Cumulative Effects In Wildlife Management

As humans continue to encroach on wildlands, quality and quantity of wildlife habitat decreases before our eyes. A housing development here, a shopping mall there, a few more trees cut here, another road put in there, each of these diminishes available habitat. Unless the cumulative effects of multiple simultaneous development projects are recogniz

Marine mammals face a large array of stressors, including loss of habitat, chemical and noise pollution, and bycatch in fishing, which alone kills hundreds of thousands of marine mammals per year globally. To discern the factors contributing to population trends, scientists must consider the full complement of threats faced by marine mammals. Once populations or ecosystems are found to be at risk of adverse impacts, it is critical to decide which combination of stressors to reduce to bring the population or ecosystem into a more favorable state. Assessing all stressors facing a marine mammal population also provides the environmental context for evaluating whether an additional activity could threaten it. Approaches to Understanding the Cumulative Effects of Stressors on Marine Mammals builds upon previous reports to assess current methodologies used for evaluating cumulative effects and identify new approaches that could improve these assessments. This review focuses on ways to quantify exposure-related changes in the behavior, health, or body condition of individual marine mammals and makes recommendations for future research initiatives.

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"Recent discoveries of diamondiferous kimberlite deposits in the Canadian central Arctic led to unprecedented levels of mineral exploration and development. The cumulative effects of such activities are an issue of concern for government regulatory agencies, regional and international conservation organizations, wildlife managers, and indigenous peoples. We investigated the impacts of human activities and associated infrastructure on the distribution of Arctic wildlife square km of the Taiga Shield and Southern Arctic ecozones 400 km northeast of Yellowknife, Northwest Territories, Canada"--page 1.

This book "offers a road map for securing North America's energy future while safeguarding its wildlife heritage. Contributing authors, including researchers, managers, planners, and conservationists, show how science can help craft solutions to conflicts between wildlife and energy development by delineating core areas, identifying landscapes that support viable populations, and forecasting future development scenarios and conservation design."--Publisher.

Evaluates four alternatives for managing mining activity, analyzing cumulative effects, and mitigating environmental impacts in Denali National Park and Preserve. Complements similar study on Wrangell-St. Elias National Park and Preserve, and Yukon-Charley Rivers National Preserve.