Download or read book The Reproductive Ecology of Two Terrestrial Orchids Caladenia Rigida and Caladenia Tentaculata written by Renate Faast and published by . This book was released on 2010 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reproductive outcome of plants is often determined by a multitude of interacting factors operating at both the plant level and the population level. For many plants, fruit production and the subsequent release of seeds are paramount for the persistence of the species. Understanding the processes that influence variation within and among populations is therefore crucial for the successful long-term management of threatened plants. While abiotic factors such as resource availability and environmental conditions can influence seed production directly through their effects on plant growth, biological interactions such as those between plants and pollinators or herbivores can be equally important. The relative intensity and direction of such interactions are often determined by the nature of the plants themselves, or by characteristics of the plant population or the habitat in which it occurs. This thesis examines the processes that influence spatio-temporal variation in the reproductive success of two terrestrial orchids, Caladenia rigida and Caladenia tentaculata. The study was carried out over three years (2005 - 2007), in several populations located in the Mount Lofty region of South Australia. A detailed investigation of the pollination strategy employed by C. rigida revealed that this species is a generalist, being pollinated by a suite of food-seeking insects, possibly attracted by the presence of small amounts of nectar. Successful pollination and seed release for C. rigida was highly variable across space and time. Furthermore, both measures were consistently higher than for the sexually deceptive species, C. tentaculata, leading to the suggestion that the highly specialised pollination syndrome of the latter species may place it at a reproductive disadvantage. Pollination success of C. rigida was influenced by the height of flowers, but not by the local density of conspecifics. Small populations of C. rigida did not produce capsules when environmental conditions were stressful, suggesting that resource availability may indirectly restrict reproductive success by limiting the availability of pollinators. Poor seed quality in some populations may also be attributed to reduced population size. Both orchid species were subject to intense levels of vertebrate florivory and capsule predation, leading to significant reductions in seed output. A herbivore exclusion experiment was carried out to help elucidate the size and type of herbivores, and video surveillance identified birds as a predominant florivore in some populations. The intensity of florivory varied within and among populations, as well as among years, in response to several factors including flower height, the local density of conspecifics, concealment amongst neighbourhood vegetation and proximity to the habitat edge. Spatio-temporal variation in seed release was thus the net outcome of processes acting on both mutualistic and antagonistic interactions. This work provides valuable baseline data of factors that influence the reproductive ecology and, hence, population dynamics of Caladenia species. Implications for the conservation and management of threatened populations are discussed, with respect to both short-term and long-term goals. The thesis is presented as a series of five manuscripts. Two of these have been published, and the remaining three have been prepared for submission as publications.
Download or read book Population Ecology of Terrestrial Orchids written by T. C. E. Wells and published by Balogh Scientific Books. This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Matrix model, population dynamics, management.
Download or read book Population ecology of terrestrial orchids written by T C E. Wells and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Australian Journal of Botany written by and published by . This book was released on 2009 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orchids of South Australia written by R. J. Bates and published by . This book was released on 1990 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive guide to the orchids of South Australia. Contains photographs of every known orchid species in the state and includes information on orchid biology, ecology and history. Distribution maps and habitat notes are included for each orchid.
Download or read book Edible Medicinal and Non Medicinal Plants written by T. K. Lim and published by Springer. This book was released on 2014-12-03 with total page 1047 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 9 is part of a multicompendium Edible Medicinal and Non-Medicinal Plants, on plants with edible modified stems, roots and bulbs from Acanthaceae to Zygophyllaceae (tabular) and 32 selected species in Alismataceae, Amaryllidaceae, Apiaceae, Araceae, Araliaceae, Asparagaceae, Asteraceae, Basellaceae, Brassicaceae and Campanulaceae in detail. This work is of significant interest to medical practitioners, pharmacologists, ethnobotanists, horticulturists, food nutritionists, botanists, agriculturists, conservationists, and general public. Topics covered include: taxonomy; common/ vernacular names; origin/ distribution; agroecology; edible plant parts/uses; botany; nutritive/medicinal properties, nonedible uses and selected references.
Download or read book Rare and Exotic Orchids written by Joel L. Schiff and published by Springer. This book was released on 2017-12-08 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprising some 28,000 different species, orchids are by far the largest flowering plant family on Earth. Every year, new species are being uncovered in the wild or created by humans, and so this number has only continued to blossom. This book is intended for those who wish to learn about the multifaceted nature of this amazing plant. It covers many different aspects of orchid study, from its cultural history to its evolutionary development and from its first discoveries to ongoing scientific research. No matter your specialty or level of orchid expertise, you can find in this book new and fascinating facts and stories that will make you gasp, laugh, and read on. Through the many exotic and beautiful pictures permeating these pages, you will come to know something of the infinite diversity of this plant family and at last learn why so many orchid growers and fanatics have embarked on this same endless path. “I was smitten with this book after reading the very first chapter on the history of Orchids...There are plenty of interesting facts to charm your orchid friends and impress even the most studied researcher... All in all a fabulous read that is well illustrated and with a reference section the likes of which I have never seen before with its vast and varied appendices on a slew of subjects. If you are looking for a book that is engaging and educational with lots of good humor thrown in, then this book is for you. I know that I will treasure my copy for years to come.” -- Laura Newton, American Orchid Society Awards Registrar and Accredited Judge, ORCHIDS Magazine (May, 2018) "Joel L. Schiff brings to life not just the science surrounding orchids, but the human process of recognizing, cataloging, and appreciating them...It's this approach, combined with lovely close-up color photos throughout, which makes Rare and Exotic Orchids a recommendation not just for professionals or botany libraries, but for general-interest readers who will enjoy a highly accessible study that invites an in-depth interest in orchids and their importance to human affairs."-- Diane Donovan’s Pick of the Month (April, 2018)
Download or read book The Genus Cypripedium written by Phillip Cribb and published by Royal Botanic Gardens Kew. This book was released on 2000-01-15 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cypripediums, the lady slipper orchids, are the showiest and undoubtedly the most collectable of all terrestrial orchids. This monograph examines the history, biology, conservation, cultivation and classification of the temperate slipper orchids. With 26 colour paintings, 98 colour photographs, 51 line drawings and 22 maps.
Download or read book Plant Species and Plant Communities written by E. van der Maarel and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terrestrial Orchids written by Hanne N. Rasmussen and published by Cambridge University Press. This book was released on 1995-08-24 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a detailed survey of the biology of terrestrial orchids, from seed dispersal to establishment and life of the adult plant.
Download or read book Seedling Ecology and Evolution written by Mary Allessio Leck and published by Cambridge University Press. This book was released on 2008-09-18 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seedlings are highly sensitive to their environment. After seeds, they typically suffer the highest mortality of any life history stage. This book provides a comprehensive exploration of the seedling stage of the plant life cycle. It considers the importance of seedlings in plant communities; environmental factors with special impact on seedlings; the morphological and physiological diversity of seedlings including mycorrhizae; the relationship of the seedling with other life stages; seedling evolution; and seedlings in human altered ecosystems, including deserts, tropical rainforests, and habitat restoration projects. The diversity of seedlings is portrayed by including specialised groups like orchids, bromeliads, and parasitic and carnivorous plants. Discussions of physiology, morphology, evolution and ecology are brought together to focus on how and why seedlings are successful. This important text sets the stage for future research and is valuable to graduate students and researchers in plant ecology, botany, agriculture and conservation.
Download or read book Field Guide to the Orchids of Western Australia written by Andrew Brown and published by . This book was released on 2013 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: BOTANY & PLANT SCIENCES. AUSTRALIAN. The flora of Western Australia is remarkably rich in orchids and includes some of the world's most attractive, colourful and unusual species.
Download or read book Temporal Dynamics and Ecological Process written by Colleen K. Kelly and published by Cambridge University Press. This book was released on 2014-01-16 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: In contrast with the fundamental ecological expectation that similarity induces competition and loss of species, temporal dynamics allows similar species to co-occur. In fact, the coexistence of similar species contributes significantly to species diversity and could affect ecosystem response to climate change. However, because temporal processes take place over time, they have often been a challenge to document or even to identify. Temporal Dynamics and Ecological Process brings together studies that have met this challenge and present two specific aspects of temporal processes: reproductive scheduling and the stable coexistence of similar species. By using plants to extract general principles, these studies uncover deep ties between temporal niche dynamics and the above central ecological issues, thereby providing a better understanding of what drives temporal processes in nature. Written by leading scientists in the field, this title will be a valuable source of reference to research ecologists and those interested in temporal ecology.
Download or read book Darwin s Orchids written by Retha Edens-Meier and published by University of Chicago Press. This book was released on 2014-11-05 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: A quorum of scientists offer reviews and results to celebrate the 150th anniversary of 'On The Various Contrivances By Which British And Foreign Orchids Are Fertilised By Insects, And On The Good Effects Of Intercrossing' (1862). Authors of the first ten chapters follow research on the pollination and breeding systems of the same orchid lineages that interested Darwin, including temperate and tropical species. Authors on the last two chapters provide information on the floral attractants and flowering systems of orchids using protocols and technologies unavailable during Darwin's lifetime.
Download or read book Orchid Biology written by J. Arditti and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Personal Note I decided to initiate Orchid Biology: Reviews and Perspectives in about 1972 and (alone or with co-authors) started to write some of the chapters and the appendix for the volume in 1974 during a visit to the Bogor Botanical Gardens in Indonesia. Professor H. C. D. de Wit of Holland was also in Bogor at that time and when we discovered a joint interest in Rumphius he agreed to write a chapter about him. I visited Bangkok on my way home from Bogor and while there spent time with Professor Thavorn Vajrabhaya. He readily agreed to write a chapter. The rest of the chapters were solicited by mail and I had the complete manuscript on my desk in 1975. With that in hand I started to look for a publisher. Most of the publishers I contacted were not interested. Fortunately Mr James Twiggs, at that time editor of Cornell University Press, grew orchids and liked the idea. He decided to publish Orchid Biology: Reviews and Per spectives, and volume I saw the light of day in 1977. I did not know if there would be a volume II but collected manuscripts for it anyway. Fortunately volume I did well enough to justify a second book, and the series was born. It is still alive at present - 20 years, seven volumes and three publishers later. I was in the first third of my career when volume I was published.
Download or read book Plant Life on the Sandplains in Southwest Australia written by H. Lambers and published by Apollo Books. This book was released on 2014 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A thorough revision and expansion of Pate and Beard's Kwongan--Plant Life of the Sandplain (1984)"--Page 4 of cover.
Download or read book Flora of Victoria Introduction written by D. B. Foreman and published by Butterworth-Heinemann. This book was released on 1993 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume in a series of four on the flora of Victoria draws together the work of specialists to give an overview of the state's diverse flora and to consider important environmental factors that bear upon plant communities. It serves as an introduction to the three accompanying taxonomic volumes. Indexed.
