The Social Significance of Geographic Variation in the Push-up Display of California Populations of the Side-blotched Lizard (Uta Stansburiana) PDF Download

Author: Stacy N. Cornelius
Publisher:
ISBN:
Category : Lizards
Languages : en
Pages : 154

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Author: Steven James Micheletti
Publisher:
ISBN:
Category : Animal population density
Languages : en
Pages : 94

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Author: Hei Yan Yu
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Variation in sexual display rate can induce variation in the ventral posterior amygdala (VPA), an area of the brain involved in reproductive behaviors. Specifically, increased sexual displays in the breeding season is correlated with increased VPA attributes. Previous research has demonstrated that higher rates of sexual displays are associated with a larger VPA volume and neuron soma size. However, it remains unclear if individuals residing in different populations reflect results found within the laboratory, as there are likely many more selective pressures in the field with which to contend. Thus, in the current study, we examined variation in VPA attributes of wild-caught side-blotched lizards (Uta stansburiana) from two different states, Oregon and Nevada. In the Nevada population, males have lower display rates than that found in the Oregon population, likely due to increased predation pressures in the Nevada population. Mirroring this, we found that the Nevada population exhibited decreased VPA volume and VPA cell volume suggesting that decreased display rates in the face of predation is associated with downregulated VPA attributes in the field.

Author: Roy W. McDiarmid
Publisher: Univ of California Press
ISBN: 0520266714
Category : Nature
Languages : en
Pages : 424

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“Authoritative and comprehensive—provides an up-to-date description of the tool box of methods for inventorying and monitoring the diverse spectrum of reptiles. All biodiversity scientists will want to have it during project planning and as study progresses. A must for field biologists, conservation planners, and biodiversity managers.”—Jay M. Savage, San Diego State University “Kudos to the editors and contributors to this book. From the perspective of a non-ecologist such as myself, who only occasionally needs to intensively sample a particular site or habitat, the quality and clarity of this book has been well worth the wait.”—Jack W. Sites, Jr.

Author: Joan Roughgarden
Publisher: Univ of California Press
ISBN: 0520957970
Category : Science
Languages : en
Pages : 491

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In this innovative celebration of diversity and affirmation of individuality in animals and humans, Joan Roughgarden challenges accepted wisdom about gender identity and sexual orientation. A distinguished evolutionary biologist, Roughgarden takes on the medical establishment, the Bible, social science—and even Darwin himself. She leads the reader through a fascinating discussion of diversity in gender and sexuality among fish, reptiles, amphibians, birds, and mammals, including primates. Evolution's Rainbow explains how this diversity develops from the action of genes and hormones and how people come to differ from each other in all aspects of body and behavior. Roughgarden reconstructs primary science in light of feminist, gay, and transgender criticism and redefines our understanding of sex, gender, and sexuality. Witty, playful, and daring, this book will revolutionize our understanding of sexuality. Roughgarden argues that principal elements of Darwinian sexual selection theory are false and suggests a new theory that emphasizes social inclusion and control of access to resources and mating opportunity. She disputes a range of scientific and medical concepts, including Wilson's genetic determinism of behavior, evolutionary psychology, the existence of a gay gene, the role of parenting in determining gender identity, and Dawkins's "selfish gene" as the driver of natural selection. She dares social science to respect the agency and rationality of diverse people; shows that many cultures across the world and throughout history accommodate people we label today as lesbian, gay, and transgendered; and calls on the Christian religion to acknowledge the Bible's many passages endorsing diversity in gender and sexuality. Evolution's Rainbow concludes with bold recommendations for improving education in biology, psychology, and medicine; for democratizing genetic engineering and medical practice; and for building a public monument to affirm diversity as one of our nation's defining principles.

Author: Dr. Allison C. Alberts
Publisher: Univ of California Press
ISBN: 0520930118
Category : Science
Languages : en
Pages : 374

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In what is certain to be the key reference on iguanas for years to come, some of the world's leading experts offer a clear and accessible account of the latest research on the evolution, behavioral ecology, and conservation of these highly visible and increasingly endangered creatures, much loved by professional herpetologists and hobbyists alike. The book begins with an introduction by noted iguana biologist Dr. Gordon Burghardt that examines the state of iguana research—past, present, and future—with an emphasis on social behavior. Three major sections follow, each opening with a synthesis by the volume editors, who survey the current status and likely future direction of investigations in the pertinent area. The first section focuses on different aspects of the taxonomic and morphological diversity of iguanas and includes a complete checklist of species. In the second section, contributors address the behavior and ecology of iguanas and provide compelling evidence that both may be far more complex than previously appreciated. The third and final section, highlighting the threats facing iguana populations today, describes the broad array of innovative conservation strategies that will be needed to help ensure their survival. Illustrated throughout with photographs, distribution maps, tables, and figures, this volume will be the definitive resource for anyone—professional or curious amateur—interested in iguanas.

Author: Peter M. Kappeler
Publisher: Springer Science & Business Media
ISBN: 9783540283744
Category : Psychology
Languages : en
Pages : 364

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Cooperative behaviour has been one of the enigmas of evolutionary theory. This book examines the many facets of cooperative behaviour in primates and humans. It bridges the gap between parallel research in primatology and studies of humans, and highlights both common principles and aspects of human uniqueness, with respect to cooperative behaviour.

Author: Fred Punzo
Publisher: Springer Science & Business Media
ISBN: 1461557275
Category : Science
Languages : en
Pages : 304

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My initial interest in the Solifugae (camel-spiders) stems from an incident that occurred in the summer of 1986. I was studying the behavioral ecology of spider wasps of the genus Pepsis and their interactions with their large theraphosid (tarantula) spider hosts, in the Chihuahuan Desert near Big Bend National Park, Texas. I was monitoring a particular tarantula burrow one night when I noticed the resident female crawl up into the burrow entrance. Hoping to take some photographs of prey capture, I placed a cricket near the entrance and waited for the spider to pounce. Suddenly, out of the comer of my eye appeared a large, rapidly moving yellowish form which siezed the cricket and quickly ran off with it until it disappeared beneath a nearby mesquite bush. So suddenly and quickly had the sequence of events occurred, that I found myself momentarily startled. With the aid of a headlamp I soon located the intruder, a solifuge, who was already busy at work macerating the insect with its large chelicerae (jaws). When I attempted to nudge it with the edge of my forceps, it quickly moved to another location beneath the bush. When I repeated this maneuver, the solifuge dropped the cricket and lunged at the forceps, gripping them tightly in its jaws, refusing to release them until they were forcefully pulled away.

Author: Vincent Bels
Publisher: CRC Press
ISBN: 0429640722
Category : Nature
Languages : en
Pages : 427

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Book Description
Key features: Presents a contemporary snapshot of the mechanisms underlying the evolution and adaptation of behavior Explores how genetics, epigenetics, development, and environment shape behavior Discusses a broad range of behavioral repertoires and responses, including those related to thermoregulatory, foraging, predatory, displaying, social and escape strategies. Examines physiological and sensory mechanisms Covers the effects of various aspects of global change on behavior, with chapters that focus on the impacts of climate change on hydroregulatory behavior and behavioral responses to the effects of habitat alteration resulting from human-mediated change and colonization by invasive species. Lizards serve as focal organisms for many of biological questions related to evolution, ecology, physiology, and morphology. They are studied at multiple spatial and temporal scales, from the individual to the community level. This book, authored by expert contributors from around the world, explores behaviors underlying the evolution and adaptation of these organisms. It covers conceptual, empirical, and methodological approaches to the understanding of the role that natural and sexual selection play in molding the behavioral traits of lizards. This thorough, illustrated reference should stimulate discussion of the conceptual and methodological approaches for studying the behavioral traits of these fascinating and highly diverse vertebrates.

Author: Stephen J. Divers
Publisher: Elsevier Health Sciences
ISBN: 0323482481
Category : Medical
Languages : en
Pages : 1793

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**Selected for Doody's Core Titles® 2024 in Veterinary Medicine** Known as "the bible" of herpetological medicine and surgery, Mader's Reptile and Amphibian Medicine and Surgery, 3rd Edition edited by Stephen Divers and Scott Stahl provides a complete veterinary reference for reptiles and amphibians, including specific sections on practice management and development; taxonomy, anatomy, physiology, behavior, stress and welfare; captive husbandry and management including nutrition, heating and lighting; infectious diseases and laboratory sciences; clinical techniques and procedures; sedation, anesthesia and analgesia; diagnostic imaging; endoscopy; medicine; surgery; therapy; differential diagnoses by clinical signs; specific disease/condition summaries; population health and public health; and legal topics. Well-organized and concise, this new edition covers just about everything related to reptiles and amphibians by utilizing an international array of contributing authors that were selected based on their recognized specialization and expertise, bringing a truly global perspective to this essential text!