Describe two of the threats facing native species inHawaii, and two actions people have taken to address thesethreats. What new trend is now jeopardizing some ofthese efforts? What steps do you think might be requiredin the future if we are to safeguard native species inmountainous habitats in places like Hawaii?
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Describe two of the threats facing native species in
Hawaii, and two actions people have taken to address these
threats. What new trend is now jeopardizing some of
these efforts? What steps do you think might be required
in the future if we are to safeguard native species in
mountainous habitats in places like Hawaii?
Step by step
Solved in 3 steps
- What kind of conservation strategies have been or should be implemented to the Hawaiian islands in order to avoid native bird populations declining or going extinct due to avian malaria?Conservation status of specieschanges often as new threatsarise and current threatssubside. Fish and marine lifeare often threatened by humanactivities such as overfi shing,pollution of ocean and freshwater habitats, and climatechanges. When it comes tomaking choices about whatseafood to purchase andconsume, what resources areavailable to consumers to knowthat fi sh they are buying is notvulnerable or endangered?Give two examples of the benefits gained by theintroduction of nonnative species. Give two examplesof the harmful effects of nonnative species that havebeen introduced deliberately and two examples of thesame for accidentally introduced species. Explain whyprevention is the best way to reduce threats frominvasive species and list four proposed ways to implement this strategy
- Environmental scientists David Pimentel, Rodolfo Zuniga, and Doug Morrison of Cornell University reviewed scientific estimates for the economic and ecological costs imposed by introduced and invasive species in the United States. They found that, as of 2005, approximately 50,000 species had been introduced in the United States and that these accountedfor over $120 billion in economic costs each year. These costs include direct losses and damage, as well as costs required to control the species. (The researchers did not quantify monetary estimates for losses of biodiversity, ecosystem services, and aesthetics, which they said would drive total costs several times higher.) Calculate values missing from the table to determine the number of introduced species of each type of organism and the annual cost that each imposes on our economy. Of the 50,000 species introduced into the UnitedStates, half are plants. Describe two ways in whichnon-native plants might be brought to a new location.How…The Barton Springs salamander is an endangered species found only inthree adjacent springs in the city of Austin, Texas. There is growingconcern that a chemical spill on a nearby freeway could pollute thespring and wipe out the species. To provide a source of salamanders torepopulate the spring in the event of such a catastrophe, a proposal hasbeen made to establish a captive breeding population of the salamanderin a local zoo. You are asked to provide a plan for the establishment ofthis captive breeding population, with the goal of maintaining as muchof the genetic variation of the species as possible. What factors mightcause loss of genetic variation in the establishment of the captivepopulation? How could loss of such variation be prevented? With theassumption that only a limited number of salamanders can bemaintained in captivity, what procedures should be instituted to ensurethe long-term maintenance of as much variation as possible?Why do scientists consider invasive species to bea problem? What makes a species “invasive,” andwhat ecological effects can invasive species have?Give examples.
- Describe two of the threats facing native species at Hakalau Forest NWR or elsewhere in Hawai‘i, and two actions people have taken to address these threats. What new trend is now jeopardizing some of these efforts? What steps do you think might be required in the future to safeguard native species, populations, and communities in mountainous habitats in places like Hawai‘i?Name two reasons that a large national park like Serengetior Yellowstone might not be adequate to effectivelyconserve a population of a threatened species. What solutionsexist to address these reasons?Match the invasive species with the appropriate descriptor Since its introduction into Guam, has decimated the local bird population [ Choose ] Kudzu Vine Asian Long Horned Beetle European Rabbit Fossa Monarch Butterfly Asian Carp Dutch Elm Disease Black Rat Burmese Python Asian Tiger Mosquito Fruit Bat Cane Toad Brown Tree Snake Lionfish Estimated to have killed nearly 75% of the species of trees it infected after it was introduced into North America [ Choose ] Kudzu Vine Asian Long Horned Beetle European Rabbit Fossa Monarch Butterfly Asian Carp Dutch Elm Disease Black Rat Burmese Python Asian Tiger Mosquito Fruit Bat…
- What are the top 3 hazards posed by alien invasive species? Also provide a list of invasive species of federal capital and their individual management proposed by different agencies.for species invasion what are the mechanism(s) by which invasive species overcome these barriers to immigration that exist in stable ecosystemsCan anyone suggest any scholarly journals, articles, reports, whatever you could help out with that covers the following question (please provide links). What are considered other problematic species that can pose significant threats, possibly due to population declines from habitat loss or overexploitation? NOT on INVASIVE SPECIES, I have more than enough information on that subject.