Regulation of Seed Consumption in the Obligate Pollination [microform] : Seed Predation Mutualism Between a Yucca and a Yucca Moth PDF Download
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Author: Judith Miriam Shapiro
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN:
Category : Mutualism (Biology)
Languages : en
Pages : 228
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Book Description
![Regulation of Seed Consumption in the Obligate Pollination [microform] : Seed Predation Mutualism Between a Yucca and a Yucca Moth PDF](https://books.google.com/books/content/images/frontcover/NszdSgAACAAJ?fife=w80-h100)
Author: Judith Miriam Shapiro
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN:
Category : Mutualism (Biology)
Languages : en
Pages : 228
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Book Description
Author: Albert Dang
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Organisms do not exist in complete isolation, they all interact with one another. These interactions can come from predators, parasites, competitors, and even mutualists. Here I test the hypothesis that pollination behaviors thought to expend more energy, may in fact be beneficial to the pollinator in terms of provisioning more resources for their progeny, as well as host plant. My study system is the obligate mutualism between two species of Joshua tree (Yucca brevifolia and Yucca jaegeriana) and their associated moth pollinators (Tegeticula synthetica and Tegeticula antithetica). I reconstructed sibships among pollinator larvae using DNA barcoding and microsatellite genotyping to infer instances in which female yucca moths had likely cross pollinated. I show that fruit seed and larvae totals were not significantly different between fruits that were a result of cross pollination and those that were not. I used regression modeling to see if the number of pollinator larvae influenced the number of seeds after accounting for climate variables. Here I saw a significant negative impact on seed totals, but also a strong effect from co-occurring seed predators. Other factors are likely to play a role in pollinators' return on investments which were unable to be incorporated for this study. These results are consistent with other studies demonstrating that moth interests are not in alignment with their host plant.
Author: Emily (E. T.) Thornquist
Publisher:
ISBN:
Category :
Languages : en
Pages : 42
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Book Description
Author: Kishan Gopal Ramawat
Publisher: Springer Science & Business Media
ISBN: 3642025501
Category : Science
Languages : en
Pages : 508
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Book Description
Deserts appear very fascinating during our short visits. However, the lives of plants and animals are very dif?cult under the harsh climatic conditions of high tempe- ture and scant water supply in deserts, sometimes associated with high concent- tions of salt. The editor of this book was born and brought up in the Great Indian Desert, and has spent much of his life studying the growth and metabolism of desert plants. It is very charming on a cool summer evening to sit at the top of a sand dune listening only to blowing air and nothing else. It has been my dream to prepare a volume on desert plants encompassing various aspects of desert plant biology. In this book, I have tried to present functional and useful aspects of the vegetation resources of deserts along with scienti?c input aimed at understanding and impr- ing the utility of these plants. The scant vegetation of deserts supports animal life and provides many useful medicines, timber and fuel wood for humans. Therefore, there are chapters devoted to medicinal plants (Chap. 1), halophytes (Chaps. 13, 14), and fruit plants (Chaps. 17, 20). Desert plants have a unique reproductive biology (Chaps. 9–11), well-adapted eco-physiological and anatomical charact- istics (Chap. 7), and specialised metabolism and survival abilities. These plants are dif?cult to propagate and pose many problems to researchers developing biote- nological approaches for their amelioration (Chaps. 18–20).
Author: Peter W. Price
Publisher: Cambridge University Press
ISBN: 1139504436
Category : Science
Languages : en
Pages : 829
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Book Description
Combining breadth of coverage with detail, this logical and cohesive introduction to insect ecology couples concepts with a broad range of examples and practical applications. It explores cutting-edge topics in the field, drawing on and highlighting the links between theory and the latest empirical studies. The sections are structured around a series of key topics, including behavioral ecology; species interactions; population ecology; food webs, communities and ecosystems; and broad patterns in nature. Chapters progress logically from the small scale to the large; from individual species through to species interactions, populations and communities. Application sections at the end of each chapter outline the practicality of ecological concepts and show how ecological information and concepts can be useful in agriculture, horticulture and forestry. Each chapter ends with a summary, providing a brief recap, followed by a set of questions and discussion topics designed to encourage independent and creative thinking.
Author: Mason Ellsworth Hale
Publisher:
ISBN:
Category : Lichens
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category : Biomedical engineering
Languages : en
Pages : 68
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Book Description
Directory of resources that serve the national biomedical community with new technologies and procedures. Arrangement according to category of resource service, i.e., Computer resources, Biomedical engineering resources, Biological structure and function, and Cellular and biochemical materials. Each entry gives title of resource, investigator, descriptions of equipment and personnel, objectives or applications, and current research. Geographical index.
Author: Gerald E. Wickens
Publisher: Springer Science & Business Media
ISBN: 3662037009
Category : Science
Languages : en
Pages : 348
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Book Description
This book deals with arid and semi-arid environments and their classification, and the physiological restraints and adaptations of plants to the environment. Further, it discusses economic botany and the needs and methods of conserving economic plants. A broad view is taken regarding the definition of economic plants, taking into account their value to the environment as well as to man and to livestock. The individual deserts and associated semi-arid regions are described in separate chapters, providing background information on the regional environments in terms of climate and major plant formations. The economic plants within these formations, their usages, geographical distribution together with their morphological and physiological adaptations are treated in detail.
Author: Bloomsbury Publishing
Publisher: Bloomsbury Publishing
ISBN: 1408102579
Category : Games & Activities
Languages : en
Pages : 719
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Book Description
Anagram Solver is the essential guide to cracking all types of quiz and crossword featuring anagrams. Containing over 200,000 words and phrases, Anagram Solver includes plural noun forms, palindromes, idioms, first names and all parts of speech. Anagrams are grouped by the number of letters they contain with the letters set out in alphabetical order so that once the letters of an anagram are arranged alphabetically, finding the solution is as easy as locating the word in a dictionary.
Author: Peter H. Raven
Publisher: National Academies
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 648
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Book Description
From earliest times, human beings have noticed patterns in nature: night and day, tides and lunar cycles, the changing seasons, plant succession, and animal migration. While recognizing patterns conferred great survival advantage, we are now in danger from our own success in multiplying our numbers and altering those patterns for our own purposes. It is imperative that we engage again with the patterns of nature, but this time, with awareness of our impact as a species. How will burgeoning human populations affect the health of ecosystems? Is loss of species simply a regrettable byproduct of human expansion? Or is the planet passing into a new epoch in just a few human generations? Nature and Human Society presents a wide-ranging exploration of these and other fundamental questions about our relationship with the environment. This book features findings, insights, and informed speculations from key figures in the field: E.O. Wilson, Thomas Lovejoy, Peter H. Raven, Gretchen Daily, David Suzuki, Norman Myers, Paul Erlich, Michael Bean, and many others. This volume explores the accelerated extinction of species and what we stand to lose--medicines, energy sources, crop pollination and pest control, the ability of water and soil to renew itself through biological processes, aesthetic and recreational benefits--and how these losses may be felt locally and acutely. What are the specific threats to biodiversity? The book explores human population growth, the homogenization of biota as a result in tourism and trade, and other factors, including the social influences of law, religious belief, and public education. Do we have the tools to protect biodiversity? The book looks at molecular genetics, satellite data, tools borrowed from medicine, and other scientific techniques to firm up our grasp of important processes in biology and earth science, including the "new" science of conservation biology. Nature and Human Society helps us renew our understanding and appreciation for natural patterns, with surprising details about microorganisms, nematodes, and other overlooked forms of life: their numbers, pervasiveness, and importance to the health of the soil, water, and air and to a host of human endeavors. This book will be of value to anyone who believes that the world's gross natural product is as important as the world's gross national product.
