Download or read book Adaptation of Invasive Species to Islands and the Puerto Rican Honey Bee written by Rosanna Giordano and published by Frontiers Media SA. This book was released on 2022-10-07 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Congressional Record written by United States. Congress and published by . This book was released on 1965 with total page 1444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)
Download or read book Assessment of Nontimber Forest Products in the United States Under Changing Conditions written by James L. Chamberlain and published by Forest Service. This book was released on 2018-08-24 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nontimber forest products (NTFPs) are fundamental to the functioning of healthy forests and play vital roles in the cultures and economies of the people of the United States. However, these plants and fungi used for food, medicine, and other purposes have not been fully incorporated into management, policy, and resource valuation. This report is a forest-sectorwide assessment of the state of the knowledge regarding NTFPs science and management information for U.S. forests and rangelands (and hereafter referred to as the NTFP assessment). The NTFP assessment serves as a baseline science synthesis and provides information for managing nontimber forest resources in the United States. In addition, this NTFP assessment provides information for national-level reporting on natural capital and the ecosystem services NTFPs provide. The report also provides technical input to the 2017 National Climate Assessment (NCA) under development by the U.S. Global Change Research Program (USGCRP).
Download or read book XVI International Botanical Congress St Louis USA August 1 7 1999 written by and published by . This book was released on 1999 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Ecosystems written by Richard J. Hobbs and published by John Wiley & Sons. This book was released on 2013-01-07 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land conversion, climate change and species invasions are contributing to the widespread emergence of novel ecosystems, which demand a shift in how we think about traditional approaches to conservation, restoration and environmental management. They are novel because they exist without historical precedents and are self-sustaining. Traditional approaches emphasizing native species and historical continuity are challenged by novel ecosystems that deliver critical ecosystems services or are simply immune to practical restorative efforts. Some fear that, by raising the issue of novel ecosystems, we are simply paving the way for a more laissez-faire attitude to conservation and restoration. Regardless of the range of views and perceptions about novel ecosystems, their existence is becoming ever more obvious and prevalent in today’s rapidly changing world. In this first comprehensive volume to look at the ecological, social, cultural, ethical and policy dimensions of novel ecosystems, the authors argue these altered systems are overdue for careful analysis and that we need to figure out how to intervene in them responsibly. This book brings together researchers from a range of disciplines together with practitioners and policy makers to explore the questions surrounding novel ecosystems. It includes chapters on key concepts and methodologies for deciding when and how to intervene in systems, as well as a rich collection of case studies and perspective pieces. It will be a valuable resource for researchers, managers and policy makers interested in the question of how humanity manages and restores ecosystems in a rapidly changing world. A companion website with additional resources is available at www.wiley.com/go/hobbs/ecosystems
Download or read book Insects of the Luquillo Mountains Puerto Rico written by Juan A. Torres and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biogeography and Taxonomy of Honeybees written by Friedrich Ruttner and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honeybees are as small as flies or as large as hornets, nesting in nar row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground. They occur in tropical zones and in the forests of the Ural mountains, they survive seven months of winter and even longer periods of drought and heat. Historically, they lived through a extended time of stagnation in the tropics from the mid-Tertiary, but then experienced an explosive evolution during the Pleistocene, re sulting in the conquest of huge new territories and the origin of two dozen subspecies in Apis mellifera. This vast geographic and ecologic diversification of the genus Apis was accompanied by a rich morphological variation, less on the level of species than at the lowest rank, the subspecies level. Variation being exclusively of a quantitative kind at this first step of speciation, tradi tional descriptive methods of systematics proved to be unsatisfactory, and honeybee taxonomy finally ended up in a confusing multitude of inadequately described units. Effective methods of morphometric-sta tistical analysis of honeybee popUlations, centered on limited areas, have been developed during the last decades. Only the numerical characterization of the populations, together with the description of behavior, shows the true geographic variability and will end current generalizations and convenient stereotypes.
Download or read book Living in the Environment written by George Tyler Miller and published by . This book was released on 2002 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Florida s Best Herbs and Spices written by Charles R. Boning and published by Pineapple Press Inc. This book was released on 2010 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Florida's best herbs and spices provides profiles of over 90 plants, offering information on cultivation, harvesting and use. Over 180 illustrations and 200 photographs are included, as well as range maps for each species.
Download or read book Africanized Honey Bees in Puerto Rico written by Bert Rivera Marchand and published by . This book was released on 2006 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weeds in a Changing World written by Charles H. Stirton and published by Bcpc Publications. This book was released on 1995 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Handbook of Global Freshwater Invasive Species written by Robert A. Francis and published by Routledge. This book was released on 2012-03-12 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.
Download or read book Attracting Native Pollinators written by The Xerces Society and published by Storey Publishing, LLC. This book was released on 2011-02-28 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the recent decline of the European honey bee, it is more important than ever to encourage the activity of other native pollinators to keep your flowers beautiful and your grains and produce plentiful. In Attracting Native Pollinators, you’ll find ideas for building nesting structures and creating a welcoming habitat for an array of diverse pollinators that includes not only bees, but butterflies, moths, and more. Take action and protect North America’s food supply for the future, while at the same time enjoying a happily bustling landscape.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 2312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The african Honey Bee written by Marla Spivak and published by CRC Press. This book was released on 2019-06-04 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first review of the scientific literature on the Africanized honey bee. The African subspecies Apis mellifera scutellata (formerly adansonii) was introduced into South America in 1956 with the intent of cross-breeding it with other subspecies of bees already present in Brazil to obtain a honey bee better adapted to tropical conditions. Shortly after its introduction, some of the African stock became established in the feral population around Sao Paulo, Brazil, and spread rapidly through Brazil. It has since migrated through most of the neotropics, displacing and/or hybridizing with the previously imported subspecies of honey bees. Africanized bees have been stereotype d as having high rates of swarming and absconding, rapid colony growth, and fierce defensivebehavior. As they have spread through the neotropics they have interacted with the human population, disrupting apiculture and urban activities when high levels of defensive behavior are expressed.
Download or read book Agriculture in the Americas written by and published by . This book was released on 1945 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
