Download or read book Ecology Abstracts written by and published by . This book was released on 1996 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
Download or read book Reproductive Ecology of Flowering Plants Patterns and Processes written by Rajesh Tandon and published by Springer Nature. This book was released on 2020-08-07 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sexual reproduction is the predominant mode of perpetuation for flowering plant species. Investigating the reproductive strategies of plants has grown to become a vast area of research and, in crop plants, covers events from flowering to fruit and seed development; in wild species, it extends up to seed dispersal and seedling recruitment. Thus, reproduction determines the extent of yield in crop plants and, in wild plants, also determines the efficacy of recruiting new adults to the population, making this field important both from fundamental and applied plant biology perspectives. Moreover, in light of the growing concerns regarding food and nutritional security for the growing population and preserving biological diversity, reproductive biology of flowering plants has acquired special significance. Extensive studies on various facets of reproduction are being carried out around the world. However, these studies are scattered across research journals and reviews from diverse areas of biology. The present volume covers the whole spectrum of reproductive ecology, from phenology and floral biology, to sexuality and pollination biology/ecology including floral rewards, breeding systems, apomixis and seed dispersal. In turn, transgene flow, its biosafety and mitigation approaches, and the ‘global pollinator crisis’, which has become a major international concern in light of the urgent need to sustain crop yield and biodiversity, are discussed in detail. Given its scope, the book offers a valuable resource for students, teachers and researchers of botany, zoology, ecology, agriculture and forestry, as well as conservation biologists.
Download or read book Hotspots Revisited written by Russell A. Mittermeier and published by Conservation International. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the results of the biodiversity hotspots - those discrete, biogeographic regions that are known to hold at least 1,500 plants as endemics and that have lost at least 70% of their primary native vegetation.
Download or read book Pollinators and Pollination written by Jeff Ollerton and published by Pelagic Publishing Ltd. This book was released on 2021-01-18 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique and personal insight into the ecology and evolution of pollinators, their relationships with flowers, and their conservation in a rapidly changing world. The pollination of flowers by insects, birds and other animals is a fundamentally important ecological function that supports both the natural world and human society. Without pollinators to facilitate the sexual reproduction of plants, the world would be a biologically poorer place in which to live, there would be an impact on food security, and human health would suffer. Written by one of the world’s leading pollination ecologists, this book provides an introduction to what pollinators are, how their interactions with flowers have evolved, and the fundamental ecology of these relationships. It explores the pollination of wild and agricultural plants in a variety of habitats and contexts, including urban, rural and agricultural environments. The author also provides practical advice on how individuals and organisations can study, and support, pollinators. As well as covering the natural history of pollinators and flowers, the author discusses their cultural importance, and the ways in which pollinator conservation has been portrayed from a political perspective. The book draws on field work experiences in South America, Africa, Australia, the Canary Islands and the UK. For over 30 years the author has spent his career researching how plants and pollinators evolve relationships, how these interactions function ecologically, their importance for society, and how we can conserve them in a rapidly changing world. This book offers a unique and personal insight into the science of pollinators and pollination, aimed at anyone who is interested in understanding these fascinating and crucial ecological interactions.
Download or read book Indian Science Abstracts written by and published by . This book was released on 2011-07 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Invasions written by Barbara Tokarska-Guzik and published by . This book was released on 2008 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed volume of key presentations from a series of biennial International Conferences on the Ecology and Management of Alien Plant Invasions (EMAPi). This volume aims to contribute to this growing field, exploring human perceptions of plant invasions and the role of humans in the invasion process from different perspectives and geographical areas. It also covers case studies of the biology and ecology of invasive species, mechanisms of invasion and ecological impacts, while offering solutions through a variety of control and management techniques.
Download or read book The Wild Heart of India written by T.R. Shankar Raman and published by Oxford University Press. This book was released on 2019-05-06 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild—untamed, hostile, remote. Yet, wild can be gentle, welcoming, and inspiring, too. This is the wild that preoccupies biologist Shankar Raman as he writes about trees and bamboos, hornbills and elephants, leopards and myriad other species. Species found not just out there in far wildernesses—from the Thar desert to the Kalakad rainforests, from Narcondam Island to Namdapha—but amid us, in gardens and cities, in farms, along roadsides. And he writes about the forces that gouge land and disfigure landscapes, rip trees and shred forests, pollute rivers and contaminate the air, slaughter animals along roads and rail tracks—impelling a motivation to care, and to conserve nature. Through this collection of essays, Shankar Raman attempts to blur, if not dispel, the sharp separation between humans and nature, to lead you to discover that the wild heart of India beats in your chest, too.
Download or read book Forest landscapes of the southern western Ghats India written by Collectif and published by Institut français de Pondichéry. This book was released on 2020-10-07 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Ghats forests are endowed with large species and habitat diversity, which is nowadays under threat by increasing demographic pressure and changing land use. To address these challenges, a novel and comprehensive approach is sought from the principles of landscape ecology. Morpho-pedological features are used to delineate landscape units all over the Western Ghats of Kerala, among which the Western Anamalai region is chosen to elucidate the relative influence of physical factors, bioclimate and anthropogenic pressures on the characteristics of natural vegetation and on the status of the vertebrate fauna. Highlighting patterns of resource utilization by proximal and distant stakeholders, the book goes about identifying value-based management zones, while proposing management strategies for conservation and sustainable development.
Download or read book Plant Reproductive Ecology Patterns and Strategies written by Jon and Lesley Lovett-Doust Professor of Biology the University of Windsor and published by Oxford University Press, USA. This book was released on 1988-07-07 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of reviews by leading investigators examines plant reproduction and sexuality within a framework of evolutionary ecology, providing an up-to-date account of the field. The contributors discuss conceptual issues, showing the importance of sex allocation, sexual selection and inclusive fitness, and the dimensions of paternity and maternity in plants. The evolution, maintenance, and loss of self-incompatibility in plants, the nature of 'sex choice' in plants, and sex dimorphism are all explored in detail. Specific forms of biotic interactions shaping the evolution of plant reproductive strategy are discussed, and a taxonomically based review of the reproductive ecology of non-angiosperm plant groups, such as bryophytes, ferns, and algae, is presented. Together these studies focus on the complexities of plant life cycles and the distinctive reproductive biologies of these organisms, while showing the similarities between nonflowering plants and the more thoroughly documented flowering species.
Download or read book Endemic Vascular Plants of India written by Paramjit Singh and published by . This book was released on 2015 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature of Plant Communities written by J. Bastow Wilson and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of the role of species interactions in the process of plant community assembly.
Download or read book Pollination Biology written by Dharam P. Abrol and published by Springer Science & Business Media. This book was released on 2011-10-05 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has a wider approach not strictly focused on crop production compared to other books that are strictly oriented towards bees, but has a generalist approach to pollination biology. It also highlights relationships between introduced and wild pollinators and consequences of such introductions on communities of wild pollinating insects. The chapters on biochemical basis of plant-pollination interaction, pollination energetics, climate change and pollinators and pollinators as bioindicators of ecosystem functioning provide a base for future insights into pollination biology. The role of honeybees and wild bees on crop pollination, value of bee pollination, planned honeybee pollination, non-bee pollinators, safety of pollinators, pollination in cages, pollination for hybrid seed production, the problem of diseases, genetically modified plants and bees, the role of bees in improving food security and livelihoods, capacity building and awareness for pollinators are also discussed.
Download or read book Causes and Consequences of Species Diversity in Forest Ecosystems written by Aaron M. Ellison and published by MDPI. This book was released on 2019-07-30 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Causes and Consequences of Species Diversity in Forest Ecosystems that was published in Forests
Download or read book The pollination services of forests written by Krishnan, S., Wiederkehr Guerra, G., Bertrand, D., Wertz-Kanounnikoff, S. and Kettle, C.J. and published by Food & Agriculture Org.. This book was released on 2020-06-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most flowering plants, including wild species and many food crops, are pollinated by animals and are vital, therefore, for biological production and the maintenance of biodiversity. Pollinators benefit from diverse natural habitats for forage and nesting, especially when these are limited in plant production systems. Landscape and forest management practices can help ensure the continued availability of pollinators and thereby increase resilience and the productivity of forestry and agriculture. The extent of forests and other natural habitats in a landscape plays a role in determining the species composition of pollinators. Agricultural landscapes adjoining fragmented forests and natural areas benefit from pollinator services, and animal-pollinated crops therefore achieve higher fruit set. Forest management practices can have significant effects on pollinator abundance and diversity. They affect forest variables such as structure, species composition, soil dynamics, hydrology and light availability, all of which can affect pollinator species composition and diversity and plant–pollinator networks. Indigenous and local knowledge can contribute to the conservation of pollinators through traditional management practices. This working paper, which is aimed at forest practitioners, landscape planners and land-use decision-makers, reviews published literature on the impacts of forest and landscape management practices on pollinators. It also addresses the implications of climate change, collates 36 case studies, and makes recommendation on measures for maintaining pollinator diversity and abundance in forests and landscapes
Download or read book Agrindex written by and published by . This book was released on 1992 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The State of the World s Biodiversity for Food and Agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-03-12 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The State of the World's Biodiversity for Food and Agriculture presents the first global assessment of biodiversity for food and agriculture worldwide. Biodiversity for food and agriculture is the diversity of plants, animals and micro-organisms at genetic, species and ecosystem levels, present in and around crop, livestock, forest and aquatic production systems. It is essential to the structure, functions and processes of these systems, to livelihoods and food security, and to the supply of a wide range of ecosystem services. It has been managed or influenced by farmers, livestock keepers, forest dwellers, fish farmers and fisherfolk for hundreds of generations. Prepared through a participatory, country-driven process, the report draws on information from 91 country reports to provide a description of the roles and importance of biodiversity for food and agriculture, the drivers of change affecting it and its current status and trends. It describes the state of efforts to promote the sustainable use and conservation of biodiversity for food and agriculture, including through the development of supporting policies, legal frameworks, institutions and capacities. It concludes with a discussion of needs and challenges in the future management of biodiversity for food and agriculture. The report complements other global assessments prepared under the auspices of the Commission on Genetic Resources for Food and Agriculture, which have focused on the state of genetic resources within particular sectors of food and agriculture.
Download or read book Freshwater Biodiversity written by David Dudgeon and published by Cambridge University Press. This book was released on 2020-05-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.
