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Phylogeography of California examines the evolution of a variety of taxaÑancient and recent, native and migratoryÑto elucidate evolutionary events both major and minor that shaped the distribution, radiation, and speciation of the biota of California. The book also interprets evolutionary history in a geological context and reviews new and emerging phylogeographic patterns. Focusing on a region that is defined by physical and political boundaries, Kristina A. Schierenbeck provides a phylogeographic survey of CaliforniaÕs diverse flora and fauna according to their major organismal groups. Life history and ecological characteristics, which play prominent roles in the various outcomes for respective clades, are also considered throughout the work. Supporting scholars and researchers who study evolutionary diversification, the book analyzes research that helps assess one of the major challenges in phylogeographic studies: understanding changes in population structures shaped by geological and geographical processes. California is one of only twenty-five acknowledged biological hotspots worldwide, and the phylogeographic history of the state can be extrapolated to study other regions in western North America. Further consideration is given to implications for conservation, recommendations concerning the biogeographic provinces that roughly define the state of California, and predictions related to climate change.
"Ponder and Lindberg provides a breathtaking overview of the evolutionary history of the Mollusca, effectively melding information from anatomy, ecology, genomics, and paleobiology to explore the depths of molluscan phylogeny. Its outstanding success is due to thoughtful planning, focused complementary contributions from 36 expert authors, and careful editing. This volume is a must for malacologists."—Bruce Runnegar, Department of Earth and Space Sciences, University of California, Los Angeles "Our understanding of the phylogeny and evolutionary history of the mollusca has been revolutionized over the past two decades through new molecular data and analysis, and reinvestigation of morphological characters. In this volume Ponder, Lindberg, and their colleagues do a wonderful job of integrating this work to provide new perspectives on the relationships of the major molluscan clades, their evolutionary dynamics, and their history. Particularly timely is the coverage of molluscan evo-devo and genomics."—Douglas H. Erwin, Curator of Paleozoic Invertebrates, National Museum of Natural History
The overarching theme of my thesis is to explore patterns of larval dispersal as they relate to management of fished marine species. I employed a case study of two species: Megastraea undosa and Parastichopus parvimensis to investigate patterns of phylogeography and assess relative scales of dispersal for these two species which are fished in both California, USA and Baja California, MEX. To examine how some generalities for many species can be made for a specific geographic area, I reviewed all existing phylogeographic studies around Cape Mendocino, CA. Dispersal at a snail's pace: Strong genetic structure in the fisheries gastropod Megastaea undosa. Information about larval dispersal is necessary for effective management of fisheries. Population genetics are often employed to assess dispersal, but these data also carry artifacts from the evolutionary history of a species. I assessed historical and modern demography of the wavy top snail, Megastraea undosa, a marine snail that is fished in California, USA and Baja California, Mexico. Genetic structure at the COI mtDNA locus is strikingly high, with large shifts in haplotype frequencies between southern Baja and southern California. Coalescent-based modeling of genetic data suggests that the population has limited dispersal throughout the range and underwent a northward range expansion after the last glacial maximum. I conclude that both historical and contemporary processes affect observed patterns of phylogeography in M. undosa. Consideration of the evolutionary history of target species allows for a more accurate interpretation of genetic data for management. iv Subtle genetic structure in the commercially fished warty sea cucumber, Parastichopus parvimensis. The warty sea cucumber, P. parvimensis, is fished commercially in both California, USA and Baja California, Mexico but little is known about the status of the fisheries or if separate stocks exist. P. parvimensis has a long pelagic larval duration of 50-90 days, which may translate to high connectivity throughout the species range (Monterey, CA, USA to Bahía Asuncion, BCS, Mexico). I examined phylogeographic patterns at the COI mtDNA locus and five microsatellite loci throughout the range of P. parvimensis and was particularly interested in patterns associated with the potential phylogeographic barriers of Point Conception, CA, USA and Punta Eugenia, BCS, MEX. I found no structure associated with Point Conception, but subtle genetic structure at both types of loci for Punta Eugenia, which may be mechanistically explained by oceanographic patterns. These data have important implications for management of the sea cucumber fishery and indicate that populations south of Punta Eugenia likely do not receive biologically meaningful input of larvae from northern populations to supplement the local fishery. Concordant phylogeographic patterns associated with the major headland of Cape Mendocino in northern California. Most coastlines are non-linear and headlands such as Cape Mendocino may interact with oceanographic processes to create barriers to dispersal. Though Cape Mendocino is a prominent headland, it has been largely ignored in the phylogeographic literature, which focuses instead on Point Conception in southern California. I reviewed and synthesized phylogeographic studies that include sampling sites north and south of Cape Mendocino and discuss the v oceanography and topography of the cape as potential mechanistic drivers of larval dispersal patterns. Slightly more than half (24 out of 46) of the surveyed species that showed significant genetic structure around this headland, which suggests that this headland may be an important barrier to dispersal and may limit connectivity between northern and central California. If populations north of Cape Mendocino have higher connectivity with populations in Oregon than with those in central California, marine spatial planning must occur at a multi-state scale to reach marine conservation goals.
This book presents valuable and recent lessons learned regarding the links between natural resources management, from a Socio-Ecological perspective, and the biodiversity conservation in Mexico. It address the political and social aspects, as well as the biological and ecological factors, involved in natural resources management and their impacts on biodiversity conservation. It is a useful resource for researchers and professionals around the globe, but especially those in Latin American countries, which are grappling with the same Bio-Cultural heritage conservation issues.
Marine fishes have been intensively studied, and some of the fundamental ideas in the science of marine ecology have emerged from the body of knowledge derived from this diverse group of organisms. This unique, authoritative, and accessible reference, compiled by 35 luminary ecologists, evolutionary biologists, and ichthyologists, provides a synthesis and interpretation of the large, often daunting, body of information on the ecology of marine fishes. The focus is on the fauna of the eastern Pacific, especially the fishes of the California coast, a group among the most diverse and best studied of all marine ecosystems. A generously illustrated and comprehensive source of information, this volume will also be an important launching pad for future research and will shed new light on the study of marine fish ecology worldwide. The contributors touch on many fields in biology, including physiology, development, genetics, behavior, ecology, and evolution. The book includes sections on the history of research, both published and unpublished data, sections on collecting techniques, and references to important earlier studies.
"A state of the art field guide to the 200+ species of reptile and amphibian found in California"--
California is globally renowned for its biological diversity, including its wealth of unique, or endemic, species. Many reasons have been cited to explain this abundance: the complex geology and topography of its landscape, the special powers of its Mediterranean-type climate, and the historic and modern barriers to the wider dispersal of its flora and fauna. Plant and Animal Endemism in California compiles and synthesizes a wealth of data on this singular subject, providing new and updated lists of native species, comparing patterns and causes of both plant and animal endemism, and interrogating the classic explanations proposed for the state’s special significance in light of new molecular evidence. Susan Harrison also offers a summary of the innovative tools that have been developed and used in California to conserve and protect this stunning and imperiled diversity.
Insects provide excellent model systems for understanding evolutionary ecology. They are abundant, small, and relatively easy to rear, and these traits facilitate both field and laboratory experiments. This book has been developed from the Royal Entomological Society's 22nd international symposium, held in Reading in 2003. Topics include speciation and adaptation; life history, phenotype plasticity and genetics; sexual selection and reproductive biology; insect-plant interactions; insect-natural enemy interactions; and social insects.
Phylogeography is a discipline concerned with various relationships between gene genealogies—phylogenetics—and geography. This book captures the conceptual and empirical richness of the field, and also the sense of genuine innovation that phylogeographic perspectives have brought to evolutionary studies.
In the first bilingual work on the reptiles and amphibians of the US–Mexico border, top herpetologists come together to describe the herpetofauna of the states of this region, which includes more than 600 species of toads, frogs, salamanders, turtles, sea turtles, alligators, lizards, snakes, and sea snakes that are found along the almost 2,000-mile border between the two countries. Each chapter is devoted to one state—four in the US (California, Arizona, New Mexico, and Texas) and six in Mexico (Baja California, Sonora, Chihuahua, Coahuila, Nuevo León, and Tamaulipas)—with text in both English and Spanish. The chapters contain an introduction to the area, a review of the research, a sketch of the state’s physiography, and a description of the species present as well as the pertinent conservation issues they face. A color photo gallery includes images of nearly all species. Almost 40 percent of the featured native species are shared between the US and Mexico, reminding us that animals depend on the integrity of natural landscapes and proving the need for a comprehensive, bilingual reference to help lead a shared effort in the management and conservation of the borderlands.