Question

Which one of the following is not a major cause of biodiversity loss? A. Habitat loss B. Climate change C. Invasive Species D. Zoonotic diseases E. Overharvesting

Short answer

D. Zoonotic diseases

Step-by-step solution

Identify the problem

The task is to identify which option among the given choices is not a major cause of biodiversity loss.

Review the options

Consider each option to determine if it is a well-known cause of biodiversity loss.

Analyze each option

A. Habitat loss is a major cause of biodiversity loss as it reduces the living space for various species. B. Climate change affects ecosystems and species survival, leading to biodiversity loss. C. Invasive species can outcompete, prey on, or bring diseases to native species, causing biodiversity loss. D. Zoonotic diseases primarily affect human health and do not directly cause significant biodiversity loss. E. Overharvesting depletes populations of species, leading to biodiversity loss.

Determine the correct answer

Since zoonotic diseases primarily impact humans and are not directly responsible for significant biodiversity loss, D is the correct answer.

Key concepts

Habitat Loss

Habitat loss occurs when natural environments are transformed or destroyed, making them unable to support the species originally present. This can happen through deforestation, urban development, agriculture, and mining. When habitats are lost, species lose their homes, leading to declines or extinctions. Habitat loss fragments populations, making it difficult for species to find mates, food, and shelter. To conserve biodiversity, it's crucial to protect and restore natural habitats and create wildlife corridors to connect fragmented habitats.

Climate Change

Climate change significantly affects biodiversity by altering habitats and changing the conditions under which species thrive. Rising temperatures, changing precipitation patterns, and extreme weather events can lead to habitat shifts, forcing species to migrate or adapt. Some species cannot move quickly enough or lack suitable habitats to migrate to, leading to population declines or extinctions. Efforts to combat climate change include reducing greenhouse gas emissions and implementing adaptive management strategies to help species cope with the changing climate.

Invasive Species

Invasive species are non-native organisms that, once introduced to a new environment, can cause harm to ecosystems and native species. They often outcompete, prey on, or bring diseases to native species, leading to population declines. Invasive species can also alter habitat structures and functions, making it difficult for native species to survive. Managing invasive species involves prevention, early detection, and rapid response to remove them before they establish large populations. Public awareness and education are crucial in preventing the spread of invasive species.

Overharvesting

Overharvesting refers to the unsustainable use of natural resources, including plants, animals, and fish. When species are harvested faster than they can reproduce, populations decline, leading to biodiversity loss. Overharvesting can result from commercial fishing, hunting, logging, and plant collection. Sustainable practices, such as quotas, protected areas, and seasonal restrictions, are vital to ensure that harvesting does not exceed the natural replenishment rate. Supporting sustainable consumer choices and responsible management practices helps protect biodiversity.

Zoonotic Diseases

Zoonotic diseases are infections that are transmitted from animals to humans. While they primarily affect human health, they do not generally cause significant biodiversity loss. However, the link between wildlife and human health highlights the importance of maintaining healthy ecosystems. Disturbing wildlife habitats can increase the risk of zoonotic disease transmission. Ensuring a balanced ecosystem through conservation efforts helps to prevent the emergence and spread of zoonotic diseases, protecting both human health and biodiversity.