A Long Term Study Of Ecological Succession In An Urban Forest Fragment
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A Long Term Study Of Ecological Succession In An Urban Forest Fragment
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Author : Madalina Liliana Ignat
language : en
Publisher:
Release Date : 2006
A Long Term Study Of Ecological Succession In An Urban Forest Fragment written by Madalina Liliana Ignat and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Ecology categories.
Old Growth Urban Forests
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Author : Robert E. Loeb
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-08-26
Old Growth Urban Forests written by Robert E. Loeb and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-26 with Science categories.
Millions of urbanites never see primeval forests during their lives except for the old growth forests found in urban parks. Unfortunately, these forests are on the verge of disappearing because arboreal reproduction is lost to human trampling and park administrators and urban foresters do not maintain these “natural” forests. To aid urban foresters and park managers in meeting the challenges, research on old growth forests in urban parks is synthesized in terms of historical ecology to introduce the methods utilized to reveal long-term forest composition changes. The case study of three stands in Fairmount Park, Philadelphia, PA relates pre-chestnut blight tree species densities and post-chestnut blight arboreal changes to fire and visitor trampling. The information gained on how urban old growth forests have developed and changed is used to develop restoration ecology based frameworks to restore species composition and address challenges to forest survival including invasive species.
Forest Succession
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Author : D. C. West
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Forest Succession written by D. C. West and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Succession-nothing in plant, community, or ecosystem ecology has been so elaborated by terminology, so much reviewed, and yet so much the center of controversy. In a general sense, every ecologist uses the concept in teaching and research, but no two ecologists seem to have a unified concept of the details of succession. The word was used by Thoreau to describe, from a naturalist's point of view, the general changes observed during the transition of an old field to a forest. As data accumulated, a lengthy taxonomy of succession developed around early twentieth century ecologists such as Cooper, Clements, and Gleason. Now, nearer the end of the century, and after much discussion concerning the nature of vegetation communities, where do ecologists stand with respect to knowledge of ecological succession? The intent of this book is not to rehash classic philosophies of succession that have emerged through the past several decades of study, but to provide a forum for ecologists to present their current research and present-day interpretation of data. To this end, we brought together a group of scientists currently studying terrestrial plant succession, who represent research experience in a broad spectrum of different ecosystem types. The results of that meeting led to this book, which presents to the reader a unique summary of contemporary research on forest succession.
Regeneration Of Urban Forests As Influenced By Fragmentation Seed Dispersal Mode And The Legacy Effect Of Reforestation Interventions
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Author : Hongyu Niu
language : en
Publisher:
Release Date : 2023
Regeneration Of Urban Forests As Influenced By Fragmentation Seed Dispersal Mode And The Legacy Effect Of Reforestation Interventions written by Hongyu Niu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Abstract: Urban forests are highly fragmented in mega-cites, acting as islands in terms of preserving species diversity. To maintain the ecological services of urban forests, management measures such as reforestation have been implemented, which might have a long-term effect on biodiversity. To understand how fragmentation and reforestation affect the natural regeneration of urban forests, we investigated the relationship between forest area, isolation and seed dispersal mode and the diversity and composition of woody species at the tree, seedling, and sapling stages in 28 secondary forests of the mega-city of Wuhan, China. We found that the alpha diversity of woody species was positively correlated with forest area, while their beta diversity was negatively correlated with forest area. The beta diversity of nonanimal-dispersed species significantly correlated with isolation. Animal-dispersed plants had consistently a higher alpha diversity from trees to seedlings and saplings, while their beta diversity was lower than nonanimal-dispersed plants at the seedling and sapling stage. The community composition of woody plants in urban forests was largely congruent among the three life stages. However, only the communities of animal-dispersed plants were consistent across life stages in small or highly-isolated forest patches. The results show that the woody plant diversity of urban forests is largely similar to that expected by island theory. Animal-dispersed trees are more likely to regenerate successfully due to a more diverse set of species used in reforestation and their higher tolerance to urban forest fragmentation. More management measures for nonanimal-dispersed species, such as enriching and repeating reforestation, will be required to maintain their high biodiversity in urban forests
Linking Restoration And Ecological Succession
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Author : Lawrence R. Walker
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-10-16
Linking Restoration And Ecological Succession written by Lawrence R. Walker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-16 with Science categories.
This innovative book integrates practical information from restoration projects around the world with the latest developments in successional theory. It recognizes the critical roles of disturbance ecology, landscape ecology, ecological assembly, invasion biology, ecosystem health, and historical ecology in habitat restoration. It argues that restoration within a successional context will best utilize the lessons from each of these disciplines.
General Technical Report Int
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Author :
language : en
Publisher:
Release Date : 1981
General Technical Report Int written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Forests and forestry categories.
The Ecological Importance Of Large Trees In Urban Environments
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Author : Lisa Simonsen
language : en
Publisher:
Release Date : 2020
The Ecological Importance Of Large Trees In Urban Environments written by Lisa Simonsen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Strategies to encourage urban biodiversity are becoming increasingly important as the population of people living in cities continues to grow and urbanisation expands. Urban forests consist of all the trees and lower vegetation within cities and play fundamentally important roles in supporting urban biodiversity, improving the environmental quality of urban areas and the aesthetics of urban landscapes. A key part of the urban forest is the large tree resource, as large trees are known to be keystone structures in many landscapes, acting as "islands' for associated biodiversity. Auckland, New Zealand, has a rapidly changing landscape, resulting in a reduction of green spaces and habitat for ecologically important features such as large trees. Recent policy changes have reduced blanket protection of large trees in urban areas, leading to an ongoing reduction in large tree abundance in Auckland. This study characterized the large tree resource in urban Auckland and determined the importance of large trees for a range of biodiversity. The Auckland urban forest was compared using a 2013 LiDAR analysis across sixteen Local Board Areas and the height distribution of trees located on various land types. Large trees were unequally distributed across different LBAs, but this variation was not correlated with several social and economic variables tested except for the time since urbanisation began. LBAs with younger suburbs generally had more large trees, suggesting large trees are lost as urbanisation progresses. Large trees were predominantly found on public parkland. A subset of urban trees were then examined over a range of diameters, of four large tree species, located in urban parks. These trees were categorised into size classes, and compared for bird species interactions, presence of microhabitats, bat roost potential, epiphyte presence and habitat features used by pest mammals. More birds (abundance) and more species of birds (species richness) interacted with large trees than smaller tree size classes. There was no significant difference between native and exotic tree species. Microhabitat features and vascular epiphytes were found predominantly on large trees compared to other tree sizes. Indications of pest mammal presence, however, was not associated with tree size class. This study provides evidence towards understanding why we require large trees to support the urban ecosystem and the biodiversity found within it. Recommendations from this research consider appropriate regulations around large trees that recognize their ecological importance for associated biota and the urban environment. Therefore, this information can be used by a variety of stakeholders in Auckland city to better manage and protect large trees and ensure a size diverse urban forest.
The Use Of Fire In Forest Restoration
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Author : Society for Ecological Restoration. Conference
language : en
Publisher:
Release Date : 1996
The Use Of Fire In Forest Restoration written by Society for Ecological Restoration. Conference and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Fire ecology categories.
Tropical Forest Remnants
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Author : William F. Laurance
language : en
Publisher: University of Chicago Press
Release Date : 1997-06-21
Tropical Forest Remnants written by William F. Laurance and has been published by University of Chicago Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-06-21 with Nature categories.
We live in an increasingly fragmented world, with islands of natural habitat cast adrift in a sea of cleared, burned, logged, polluted, and otherwise altered lands. Nowhere are fragmentation and its devastating effects more evident than in the tropical forests. By the year 2000, more than half of these forests will have been cut, causing increased soil erosion, watershed destabilization, climate degradation, and extinction of as many as 600,000 species. Tropical Forest Remnants provides the best information available to help us understand, manage, and conserve the remaining fragments. Covering geographic areas from Southeast Asia and Australia to Madagascar and the New World, this volume summarizes what is known about the ecology, management, restoration, socioeconomics, and conservation of fragmented forests. Thirty-three papers present results of recent research as well as updates from decades-long projects in progress. Two final chapters synthesize the state of research on tropical forest fragmentation and identify key priorities for future work.
Vegetation Monitoring
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Author : Caryl L. Elzinga
language : en
Publisher: DIANE Publishing
Release Date : 1998-05
Vegetation Monitoring written by Caryl L. Elzinga and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-05 with categories.
This annotated bibliography documents literature addressing the design and implementation of vegetation monitoring. It provides resources managers, ecologists, and scientists access to the great volume of literature addressing many aspects of vegetation monitoring: planning and objective setting, choosing vegetation attributes to measure, sampling design, sampling methods, statistical and graphical analysis, and communication of results. Over half of the 1400 references have been annotated. Keywords pertaining to the type of monitoring or method are included with each bibliographic entry. Keyword index.