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Birds and Marshes of the Chesapeake Bay Country by Brooke Meanley Pdf
A remarkably diverse population of bird life, migratory and indigenous, lives in the region known as the Chesapeake Bay country. It is one of the finest locations on the eastern seaboard for observing wild birds. Among the cattail and wild rice, the cordgrass and loblolly, from the countryside north of Baltimore to the windswept beaches of the Atlantic, are the imperiled canvasback, the boat-tailed grackle, the secretive king rail, the fragile egret, and the evasive snowy owl. Illustrated with photographs and line drawings, this book is indispensable to bird watchers and conservationists in the Chesapeake Bay region.
Birds of Maryland, Delaware, and the District of Columbia by Bruce M. Beehler Pdf
Marvel at the majesty of Ospreys, navigate the ocean with storm-petrels, and nest with Mourning Doves, all while learning about the richness of the birds' lives, the complexities of their habits, and how we can help keep their populations vibrant and aloft for generations to come.
Shifting Baselines in the Chesapeake Bay by Victor S. Kennedy Pdf
This environmental history of America’s largest estuary provides insight into how and why its former productivity and abundant fisheries have declined. The concept of “shifting baselines”—changes in historical reference points used in environmental assessments—illuminates a foundational challenge when evaluating the health of ecosystems and seeking to restore degraded wildlife populations. In this important book, Victor S. Kennedy examines the problem of shifting baselines for one of the most productive aquatic resources in the world: the Chesapeake Bay. Kennedy explains that since the 1800s, when the Bay area was celebrated for its aquatic bounty, harvest baselines have shifted downward precipitously. Over the centuries, fishers and hunters, supported by an extensive infrastructure of boats, gear, and processing facilities, overexploited the region’s fish, crustaceans, terrapin, and waterfowl, squandering a profound resource. Beginning with the colonial period and continuing through the twentieth century, Kennedy gathers an unparalleled collection of scientific resources and eyewitness reports by colonists, fishers, managers, scientists, and newspaper reporters to create a comprehensive examination of the Chesapeake’s environmental history. Focusing on the relative productivity and health of its fisheries and wildlife and highlighting key species such as shad, oysters, and blue crab, Shifting Baselines in the Chesapeake Bay helps readers understand the remarkable extent of the Bay’s natural resources in the past so that we can begin to understand what has changed since, and why. Such knowledge can help illustrate the Bay’s potential fertility and stimulate efforts to restore this pivotal maritime system’s ecological health and productivity.
Chesapeake Bay Explorer's Guide by Dr. David Malmquist Pdf
Known for its beauty and bounty, the Chesapeake Bay stretches nearly 200 miles from the mouth of the Susquehanna River to the ocean capes of the Atlantic, its tidal waters enriching the vibrant coastal communities of both Maryland and Virginia. Chesapeake Bay Explorer’s Guide is the perfect reference for visitors who want to know more about the things they see in their visit to the famous estuary, whether they are relaxing on a beach, paddling through a saltmarsh, or watching workboats duck beneath a drawbridge. Explore more than 14,415 miles of shoreline, myriad hiking trails, and scores of wildlife preserves nestled between resort towns and other attractions. This guide provides a concise history of how the Bay was formed, and brief entries with full-color images and easy-to-read descriptions of the flora, fauna, and man-made artifacts found in and around the Bay.
The Ecology of Tidal Freshwater Marshes of the United States East Coast by William E. Odum Pdf
This report is part of a series of community profiles produced by the Fish and Wildlife Service to provide up-to-date information on coastal ecological communities of the tidal freshwater marsh community along the Atlantic coast from southern New England to northern Florida. Tidal freshwater marshes occupy the uppermost portion of the estuary between the oligohaline or low salinity zone and nontidal freshwater wetlands. By combining the physical process of tidal flushing with the biota of the freshwater marsh, a dynamic, diverse, and distinct estuarine community has been created. The profile covers all structural and functional aspects of the community: its geology, hydrology, biotic components, and energy, nutrient and biomass cycling.
A naturalist captures an intimate photographic study of the marsh habitat and its unique flora and fauna in an exploration of marshes throughout North America and in all seasons of the year.
The Ecology of a Salt Marsh by L. R. Pomeroy,R. G. Wiegert Pdf
Ecologists have two long-standing ways to study large ecosystems such as lakes, forests, and salt-marsh estuaries. In the first, which G. E. Hutchinson has called the holological approach, the whole ecosystem is first studied as a "black box," and its components are investigated as needed. In the second, which Hutchinson has called the merological approach, the parts of the system are studied first, and an attempt is then made to build up the whole from them. For long-term studies, the holological approach has special advantages, since the general patterns and tentative hypotheses that are first worked out help direct attention to the components of the system which need to be studied in greater detail. In this approach, teams of investigators focus on major func tions and hypotheses and thereby coordinate their independent study efforts. Thus, although there have been waves, as it were, of investigators and graduate students working on different aspects of the Georgia salt-marsh estuaries (personnel at the Marine Institute on Sapelo Island changes every few years), the emphasis on the holo logical approach has resulted in a highly differentiated and well-coordinated long-term study. Very briefly, the history of the salt-marsh studies can be outlined as follows. First, the general patterns of food chains and other energy flows in the marshes and creeks were worked out, and the nature of imports and exports to and from the system and its subsystems were delimited.
Among birds, shorebirds provide some of the more unique opportunities to examine basic problems in behavior, ecology, and evolution. This is in large measure due to the diversity, both behaviorally and ecologically, of a group closely related taxonomically and distributed throughout the world. The overall aim of these two volumes is to provide a representative selection of current research being conducted on shorebird behavior and ecology. Traditionally, marine birds have included those species that breed in large colonies on offshore islands along coasts (see Volume 4 of this series). Although shorebirds have generally not been considered within this group, the fact that almost 40% of the species breed along coasts and more than 60% often or always spend the nonbreeding season in coastal habitats more than justifies their inclusion as marine birds (at least those species that totally or partially depend upon the marine environment). Their inclusion markedly increases species diversity in marine birds since shorebirds add about 217 species to the 280 that are traditionally thought of as marine.
Author : Paul A. Shackel,Paul R. Mullins,Mark S. Warner Publisher : Univ. of Tennessee Press Page : 414 pages File Size : 44,8 Mb Release : 1998 Category : History ISBN : 0870499963
Annapolis Pasts by Paul A. Shackel,Paul R. Mullins,Mark S. Warner Pdf
The Archaeology in Annapolis project has been one of the most important undertaken by historical archaeologists. Notable for its emphasis on public education and its use of citywide research, it has carried out an innovative analysis of material culture to show how a wide range of social and economic classes residing in Maryland's capital responded over time to a changing world.Annapolis Pasts offers a close look at the trend-setting project. Drawing on more than a decade of study, it provides a cross-section of the substantive and theoretical issues that Archaeology in Annapolis has explored. The volume gathers the work of some of the most innovative authorities in historical archaeology along with that of younger scholars who participated in the project, all of whom demonstrate the cutting-edge approaches that have won it wide respect. And despite differences in theoretical orientations, all the contributors have used Annapolis's archaeological data to interpret the emergence of capitalism as both a dynamic market force and an equally dynamic body of social rules. In studies of sites ranging from eighteenth-century formal gardens to nineteenth- and twentieth-century African American neighborhoods, the book explores the development of modern society as reflected in such examples of material culture as food, printer's type, tableware, and landscape architecture, showing how these features of everyday life were used to reproduce, modify, and resist capitalist society over three centuries. It also investigates subordinated groups in Annapolis -- African Americans, women, the working class -- to provide insight into racism, class structure, and consumer society in the early years of theindustrial revolution.Annapolis Pasts clearly demonstrates that traditional objects of study like Georgian mansions and colonial crafts cannot be understood without considering their complete social and economic milieu. It presents a fascinating mosaic of human activity that shows how archaeologists can interpret the different social, temporal, and theoretical pieces of a city's history, and it provides anthropologists, economists, and historians with an example of the multifaceted effects of capitalism and industrialization in one corner of America.
Fascinating profiles of flora and fauna celebrate the richness and complexity of a unique ecosystem, exploring the entire ecology of this dynamic and delicate area.