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Mammal species occupy different climates following the expansion of human impacts
Summary
This article examines how human impacts have changed the climate niches of 46 mammal species in the United States. Using the fossil record, the authors found that 67% of the studied mammals had significantly different climatic niches after the onset of the Industrial Revolution. This change was most noticeable in areas of the range that overlap with human-impacted landscapes. The study suggests that, without mitigation, continued human impacts could lead to a low standing biodiversity dominated by small, generalist mammals.
Q&As
What is the primary focus of the article?
The primary focus of the article is to investigate how changes in geographic range resulting from human impacts have altered the climatic niches of 46 species covering six mammal orders within the contiguous United States.
What percentage of terrestrial ecosystems are altered by human activities?
Seventy-five percent of terrestrial ecosystems are considerably altered by human activities.
How have human impacts affected the biodiversity crisis?
Human impacts have had unprecedented consequences on ecosystem function and rates of species extinctions for thousands of years, contributing to the current biodiversity crisis.
How has the climatic niche of 46 studied mammal species changed since the Industrial Revolution?
Sixty-seven percent of the studied mammals have significantly different climatic niches today than they did before the onset of the Industrial Revolution. Niches changed the most in the portions of the range that overlap with human-impacted landscapes.
What can we expect in the future of biodiversity if mitigation is not achieved?
Without mitigation, as we move further into the Anthropocene, we can anticipate a low standing biodiversity dominated by small, generalist mammals.
AI Comments
๐ This article is a comprehensive study on the impacts of human activity on mammal species, providing a valuable analysis of the fossil record.
๐ The article fails to provide any solutions for mitigating the effects of human activity on mammal species.
AI Discussion
Me: It's about how human activities have altered mammal species' climatic niches over the past few centuries. It also looks at how this could lead to a biodiversity crisis, with small, generalist mammals dominating the landscape as we move further into the Anthropocene.
Friend: Wow, that's really interesting. What are the implications of this article?
Me: Well, the article suggests that human activities are having a direct impact on mammal species' climatic niches, which could lead to a biodiversity crisis. This could mean the loss of large-bodied dietary specialists from certain climates, as well as the colonization of these same areas by smaller, generalist mammals. This could have serious implications for the health of ecosystems, as well as for the humans who rely on them. We should be aware of the potential consequences of human activities and take steps to mitigate them.
Action items
- Research the effects of human impacts on other mammal species in different parts of the world.
- Explore the potential of using trophically integrated ecometric models to monitor changes in mammal communities.
- Investigate the role of urban green areas in providing refuge for native small mammal biodiversity.
Technical terms
- Mammal species
- A group of animals that are warm-blooded, have fur or hair, and feed their young with milk.
- PubMed
- A free search engine for biomedical literature maintained by the National Center for Biotechnology Information (NCBI).
- NLM Catalog
- A searchable database of books, journals, and other materials held by the National Library of Medicine (NLM).
- Industrial Revolution
- A period of rapid industrialization and technological advancement that began in the late 18th century and lasted until the mid-19th century.
- Realized niche
- The actual range of environmental conditions that a species occupies in its natural habitat.
- HNC
- The harmonic niche conservatism, which is a measure of the similarity between the climatic niches of a species in different time intervals.
- Biogeography
- The study of the geographical distribution of species.
- Climatic niche
- The range of environmental conditions that a species is adapted to.
- Anthropocene
- A proposed geological epoch that began with the widespread impact of human activities on the Earth's ecosystems.