Preface to the Princeton Landmarks in Biology Edition vii Preface xi Symbols Used xiii 1. The Importance of Islands 3 2. Area and Number of Speicies 8 3. Further Explanations of the Area-Diversity Pattern 19 4. The Strategy of Colonization 68 5. Invasibility and the Variable Niche 94 6. Stepping Stones and Biotic Exchange 123 7. Evolutionary Changes Following Colonization 145 8. Prospect 181 Glossary 185 References 193 Index 201

The Theory of Island Biogeography

https://www.cs.princeton.edu/~schapire/papers/ecolmod.pdf

Maximum entropy modeling of species geographic distributions

The influence of diet on the distribution of nitrogen isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant nitrogen isotopic composition. 
The isotopic composition of the nitrogen in an animal reflects the nitrogen isotopic composition of its diet. The δ^(15)N values of the whole bodies of animals are usually more positive than those of their diets. Different individuals of a species raised on the same diet can have significantly different δ^(15)N values. The variability of the relationship between the δ^(15)N values of animals and their diets is greater for different species raised on the same diet than for the same species raised on different diets. Different tissues of mice are also enriched in ^(15)N relative to the diet, with the difference between the δ^(15)N values of a tissue and the diet depending on both the kind of tissue and the diet involved. The δ^(15)N values of collagen and chitin, biochemical components that are often preserved in fossil animal remains, are also related to the δ^(15)N value of the diet. 
The dependence of the δ^(15)N values of whole animals and their tissues and biochemical components on the δ^(15)N value of diet indicates that the isotopic composition of animal nitrogen can be used to obtain information about an animal's diet if its potential food sources had different δ^(15)N values. The nitrogen isotopic method of dietary analysis probably can be used to estimate the relative use of legumes vs non-legumes or of aquatic vs terrestrial organisms as food sources for extant and fossil animals. However, the method probably will not be applicable in those modern ecosystems in which the use of chemical fertilizers has influenced the distribution of nitrogen isotopes in food sources. 
The isotopic method of dietary analysis was used to reconstruct changes in the diet of the human population that occupied the Tehuacan Valley of Mexico over a 7000 yr span. Variations in the δ^(15)C and δ^(15)N values of bone collagen suggest that C_4 and/or CAM plants (presumably mostly corn) and legumes (presumably mostly beans) were introduced into the diet much earlier than suggested by conventional archaeological analysis.

Influence of Diet On the Distribtion of Nitrogen Isotopes in Animals

The principles of classification and a classification of mammals. Bulletin of the AMNH ; v. 85

It is often claimed that we do not understand the forces driving the global diversity gradient. However, an extensive literature suggests that contemporary climate constrains terrestrial taxonomic richness over broad geographic extents. Here, we review the empirical literature to examine the nature and form of the relationship between climate and richness. Our goals were to document the support for the climatically based energy hypothesis, and within the constraints imposed by correlative analyses, to evaluate two versions of the hypothesis: the productivity and ambient energy hypotheses. Focusing on studies extending over 800 km, we found that measures of energy, water, or water-energy balance explain spatial variation in richness better than other climatic and non-climatic variables in 82 of 85 cases. Even when considered individually and in isolation, water/ energy variables explain on average over 60% of the variation in the richness of a wide range of plant and animal groups. Further, water variables usually represent the strongest predictors in the tropics, subtropics, and warm temperate zones, whereas energy variables (for animals) or water-energy variables (for plants) dominate in high latitudes. We conclude that the interaction between water and energy, either directly or indirectly (via plant productivity), provides a strong explanation for globally extensive plant and animal diversity gradients, but for animals there also is a latitudinal shift in the relative importance of ambient energy vs. water moving from the poles to the equator. Although contemporary climate is not the only factor influencing species richness and may not explain the diversity pattern for all taxonomic groups, it is clear that understanding water-energy dynamics is critical to future biodiversity research. Analyses that do not include water-energy variables are missing a key component for explaining broad-scale patterns of diversity.

/pdf/energy-water-and-broad-scale-geographic-patterns-of-species-4muvqfsaj0.pdf

Energy, water, and broad-scale geographic patterns of species richness

Tables & Illustrations. Preface. Adaptation, Evolution, and Systematics. The Primate Body. Primate Lives. Prosimians. New World Anthropoids. Old World Monkeys. Apes and Humans. Primate Communities. Primate Adaptations. The Fossil Record. Primate Origins. Fossil Prosimians. Early Anthropoids. Fossil Platyrrhines. Fossil Apes. Fossil Old World Monkeys. Hominids, the Bipedal Primates. Patterns in Primate Evolution. Index.

Primate Adaptation and Evolution

In 1967 the Kibish Formation in southern Ethiopia yielded hominid cranial remains identified as early anatomically modern humans, assigned to Homo sapiens. However, the provenance and age of the fossils have been much debated. Here we confirm that the Omo I and Omo II hominid fossils are from similar stratigraphic levels in Member I of the Kibish Formation, despite the view that Omo I is more modern in appearance than Omo II. 40Ar/39Ar ages on feldspar crystals from pumice clasts within a tuff in Member I below the hominid levels place an older limit of 198 +/- 14 kyr (weighted mean age 196 +/- 2 kyr) on the hominids. A younger age limit of 104 +/- 7 kyr is provided by feldspars from pumice clasts in a Member III tuff. Geological evidence indicates rapid deposition of each member of the Kibish Formation. Isotopic ages on the Kibish Formation correspond to ages of Mediterranean sapropels, which reflect increased flow of the Nile River, and necessarily increased flow of the Omo River. Thus the 40Ar/39Ar age measurements, together with the sapropel correlations, indicate that the hominid fossils have an age close to the older limit. Our preferred estimate of the age of the Kibish hominids is 195 +/- 5 kyr, making them the earliest well-dated anatomically modern humans yet described.

Stratigraphic placement and age of modern humans from Kibish, Ethiopia

The locomotor behavior, of seven sympatric species of New World monkeys—Saguinus midas midas, Saimiri sciureus, Pithecia pithecia, Chiropotes satanas chiropotes, Cebus apella apella, Alouatta seniculus, and Ateles paniscus panisus—was studied at the Raleighvallen-Voltzberg Nature Reserve in Central Surinam This paper examines the way in which locomotor behavior is related to body size and to ecological parameters such as forest stratification, forest type, and diet



Locomotor behavior is clearly related to the size of the species; with increasing size, the amount of climbing increases and the amount of leaping decreases In general, larger monkeys use larger arboreal supports; however, Saguinus midas midas uses relatively larger, and Ateles paniscus paniscus relatively smaller supports than expected from body size alone



Leaping is associated with use of the forest understory and with use of liane forest Other types of locomotion are associated with main canopy use in a variety of forest types



There are no consistent associations between diet and either locomotor behavior or forest utilization; rather, monkeys with similar diets show locomotor and habitat differentiation

Locomotor behavior, body size, and comparative ecology of seven Surinam monkeys

For many years John Fleagle's text on the adaptation and evolution of primates and early hominoid fossils was the the text of choice for teachers and research workers alike. Now, as the only such work in print, this new edition brings this coverage up to date with the latest fossil finds and most current research. The book retains its grounding in the extant primate groups as the best way to understand the fossil trail and the evolution of these modern forms. But this coverage is now streamlined, making reference to the many new and excellent books on living primate ecology and adaptation - a field that has burgeoned since the first edition of Primate Adaptation and Evolution. By drawing out the key features of the extant families and referring to more detailed texts, Fleagle sets the scene and also creates space for a thorough updating of the exciting developments in primate palaeontology - and the reconstruction through early hominid species - of our own human origins. Illustrated with many of the classic pictures from earlier editions - and whole new suite of illustrations, revised evolutionary trees and tables - this book remains the indispensible text on this fascinating subject. * Long-awaited revision of the standard student text on primate evolution* Full coverage of newly discovered fossils and the latest taxonomy* Over 200 new illustrations and revised evolutionary trees

Primate Adaptation and Evolution.

Wild, adult siamang were observed for over 800 h in lowland dipterocarp forest in the Krau Game Reserve, Pahang, West Malaysia. Siamang use four patterns of locomotion: brachiation, climbing, bipedalism and leaping. The pattern of locomotion used by the siamang varies with the size of arboreal supports and with major behavioral activity. Travel is primarily by brachiation along large boughs. Locomotion during feeding is primarily climbing among small branches. In feeding, siamang use suspensory postures among small supports and seated postures on large supports. Comparison of siamang locomotion and posture with that of other apes suggest that quadramanous climbing during feeding is the basic hominoid locomotor adaptation.

John G. Fleagle

Papers

Primate Adaptation and Evolution

Stratigraphic placement and age of modern humans from Kibish, Ethiopia

Locomotor behavior, body size, and comparative ecology of seven Surinam monkeys

Primate Adaptation and Evolution.

Locomotion and posture of the Malayan siamang and implications for hominoid evolution.