Water hyacinths and nutria are not the only exotics that are creating problems in our wetlands. Hydrilla, another aquatic plant, is the second biggest problem in our coastal waterways. It also clogs waterways and pushes native plants out of the habitat. Additionally, natural coastal habitats are becoming infested with stands of Chinese tallow trees. These trees do more than just invade these natural habitats; they also release toxins from their leaves that change the chemistry of the soil, preventing native plants from growing. Another exotic pest is the zebra mussel, which attaches to native mussels in large numbers and suffocate or starve them. It is because of human activities that exotics are here, and it will be up to us to solve the problem.
ASYM_BeenHere
exotic_four
YM_BeenHere
Water hyacinths and nutria are not the only exotics that are creating problems in our wetlands. Hydrilla, another aquatic plant, is the second biggest problem in our coastal waterways. It also clogs waterways and pushes native plants out of the habitat. Additionally, natural coastal habitats are becoming infested with stands of Chinese tallow trees. These trees do more than just invade these natural habitats; they also release toxins from their leaves that change the chemistry of the soil, preventing native plants from growing. Another exotic pest is the zebra mussel, which attaches to native mussels in large numbers and suffocate or starve them. It is because of human activities that exotics are here, and it will be up to us to solve the problem.
background
971201163715884325880208179505
ASYM_TpID
eagle
deadduck
blackbear
gator
brownpelican
bald eagles
hyacinth
hyacinth with flower
nutria
gator
blackbird
slate
greenSlate
dark green slate
test button
nutria
gator
Blue slate
earth
coast
pelican
pelican crop
gator
pelican
boots1
bear1
pelican1
EndSpec
ExoticSp
EndangSp
gator2
turtle2
nutria1
pelican.avi
bear.avi
cajunm~1\endspec.wav
cajunm~1\exoticsp.wav
cajunm~1\endspecl.wav
project5.avi
gator3.avi
boots1.avi
nutria1.avi
eos\nutria1.avi
n:\kathy\videos\virbear.avi
ator2.avi
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danger7
The bald eagle is our national symbol, so
when it became threatened with extinction
in the 1960's due to DDT use, habitat loss,
and other problems created by humans,
people took notice. In the winter these
northern birds migrate south near open
water areas like coastal Louisiana where
fish or other prey are plentiful. Many of
them nest in these coastal areas. Louisiana
has the most eagles in the southeastern
United States, outside of Florida. Bald
eagles migrate into the area in September
and nest in the winter months. They build
their nests in large cypress or oak trees located on natural levee ridges. Eagles are another success story because recently they have been downlisted from endangered to threatened. The Fish and Wildlife Service has also proposed that bald eagles be removed from the list of threatened and endanered species.
eagle
pelican
ASYM_BeenHere
pelican.avi
gator.avi
turtle.avi
tle.avi
cajunm~1\endspec.wav
bear.avi
boots.avi
nutria.avi
ria.avi
cajunm~1\exoticsp.wav
pelican
pelican crop
exotic start
GatorPage
danger1
EndangSp
novoice
enterPage
EndangSp
novoice
leavePage
4novoice
mmopen clip "EndangSp"
mmplay
mmclose
X = 1
Here today, gone tomorrow. No, it may not happen that fast, but nevertheless there are many species of plants and animals that are no longer on Earth. Why? Well, it usually has something to do with us humans, even though some disappear because of natural events. In our quest to civilize the planet we have drained wetlands, cut down forests, cultivated the prairies, and polluted the water, air, and soil. In the process we have destroyed or altered the habitat of many living things, resulting in extinct, endangered, and threatened plants and animals. Healthy ecosystems are the key to survival for all living things and our economic health.l.c survival.
EThreatened andndangered Species3
pelican
EndangSp
buttonclick
buttonclick
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Threatened and Endangered Speciess
ASYM_BeenHere
exotic_three
buttonclick
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danger2
Why the big ruckus over a few plants and animals? First of all let's look at numbers. Take dinosaurs for instance. We are talking about thousands of species, and that's not counting all the plants that were around at the time. Of course, they all disappeared because of a natural event; humans weren't around then so they didn't present a problem. Let's get a little more specific. Scientists estimate that 500 or more species of plants and animals have become extinct in the United States alone. We may never know the true numbers because some living things are wiped out before humans even discovered them. And so what? Well, many plants and animals have chemical secrets that lead to cures for diseases, ways to protect crops naturally, or even ways to help other species become better food sources. Many living things can tell us about the health of our environment by telling us of the presence of toxins or pollutants in the water, air, and soil. They also add to the unique beauty and wonder of our world. All things on this earth are connected in some way, and when something happens to one, it somehow affects all.w affects all.
earth
ASYM_BeenHere
f the states first success stories. Use to be everyone wanted alligator shoes, belts, purses, and luggage, so alligators were hunted year round until they were almost all gone. In 1966 alligators were placed on the endangered list. Because of conservation efforts the trend toward extinction has been reversed, and alligator numbers continue to increase. The large number of alligators in the freshwater swamps and marshes of coastal Louisiana is unique because there is nowhere else in the United States that could support such a large population of alligators.
boots
buttonclick
buttonclick
mmclose
mmplay clip boots
stage 2
ASYM_BeenHere
exotic_one
c:\temp\nutria.avi
aeenHere
danger1
danger3
_TpID
slate
danger3
ASYM_BeenHere
The story is no different in the coastal wetlands
of Louisiana. Humans are the key to the
disappearance of many animals either because of
unmanaged hunting or loss of habitat.
Coastal Louisiana is disappearing at the rate of
35 square miles per year. As the swamps and
marshes disappear, we lose the plants and animals
that depend on these habitats. Not many
Louisianians know that bison, panthers, and wolves
once roamed our coastal areas. Carolina parakeets
and passenger pigeons once filled the cypress swamps with sound. Both are now extinct because humans hunted them out of existence. Louisiana's coastal wetlands and adjacent bays and bayous are home to many species of plants and animals, of which at least three are endangered and three threatened. Time and concerned effort will hopefully save the plants, animals, and our coastal wetlands.
coast
background
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WaveAudio
displayBitsPerPixel
tb50r.sbk
TB50WIN.DLL
video
rpdisplayBitsPerPixel
seconds
images
audio
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tbwin.DLL
displayBitsPerPixel
video
rpdisplayBitsPerPixel
seconds
images
novoice
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"Exotic species" sounds like an island adventure, but actually it is a problem that needs solving. Part of the success of a wetland depends on each plant and animal having a niche, its own living space, that does not interfere with another's space. Exotic or non-native plants and animals, such as water hyacinths and nutria, are a big problem for wetlands. They become pests, displacing native species by taking over their habitat, food sources, and nesting areas. Some exotics are brought in deliberately, while others enter accidentally. Most die because they are unable to survive in the new environments. A small percentage become very successful, however, and spread quickly, uncontrolled by the predators, parasites, or competitors that kept them in check in their native country.
The nutria is legendary in Louisiana. According to some sources, nutria were first brought into Louisiana from South America in the 1930's to create a fur-farming industry. Although they were kept in cages on the farms, they eventually escaped into the wild in many ways. Some got loose during a hurricane, while others were deliberately set free, either by the fur farmers who were not successful, or by individuals who thought the nutria would help control the water hyacinth problem by grazing on the plants.
Coastal Louisiana is very much like the native South American habitat of nutria. Thus, they multiplied
in the wild, competing with the resident muskrats for food and shelter. Muskrat numbers soon began to dwindle as a result.
Trappers found nutria profitable until the 1980's,
ons exploded, and they soon became a problem for the marshes because of their foraging habits. Nutria strip marshes of vegetation and uproot and eat cypress seedlings in swamps. They also destroy rice field irrigation dikes and uproot sugarcane fields.
Nutria are not just a problem in the Louisiana marshes; they are also problems in other states, such as Maryland and Oregon, where they were also introduced for fur farming and where their populations have also increased tremendously in recent years, endangering the vegetation in those wetlands as well.
nutria
library
main.tbk
zoom in fast
lft_hand
left_library
buttonclick
buttonclick
4path
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buttonclick
exotic_one
myname
enterPage
buttonclick
--notifyBefore Enterpage
= "exotic_one"
oenabled =
myname=
Previous
buttonclick
myname
exotic_four
enterPage
buttonclick
notifyBefore
= "exotic_four"
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dropped and trapping began to decline. Nutria populations exploded, and the animals soon became a problem for the marshes because of their foraging habits. Nutria strip marshes of vegetation and uproot and eat cypress seedlings in swamps. They also destroy rice field irrigation dikes and uproot sugarcane fields.
Nutria are not just a problem in the Louisiana marshes; they are also problems in other states, such as Maryland and Oregon, where they were also introduced for fur farming and where their populations have also increased tremendously in recent years, endangering the vegetation in those wetlands as well.
the vegetation in those wetlands as well.
Trappers found nutria profitable until the 1980's, when fur prices dropped and trapping began to decline. Nutria populations exploded, and they soon became a problem for the marshes because of their foraging habits. Nutria strip marshes of vegetation and uproot and eat cypress seedlings in swamps. They also destroy rice field irrigation dikes and uproot sugarcane fields.
Nutria are not just a problem in the Louisiana marshes; they are also problems in other states, such as Maryland and Oregon, where they were also introduced for fur farming and where their populations have also increased tremendously in recent years, endangering the vegetation in those wetlands as well.
enterPage
nutria1
buttonclick
buttonclick
mmclose
mmplay clip nutria1
stage 2
quickly in the wild, competing with the resident muskrats for food and shelter. Muskrat numbers soon began to dwindle as a result.
Trappers found nutria profitable until the 1980's, when fur prices
on the farms, they eventually escaped into the wild in many ways. Some got loose during a hurricane, while others were deliberately set free, either by the fur farmers who were not successful, or by individuals who thought the nutria would help control the water hyacinth problem by grazing on the plants.
Coastal Louisiana is very much like the native South American habitat of nutria. Thus, they multiplied quickly in the wild, competing with the resident muskrats for food and shelter. Muskrat numbers soon began to dwindle as a result.
Trappers found nutria profitable until the 1980's,
ons exploded, and they soon became a problem for the marshes because of their foraging habits. Nutria strip marshes of vegetation and uproot and eat cypress seedlings in swamps. They also destroy rice field irrigation dikes and uproot sugarcane fields.
Nutria are not just a problem in the Louisiana marshes; they are also problems in other states, such as Maryland and Oregon, where they were also introduced for fur farming and where their populations have also increased tremendously in recent years, endangering the vegetation in those wetlands as well.
audio\endspec.wav
audio\exoticsp.wav
video\project5.avi
audio\endspec.wav
video\gator3.avi
<Execute/Evaluate bo
video\boots1.avi
bootc
video\nutria1.avi
video\virbear.avi
video\pelican1.avi
audio\endspec.wav
I:\Coastal\video\pelican1.AVI
m:\coastal\video\virbear.avi
m:\coastal\video\boots1.avi
m:\coastal\video\project5.avi
m:\coastal\audio\endspec.wav
m:\coastal\audio\exoticsp.wav
<Execute/Evaluate bo
m:\coastal\audio\endspec.wav
<Execute/Evaluate bo
This program requires a sound card. Check sound card drivers or use a machine that has a sound card.
WaveAudio
displayBitsPerPixel
tb50r.sbk
TB50WIN.DLL
video
rpdisplayBitsPerPixel
seconds
images
audio
novoice
This programs requires that your video card be set to more 256 colors to display properly. Please check your video card settings and run the program again.
enterApplication
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danger4
danger4
ASYM_BeenHere
The Louisiana Black Bear is a threatened species today because of the loss of habitat. The few native black bears that still live in Louisiana today are found in the heavily wooded bottomland hardwood forests of the Lower Mississippi Valley. Probably the largest number of bears in the coastal zone, (which still would not be very many,) would be found in the lower Atchafalaya Basin. However, it is not all doom and gloom. There are some success stories.are some success stories....
bear1
buttonclick
buttonclick
mmclose
mmplay clip bear1
stage 2
danger7
The bald eagle is our national symbol, so
when it became threatened with extinction
in the 1960's due to DDT use, habitat loss,
and other problems created by humans,
people took notice. In the winter these
northern birds migrate south near open
water areas like coastal Louisiana where
fish or other prey are plentiful. Many of
them nest in these coastal areas. Louisiana
has the most eagles in the southeastern
United States, outside of Florida. Bald
eagles migrate into the area in September
and nest in the winter months. They build
their nests in large cypress or oak trees located on natural levee ridges. Eagles are another success story because recently they have been downlisted from endangered to threatened. The Fish and Wildlife Service has also proposed t
eagle
pelican
ASYM_BeenHere
The bald eagle is our national symbol, so
when it became threatened with extinction
in the 1960's due to DDT use, habitat loss,
and other problems created by humans,
people took notice. In the winter these
northern birds migrate south near open
water areas like coastal Louisiana where
fish or other prey are plentiful. Many of
them nest in these coastal areas. Louisiana
has the most eagles in the southeastern
United States, outside of Florida. Bald
eagles migrate into the area in September
and nest in the winter months. They build
their nests in large cypress or oak trees located on natural levee ridges. Eagles are another success story because recently they have been downlisted from endangered to threatened. The Fish and Wildlife Service has also proposed that bald eagles be removed from the list of threatened and endanered species.
danger3
coast
utton
The story is no different in the coastal wetlands
of Louisiana. Humans are the key to the
disappearance of many animals either because of
unmanaged hunting or loss of habitat.
Coastal Louisiana is disappearing at the rate of
35 square miles per year. As the swamps and
marshes disappear, we lose the plants and animals
that depend on these habitats. Not many
Louisianians know that bison, panthers, and wolves
once roamed our coastal areas. Carolina parakeets
and passenger pigeons once filled the cypress swamps with sound. Both are now extinct because humans hunted them out of existence. Louisiana's coastal wetlands and adjacent bays are home to many species of plants and animals, of which at least three are endangered and three threatened. Time and concerned effort will hopefully save the plants, animals, and our coastal wetlands.
ASYM_BeenHere
The story is no different in the coastal wetlands
of Louisiana. Humans are the key to the
disappearance of many animals either because of
unmanaged hunting or loss of habitat.
Coastal Louisiana is disappearing at the rate of
35 square miles per year. As the swamps and
marshes disappear, we lose the plants and animals
that depend on these habitats. Not many
Louisianians know that bison, panthers, and wolves
once roamed our coastal areas. Carolina parakeets
and passenger pigeons once filled the cypress swamps with sound. Both are now extinct because humans hunted them out of existence. Louisiana's coastal wetlands and adjacent bays and bayous are home to many species of plants and animals, of which at least three are endangered and three threatened. Time and concerned effort will hopefully save the plants, animals, and our coastal wetlands.
What is usually the first thing visitors to south Louisiana ask to see? Alligators. It wasn't too long ago that that would have been almost impossible to do. The alligator was one of the state's first success stories. At one time everyone wanted alligator shoes, belts, purses, and luggage, so alligators were hunted year round until they were almost all gone. In 1966 alligators were placed on the Federal endangered list. Because of conservation efforts the trend toward extinction has been reversed, and alligator numbers continue to increase and are no longer considered threatened. The high number of alligators in the freshwater swamps and marshes of coastal Louisiana is unique because there is nowhere else in the United States that could support such a large population of alligators.
boots1
buttonclick
buttonclick
mmclose
mmplay clip boots1
stage 2
gator
What is usually the first thing visitors to south Louisiana ask to see? Alligators. It wasn't too long ago that that would have been almost impossible to do. The alligator was one of the state's first success stories. At one time everyone wanted alligator shoes, belts, purses, and luggage, so alligators were hunted year round until they were almost all gone. In 1966 alligators were placed on the Federal endangered list. Because of conservation efforts the trend toward extinction has been reversed, and alligator numbers continue to increase and are no longer considered threatened. The high number of alligators in the freshwater swamps and marshes of coastal Louisiana is unique because there is nowhere else in the United States that could support such a large population of alligators.
Water hyacinth is a floating plant with beautiful purple or lavender flowers. It is a South and Central American native which was introduced into Louisiana by Japanese exhibitors at the 1884 Cotton Exposition in New Orleans. They gave away samples as souvenirs. Now it is the most serious aquatic pest plant in Louisiana. It clogs waterways and lowers the oxygen levels in the water, thus depriving fish and other aquatic species of needed oxygen. It reproduces quickly, forming large floating mats that spread over the surface of the water. These mats of hyacinths block out the sun and put other aquatic plants in the dark.
The Louisiana Black Bear, an endangered species, is suffering the most because of the loss of habitat. The few native black bears that still live in Louisiana today are found in the heavily wooded bottomland hardwood forests of the south central part of the state. Probably the largest number of bears, which still would not be very many, in the coastal zone would be found in the lower Atchafalaya Basin. However, it is not all doom and gloom. There are some success stories.
bear1
buttonclick
buttonclick
mmclose
mmplay clip bear1
stage 2
danger6
* Z h
YM_BeenHere
Louisiana used to have so
many brown pelicans that it
became known as the Pelican
State. The brown pelican is
our state bird and it also is a part of the state seal. Ironically, the Louisiana coast was one of the first places that these birds began to disappear. By 1950, as a result of the effects of pesticides and loss of habitat, there were none left. Fortunately through restoration activites, the brown pelicans were reintroduced into coastal Louisiana and now are thriving primarily on Louisiana's barrier islands. The reintroduction has been so successful that they may be taken off of the threatened and endangered list in the early 21st century. Although this reintroduction has been successful, the brown pelicans' primary habitat, the barrier islands, are still in need of protection due to erosion.ntering habitat.
Water hyacinth is a floating plant with beautiful purple or lavender flowers. It is a South and Central American native which was introduced into Louisiana by Japanese exhibitors at the 1884 Cotton Exposition in New Orleans. They gave away samples as souvenirs. Now it is the most serious aquatic pest plant in Louisiana. It clogs waterways and lowers the oxygen levels in the water, thus depriving fish and other aquatic species of needed oxygen. It reproduces quickly, forming large floating mats that spread over the surface of the water. These mats of hyacinths block out the sun and put other aquatic plants in the dark.
ASYM_BeenHere
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danger3
ASYM_BeenHere
coast
utton
The story is no different in the coastal wetlands
of Louisiana. Man is the key to the disappearance
of many animals either because of unmanaged
hunting or destruction of habitat. Coastal
Louisiana is disappearing at the rate of 35 square
miles per year. As the swamps and marshes
disappear, we lose the plants and animals that
depend on these habitats. Not many Louisianians
know that bison, panthers, and wolves once
roamed our coastal areas. Carolina parakeets and
passenger pigeons use to fill the cypress swamps with song. All are now extinct because man hunted them out of existence. Louisiana's coastal wetlands are home to many species of plants and animals of which 8 are endangered and 4 are threatened. Time and concerned effort will hopefully save the plants, animals, and our coastal wetlands.
danger7
The bald eagle is our national symbol, so
when it became threatened with extinction
in the 1960s due to DDT use, habitat loss,
and other problems created by humans,
people took notice. In the winter these
northern birds migrate south near open
water areas like coastal Louisiana where
fish or other prey are plentiful. Some of
them have even nest in these coastal areas.
Louisiana has the largest number of eagles
in the southeastern United States, outside
of Florida. Southern Bald Eagles migrate
into the area in September and nest in the
winter months. They build their nests in
large cypress or oak trees located on natural levee ridges. Eagles are another success story because recently they have been downlisted to threatened.
eagle
pelican
ASYM_BeenHere
..............
danger2
Why the big ruckus over a few plants and animals? First of all let's look at numbers. Take dinosaurs for instance. We are talking about thousands of species, and that's not counting all the plants that were around at the time. Of course, they all disappeared because of a natural event; humans weren't around then so they didn't present a problem. Let's get a little more specific. Scientists estimate that 500 or more species of plants and animals have become extinct in the United States alone. We may never know the true numbers because some living things are wiped out before humans even discovered them. And so what? Well, many plants and animals have chemical secrets that lead to cures for diseases, ways to protect crops naturally, or even ways to help other species become better food sources. Many living things can tell us about the shape of our environment by telling us of the presence of toxins or pollutants in the water, air, and soil. They also add to the unique beauty and wonder of our world. All things on this earth are connected in some way, and when something happens to one, it somehow affects all.ow affects all.
earth
ASYM_BeenHere
danger3
coast
utton
The story is no different in the coastal wetlands
of Louisiana. Humans are the key to the
disappearance of many animals either because of
unmanaged hunting or destruction of habitat.
Coastal Louisiana is disappearing at the rate of
35 square miles per year. As the swamps and
marshes disappear, we lose the plants and animals
that depend on these habitats. Not many
Louisianians know that bison, panthers, and wolves
once roamed our coastal areas. Carolina parakeets
and passenger pigeons once filled the cypress swamps with sound. Both are now extinct because humans hunted them out of existence. Louisiana's coastal wetlands are home to many species of plants and animals, of which eight are endangered and four threatened. Time and concerned effort will hopefully save the plants, animals, and our coastal wetlands..
ASYM_BeenHere
danger4
The Louisiana Black Bear, an endangered species, is suffering the most because of the loss of habitat. The few native black bears that still live in Louisiana today are found in the heavily wooded bottomland hardwood forests of the south central part of the state. Probably the largest number of bears, which still would not be very many, in the coastal zone would be in lower Atchafalaya Basin. However, it is not all doom and gloom. There are some success stories.ies.
bear1
buttonclick
buttonclick
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stage 2
ASYM_BeenHere
danger6
* Z h
ASYM_BeenHere
pelican
buttonclick
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mmplay clip pelican
stage 2
Louisiana used to have so
many brown pelicans that it
became known as the Pelican
State. The brown pelican is
our state bird and it also is a part of the state seal. Ironically, the Louisiana coast was the first place that these birds began to disappear. By 1950, as a result of the effects of pesticides and loss of habitat, there were none left. Fortunately there is hope for our state bird. Brown pelicans were reintroduced into coastal Louisiana at three sites and seem to be thriving on Louisiana's barrier islands. However, they are still considered endangered and their habitat, the barrier islands, is threatened. Because the barrier islands are eroding away, another threatened bird, piping plovers, also face an uncertain future. ture.
our state bird and it also is a part of the state seal. Ironically, the Louisiana coast was the first place that these birds began to disappear. By 1950, as a result of the effects of certain pesticides and loss of habitat, there were none left. Fortunately there is hope for our state bird. Brown pelicans were reintroduced into coastal Louisiana at three sites and seem to be thriving on Louisianas barrier islands. However, they are still considered endangered and their habitat, the barrier islands, are threatened. Because the barrier islands are eroding away, another threatened bird, Piping Plovers, also face an uncertain future.
our state bird and it also is a part of the state seal. Ironically, the Louisiana coast was the first place that these birds began to disappear. By 1950, as a result of the effects of certain pesticides and loss of habitat, there were none left. Fortunately there is hope for our state bird. Brown pelicans were reintroduced into coastal Louisiana at three sites and seem to be thriving on Louisianas barrier islands. However, they are still considered endangered and their habitat, the barrier islands, are threatened. Because the barrier islands are eroding away, another threatened bird, Piping Plovers, also face an uncertain future.
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