Science topic

Canopy Research - Science topic

Scientists from all disciplines working in the forest canopy. For forests, canopy also refers to the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, arboreal animals, etc).
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Publications related to Canopy Research (68)
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Preprint
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1. Forest canopies are a highly diverse ecosystem, but despite several decades of intense research, there remain substantial gaps in our knowledge of their biodiversity and ecological interactions. One fundamental challenge in canopy research is the limited accessibility of the ecosystem. Consequently, previous studies have relied on the applicatio...
Article
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The arboreal ecosystem is vitally important to global and local biogeochemical processes, the maintenance of biodiversity in natural systems, and human health in urban environments. The ability to collect samples, observations, and data to conduct meaningful scientific research is similarly vital. The primary methods and modes of access remain limi...
Article
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The arboreal ecosystem is vitally important to global and local biogeochemical processes, the maintenance of biodiversity in natural systems, and human health in urban environments. The ability to collect samples, observations, and data to conduct meaningful scientific research is similarly vital. The primary methods and modes of access remain limi...
Article
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The Endangered dryas monkey Cercopithecus dryas , endemic to the Democratic Republic of the Congo, is one of Africa's most enigmatic primates. The discovery of a dryas monkey killed by a hunter in the buffer zone of Lomami National Park in 2014 prompted field research on the species’ distribution, habitat use and stratum preference. We used local k...
Article
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Forest canopies contribute significantly to global forest biodiversity and ecosystem functioning, yet are declining and understudied. One reason for a knowledge gap is that accessing forest canopies can be difficult and dangerous. Thus, lack of relevant canopy access skills may compromise knowledge gain and personal safety. We assessed skill levels...
Article
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Despite a rapidly expanding interdisciplinary field worldwide, forest canopies of Nepal Himalayas are yet to be explored and the national conservation strategy still has to recognize the importance to identify it as an essential domain of canopy dwelling animals and plants. In the last few decades canopy science has emerged as a new discipline with...
Article
1.Probabilistic modeling of gaps for light‐canopy interactions has long served as a theoretical basis to estimate vegetation structural parameters—leaf area index (LAI) and leaf angle distribution (LAD)—from optical measurements such as hemispherical photos. Direct inversion of such probabilistic models provides a reliable statistical algorithm for...
Preprint
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Summary of research work at Wind River Canopy Crane Research site as well as the hybrid poplar stands at Wallula
Article
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Biophysical and biochemical traits of foliage and twigs at the top of tree canopies provide essential information on trees' ecophysiology. Conventional methods used for canopy sampling are typically time consuming and costly, while the very canopy tops are still out of reach unless a canopy crane is used. Thus, we developed a novel twig sampling me...
Article
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Environmental and leaf trait effects on herbivory are supposed to vary among different feeding guilds. Herbivores also show variability in their preferences for plant ontogenetic stages. Along the vertical forest gradient, environmental conditions change, and trees represent juvenile and adult individuals in the understorey and canopy, respectively...
Article
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Understanding the ecological patterns and ecosystem processes of tropical rainforest canopies is becoming increasingly urgent in the face of widespread deforestation. However, accessing rainforest canopies is far from simple, and performing manipulative experiments in the canopy is particularly challenging. Botanic gardens provide an ideal ‘halfway...
Article
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Forest canopies are one of the most species-rich habitats, but among the least explored in the biosphere. They play a crucial role in the process of material and energy exchange between the forest and atmosphere. Individual ecosystem members (e.g., epiphytes) and the ecological function of canopies have been given insufficient attention because of...
Article
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Depreissia is a little known genus comprising two hymenopteran-mimicking species, one found in Central Africa and one in the north of Borneo. The male of D. decipiens is redescribed, the female is described for the first time. The carapace is elongated, dorsally flattened and rhombus-shaped, the rear of the thorax laterally depressed and transforme...
Conference Paper
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Kenyir Research Institute (KRI) of the Universiti Malaysia Terengganu recently established the Centre for Kenyir Ecosystems Research (CEKER), which aims to conduct research on aquatic and terrestrial ecosystems in not just Kenyir, but across Peninsular Malaysia. Here, we present our research progress and future directions from our aquatic and terre...
Article
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1.Although camera trapping has been shown to be a highly effective non-invasive tool for wildlife monitoring, the technique has not yet been widely applied to studies of arboreal species. Despite the unique challenges that camera trapping in the canopy poses, its versatility and relatively non-invasive nature, combined with recent technological imp...
Chapter
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In this chapter we address three sets of questions about the present and future role of canopy science within the larger context of forest science. First we review research that either promotes or constrains canopy science as a distinct field. Second, we examine what is known about how canopies are being altered by human use of tropical forests, an...
Chapter
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Biodiversity in the canopies remains poorly explored in many parts of the world. Particularly, there exists a large knowledge gap in the tropics on the lesser known fauna inhabiting the canopies such as amphibians. Most canopy research programs require numerous human-hours, often in harsh environments which can pose limita-tions. But technological...
Article
Full-text available
Poised between soil and sky, forest canopies represent a critical point of exchange between the atmosphere and the earth, yet until recently, they remained a largely unexplored frontier. For a long time, problems with access and the lack of tools and methods suitable for monitoring these complex bioscopes made canopy analysis extremely difficult. F...
Article
Full-text available
Phyto-geographical significance of Nepal Nepal lies in the crossroads of various floristic regions of Asia. It is here that the drier Western and Central Asiatic floral provinces meet with the more humid Sino-Japanese province. The southern part of Nepal with its flat plains is typical of the Indian province. The division between the boreal forest...
Article
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Myxomycetes, the true slime molds, are highlighted in research and teaching that emphasizes various stages of the life cycle as experimental models. Past and current phylogenetic classifica- tions of Myxomycetes on the tree of life are presented. Life cycle stages are illustrated, described, and discussed. Simple laboratory demonstrations and exper...
Article
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Students from the University of Central Missouri explored the tree canopies of the Great Smoky Mountains National Park in Tennessee and North Carolina, Daniel Boone National Forest in Kentucky, and Big Oak Tree State Park, Ha Ha Tonka State Park, and Pertle Springs in Missouri from the summer of 2000 to 2007. The Doubled Rope Climbing Method (DRCM)...
Article
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Despite more than 20 years of intensive canopy research, mycology never played an impor-tant role in investigating tree crowns and forest canopies. Using the Leipzig Canopy Crane research fa-cility to gain access to the canopy of an inner-city floodplain forest, our research focused on fungal or-ganisms that live in different niches within tree cro...
Conference Paper
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Ecologists aim to answer fundamental scientific questions regarding the natural world. Resource managers make practical decisions about natural resources, often with incomplete data. Our goal is to make research results more available to managers who decide which trees to leave when a forest stand is harvested. To that end, we work with Washington...
Article
Full-text available
To solve today’s ecological problems, scientists need well documented, validated, and coherent data archives. Historically, however, ecologists have collected and stored data idiosyncratically, making data integration even among close collaborators difficult. Further, effective ecology data warehouses and subsequent data mining require that individ...
Book
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The Leipzig Canopy Crane (LAK) project started in March 2001. Since then it is one of few scientific ventures in temperate regions that focuses on biological diversity in tree crowns and it is the first that investigates the ecosystem riparian forest both on the forest floor and in the forest canopy. As every project designed for long-term ecological...
Article
Full-text available
This article describes the necessary logistics and comments on the scientific-educational aspects to run the field course "research in canopy" first carried out at the Reserva Particular do Patrimonio Natural da Serra do Teimoso (state of Bahia) in northeastern Brazil. The field course is divided into three weeks: one devoted to climbing techniques...
Article
Full-text available
In the more than twenty years in which long-term canopy research has been conducted, mycology has been largely disregarded. Our studies using a construction crane to gain access to the canopy of a forest in Leipzig, Germany are the first long term investigations assessing the diversity and ecology of wood-decaying fungi in a canopy. Thirty-seven in...
Article
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Impacts of human activity on forest ecosystems are most pronounced in the temperate region. Simplification of stand structure has resulted in diminished ecosystem function and biodiversity decline, raising much debate over future management policies. Ecosystem functions and biodiversity may be enhanced by managing forests for increased structural c...
Article
Full-text available
Canopy access includes primarily vertical techniques for reaching the canopy from the ground, and canopy movement includes primarily horizontal techniques for moving through the canopy. Both directions of motion are necessary to fully explore and sample the forest canopy. Walkways, cranes, and rafts offer extensive canopy movement but involve subst...
Article
Full-text available
Tropical forest canopies are the least explored regions in the world. The estimate on global species richness was drastically revised after a short exploration of forest canopies. Yet, it still remains one of the least understood regions in our biosphere. Many brave researchers in the past have explored these regions with limited accessing capabili...
Article
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Various aspects of Canopy Database Project, which bring together computer scientists and ecologist to develop informatics tools for forest canopy research that meet such ecosystem informatics challenge, are discussed. The project focuses on forest canopy research, an emerging ecological subfield. It is found that small, ecologist-centered projects...
Article
Full-text available
Solving biosphere-level problems such as global warming, decreasing biodiversity, and depletion of natural resources requires changes in the ways ecological research is carried out. Historically, ecologists have collected and stored their data in individualist ways, making data sharing among collaborators and subsequent data mining difficult. Integ...
Article
Full-text available
So little is known about about what goes on above our heads in rain forests and what lives there that the rain forest ‘canopy’ has been called the ‘last biological frontier’. Until very recently, researchers had very limited access to the canopy, even in temperate forests and, not surprisingly, we are only just beginning to discover this part of th...
Article
Full-text available
Conducting research in forest canopies is accompanied by both opportunities and difficulties. Opportunities occur because the canopy is important in overall forest structure and function, for example in containing a high proportion of species richness, being the site of forest-atmosphere fluxes, and in strongly influencing understory microclimate....
Article
Full-text available
Forest canopy communities are important in maintaining the diversity, resilience, and functioning of the ecosystems they inhabit. With the increasing interest in and amounts of data on forest canopies resulting from new access techniques, ecologists require tools to manage and analyze their data and to compare data from disparate studies. Canopy ec...
Article
Ecological understanding of many arboreal and semi-arboreal species is limited because of difficulties associated with studying wildlife in canopies. As part of a multi-faceted Pinus strobus canopy research project, we used camera traps located in canopies to examine diel, seasonal, and spatial patterns of Peromyscus spp.'s arboreal habitat use. Fr...
Article
Vertical gradients of habitats are a typical characteristic of forest ecosystems. Sun-exposed dead wood in the upper canopy, for instance, provides a habitat for saproxylic beetles distinct from that in the more shaded dead wood below the canopy. Canopy research, however, is challenging due to both the limited accessibility and potential confoundin...
Article
Machine vision technology is widely used in agriculture plant recognition and ecosystem assessment. However, it is still difficult to recognize the center of plant canopy due to the similar color background and occlusion problems. The main difficult is the interference of excess leaves in the canopy. Learn from this inspiration that insects first g...
Article
On July 3, 2015, Nalini Nadkarni, a world-renowned ecologist who had been studying the biologic processes of ecosystem disturbance and recovery, sustained a catastrophic 50-foot free-fall from the top of the rainforest canopy to the forest floor at her remote field research site. She lost consciousness in shock and sustained life-threatening injuri...
Article
The characteristics of aircraft cockpit canopies made of transparent organic material are described. Three types of canopy and their characteristics are compared. The current status of cockpit canopy development in major industrial nations is compared. The typical performance characteristics of transparent materials for aviation applications are de...
Article
Mosses and lichens growing on trees and rocks are a common habitat for limno-terrestrial tardigrades all over the world. However, worldwide tardigrade research has been conducted primarily with ground level samples. In order to determine the presence, absence, diversity, distribution and size of tardigrade populations in the canopy, researchers asc...
Chapter
The future protection of rainforest biodiversity and forest canopies depends on our youth becoming concerned scientists, responsible policy makers, and informed global citizens. With rainforest education marginalized in K-12 classrooms around the world, how do we nurture this next generation to address this concern? Environmental Expeditions’ Amazo...
Chapter
Forest canopies are often called the “eighth continent of planet Earth” (Wilson 2005) due to their complexity and enormous biodiversity. With the explosion of canopy exploration over the last two decades (Lowman 1999; Lowman and Rinker 2004b), made possible by the simultaneous development of safe single- and doubled-rope tree climbing techniques (S...
Article
Urban tree and forest establishment is becoming one of the most significant approaches for combating the ecological and environmental problems associated with the rapid urbanization globally. The fragmentation of urban landscape and built-in facilities may leave less large scale open spaces for developing patchy forests and green spaces. Therefore,...
Article
Poised between soil and sky, forest canopies represent a critical point of exchange between the atmosphere and the earth, yet until recently, they remained a largely unexplored frontier. For a long time, problems with access and the lack of tools and methods suitable for monitoring these complex bioscapes made canopy analysis extremely difficult. F...
Article
The development of new and more versatile access techniques is a major contributor to the continuously growing field of canopy research. Methods such as cranes, canopy walkways, hot-air balloons, ladders and rope access techniques enabled scientist for the first time to conduct proximate studies of canopy organisms. One of the most studied groups o...
Conference Paper
Background/Question/Methods Since the publication of Lowman and Rinker’s Forest Canopies (2nd edition) in 2004, exciting research has continued in the High Frontier. In this brief overview of canopy ecology, I will touch on a few highlights of recent work which follows up some of the topics addressed in Forest Canopies. The interface between herbi...
Conference Paper
Contributions of canopy research to public education and understanding of ecosystem services Background/Question/Methods Forest canopies form a critical interface for exchange of material between the geosphere, biosphere and atmosphere. Forest canopies may host more than half of the global biota, which is instrumental in regulating energy, carb...
Article
After thirty years of development, canopy science is still an emerging frontier of exploration promising not only adventure and scientific discovery but also solutions to global challenges. Important environmental issues such as climate change, biodiversity conservation, and whole forest interactions have inspired data collection within canopies as...
Article
A diverse assemblage of oribatid mites inhabits the canopy of coniferous trees in western North America. We tested the hypothesis that oribatid mites are microhabitat specific in old-growth Douglas fir, Western hemlock and western redcedar at the Wind River Crane Canopy Research Facility, Washington, USA. The upper 3 m of canopy of the three tree s...
Article
This paper is a tribute to Dr. R.A. Ring upon his retirement. During the past 12 years (1993–2005), an emerging canopy research program has established a wealth of baseline information on the structure and functioning of temperate rain forest canopy arthropod communities. Studies from research sites on Vancouver Island, British Columbia, have shown...
Article
The process of integrating a Higher Plant Chamber (HPC) in the MELiSSA Pilot Plant demands reliable data on crop photosynthetic responses to varying light intensity. Such data allow for the development of dynamic photosynthetic models which, in turn, are used in the control of the HPC. A number of full canopy research trials have been conducted usi...
Chapter
Global rates of deforestation are disputed. The Food and Agriculture Organization (FAO) estimated global net rates of deforestation of around 9 million hectares in the 1990s, or 0.23 percent of total forest area. The World Resources Institute disputes the figure, noting that FAO data include biodiversity-poor plantations as afforestation, offsettin...
Article
Summary • The functional characteristics of forests are related to the organization of their canopies. However, understanding the relationship between canopy structure and function has been limited by a paucity of methods for determining structure at scales consistent with those of function measurements. • We describe here a portable system, assemb...
Article
By international agreement (Austria-Venezuela) a tower crane was installed near Surumoni river, Upper Orinoco, for canopy research in a tropical rain forest. From the 1.5 ha crane-accessible area of the forest, an experimental plot was selected for assessment of the canopy plants' aerial substrates and to determine their relationship with spatial d...
Article
Yearbook of the Association of Pacific Coast Geographers 66 (2004) 151-153 The 66th annual meeting of the Association of Pacific Coast Geographers was held on the campus of Portland State University September 17-20, 2003. Over 280 participants enjoyed lively paper sessions; field trips to regional parks, glaciers, wineries, and the urban fringe; se...
Article
This paper gives, for the first time, a complete history of rain forest canopy access, from the early years to the present day. This review is primarily from the European perspective, and explores the development of canopy access techniques, from low-tech methods such as single rope technique, to hi-tech approaches such as canopy cranes. In recent...
Article
Study of the forest canopy has reached a critical stage in its development from a young frontier area of study to a vibrant and coalescing field of investigation and communication. Many current environmental and social issues at global scales (e.g., environmental change, acid deposition, loss of biodiversity) are related directly to our knowledge o...
Article
Plants are one of the sessile components of the forest canopy, and consequently quantitative studies of plant components are more widely available than for some of their mobile counterparts. From a global perspective, several exciting and innovative canopy access tools have been designed over the past few decades that have facilitated the expansion...
Article
Plants are one of the sessile components of the forest canopy, and consequently quantitative studies of plant components are more widely available than for some of their mobile counterparts. From a global perspective, several exciting and innovative canopy access tools have been designed over the past few decades that have facilitated the expansion...
Article
Forest canopy research is one of the more recent frontiers of scientific research. Many methods have been devised to obtain data from the treetops, including the use of canopy cranes. Access to regions beneath the canopy surface of dense forests, however, is restricted to canopy gaps large enough for passage of the crane gondola. Often the result i...