Compensation Approach
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paying people for the damage cause by wildlife, makes people less likely
to harm them
Ket Concepts of Meta-popuations:
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, -habitat occurs in patches, between patches is the matrix
-each patch has a local population ("deme")
-demes are connected by migration (dispersal)
-if a deme is extirpated, the patch can be recolonized by immigrants from
another patch: "Rescue Effect"
Invasive
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an established species (or one likely to invade) that causes significant
ecological, economic, or human health problems
By Accident (How do exotic species get introduced?)
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-boats (hulls, ballast)
-planes
-shoes
-soil
-horses
-packaging
Case Study: Purple Loosestrife
-native to Europe, Asia, northwest Africa, and southern Australia
-introduced to US through ballast and ornamental cultivar
-a single plant many produce up to 2.7 million tiny seeds annually
-make the soil extremely salty, so no other plants can grow there
Case Study: Zebra Mussels
-native to southern Russia
-introduced through ballast water in Great Lakes
-reduce plankton load, therefore affecting the entire food chain
-settle (encrust) on mussels and water intake pipes
Accidental Introduction: Brown Tree Snake
, -accidentally introduced to Guam by US military around 1950
-native to Australia, Papua New Guinea, and Solomon Islands
-before this only 1 was found in Guam
-has wiped out most native bird species in Guam
-snake bites to children in their sleep
-get into electrical wires and cause power outages
-affect tourism and poultry industries
How can scientists predict species' ranges?
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-"Climate Envelope"
-"Bioclimatic Niche" modeling
-Joshua Tree population will decrease by a third in the next 60 years
Lago Guri Dam Venezuela
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initially these new islands temporarily have more species than they can
support, the difference (current amount-equilibrium amount) = extinction
debt
Weather
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, short-term conditions at localized sites
Radio and satellite telemetry provide information about animal movements and
habitat use
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-radio telemetry: need to be in close range, composed of transmitter and
receiving antennas, good for fine, scale movements, finding burrows,
dens, and nest trees
-satellite telemetry: allows for following animal movements/migrations
over long-distance, can get information without recapturing animal or
being in close proximity, does not provide detailed fine scale
movements or habitat use
--Bar Tailed Godwit migration tracked via satellite
Extripated
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locally extinct
Factors that make some countries grow faster than others:
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paying people for the damage cause by wildlife, makes people less likely
to harm them
Ket Concepts of Meta-popuations:
Give this one a try later!
, -habitat occurs in patches, between patches is the matrix
-each patch has a local population ("deme")
-demes are connected by migration (dispersal)
-if a deme is extirpated, the patch can be recolonized by immigrants from
another patch: "Rescue Effect"
Invasive
Give this one a try later!
an established species (or one likely to invade) that causes significant
ecological, economic, or human health problems
By Accident (How do exotic species get introduced?)
Give this one a try later!
-boats (hulls, ballast)
-planes
-shoes
-soil
-horses
-packaging
Case Study: Purple Loosestrife
-native to Europe, Asia, northwest Africa, and southern Australia
-introduced to US through ballast and ornamental cultivar
-a single plant many produce up to 2.7 million tiny seeds annually
-make the soil extremely salty, so no other plants can grow there
Case Study: Zebra Mussels
-native to southern Russia
-introduced through ballast water in Great Lakes
-reduce plankton load, therefore affecting the entire food chain
-settle (encrust) on mussels and water intake pipes
Accidental Introduction: Brown Tree Snake
, -accidentally introduced to Guam by US military around 1950
-native to Australia, Papua New Guinea, and Solomon Islands
-before this only 1 was found in Guam
-has wiped out most native bird species in Guam
-snake bites to children in their sleep
-get into electrical wires and cause power outages
-affect tourism and poultry industries
How can scientists predict species' ranges?
Give this one a try later!
-"Climate Envelope"
-"Bioclimatic Niche" modeling
-Joshua Tree population will decrease by a third in the next 60 years
Lago Guri Dam Venezuela
Give this one a try later!
initially these new islands temporarily have more species than they can
support, the difference (current amount-equilibrium amount) = extinction
debt
Weather
Give this one a try later!
, short-term conditions at localized sites
Radio and satellite telemetry provide information about animal movements and
habitat use
Give this one a try later!
-radio telemetry: need to be in close range, composed of transmitter and
receiving antennas, good for fine, scale movements, finding burrows,
dens, and nest trees
-satellite telemetry: allows for following animal movements/migrations
over long-distance, can get information without recapturing animal or
being in close proximity, does not provide detailed fine scale
movements or habitat use
--Bar Tailed Godwit migration tracked via satellite
Extripated
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locally extinct
Factors that make some countries grow faster than others:
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