ii List of Figures iv Chapter 1: Introduction 1 Objectives 1 Purgatorious 2 The Bear Formation 3 Evolutionary Theory 4 Modern Genetics and Evolution 7 Spéciation 12 Paleolandscape Studies 15 Chapter 2: Methods and Materials 23 Study Area 31 Chapter 3: Results 33 Chapter 4: Discussion 34 Chapter 5: Conclusion 40 Appendix A 42 References 87

Examination of the structure and function of the mesoscale landscape occupied by Purgatorius genus

Soil Genesis and Classification

Evolutionary history of the primates

SINCE plant ecology first started, as a distinct division of study within the major science of botany, with the publication of Warming's "Plantes-amfund" in 1895 (first German edition in 1896 and an English edition, "Oeeology of Plants", Oxford, 1909), it has owed much of its rapid growth to American workers. In particular, the concept of succession was clarified and systematized, if not conceived, in the United States, and its development has been stimulated and largely directed by the researches, terminology and theories of American ecologists. It is therefore to be expected that textbooks of ecology intended primarily for American students should record progress periodically. Such works naturally have both peculiar value and particular limitations for students in other countries. They direct attention to points of view and literature which might otherwise be overlooked and to examples which might remain unknown. On the other hand, it is not always easy to evaluate the conclusions reached because of unfamiliarity with both the flora involved and the field conditions. The Study of Plant Communities An Introduction to Plant Ecology. By Prof. Henry J. Oosting. Pp. 389. (San Francisco : W. H. Freeman and Co., 1948.) 4.50 dollars.

The Study of Plant Communities

Hylozoism: A Chapter in the Early History of Science

Focusing on how fractal geometry can be used to model real objects in the physical world, this up-to-date edition featurestwo 16-page full-color inserts, problems and tools emphasizing fractal applications, and an answers section. A bonus CD of an IFS Generator provides an excellent software tool for designing iterated function systems codes and fractal images.

Fractals Everywhere

Consideration of spatial dynamics in many areas of ecology has received increased attention during the past decade. For example, the role of disturbance in creating and maintaining a spatial mosaic in the rocky intertidal zone was studied. Patch size could be predicted very well by using a model based on past patterns of disturbance and on measured patterns of mussel movement and recruitment. The dynamics of many natural disturbances and their effects on the spatial mosaic have received considerable study in a variety of terrestrial and aquatic systems. This paper demonstrates that a long history of ecological studies provides a basis for the study of spatial patterns and landscape-level processes. However, the emphasis previously was on describing the processes that created the patterns observed in the biota. The explicit effects of spatial patterns on ecological processes have not been well studied; the emphasis on pattern and process is what differentiates landscape ecology from other ecological disciplines. Therefore, this review focuses on the characterization of landscape patterns and their effects on ecological processes.

Examination of the structure and function of the mesoscale landscape occupied by Purgatorius genus

Citations

Soil Genesis and Classification

Evolutionary history of the primates

The Study of Plant Communities

Hylozoism: A Chapter in the Early History of Science

References

Fractals Everywhere

Landscape Ecology: The Effect of Pattern on Process

Genetics and the Origin of Species

The genetics of populations

Factors of evolution