Human Ecology

, Volume 47, Issue 5, pp 669–679 | Cite as

Where the Wild Things were is Where Humans are Now: an Overview

  • J. L. R. AbegãoEmail author


Humanity is undergoing an unprecedented demographic transformation in that global population is rising from 2 billion in the 1920s to an expected 8 billion in the 2020s, an annual increase of roughly 80 million. The requirements of this expanding human population are strongly linked to depletion of wildlife and increasing difficulties facing both wildlife and environmental conservation efforts. I assess current and potential risks stemming from the environmental changes due to unchecked human population growth.


Overpopulation Population growth Habitat and wildlife conservation Biodiversity Environmental degradation 


Compliance with Ethical Standards

Conflict of Interest

The author declares he has no conflict of interest.


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Authors and Affiliations

  1. 1.Faculty of SciencesUniversity of LisbonLisbonPortugal

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