WorldCat Identities

DeAngelis, D. L. (Donald Lee) 1944-

Overview
Works: 60 works in 145 publications in 2 languages and 2,155 library holdings
Genres: Conference papers and proceedings  Case studies 
Roles: Author, Editor, htt
Publication Timeline
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Most widely held works by D. L DeAngelis
Dynamics of nutrient cycling and food webs by D. L DeAngelis( Book )

18 editions published in 1992 in English and held by 498 WorldCat member libraries worldwide

In all fields of science today, data are collected and theories are developed and published faster than scientists can keep up with, let alone thoroughly digest. In ecology the fact that practitioners tend to be divided between such subdisciplines as aquatic and terrestrial ecology, as well as between popula­ tion, community, and ecosystem ecology, makes it even harder for them to keep up with all relevant research. Ecologists specializing in one sub­ discipline are not always aware of progress in another subdiscipline that relates to their own. Syntheses are frequently needed that pull together large bodies of information and organize them in ways that makes them more coherent, and thus more understandable. I have tried to perform this task of integration for the subject area that encompasses the interrelationships between the dynamics of ecological food webs and the cycling of nutrients. I believe this area cuts across many of the subdisciplines of ecology and is pivotal to our progress in understanding ecosystems and in dealing with human impacts on the environment. Many current ecological problems involve human disturbances of both food webs and the nutrients that cycle through them. Little progress can be made towards elucidating the complex feedback relations inherent in the study of nutrient cycles in ecological systems without the tools of mathematics and computer modelling. These tools are therefore liberally used throughout the book
Theory and practice of soil loss control in Eastern China by J. C Zhang( )

10 editions published in 2011 in English and held by 395 WorldCat member libraries worldwide

In recent decades in eastern China there has been great progress towards ecological restoration through reforestation of bare lands and steeply sloping cultivated land suffering from serious erosion. This book introduces several soil loss control models suitable for land use strategies along with many techniques of reforestation with a focus on improving the living standards of farmers. These strategies include "local recycling," which combines the use of trees (fruit trees, herb, bamboo), crops for feeding livestock, use of animal wastes for biogas and fertilizer, fish production, and a "large scale recycling," fostering the interaction between the countryside of the mountainous areas and the urban areas in the lower elevations. The "local recycling" can alleviate poverty for farmers and provide fuel material that replaces dependence on twigs and tree litter, which in turn protects the reforested young trees from being harmed. The "large scale recycling" creates a more harmonious society and promotes the common health and wealth of the countryside and the city. This book presents the most comprehensive and successful models of reforestation in eastern China
Positive feedback in natural systems by D. L DeAngelis( Book )

14 editions published between 1986 and 2012 in 3 languages and held by 369 WorldCat member libraries worldwide

Cybernetics, a science concerned with understanding how systems are regulated, has reflected the preoccupations of the century in which it was born. Regulation is important in twentieth century society, where both machines and social organizations are complex. Cybernetics focused on and became primarily associated with the homeostasis or stability of system behavior and with the negative feedbacks that stabilize systems. It paid less attention to the processes opposite to negative feedback, the positive feedback processes that act to change systems. We attempt to redress the balance here by illustrating the enormous importance of positive feedbacks in natural systems. In an article in the American Scientist in 1963, Maruyama called for increased attention to this topic, noting that processes of change could occur when a "deviation in anyone component of the system caused deviations in other components that acted back on the first component to reinforce of amplify the initial deviation." The deviation amplification is the result of positive feedback among system components. Maruyama demonstrated by numerous examples that the neglect of such processes was unjustified and suggested that a new branch of cybernetics, "the second cybernetics," be devoted to their study
Individual-based models and approaches in ecology : populations, communities, and ecosystems by D. L DeAngelis( Book )

22 editions published between 1992 and 2018 in English and held by 365 WorldCat member libraries worldwide

"Until fairly recently, populations were handled as homogenized averages, which made modeling feasible but which ignored the essential fact that in any population there is a great variety of individuals of different ages, sizes, and degrees of fitness. Recently, because of the increased availability of affordable computer power, approaches have been developed which are able to recognize individual differences. Individual-based models are of great use in the areas of aquatic ecology, terrestrial ecology, landscape or physiological ecology, terrestrial ecology, landscape or physiological ecology, and agriculture. This book discusses which biological problems individual-based models can solve, as well as the models' inherent limitations. It explores likely future directions of theoretical development in these models, as well as currently feasible management applications and the best mathematical approaches and computer languages to use. The book also details specific applications to theory and management."--Provided by publisher
Mathematical models of plant-herbivore interactions by Zhilan Feng( )

10 editions published between 2017 and 2018 in English and held by 165 WorldCat member libraries worldwide

"Mathematical Models of Plant-Herbivore Interactions addresses mathematical models in the study of practical questions in ecology, particularly factors that affect herbivory, including plant defense, herbivore natural enemies, and adaptive herbivory, as well as the effects of these on plant community dynamics. The result of extensive research on the use of mathematical modeling to investigate the effects of plant defenses on plant-herbivore dynamics, this book describes a toxin-determined functional response model (TDFRM) that helps explains field observations of these interactions. This book is intended for graduate students and researchers interested in mathematical biology and ecology."--Provided by publisher
A model for the movement and distribution of fish in a body of water by D. L DeAngelis( Book )

3 editions published in 1978 in English and held by 66 WorldCat member libraries worldwide

Stability criteria for multi-species ecological communities by W. M Post( Book )

2 editions published in 1978 in English and held by 59 WorldCat member libraries worldwide

A computer program to plot isotherms in bodies of water by D. L DeAngelis( Book )

2 editions published in 1978 in English and held by 58 WorldCat member libraries worldwide

An empirical model of impingement impact by L. W Barnthouse( Book )

2 editions published in 1979 in English and held by 29 WorldCat member libraries worldwide

The effect of stochastic variation on estimates of the probability of entrainment mortality : methodology, results, and users guide by Sigurd W Christensen( Book )

2 editions published in 1982 in English and held by 18 WorldCat member libraries worldwide

Modelling complex ecological dynamics : an introduction into ecological modelling for students, teachers & scientists by Fred Jopp( Book )

1 edition published in 2011 in English and held by 14 WorldCat member libraries worldwide

Model development is of vital importance for understanding and management of ecological processes. Identifying the complex relationships between ecological patterns and processes is a crucial task. Ecological modelling both qualitatively and quantitatively plays a vital role in analysing ecological phenomena and for ecological theory. This textbook provides a unique overview of modelling approaches. Representing the state of the art in modern ecology, it shows how to construct and work with various different model types. It introduces the background of each approach and its application in ecology. Differential equations, matrix approaches, individual-based models and many other relevant modelling techniques are explained and demonstrated with their use. The authors provide links to software tools and course materials. With chapters written by leading specialists, "Modelling Complex Ecological Dynamics" is an essential contribution to expand the qualification of students, teachers and scientists alike. --Book Jacket
Current trends in food web theory : report on a food web workshop, October 25-27, 1982, Fontana Village Inn, North Carolina by Oak Ridge National Laboratory( Book )

4 editions published in 1983 in English and held by 10 WorldCat member libraries worldwide

Analysis of nonlinear matrix equations for fish population dynamics by L. J Svoboda( Book )

2 editions published in 1980 in English and held by 9 WorldCat member libraries worldwide

P.H. Leslie's matrix model, which predicts population size of individual age classes in discrete time intervals, is examined. Leslie's original constant matrix, as well as the more general nonconstant matrix, to which density-dependence (compensation) has been added, are discussed. The properties of the matrix itself and the properties of the modeled population are presented for each type of model. A population is modeled with the probability of survival of the 0/sup th/ age class, p sub 0, assumed to be density dependent. The stability of this population, i.e., ability to maintain steady-state, is predicted. It is shown that a population modeled with p sub 0 depending only on the population size of age class 0 will always be stable. When p sub 0 depends on the populations of older age classes it is possible for the population to be unstable, depending on the specific functional relationship
Competition by Michael B Usher( )

1 edition published in 2001 in English and held by 7 WorldCat member libraries worldwide

Structure and Dynamics of Fungal Populations by Michael B Usher( )

1 edition published in 2012 in English and held by 6 WorldCat member libraries worldwide

Analytical Population Dynamics by Michael B Usher( )

1 edition published in 1992 in English and held by 5 WorldCat member libraries worldwide

A model for the dispersal of seeds by animals( Book )

2 editions published in 1977 in English and held by 5 WorldCat member libraries worldwide

A model for the movement and distribution of fish in a body of water by D. L DeAngelis( Book )

2 editions published in 1978 in English and held by 5 WorldCat member libraries worldwide

Biology of Rarity : Causes and consequences of rarecommon differences by Michael B Usher( )

1 edition published in 2012 in English and held by 5 WorldCat member libraries worldwide

 
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Dynamics of nutrient cycling and food webs
Covers
Theory and practice of soil loss control in Eastern ChinaIndividual-based models and approaches in ecology : populations, communities, and ecosystemsModelling complex ecological dynamics : an introduction into ecological modelling for students, teachers & scientists
Alternative Names
Angelis, Donald L. de 1944-

Deangelis, D.

DeAngelis, D. L.

DeAngelis, Don L.

DeAngelis, Donald L.

DeAngelis, Donald L. 1944-

DeAngelis, Donald Lee.

DeAngelis, Donald Lee 1944-

Languages
English (99)

German (1)