Using an Opossum Model Lemelin P and Schmitt D

Introduction 329

Models of Primate Origins: A Review 331 Convergence between Opossums and Primates: Comparative

Studies 334 A Review of Didelphid and Cheirogaleid Ecology and Behavior 335 Substrate Use and Cheiridial Morphology: A Functional Model 339

Morphometric Results 341

Performance Results 346 Convergence between Opossums and Primates: Experimental

Studies 351

Materials and Methods 353

Gait Patterns 356

Arm Protraction 359

Vertical Force Distribution on Limbs 362

Discussion and Conclusions 363

Acknowledgments 368

References 369

11. Evolvability, Limb Morphology, and Primate Origins 381 Hamrick, M. W.

Introduction 381

Theoretical Criteria for Evolvability 383

Evidence for Evolvability in the Autopod 385

Primate Origins: Role of Autopod Evolution 389

Discussion 393

Acknowledgments 396

References 396

12. Primate Gaits and Primate Origins 403

Peculiarities of Primate Gaits 403

Problems of DS Walks 406

DS Walking and Arboreal Locomotion 415

Duty-Factor Ratios and Diagonality 420

DS Gaits: Fine Branches vs. Flat Surfaces 421

Locomotion and the Ancestral Primates 422

Conclusions 427

Acknowledgments 430

References 430

13. Morphological Correlates of Forelimb Protraction in Quadrupedal Primates 437 Larson, S. G.

Introduction 437

Methods 438

Results 442

Discussion 448

Acknowledgments 452

References 452

0 0

Post a comment