Liana Distribution and Host Relationships in Some Temperate Versus Tropical Forest Sites PDF Download
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Author: Christine M. Jarzomski
Publisher:
ISBN:
Category : Climbing plants
Languages : en
Pages : 184
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Book Description
Author: Christine M. Jarzomski
Publisher:
ISBN:
Category : Climbing plants
Languages : en
Pages : 184
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Book Description
Author: Stefan Schnitzer
Publisher: John Wiley & Sons
ISBN: 1118392485
Category : Science
Languages : en
Pages : 517
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Book Description
Lianas are woody vines that were the focus of intense study by early ecologists, such as Darwin, who devoted an entire book to the natural history of climbing plants. Over the past quarter century, there has been a resurgence in the study of lianas, and liana are again recognized as important components of many forests, particularly in the tropics. The increasing amount of research on lianas has resulted in a fundamentally deeper understanding of liana ecology, evolution, and life-history, as well as the myriad roles lianas play in forest dynamics and functioning. This book provides insight into the ecology and evolution of lianas, their anatomy, physiology, and natural history, their global abundance and distribution, and their wide-ranging effects on the myriad organisms that inhabit tropical and temperate forests.
Author: Walter Carson
Publisher: John Wiley & Sons
ISBN: 1444356267
Category : Science
Languages : en
Pages : 686
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Book Description
Historically, tropical ecology has been a science often content with descriptive and demographic approaches, which is understandable given the difficulty of studying these ecosystems and the need for basic demographic information. Nonetheless, over the last several years, tropical ecologists have begun to test more sophisticated ecological theory and are now beginning to address a broad array of questions that are of particular importance to tropical systems, and ecology in general. Why are there are so many species in tropical forests and what mechanisms are responsible for the maintenance of that vast species diversity? What factors control species coexistence? Are there common patterns of species abundance and distribution across broad geographic scales? What is the role of trophic interactions in these complex ecosystems? How can these fragile ecosystems be conserved? Containing contributions from some of the world’s leading tropical ecologists, Tropical Forest Community Ecology provides a summary of the key issues in the discipline of tropical ecology: Includes contributions from some of the world’s leading tropical ecologists Covers patterns of species distribution, the maintenance of species diversity, the community ecology of tropical animals, forest regeneration and conservation of tropical ecosystems
Author: Francis E. Putz
Publisher: Cambridge University Press
ISBN: 9780521392501
Category : Gardening
Languages : en
Pages : 576
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Book Description
This 1992 book is a treatment of what was known about climbing plants, written by a group of experts.
Author: Florencia Montagnini
Publisher: Springer Science & Business Media
ISBN: 9783540237976
Category : Nature
Languages : en
Pages : 312
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Book Description
Importance pf tropical forests; characteristics of tropical forests; classification of tropical forests; deforestation in the tropics; management of tropical forests; plantatios and agroforestry systems; approaches for implementing sustainable management techniques.
Author: Eric J Manzane
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Lianas is a term that identifies vines that produce secondary wood tissue and whose distribution is mostly restricted to the tropics. They usually start their lifecycle as seedlings in the forest understory an after a period of time they climb to the canopy forest supported by the surrounding vegetation. The seedling itself is an important stage on the plant's life cycle; in this stage plants are susceptible to high mortality rates due to biotic or abiotic factors, such as predation, diseases, drought or flooding. Depending on the survival at this stage, they can extend their habitat range and colonize new environments, but failure to do so can decrease their natural habitat range. Liana seedlings can be classified in two separated functional groups: freestanding seedlings: the ones that can grow without a mechanical support and can remain as small woody plants for a relatively long period of time and support-seekers seedlings: the seedlings that reach for a host to climb on earlier in their life cycle. Until now little is known about the ecological or the physiological differences or similitudes between this two different functional groups. My main objective in this work was to evaluate the distribution and density of liana seedlings in general and of this two functional groups, first at regional scale using a series of plots across a rainfall gradients and different types of soil, then evaluate the population trends of liana seedlings at local scale using a series of datasets from the 50 hectare plot located in Barro Colorado Island in the Gatun Lake of the Panama Canal. The data sets consist on a series of seedling censuses from 2001 to 2004, soil data for all the 50 hectare and canopy forest census for the same period of time. Finally I have studied the physiology and life history traits of each group, comparing traits such as relative growth rates, stem diameter, leaf area and leaf mass per area, hydraulic architecture, and photosynthetic rates in plants with similar age. At regional scale liana seedlings were more abundant in sites that have limestone soil, independently of the rainfall pattern. But laterite soil sites in contrast had higher diversity of liana seedlings. Freestanding liana seedlings were more abundant in wet sites than in dry sites, while the support-seekers liana seedlings were more abundant in drier sites than in wet areas. On a smaller scale at the 50 hectare plot I observed that liana seedlings were increasing in population size together with shrub seedlings, meanwhile tree seedlings were decreasing in number. Out of the two liana seedling functional groups, freestanding and support-seekers, the support-seekers contribute more to this trend in liana population changes because they had a higher rate of yearly increase. Neither soil nutrients nor gap opening showed a strong effect over changes in population trends. Experiments determining the differences in life history and physiological traits between the two functional groups, freestanding versus support-seekers liana seedlings using eight different species of liana, showed that although the groups do differ in traits such as leaf area, leaf mas per area, stem diameter, relative growth rate, specific and leaf specific hydraulic conductance, and electron transport rate, the freestanding seedlings seems to be en general more closely related in those characteristics, while the support-seekers, seems to have some characteristics in common between them and also some in common with freestanding seedlings Overall these two groups of seedlings seems to have different distributions patterns at regional scale, different population patterns at local scale, but the physiological and life traits characteristics seems to overlap in some species. Perhaps we can view these groups as either two complete separate functional groups with some species more closely related to each other in terms of life history and physiological traits or as a gradient of characteristics in which each species is located in a different position along a continuum of life history and physiological characteristics.
Author: Tohru Nakashizuka
Publisher: Springer Science & Business Media
ISBN: 4431678794
Category : Science
Languages : en
Pages : 441
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Book Description
The studies in the Ogawa Forest Reserve (OPR) were initiated by a group of plant ecologists and gradually expanded into a comprehensive project covering various aspects of biology, soil science, and silviculture. The project was integrated as part of the Forest Ecosystem Team under the BIO-COSMOS Program funded by the Ministry of Agriculture, Forestry and Fisheries. As the coordinators of the Forest Ecosystem Team, we are pleased that reports of the long-term studies carried out in the OFR are being published in this first volume on Japanese ecosystems in the Ecological Studies series. Scientists and researchers have made numerous contributions to the field of forest ecology during more than 10 years of studies in the OFR. Two reasons can be cited for the success of the project: scientists from various disciplines concen trated on a single target forest ecosystem, and the research continued over a rela tively long term. It is now recognized that ecological processes include compli cated mechanisms supported by interactions among organisms and large temporal variations. The researchers in the OFR project were motivated by their interest in the history of ecosystems and the interactions of diverse creatures in the forest.
Author: Andrew Dobson
Publisher: Princeton University Press
ISBN: 0691199833
Category : Science
Languages : en
Pages : 412
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Book Description
"This volume provides a series of essays on open questions in ecology with the overarching goal being to outline to the most important, most interesting or most fundamental problems in ecology that need to be addressed. The contributions span ecological subfields, from behavioral ecology and population ecology to disease ecology and conservation and range in tone from the technical to more personal meditations on the state of the field. Many of the chapters start or end in moments of genuine curiosity, like one which takes up the question of why the world is green or another which asks what might come of a thought experiment in which we "turn-off" evolution entirely"--
Author: Frances Seymour
Publisher: Brookings Institution Press
ISBN: 1933286865
Category : Business & Economics
Languages : en
Pages : 389
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Book Description
Tropical forests are an undervalued asset in meeting the greatest global challenges of our time—averting climate change and promoting development. Despite their importance, tropical forests and their ecosystems are being destroyed at a high and even increasing rate in most forest-rich countries. The good news is that the science, economics, and politics are aligned to support a major international effort over the next five years to reverse tropical deforestation. Why Forests? Why Now? synthesizes the latest evidence on the importance of tropical forests in a way that is accessible to anyone interested in climate change and development and to readers already familiar with the problem of deforestation. It makes the case to decisionmakers in rich countries that rewarding developing countries for protecting their forests is urgent, affordable, and achievable.
Author: Frans Bongers
Publisher: CABI
ISBN: 9780851999142
Category : Science
Languages : en
Pages : 296
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Book Description
Climbing plants, including lianas, represent a fascinating component of the ecology of tropical forests. This book focuses on the climbing plants of West African forests. Based on original research, it presents information on the flora (including a checklist), diversity (with overviews at several levels of integration), ecology (distribution, characteristics in relation to environment, their role in forest ecosystems) and ethnobotany. Forestry aspects, such as their impact on tree growth and development, and the effects of forestry interventions on climbers are also covered.
