Some of the topics featured include the interplay between total domination in graphs and transversals in hypergraphs, and the association with total domination in graphs and diameter-2-critical graphs.
Gordon H. Orians Livres
Noted ornithologist Gordon Orians and well-known artist Tony Angell portray the physical and behavioral traits of this fascinating family. Orians discusses the various species' adaptations with a provocative introduction to evolutionary biology and behavioral ecology. He describes how blackbirds interact with others of the same species and with the environment how vocal and visual communication signals are related to social organization and how special features of bill musculature and feathering have enabled blackbirds to exploit a remarkable number of feeding niches not available to most other species. Covers the family Icteridae including oropendola cacique oriole blackbird meadowlark grackle bobolink and cowbird.Black and white drawings by Tony Angell.
Although biologists have directed much attention to estimating the extent and causes of species losses, the consequences for ecosystem functioning have been little studied. This book examines the impact of biodiversity on ecosystem processes in tropical forests - one of the most species-rich and at the same time most endangered ecosystems on earth. It covers the relationships between biodiversity and primary production, secondary production, biogeochemical cycles, soil processes, plant life forms, responses to disturbance, and resistance to invasion. The analyses focus on the key ecological interfaces where the loss of keystone species is most likely to influence the rate and stability of ecosystem processes.
