13 Ergebnisse.

Scientists directly involved in studying the Exxon Valdez spill provide a comprehensive synthesis of scientific information on long-term spill effects.

Excerpt from Systematics of the Leptodactylid Frog Genus Telmatobius in the Andes of Northern PeruThe physiography of northern Peru is dominated by the Cordillera Occidental, the Cordillera Central, and the Huancabamba Depression. The Huancabamba Depression is a system of low arid valleys (ca. 1000 - 2000 m above sea level) and isolated mountain ranges (including the Cordillera Colan and Cordillera Huancabamba) that separate the northern and c...

Excerpt from Systematics of the Leptodactylid Frog Genus Telmatobius in the Andes of Northern PeruThe physiography of northern Peru is dominated by the Cordillera Occidental, the Cordillera Central, and the Huancabamba Depression. The Huancabamba Depression is a system of low arid valleys (ca. 1000 - 2000 m above sea level) and isolated mountain ranges (including the Cordillera Colan and Cordillera Huancabamba) that separate the northern and c...

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Short, compelling, but mostly thought-provoking essys that encompass many of the central issues shaping ecology and conservation in the changing world * Collected essays from one of the best known ecologists and conservationists in the world * Includes all issues at the cutting edge of the interface between ecology and conservation * Attractive to a broad audience of ecologists, conservationists, natural resource managers, policy makers, and n...

In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S.

In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S.

The two volumes of John Wiens' Ecology of Bird Communities have applications and importance to the whole field of ecology. The books contain a detailed synthesis of our current understanding of the patterns of organisation of bird communities and of the factors that may determine them, drawing from studies from all over the world. By emphasizing how proper logic and methods have or have not been followed and how different viewpoints have devel...

A major study of avian community ecology.

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Landscape ecology focuses on spatial heterogeneity, or the idea that where things are and where they are in relation to other things can have important consequences for a wide range of phenomena. Landscape ecology integrates humans with natural ecosystems and brings a spatial perspective to such fields as natural resource management, conservation, and urban planning. The thirty-seven papers included in this volume present the origins and devel...

Landscape ecology focuses on spatial heterogeneity, or the idea that where things are and where they are in relation to other things can have important consequences for a wide range of phenomena. Landscape ecology integrates humans with natural ecosystems and brings a spatial perspective to such fields as natural resource management, conservation, and urban planning. The thirty-seven papers included in this volume present the origins and devel...

In this volume, eleven leading systematists provide an overview of recent advances and controversies in morphological phylogenetics. They summarize new methodological developments—including approaches for analyzing ontogenetic data, fossils, morphometric characters, intraspecific variation, and hybrid taxa—and review published studies to evaluate how morphological phylogenetics has actually been practiced. They also discuss the relationship be...