Overexploitation, when so many individuals are removed that a population can no longer sustain itself, has been a major contributor in the decline of land-based species over the last 50 years, and the primary driver of biodiversity loss in marine systems. The decline or extinction of a single species can also change the composition of other species within a habitat, including a shift in species dominance or decrease in the survival ability of the remaining species. Other problems can occur when overexploitation leads to a drop in nearby populations. For instance, when overfishing of one species leads to a decline in by-catch or drives the market to 1A) How can the decline of o species affect other species community? 1B) Describe what industries overexploitation and their eco. outcomes. 1C) How have policymakers addressed overexploitation?
Overexploitation, when so many individuals are removed that a population can no longer sustain itself, has been a major contributor in the decline of land-based species over the last 50 years, and the primary driver of biodiversity loss in marine systems. The decline or extinction of a single species can also change the composition of other species within a habitat, including a shift in species dominance or decrease in the survival ability of the remaining species. Other problems can occur when overexploitation leads to a drop in nearby populations. For instance, when overfishing of one species leads to a decline in by-catch or drives the market to 1A) How can the decline of o species affect other species community? 1B) Describe what industries overexploitation and their eco. outcomes. 1C) How have policymakers addressed overexploitation?
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter55: Biodiversity And Conservation Biology
Section: Chapter Questions
Problem 3TYK
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Transcribed Image Text:Disruption #6: Over-Exploitation
Overexploitation, when so many individuals are
removed that a population can no longer sustain itself, has
been a major contributor in the decline of land-based
species over the last 50 years, and the primary driver of
biodiversity loss in marine systems.
The decline or extinction of a single species can also
change the composition of other species within a habitat,
including a shift in species dominance or decrease in the
survival ability of the remaining species. Other problems
can occur when overexploitation leads to a drop in nearby
populations. For instance, when overfishing of one species
leads to a decline in by-catch or drives the market to
overexploit another, previously unexploited, species.
The most overexploited groups of species are marine
fish and invertebrates (which are fished for food), a variety
of trees, animals hunted for meat, and plants and animals
harvested for medicinal use and trading. Rarity can help
drive up the price for trading, and popularity also lends a
hand: cacti, orchids, and many tropical aquarium fish are
threatened with extinction due to over-collection for
commercial purposes.
There has been some success at the international level
with the Convention on International Trade in Endangered
Species of Wild Fauna and Flora (CITES), which aims to
ensure the international commercial trade in species of wild
1A) How can the decline of one
species affect other species in the
community?
1B) Describe what industries drive
overexploitation and their economic
outcomes.
1C) How have policymakers
addressed overexploitation?
animals and plants does not threaten their survival.
Adapted from US Climate Change Science Program
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