Download or read book The Family Orchidaceae in the Serra do Japi S o Paulo state Brazil written by Emerson Ricardo Pansarin and published by Springer Science & Business Media. This book was released on 2011-03-15 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a floristic survey of orchid species occurring in the Serra do Japi in São Paulo, southeastern Brazil. The region studied is strategically placed in the transitional zone between interior semi-deciduous mesophytic forests and the Atlantic forest, presenting species from both formations and is characterized by semi-deciduous mesophytic forests, altitudinal forests and rocky outcrops. In the Serra do Japi the orchid family is represented by 125 species distributed among 61 genera. The most representative genus is Epidendrum, followed by Oncidium and Habenaria. Most of the species occur as epiphytes, while 40 species are terrestrial, 31 species are rupicolous, two are hemi-epiphytes and only one is myco-heterotrophic. Although the orchid diversity is high, the region has been affected by anthropogenic disturbances, making the preservation and integrated study of the diversity present in the Serra do Japi an urgent necessity, with social, economic and preservationist aspects.
Download or read book Field Guide to the Orchids of the Serra de S o Jos written by Ruy J. Válka Alves and published by . This book was released on 1991 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Conservation of Mountaintop grasslands in Brazil written by Geraldo Wilson Fernandes and published by Springer. This book was released on 2016-04-20 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a pioneer attempt to bring forward the first synthesis on the most diverse and threatened mountain top vegetation of South America, the rupestrian grasslands. It brings to light the state of the art information on this ecosystem geology, soil formation and distribution, environmental filters that lead to biodiversity, species interactions and their fine tuned adaptations to survive the harsh mountain environment. The human dimensions of the rupestrian grassland are also addressed, including the anthropogenic threats that may irreversibly impact biodiversity and ecosystem services. The book also highlights the ongoing studies on ecological restoration and first attempt to model the impacts of climate change on its speciose biota.
Download or read book Nectaries and Nectar written by Susan W. Nicolson and published by Springer Science & Business Media. This book was released on 2007-04-18 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nectar is the most important reward offered by plants to pollinating animals. This book is a modern and interdisciplinary text on nectar and nectaries, prompted by the expansion of knowledge in ecological and molecular fields, and the strong recent interest in pollination biology. The topics covered vary widely: they include historical aspects, the structure and ultrastructure of nectaries and relationships to plant systematics, the dynamics of nectar secretion, nectar chemistry and the molecular biology of defence proteins, and more.
Download or read book Conservation Biology of Lycaenidae butterflies written by T. R. New and published by IUCN. This book was released on 1993 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pharmacological Properties of Native Plants from Argentina written by María Alejandra Alvarez and published by Springer Nature. This book was released on 2019-09-06 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to offer information about the Pharmacological Properties of Native Plants from Argentina to students, researchers and graduates interested in the fields of Ethnobotany, Pharmacognosy, Phytochemistry, Pharmacy, and Medicine. The book includes summary information about the native plants from Argentina with medical activity comprising their botanical characteristics, distribution, characteristics of the regions where they grow, ethnobotanical information, chemical data, biological activity, establishment of in vitro cultures, toxicity, and legal status.
Download or read book Orchid Flowers Their Pollination and Evolution written by Leendert Pijl and published by University of Miami Press. This book was released on 1966 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orchidaceae.
Download or read book Landscape Boundaries written by Andrew J. Hansen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of landscape ecology during the 1980s represents an impor tant maturation of ecological theory. Once enamored with the conceptual beauty of well-balanced, homogeneous ecosystems, ecologists now assert that much of the essence of ecological systems lies in their lumpiness. Patches with differing properties and behaviors lie strewn across the land scape, products of the complex interactions of climate, disturbance, and biotic processes. It is the collective behavior of this patchwork of eco systems that drives pattern and process of the landscape. is not an end point This realization of the importance of patch dynamics in itself, however. Rather, it is a passage to a new conceptual framework, the internal workings of which remain obscure. The next tier of questions includes: What are the fundamental pieces that compose a landscape? How are these pieces bounded? To what extent do these boundaries influence communication and interaction among patches of the landscape? Will con sideration of the interactions among landscape elements help us to under stand the workings of landscapes? At the core of these questions lies the notion of the ecotone, a term with a lineage that even predates ecosystem. Late in the nineteenth century, F. E. Clements realized that the transition zones between plant communi ties had properties distinct from either of the adjacent communities. Not until the emergence of patch dynamics theory, however, has central signif icance of the ecotone concept become apparent.
Download or read book The Orchids written by Robert L. Dressler and published by . This book was released on 1990 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Looks at the structure, classification, evolution, and ecology of orchids, including the methods they have developed to manipulate pollinating insects
Download or read book Natural Hybridization and Evolution written by Michael L. Arnold and published by Oxford University Press. This book was released on 1997-01-30 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Michael L. Arnold offers an exploration of the evolutionary process of natural hybridisation, and presents data from various sources that support the paradigm of natural hybridisation as an important evolutionary process.
Download or read book Biology of Floral Scent written by Natalia Dudareva and published by CRC Press. This book was released on 2006-03-27 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with nearly all living creatures, humans have always been attracted and intrigued by floral scents. Yet, while we have been manufacturing perfumes for at least 5000 years to serve a myriad of religious, sexual, and medicinal purposes, until very recently, the limitation of our olfactory faculty has greatly hindered our capacity to clearly and ob
Download or read book Population Genetics for Animal Conservation written by Giorgio Bertorelle and published by Cambridge University Press. This book was released on 2009-05-28 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrates the power and utility of the synergy between population genetics and conservation biology in animal conservation.
Download or read book New Perspectives on the Biology of Nectaries and Nectars written by Clay Carter and published by Frontiers Media SA. This book was released on 2019-08-27 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of currently known, described and accepted plant species is ca 374,000, of which approximately 295,00 (79%) are angiosperms. Almost 90% of this huge number of flowering plants is pollinated by animals (mostly insects) via nectar-mediated interactions. Notably, three-fourths of the leading global crop plants produce nectar and are animal pollinated, which is estimated to account for one-third of human food resources. Nectar can also be produced on tissues outside of flowers, by so-called extrafloral nectaries, and commonly mediate interactions with ‘body-guard’ ants and other pugnacious insects that defend the plant from herbivores. Extrafloral nectar is present in almost 4,000 plant species, a majority of them in the angiosperms. This brief summary on the occurrence of nectar in the plant kingdom is just to highlight that nectar has a fundamental role in two basal functions that allow the maintenance of our ecosystems: sexual plant reproduction and protection of plants from herbivory. Despite playing essential ecological and evolutionary functions, our current knowledge about nectar is largely incomplete; however, new research directions and perspectives on nectaries and nectars have arisen in recent years. In the last two decades, there were only a few ‘moments’ in which nectar was the main character in international meetings or in published books. In 2002, the first (and only) international meeting “Nectar and nectary: from biology to biotechnology” dedicated exclusively to nectar and nectaries was held in Italy (Montalcino, Siena) and in 2003 the proceedings were published in a special volume of Plant Systematics and Evolution (238, issue 1-4). In 2007, the book Nectar and Nectaries was published (Springer) with most of the contributions provided by authors that attended the meeting in Italy. Another book dedicated to nectar was published in 2015 (Nectar: Production, Chemical Composition and Benefits to Animals and Plants, Nova Science Publishers) covering aspects mainly related to nectar chemical composition and plant-pollinator interactions. Similarly, symposia focused on nectar have been organized within the International Botanical Congress in 2011 and 2017. Considering that the last few years has yielded essential developments in the understanding of nectar biology, we thought now is the moment to further stimulate research on this important topic. This aim has been met through 18 papers published in our Research Topic New Perspectives on the Biology of Nectaries and Nectars, with subjects spanning evolution and ecology to nectar chemistry and nectary structure.
Download or read book Handbook of Vanilla Science and Technology written by Daphna Havkin-Frenkel and published by John Wiley & Sons. This book was released on 2018-09-24 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated guide to the production, science, and uses of vanilla Vanilla is a flavor and fragrance in foods, cosmetics, pharmaceuticals, and a wealth of other products. Now in its second edition, the Handbook of Vanilla Science and Technology provides a comprehensive and updated review of the science and technology used in these items’ production and supply. Featuring contributions from an international range of experts, this revised edition covers a multitude of topics, including agricultural production, global markets, analytical methods, sensory analysis, food and fragrance applications, organic farming and fair trade, botanical diseases, and novel uses. The Handbook of Vanilla Science and Technology, Second Edition is a vital resource for producers, distributors, and scientists involved in vanilla’s growth and utilization, and offers readers: A guide to the cultivation, extraction, analysis, DNA sequencing, and marketing of vanilla Information on the production of vanilla in a range of countries such as Mexico, Australia, Costa Rica, and India Guidelines on the quality control of vanilla beans and extracts Information on fair trade and the future of vanilla
Download or read book Phylogeny and Classification of the Orchid Family written by Robert L. Dressler and published by Cambridge University Press. This book was released on 1993-04-29 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable contribution to the on-going discussions on evolution within the Orchid family. Dressler's work delimits several major natural groups and emphasises areas needing further study.
Download or read book Seasonally Dry Tropical Forests written by Rodolfo Dirzo and published by Island Press. This book was released on 2012-09-26 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Though seasonally dry tropical forests are equally as important to global biodiversity as tropical rainforests, and are one of the most representative and highly endangered ecosystems in Latin America, knowledge about them remains limited because of the relative paucity of attention paid to them by scientists and researchers and a lack of published information on the subject. Seasonally Dry Tropical Forests seeks to address this shortcoming by bringing together a range of experts in diverse fields including biology, ecology, biogeography, and biogeochemistry, to review, synthesize, and explain the current state of our collective knowledge on the ecology and conservation of seasonally dry tropical forests. The book offers a synthetic and cross-disciplinary review of recent work with an expansive scope, including sections on distribution, diversity, ecosystem function, and human impacts. Throughout, contributors emphasize conservation issues, particularly emerging threats and promising solutions, with key chapters on climate change, fragmentation, restoration, ecosystem services, and sustainable use. Seasonally dry tropical forests are extremely rich in biodiversity, and are seriously threatened. They represent scientific terrain that is poorly explored, and there is an urgent need for increased understanding of the system's basic ecology. Seasonally Dry Tropical Forests represents an important step in bringing together the most current scientific information about this vital ecosystem and disseminating it to the scientific and conservation communities.
Download or read book Phenological Research written by Irene L. Hudson and published by Springer Science & Business Media. This book was released on 2009-11-24 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: As climate change continues to dominate the international environmental agenda, phenology – the study of the timing of recurring biological events – has received increasing research attention, leading to an emerging consensus that phenology can be viewed as an ‘early warning system’ for climate change impact. A multidisciplinary science involving many branches of ecology, geography and remote sensing, phenology to date has lacked a coherent methodological text. This new synthesis, including contributions from many of the world’s leading phenologists, therefore fills a critical gap in the current biological literature. Providing critiques of current methods, as well as detailing novel and emerging methodologies, the book, with its extensive suite of references, provides readers with an understanding of both the theoretical basis and the potential applications required to adopt and adapt new analytical and design methods. An invaluable source book for researchers and students in ecology and climate change science, the book also provides a useful reference for practitioners in a range of sectors, including human health, fisheries, forestry, agriculture and natural resource management.
