
environmental features, wetlands,
forests, & sets aside land for future
farms
• voluntary
Aglands Preservation
• Land Evaluation and Site Assessment
• System to numerically rate land
parcels
• Land evaluation:
–Soils rates & grouped, values
assigned
Aglands Preservation
• Land Evaluation and Site Assessment
• Site Assessment:
–Non-soil factors related to ag use of
site
–Factors related to development
pressure
–Public values of site
Habitat Management Model
• Students create 10 things for the
school to add/delete/modify to
promote wildlife preservation
• Explain what each would promote
and why it would work
Wildlife Conservation
Issues of Human Responsibility &
ethics
Warm-up
• Do you believe in wildlife
management? Why or why not?
Lesson Essential Question
• How does the public view wildlife
management? Is this correct?
Management by and for whom?
(pg. 469)
• “Our society believes (& our laws
establish) that many of our natural
resources (wildlife, national parks,
preserves, etc) are “held in trust” by
the government for the benefit of the
people…..”
Conservation Philosophy Continuum
• Continuum with words preservation
at one end, exploitation at the other
• Preservation- believes people have
no right to disturb nature
• Exploitation- everything is ours, does
not matter what or who it affects
Conservation Philosophy Continuum
• Pg 470
• Second paragraph under heading
• Draw your own continuum and place
yourself
• Explain why you place yourself where
you did, write at least 5 sentences
Basis for Natural Resources
Management
• People have unlimited needs and
wants
• Natural resources are limited so
therefore we must manage them to
provide for the present and future
needs and wants of our people
Basis for Natural Resources
Management
• May have to give up certain things
• EX: oil to places, may result in oil spill
• Building a park- cost money
• Opportunity Cost- the value, either
monetary or nonmonetary, of what
we give up when we choose one
alternative over another.
What do you think?
• Is managing our natural resources
worth the opportunity cost? Why?
Review
• Review for test