The book "An Essay on the Principle of Population" was written by:

"An Essay on the Principle of Population," authored by Thomas Robert Malthus, presents foundational ideas on population growth and its implications for resources. In this seminal work, Malthus argued that populations tend to grow exponentially while food production increases at an arithmetic rate. This imbalance, he posited, would inevitably lead to scarcity and competition for resources, influencing human societies and their development.

Malthus' theories laid the groundwork for the field of demography and have influenced various disciplines, including ecology, economics, and sociology. His ideas on the carrying capacity of environments and the checks on population growth, such as famine, disease, and war, remain pertinent in discussions about sustainability and resource management today.

Understanding Malthus' contributions is crucial, as they provide insight into ecological dynamics, particularly concerning the relationships between species populations and the availability of resources, which is central to wildlife ecology and conservation efforts.