Arthur R. Kruckeberg – författare

Before any other influences began to fashion life and its lavish diversity, geological events created the initial environments--both physical and chemical--for the evolutionary drama that followed.Drawing on case histories from around the world, Arthur Kruckeberg demonstrates the role of landforms and rock types in producing the unique geographical distributions of plants and in stimulating evolutionary diversification. His examples range throughout the rich and heterogeneous tapestry of the earth's surface: the dramatic variations of mountainous topography, the undulating ground and crevices of level limestone karst, and the subtle realm of sand dunes. He describes the ongoing evolutionary consequences of the geology-plant interface and the often underestimated role of geology in shaping climate.Kruckeberg explores the fundamental connection between plants and geology, including the historical roots of geobotany, the reciprocal relations between geology and other environmental influences, geomorphology and its connection with plant life, lithology as a potent selective agent for plants, and the physical and biological influences of soils. Special emphasis is given to the responses of plants to exceptional rock types and their soils--serpentines, limestones, and other azonal (exceptional) substrates. Edaphic ecology, especially of serpentines, has been his specialty for years.Kruckeberg's research fills a significant gap in the field of environmental science by connecting the conventionally separated disciplines of the physical and biological sciences. Geology and Plant Life is the result of more than forty years of research into the question of why certain plants grow on certain soils and certain terrain structures, and what happens when this relationship is disrupted by human agents. It will be useful to a wide spectrum of professionals in the natural sciences: plant ecologists, paleobiologists, climatologists, soil scientists, geologists, geographers, and conservation scientists, as well as serious amateurs in natural history.

This is the first comprehensive treatment of an important segment of the flora of California: native plants that have varying degrees of fidelity to serpentine rock and soil that make up over 1100 square miles in the Coast Ranges and the Sierra Nevada. Many of California's unique endemic plants are found nowhere else but on serpentine; over 200 species, subspecies, and varieties of native plants are restricted to some degree to serpentine. The author describes the geology, soils, and mineral nutrition of serpentines (low in normal essential nutrients, high in magnesium, iron, and toxic heavy metals, nickel, and chromium), the vegetation and flora that tolerate this inhospitable habitat, the fauna on serpentines, and management/conservation problems associated with serpentines. This is an essential guide to an important aspect of the flora of California.

Carnivorous pitcher plants, pygmy conifers, and the Tiburon jewel flower, restricted to a small patch of serpentine soil on Tiburon Peninsula in Marin County, are just a few of California''s many amazing endemic plants—species that are unique to particular locales. California boasts an abundance of endemic plants precisely because it also boasts the richest geologic diversity of any place in North America, perhaps in the world. In lively prose, Arthur Kruckeberg gives a geologic travelogue of California''s unusual soils and land forms and their associated plants—including serpentines, carbonate rocks, salt marshes, salt flats, and vernal pools—demonstrating along the way how geology shapes plant life. Adding a fascinating chapter to the story of California''s remarkable biodiversity, this accessible book also draws our attention to the pressing need for conservation of the state''s many rare and fascinating plants and habitats. *148 outstanding, accurate photographs, more than 100 incolor, illustrate California''s diverse flora *Covers a wide range of locations including the Channel Islands, the Central Valley, wetlands, bristlecone pine forests, and bogs and fens *Provides selected trip itineraries for viewing the state''s geobotanical wonders *Includes information on human influences on the California landscape from the early Spanish explores through the gold rush and to the present Carnivorous pitcher plants, pygmy conifers, and the Tiburon jewel flower, restricted to a small patch of serpentine soil on Tiburon Peninsula in Marin County, are just a few of California''s many amazing endemic plants—species that are unique to particular