One of the United States Food and Drug Administration's most difficult tasks is the assessment of risk-benefit ratios for a broad spectrum of therapeutic and prophylactic drugs.
Simulation models enable land and watershed managers to make precise, authoritative determinations about the affects of various changes on the environment over time.
Succession-nothing in plant, community, or ecosystem ecology has been so elaborated by terminology, so much reviewed, and yet so much the center of controversy.
The advent of ecosystem ecology has created great difficulties for ecologists primarily trained as biologists, since inevitably as the field grew, it absorbed components of other disciplines relatively foreign to most ecologists yet vital to the understanding of the structure and function of ecosystems.
The rapid increase in environmental measurements during the past few decades is associated with (1) increasing awareness of the complex relations linking biological responses to atmospheric variables, (2) development of improved data acquisition and handling equipment, (3) the application of modeling to environmental problems, and (4) the implementation of large, cooperative studies of international scope.
This series is dedicated to serving the growing community of scholars and practitioners concerned with the principles and applications of environmen- tal management.
This series is dedicated to serving the growing community of scholars and practitioners concerned with the principles and applications of environ- mental management.
Worldwide concern in scientific, industrial, and governmental com- munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
Worldwide concern in scientific, industrial, and governmental com- munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
Worldwide concern in scientific, industrial, and governmental com- munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
Worldwide concern in scientific, industrial, and governmental com- munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
Worldwide concern in scientific, industrial, and governmental com- munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
The impetus for this book came from numerous requests by public and private agencies and citizens for information regarding the human health effects of pes- ticide exposures.
This conference represents the first time in my life when I felt it was a misfor- tune, rather than a major cause of my happiness, that I do conservation work in New Guinea.
The information presented in this book is the result of combined research efforts of scientists at the University of Alaska, Fairbanks, the Institute of Northern Forestry, USDA Forest Service, and the Systems Ecology Research Group, San Diego State University.
Global attention in scientific, industrial, and governmental communities to traces of toxic chemicals in foodstuffs and in both abiotic and biotic environ- ments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations.
Vector transmission of pathogens affecting human, animal, and plant health continues to plague mankind both in industrialized and Third World coun- tries.
Conceptual separation of humans and natural ecosystems is reflected in the thinking of most natural resource management professions, including for- estry, wildlife management, fisheries, range management, and watershed management (Burch 1971).
Ivermectin and abamectin, members of the avermectin family of compounds, were introduced to the market in the 1980's as a veterinary antiparasitic drug and agricultural pesticide, respectively.
Knowledge in the field of acidic deposition is expanding rapidly, and both ex- perts and non-experts are challenged to keep up with the latest information.
Soil is formed from the physical and chemical weathering of rocks-processes described historically because they involve eons of time-by glaciation, and by wind and water transport of soil materials, later deposited in deltas and loessial planes.
The Oak Ridge National Laboratory's Environmental Sciences Division initiated the Walker Branch Watershed Project on the Oak Ridge Reservation in east Tennessee in 1967, with the support of the U.
Regional intercomparisons between ecosystems on different continents can be a powerful tool to better understand the ways in which ecosystems respond to global change.
Reviews of Environmental Contamination and Toxicology contains timely review articles concerned with all aspects of chemical contaminants (including pesticides) in the total environment, including toxicological considerations and consequences.
Biochemistry and Physiology oj Plant Hormones is intended primarily as a textbook or major reference for a one-term intermediate-level or advanced course dealing with hormonal regulation of growth and development of seed plants for students majoring in biology, botany, and applied botany fields such as agronomy, forestry, and horticulture.
When we originally published Biogeochemistry of a Forested Ecosystem in 1977, the Hubbard Brook Ecosystem Study (HBES) had been in existence for 14 years, and we included data through 1974, or a biogeo- chemical record of 11 years.
The chapters in this book represent detailed versions of papers presented at the Symposium on Viral Genes and Plant Pathogenesis held at Lexington, Kentucky on October 16 and 17, 1989.
The study of soils today has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experienced.
