The concept of 'rewilding'—restoring ecosystems by reintroducing large predators and keystone species—has gained traction as a method for biodiversity conservation. Proponents argue that rewilding can restore ecological balance, enhance carbon sequestration, and boost local economies through ecotourism. However, I contend that rewilding is fraught with practical and ethical problems, and its purported benefits are often overstated.
First, rewilding can disrupt existing ecological communities. Reintroducing predators like wolves or bears into areas where they have been absent for decades may lead to unforeseen cascading effects. For example, in Yellowstone National Park, wolf reintroduction reduced elk populations, which helped willow regrowth, but it also decreased coyote numbers and increased scavenger populations, altering the park's entire food web in ways that were not predicted. Such disruptions can harm native species that have adapted to the absence of these predators.
Second, rewilding often conflicts with human land use. In Europe, proposals to reintroduce lynx and bears have met with fierce opposition from farmers and rural communities who fear livestock losses and safety risks. Even with compensation schemes, the social friction can undermine conservation goals, as seen in Norway where wolf management has become a highly polarizing issue, leading to illegal poaching and political deadlock.
Third, rewilding is economically inefficient compared to alternative conservation strategies. The costs of capturing, transporting, and monitoring large animals are enormous, and the success rates are low. For instance, the reintroduction of the Iberian lynx in Spain has cost millions of euros and required extensive habitat restoration, yet the population remains critically endangered. In contrast, protecting existing habitats and implementing anti-poaching measures have been shown to yield more immediate and cost-effective results for biodiversity.
In summary, rewilding poses ecological risks, creates social conflicts, and is a poor use of limited conservation funds.
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The reading presents a pessimistic view of rewilding, but its arguments are flawed and overlook the broader evidence.
First, the claim that rewilding disrupts ecosystems is based on a misunderstanding of ecological dynamics. Ecosystems are not static; they have always been in flux. The Yellowstone example actually demonstrates the success of rewilding: the return of wolves restored a trophic cascade that benefited biodiversity, including beavers, songbirds, and fish. The so-called 'unforeseen' changes were largely positive and predictable by ecological theory. Moreover, without top predators, many ecosystems have become overgrazed and degraded, so reintroducing them is a corrective measure, not a disruption.
Second, the conflict with human interests is not an inherent flaw but a management challenge. Many rewilding projects now involve local communities from the outset, providing jobs in ecotourism and creating economic incentives for conservation. In Portugal, the rewilding of the Côa Valley has brought in millions in tourism revenue and gained local support. The Norwegian wolf conflict is an example of poor planning, not a reason to abandon rewilding globally. With proper engagement, social conflicts can be resolved.
Third, the economic argument ignores the long-term benefits and the high costs of inaction. While initial costs are high, rewilding can reduce the need for continuous habitat management and provide ecosystem services worth billions, such as carbon storage and water purification. The Iberian lynx project has not only increased lynx numbers but also restored a whole ecosystem, benefiting many other species. In contrast, traditional conservation often requires perpetual spending on fences, feeding, and veterinary care, making it less sustainable. Rewilding is an investment in self-sustaining ecosystems.
📝 Инструкция по письму Summarize the points made in the lecture, being sure to explain how they cast doubt on the specific points made in the reading passage.
📊 TOEFL Integrated Writing Rubric
Content Accuracy: Accurately capture the relationship between lecture and reading
Information Completeness: Cover all key counter-arguments from the lecture
Structure & Coherence: Logical organization and progression
Language Use: Grammar, vocabulary, expression accuracy
Scored 0-30 based on holistic scoring (original 0-5, scaled to 30).
