Question
In: Biology
Explain why demographic bottlenecks and invasive species are problematic for ecological restoration.
Explain why demographic bottlenecks and invasive species are problematic for ecological restoration.
Solutions
Expert Solution
Demographic bottleneck is a sharp reduction in the size of a population due to environmental factors like floods, earthquakes etc. Invasive species are the species which are not native to a particular environment; they come from some other place and tend to harm the ecosystem, environment and human health.
During bottleneck a large portion of the population is lost. During this process, many alleles are also lost; sometimes the entire germplasm is lost which cannot be brought back even by ecological restoration. So, demographic bottlenecks are a problem for ecological restoration.
When ecological restoration is a concern, then invasive species pose the greatest problem. Invasive species keep providing harm to the ecologically restored species brought into the population via micro and macro-propagation. The newly introduced juvenile population will never be able to survive in presence of invasive species. It is further important to note that once introduced, it is never possible to completely remove the invasive species from an ecosystem. So, ecological restoration is hampered.
gladiator answered 1 year agoRelated Solutions
a) Explain the difference between "non-native species" and "invasive species". b) Provide three examples of invasive...
a) Explain the difference between "non-native species"
and "invasive species".
b) Provide three examples of invasive plants in
California, provide a brief explanation for your examples including
where they are from originally, how they arrived here and became
established, and why they are considered invasive.
The invasive diatom species Didymosphenia geminata has the potential to inflict substantial ecological and economic damage...
The invasive diatom species Didymosphenia geminata has
the potential to inflict substantial ecological and economic damage
in rivers. An article described an investigation of colonization
behavior. One aspect of particular interest was whether
y = colony density was related to
x = rock surface area. The article contained a
scatterplot and summary of a regression analysis. Here is
representative data.
x
50
71
55
50
33
58
79
26
y
164
1941
60
34
14
17
47
19
x
69...
The invasive diatom species Didymosphenia geminata has the potential to inflict substantial ecological and economic damage...
The invasive diatom species Didymosphenia geminata has
the potential to inflict substantial ecological and economic damage
in rivers. An article described an investigation of colonization
behavior. One aspect of particular interest was whether
y = colony
density was related to
x = rock
surface area. The article contained a scatterplot and summary of
a regression analysis. Here is representative data.
x
50
71
55
50
33
58
79
26
y
159
1936
55
29
9
12
42
14
x
69...
The invasive diatom species Didymosphenia geminata has the potential to inflict substantial ecological and economic damage...
The invasive diatom species Didymosphenia geminata has
the potential to inflict substantial ecological and economic damage
in rivers. An article described an investigation of colonization
behavior. One aspect of particular interest was whether
y = colony
density was related to
x = rock
surface area. The article contained a scatterplot and summary of
a regression analysis. Here is representative data.
x
50
71
55
50
33
58
79
26
y
161
1938
57
31
11
14
44
16
x
69...
1. Research one of the invasive species from the list below (or any other invasive species)....
1. Research one of the invasive
species from the list below (or any other invasive species).
Zebra mussel
Cane toad
Asian carp
Kudzu wine
Water hyacinth
European starling
European rabbit (invasive in
Australia)
Gypsy moth
Lionfish
Burmese python
2. Describe the species, upload
a picture, and answer the following questions: where does it
originate? where is it invasive? how did it become invasive? what
damage does it cause? and how could it be controlled? Please cite
sources
Which of the following statements about invasive species is true? -All invasive species were dispersed by...
Which of the following statements about invasive species is
true?
-All invasive species were dispersed by humans
intentionally.
-All species' introductions are harmless.
-Invasive species are a problem for terrestrial environments,
while their impacts are often limited in aquatic environments.
-Invasive species outcompete native species, often changing
their habitats.
Why is an invasive species like water hyacinth so bad for the Delta?
Why is an invasive
species like water hyacinth so bad for the Delta?
4. When can foundation species increase the success of invasive species?
4. When can foundation species increase the success of invasive
species?
1) Species with high FST in their native range tend to spread quickly as invasive species....
1) Species with high FST in their native range tend to
spread quickly as invasive species. True or false?
2) A marine biologist collects a sample of 200 adult
barnacles and determines their genotypes at a locus with 2 alleles
(A, a): 60 AA, 120 Aa and 20 aa. The barnacles randomly mate and
100 of their offspring are sampled and genotyped: 36 AA, 48 Aa, 16
aa. She thinks the change in genotypic frequencies is due to
natural selection....
Should human beings be considered a nonnative (invasive species) or a "keystone species?" In your explanation...
Should human beings be considered a nonnative (invasive species)
or a "keystone species?" In your explanation please use at least
one example of a nonnative species to and one example of a
"keystone" species to help illustrate your point. Show why humans
do or don't act as invasive or keystone species. Use specific
behaviors and impacts in your answers. Limit your response to no
more than 500 words.
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