The history of biology is populated by numerous model species or organisms. But few vertebrate groups have aided evolutionary and ecological research more than the live-bearing fishes of the family Poeciliidae. Found throughout tropical and subtropical waters, poeciliids exhibit a fascinating variety of reproductive specializations, including viviparity, matrotrophy, unisexual reproduction, and alternative mating strategies, making them ideal models for research on patterns and processes in ecology, behavior, and evolution.
Ecology and Evolution of Poeciliid Fishes is a much-needed overview of the scientific potential and understanding of these live-bearing fishes. Chapters by leading researchers take up a wide range of topics, including the evolution of unisexual reproduction, life in extreme environments, life-history evolution, and genetics. Designed to provide a single and highly approachable reference, Ecology and Evolution of Poeciliid Fishes will appeal to students and specialists interested in all aspects of evolutionary ecology.
What this intriguing—and unsettling—apex predator reveals about Americans’ attempts to control and connect with the natural world.
Both a flesh-and-blood critter and the stuff of legend, the alligator inspires as much awe as it does fear. While this apex predator survives mainly on fish, birds, snakes, turtles, and small mammals, it will consume almost anything, including pets, livestock, and—in rare cases—humans. Though dreaded as a man-eater, the alligator has also been cast as a lucrative commodity, a popular roadside attraction, a prized hunting trophy, and even an unlikely household pet.
Gator! tells the riveting story of this iconic predator. Historian Mark V. Barrow, Jr.—a native of Florida, a state famous for its alligators—traces the reptile’s ancient lineage from the age of the dinosaurs to its current status as a cherished mascot and regional icon. He explores its role as a surrogate species, offering vital clues about the health of ecosystems, as well as its profound cultural weight as a totem for Indigenous communities, a mythical sewer-dweller in New York lore, and a disturbing tool of racial oppression used to dehumanize African Americans. Once over-hunted, the alligator has long been celebrated as a triumph of the federal Endangered Species Act. Barrow delves into the nuances of this comeback, one that offers both a cautionary tale of market-driven exploitation and a conservation success story.
An entertaining history of one of North America’s most charismatic animals, Gator! explores how this reptile became a Florida emblem and a national enigma, transforming humans and alligators in the process.
Sea turtles are flagship species for the world's oceans. They traverse international boundaries during their migrations, serve as vehicles for marine nutrients to terrestrial habitats, and embody the often tenuous relationship between human action and ecosystem health. The East Pacific Ocean is home to some of the most dynamic marine ecosystems, and the most unique sea turtles. Marine biodiversity within this massive ocean region abounds in mangrove estuaries, seagrass pastures, coral reefs, the open ocean, and many other habitats, with sea turtles often the most conspicuous species present. The distinctive traits of the Eastern Pacific have resulted in the smallest leatherbacks, a singular morph of the green turtle, dark and steeply domed olive ridleys, and the most cryptic hawksbills on the planet. Only now are we beginning to understand how these varieties have evolved.
However, the oceanographic conditions that make this an epicenter of sea turtle activity also promote massive artisanal and industrial fishing efforts that, coupled with illegal harvesting of eggs and turtles, have led to declines of several turtle populations in the region. The essays and stories in Sea Turtles of the Eastern Pacific describe for the first time the history of this exploitation, as well as recent sea turtle conservation initiatives and scientific research in the region. The first third of the book considers the biology of the turtles, focusing on general overviews of current ecological management challenges facing the turtles' survival. The second third treats issues of marine policy related to turtle conservation. In conclusion, the book offers six compelling stories of conservation success. By the end, readers will have gained a in-depth view not only of these magnificent creatures, but also the people involved in research and conservation efforts in one of the most remarkable regions of our planet.
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