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Bamboo Flowering and Rodent Outbreaks by T.P. Rajendran,S. Sridhara Pdf
It is the first ever attempt of consolidating plant ecology and animal response, both of which affect drastically the livelihood of people depending on bamboo. We sincerely hope that the book serves as a beginer s guide to understand the subject and pave way for much detailed investigations. This book is a synthesis of many established facts, theories and hypotheses of plant and animal ecology with which lives of bamboo dependent human population is intricately interwoven.
Bamboo Flowering and Rodent Control by Veena &. Barik Saroj K. Tandon Pdf
The factors that cause flowering in bamboos remain a botanical mystery. Many causes have been attributed to trigger gregarious flowering in bamboo but it has not been possible to establish their consistency. People believe that famine, death and natural disasters are associated events of bamboo flowering. Death of large populations of bamboos spread over large tracts of forest areas in Asia-Pacific region has been a cause of concern owing to the ecological, social and economic crises that set forth following bamboo flowering. During gregarious flowering, large quantities of seeds are produced. Many animals, particularly rodents feed on these nutritious seeds and reproduce fast to increase their population sizes. Once the seeds are exhausted due to germination, the rats/rodents depend on crops in the vicinity, thus causing famine. Considering the technological, scientific, socio-economic and environmental consequences of bamboo flowering and associated growth of rodent populations, the menace of bamboo flowering remains as a challenge. The book Bamboo flowering and rodent control includes 12 papers representing different dimensions of the subject authored by well-known Indian and Taiwan scientists, is an attempt to address this scientific challenge.
A Handbook on Surveillance, Prevention and Control of Plague (Including Rodent and Flea Control) by Shyamal Biswas Pdf
Plague, most ancient, dreadful and formidable pestilential rodent borne disease was a major public health problem in India till the mid twentieth century A.D. Plague is one of the three epidemic prone diseases still subject to the International Health Regulations and notifiable to the World Health Organization (WHO). In India mortality due to plague reached zero level during 1967. However, sporadic cases of suspected human plague were reported from Himachal Pradesh during 1966 and 1983-1984 and Karnataka during 1984 and at times localized sylvatic plague incidence encountered in the last decade from the trijunction of Karnataka, Andhra Pradesh and Tamil Nadu in peninsular India. During 1994 a bubonic plague outbreak at Beed district, Maharashtra and pneumonic plague outbreak in Surat, Gujarat were recorded. After 8 long years of quiescence a localized outbreak of pneumonic plague occurred in Himachal Pradesh in 2002. In 2004, a bubonic plague outbreak occurred in Uttarkashi district, Uttarakhand. Scientists were in general opinion about the role of rodents and fleas in global transmission of plague, and the main means of dissemination carried by infected rats through the international trade routes. Rodents are the carriers of viral, rickettsial, nematode and bacterial diseases and are responsible for the transmission of more than 35 communicable diseases including Hanta viruses. In indirect transmission of diseases, rodents may serve as intermediate hosts for parasites that ultimately infect man and may serve as reservoirs of disease agents which may be picked up by arthropod vectors like fleas, ticks or mites and transmitted to humans through bites. In direct transmission, rodents may transmit the viruses by inhalation of aerosolized excreta, ingestion of excreta or by direct contact with the rodent itself and may directly transmit a pathogen to man through bite. Plague continues to exist as a major public health problem in many countries of the world. In several countries plague has remained quiescent for years together before reappearing all of a sudden. The enzootic foci of plague in India is believed to be present in four groups of foci in northern, central, western and southern India. From 1989 to 1994 active zoonotic foci of plague were detected from the trijunction of Tamil Nadu (Krishnagiri district), Andhra Pradesh (Chittoor district) and Karnataka (Kolar and Bangalore rural district). As the sylvatic rodents live in wild and peri-domestic situations and maintain the natural transmission in enzootic foci for centuries together, eradication of the disease is highly impossible. Natural decline in plague incidence would not justify the conclusion that plague has disappeared from the area. Plague is a re-emerging zoonotic disease. The number of human plague cases reported to W.H.O. by different countries was always lower than the actual number of cases. Under reporting may be attributed to lack of diagnostic facilities for the confirmation of the cases and cessation of plague surveillance work by number of erstwhile plague endemic countries. The worldwide decline in plague incidence since the 1950s resulted in decreased financial support, lesser interest, and ultimately the deterioration of laboratory-based surveillance systems in many endemic countries in the world. The lack of continuous baseline data on plague surveillance may result in an undetected sudden increase of bubonic/pneumonic cases in an enzootic/endemic foci of the world, or re-emerging of the disease. Since the beginning of the 1990s, the number of plague cases shows rising trend worldwide, and outbreaks are reappearing in various countries of the world after decades of quiescence. Plague can re-emerge, vaccination is useless and mass killing of rodents is not the solution for the eradication of the disease. According to the World Health Organization (WHO), global incidence of human plague was the lowest reported in 30 years, and the actual incidence was probably little different. However, we should be extremely vigilant as it is not uncommon to observe the long years of quiescence in natural plague foci, and the sudden appearance of human cases is always destabilizing for national or even international authorities. A plague outbreak may also cause widespread panic, as occurred in India in 1994 when a relatively small outbreak, with 54 deaths, was reported in the city of Surat. This led to a nationwide collapse in tourism and trade, with an estimated cost of US$600 million. Despite major advances in diagnosis, treatment, and prevention, it has not been possible to eradicate plague. Due to the high public health significance and the risk of its re-emergence after long years of quiescence, plague should not be relegated to the sidelines. It remains a poorly understood threat that we cannot afford to ignore. Potential new foci should be confirmed and investigated, with special attention to harbours with international trade.
The objective of this multi-authored compendium is, therefore, to bring together the state of arts reported in one place. Written by specialists by specialists in various fields of rondentology, and to suggest future lines of research. It is also felt that this work on rodent pest management will trigger more research effort for the benefit of mankind and help certain countries and organizations in revitalizing serious work in this field which, it appears, has dampened during the last few years.
Integrated Pest Management: Current Concepts and Ecological Perspective presents an overview of alternative measures to traditional pest management practices using biological control and biotechnology. The removal of some highly effective broad-spectrum chemicals, caused by concerns over environmental health and public safety, has resulted in the development of alternative, reduced risk crop protection products. These products, less toxic to the environment and easily integrated into biological control systems, target specific life stages or pest species. Predation — recognized as a suitable, long-term strategy — effectively suppresses pests in biotechnological control systems. Integrated Pest Management covers these topics and more. It explores the current ecological approaches in alternative solutions, such as biological control agents, parasites and predators, pathogenic microorganisms, pheromones and natural products as well as ecological approaches for managing invasive pests, rats, suppression of weeds, safety of pollinators, role of taxonomy and remote sensing in IPM and future projections of IPM. This book is a useful resource to entomologists, agronomists, horticulturists, and environmental scientists. Fills a gap in the literature by providing critical analysis of different management strategies that have a bearing on agriculture, sustainability and environmental protection Synthesizes research and practice on integrated pest management Emphasizes an overview of management strategies, with critical evaluation of each in the larger context of ecologically based pest management
This book comprehensively compiles information on some of the major pests that afflict agricultural, horticultural and medicinal crops in particular as well as many polyphagous pests. Not only does this book deal with the pests of common globally produced crops it also addresses those of rarely dealt with crops such as seed spices, medicinal and aromatic plants. While the perspective of insect pests is largely Indian and South East Asian in context, the book does deal with globally problematic pests, particularly polyphagous ones. Not only will the readers be acquainted with the pests, their damaging potential and their life cycle but also with the latest methods of managements including ecofriendly measures being employed to keep pest populations at manageable levels. The 27 chapters in the book, are grouped into four sections primarily based on crop types, viz. pest of agricultural, horticultural and medicinal crops, and polyphagous pests, making the book easy to navigate. Each of the chapters is comprehensive and well illustrated and written by academicians who have dedicated their entire lives to the study of a particular crop-pest complex. The final chapter of this book provides an overview on the principles and processes of pest management.
Author : Douglas A. Kelt Publisher : Univ of California Press Page : 1000 pages File Size : 53,8 Mb Release : 2007-07-31 Category : Nature ISBN : 0520098595
The Quintessential Naturalist by Douglas A. Kelt Pdf
Oliver P. Pearson’s studies on mammalian biology remain standard reading for ecologists, physiologists, taxonomists, and biogeographers. Reflecting this, the papers gathered here continue to expand our understanding of the ecology and evolution of subterranean mammals, and of ecology, taxonomy, and biogeography of Neotropical mammals, a group that was central to the latter half of Pearson’s career.
Author : Grant R. Singleton,David A. Petch Publisher : Australian Centre for International Agricultural Research Page : 76 pages File Size : 49,5 Mb Release : 1994 Category : Agricultural pests ISBN : CORNELL:31924073220166
The Quest for Modern Assam: A History by Arupjyoti Saikia Pdf
'A model work of historical scholarship'-Ramachandra Guha 'The most well-researched, comprehensive history of contemporary Assam ever written'-Partha Chatterjee The crucial battles of World War II fought in India's north-east-followed soon after by Independence and Partition-had a critical impact on the making of modern Assam. In the three decades following 1947, the state of Assam underwent massive political turmoil, geographical instability, and social and demographic upheaval, among others. Later, the truncated state suffered widespread unrest as various groups believed their cultural identity and political leverage were under threat. New social energies and political forces were unleashed and came to the fore. Definitive, comprehensive and unputdownable, The Quest for Modern Assam explores the interconnected layers of political, environmental, economic and cultural processes that shaped the development of Assam since the 1940s. It offers an authoritative account that sets new standards in the writing of regional political history. Not to be missed by any one keen on Assam, India, Asia or world history in the twentieth century.
Global Change, Clonal Growth, and Biological Invasions by Plants by Fei-Hai Yu,Sergio R. Roiloa,Peter Alpert Pdf
There are few more active frontiers in plant science than helping understand and predict the ecological consequences of on-going, global changes in climate, land use and cover, nutrient cycling, and acidity. This collection of research papers and reviews focuses on how these changes are likely to interact with two important factors, clonal growth in plants and the introduction of species into new regions by humans, to reshape the ecology of our world. Clonal growth is vegetative reproduction in which offspring remain attached to the parent at least until establishment. Clonal growth is associated with the invasiveness of introduced species, their tendency to spread after introduction and negatively affect other species. Will changes in climate, land cover, or nutrients further increase biological invasions by introduced, clonal plants? The articles in this book seek to address this question with new research and theory on clonal growth and its interactions with invasiveness and other components of global change.
Author : Alan P Buckle,Robert H Smith Publisher : CABI Page : 432 pages File Size : 44,8 Mb Release : 2015-05-11 Category : Medical ISBN : 9781845938178
Rodent Pests and Their Control, 2nd Edition by Alan P Buckle,Robert H Smith Pdf
The most numerous of the world's invasive species, rodent pests have a devastating impact on agriculture, food, health and the environment. In the last two decades, the science and practice of rodent control has faced new legislation on rodenticides, the pests' increasing resistance to chemical control and the impact on non-target species, bringing a new dimension to this updated 2nd edition and making essential reading for all those involved in rodent pest control, including researchers, conservationists, practitioners and public health specialists.