Search results: Found 27

Listing 1 - 10 of 27 << page
of 3
>>
Sort by
Biology, Ecology and Management of Crown-of-Thorns Starfish

Authors: ---
ISBN: 9783038426028 9783038426035 Year: Pages: VIII, 272 DOI: 10.3390/books978-3-03842-603-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology
Added to DOAB on : 2017-12-04 12:20:54
License:

Loading...
Export citation

Choose an application

Abstract

Outbreaks of crown-of-thorns starfish (Acanthaster spp.) are a major contributor to ongoing coral loss on reefs throughout the Indo-Pacific, thereby jeopardizing productivity and biodiversity of these important marine ecosystems. Controlling outbreak populations of Acanthaster spp. is considered one of the most promising strategies to halt or reverse widespread declines in live coral cover. Effective management of crown-of-thorns starfish is, however, conditional on improved understanding of their biology and ecology. While crown-of-thorns starfish are arguably the most extensively studied of any single coral reef species, there remain considerable gaps in our knowledge of their basic biology and ecology. This edited monograph presents the latest research and significant advances in understanding and managing outbreaks of crown-of-thorns starfish.

Forest Management and Water Resources in the Anthropocene

Authors: ---
ISBN: 9783038425755 9783038425762 Year: Pages: VIII, 222 DOI: 10.3390/books978-3-03842-576-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences
Added to DOAB on : 2017-12-06 12:44:47
License:

Loading...
Export citation

Choose an application

Abstract

Decades of research has provided a depth of understanding on the relationships among forests and water, and how these relationships change in response to climate variability, disturbance, and forest management. This understanding has facilitated a strong predictive capacity and the development of best management practices to protect water resources with active management. Despite this understanding, the rapid pace of changes in climate, disturbance regimes, invasive species, human population growth, and land use expected in the 21st century is likely to create substantial challenges for watershed management that may require new approaches, models, and best management practices. These challenges are likely to be complex and large scale, involving a combination of direct effects and indirect biophysical watershed responses, as well as socioeconomic impacts and feedbacks. We explore the complex relationships between forests and water in a rapidly changing environment, examine the trade-offs and conflicts between water and other resources, and examine new management approaches for sustaining water resources in the future.

Forest Soil Respiration under Climate Changing

Authors: ---
ISBN: 9783038971788 9783038971795 Year: Pages: 186 DOI: 10.3390/books978-3-03897-179-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Forestry --- Environmental Sciences
Added to DOAB on : 2018-10-09 11:32:21
License:

Loading...
Export citation

Choose an application

Abstract

The respiration of forest soils and the major factors controlling its rate are fairly well understood. The process is of utmost significance because its balance with the fixation of CO2 in the biomass defines whether a particular site is a source or sink of atmospheric CO2. Currently, the measurement of soil respiration in the field requires rather expensive experimental installations. Nevertheless, there are still some caveats in our understanding, such as the separation of autotrophic and heterotrophic soil respiration, the relevance of different groups of soil organisms, the effect of ecosystem disturbances in different types of forests on soil respiration with respect to magnitude and duration, the adaptation of soil respiration to changing site conditions, and the regional prediction of soil respiration, based on proxy data. Technical progress and additional contributions on process understanding will put us in the position of better predictions of the forest soil respiration. We encourage studies from all fields, including experimental studies, monitoring approaches and models, to contribute to this Special Issue in order to promote knowledge and adaptation strategies for the preservation, management, and future development of forest ecosystems.

Virus Ecology and Disturbances: Impact of Environmental Disruption on the Viruses of Microorganisms

Authors: ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194483 Year: Pages: 94 DOI: 10.3389/978-2-88919-448-3 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Science (General)
Added to DOAB on : 2016-02-05 17:24:33
License:

Loading...
Export citation

Choose an application

Abstract

Viruses infect numerous microorganisms including, predominantly, Bacteria (bacteriophages or phages) but also Archaea, Protists, and Fungi. They are the most abundant and ubiquitous biological entities on Earth and are important drivers of ecosystem functioning. Little is known, however, about the vast majority of these viruses of microorganisms, or VoMs. Modern techniques such as metagenomics have enabled the discovery and description of more presumptive VoMs than ever before, but also have exposed gaps in our understanding of VoM ecology. Exploring the ecology of these viruses – which is how they interact with host organisms, the abiotic environment, larger organisms, and even other viruses across a variety of environments and conditions – is the next frontier. Integration of a growing molecular understanding of VoMs with ecological studies will expand our knowledge of ecosystem dynamics. Ecology can be studied at multiple levels including individual organisms, populations, communities, whole ecosystems, and the entire biosphere. Ecology additionally can consider normal, equilibrium conditions or instead perturbations. Perturbations are of particular interest because measuring the effect of disturbances on VoM-associated communities provides important windows into how VoMs contribute to ecosystem dynamics. These disturbances in turn can be studied through in vitro, in vivo, and in situ experimentation, measuring responses by VoM-associated communities to changes in nutrient availability, stress, physical disruption, seasonality, etc., and could apply to studies at all ecological levels. These are considered here across diverse systems and environments.

Palynology and Vegetation History

Authors: --- --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456871 Year: Pages: 288 DOI: 10.3389/978-2-88945-687-1 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Ecology
Added to DOAB on : 2019-01-23 14:53:43
License:

Loading...
Export citation

Choose an application

Abstract

This Research Topic commemorates the centenary of the first quantitative pollen diagram by Lennart von Post, the founder of paleoecological palynology. The main aim is to provide a thorough view of the use of palynology in aspects such as the reconstruction of Quaternary vegetation and environmental changes, the role of natural and anthropogenic drivers in the development of the Quaternary vegetation, the shaping of present-day ecological and biogeographical patterns, the potential application of this knowledge in biodiversity conservation and landscape restoration and the development of new methods of pollen analysis and data management. The Research Topic is subdivided into four main conceptual parts, namely (1) modern analog studies; (2) land cover estimates from pollen data; (3) vegetation dynamics reconstructions from Europe, North and South America, Africa and Oceania; and (4) large-scale reviews and meta-analyses. Hopefully, this Research Topic will serve to appraise the state of the art of modern palynology and highlight the usefulness of this discipline in long-term ecological research.

Nutrient Cycling and Plant Nutrition in Forest Ecosystems

Authors: ---
ISBN: 9783038423850 9783038423843 Year: Pages: XII, 252 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2017-05-30 09:18:22
License:

Loading...
Export citation

Choose an application

Abstract

Nutrient cycling is essential for maintaining nutrient supply to forest plants and for enhancing forest productivity. Nutrient cycling is also strongly linked to greenhouse gas emissions and thus to global climate change. Nutrient cycling and plant nutrition can be severely affected by anthropogenic and natural disturbance regimes. This Special Issue will provide an avenue to publish recent progress on research on nutrient cycling and plant nutrition in forest ecosystems and how nutrient cycling and plant nutrition are affected by disturbance regimes such as harvesting, atmospheric deposition and climate change.

Autonomous Control of Unmanned Aerial Vehicles

Author:
ISBN: 9783039210305 / 9783039210312 Year: Pages: 270 DOI: 10.3390/books978-3-03921-031-2 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-06-26 08:44:06
License:

Loading...
Export citation

Choose an application

Abstract

Unmanned aerial vehicles (UAVs) are being increasingly used in different applications in both military and civilian domains. These applications include surveillance, reconnaissance, remote sensing, target acquisition, border patrol, infrastructure monitoring, aerial imaging, industrial inspection, and emergency medical aid. Vehicles that can be considered autonomous must be able to make decisions and react to events without direct intervention by humans. Although some UAVs are able to perform increasingly complex autonomous manoeuvres, most UAVs are not fully autonomous; instead, they are mostly operated remotely by humans. To make UAVs fully autonomous, many technological and algorithmic developments are still required. For instance, UAVs will need to improve their sensing of obstacles and subsequent avoidance. This becomes particularly important as autonomous UAVs start to operate in civilian airspaces that are occupied by other aircraft. The aim of this volume is to bring together the work of leading researchers and practitioners in the field of unmanned aerial vehicles with a common interest in their autonomy. The contributions that are part of this volume present key challenges associated with the autonomous control of unmanned aerial vehicles, and propose solution methodologies to address such challenges, analyse the proposed methodologies, and evaluate their performance.

Radio als Hör-Spiel-Raum

Author:
Book Series: Medien- und Gestaltungsästhetik ISBN: 9783839440469 9783837640465 Year: Pages: 432 DOI: 10.14361/9783839440469 Language: German
Publisher: transcript Verlag
Subject: Media and communication
Added to DOAB on : 2019-01-15 13:34:01
License:

Loading...
Export citation

Choose an application

Abstract

The audio plays of broadcasting history discussed in this book explore opportunities between (particularly technical) dispositive and radio-phonetic forms of performance and staging.&#xD;

Updates in Pediatric Sleep and Child Psychiatry

Authors: ---
ISBN: 9783038979388 / 9783038979395 Year: Pages: 160 DOI: 10.3390/books978-3-03897-939-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Pediatrics
Added to DOAB on : 2019-06-26 08:44:06
License:

Loading...
Export citation

Choose an application

Abstract

Sleep-related symptoms are common in the majority of psychiatric diagnostic categories. The overlap of sleep and psychiatric disorders have been demonstrated in numerous studies. The understanding of sleep and child psychiatry has progressively evolved in the last decade and newer insights have developed regarding the complex interaction between sleep and psychopathology. This collection of articles represents updates on sleep and psychiatric disorders with medical and neurological co-morbidities in children and adolescents.

Causes and Consequences of Species Diversity in Forest Ecosystems

Authors: ---
ISBN: 9783039213092 / 9783039213108 Year: Pages: 272 DOI: 10.3390/books978-3-03921-310-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Geography
Added to DOAB on : 2019-08-28 11:21:27
License:

Loading...
Export citation

Choose an application

Abstract

What are the causes and consequences of species diversity in forested ecosystems, and how is this species diversity being affected by rapid environmental and climatic change, movement of invertebrate and vertebrate herbivores into new biogeographic regions, and expanding human populations and associated shifts in land-use patterns? In this book, we explore these questions for assemblages of forest trees, shrubs, and understory herbs at spatial scales ranging from small plots to large forest dynamics plots, at temporal scales ranging from seasons to centuries, in both temperate and tropical regions, and across rural-to-urban gradients in land use.

Keywords

Ericaceae --- variation partitioning --- climate --- species-area relationship --- mid-domain effect --- spatial patterns --- individual species-area relationship --- tropical evergreen mixed forest --- competition and facilitation --- Vietnam --- microarthropod --- diversity --- seasonal variations --- stand development --- biodiversity --- climate --- human footprint --- productivity --- topography --- USDA Forest Service --- herbaceous layer --- excess nitrogen --- canopy structure --- temperate forests --- Fagus sylvatica --- Pinus sylvestris --- Picea abies --- Pseudotsuga menziesii --- forest management --- tree species diversity --- forest conversion --- gamma diversity --- landscape scale --- Biodiversity Exploratories --- climate change --- temperature --- precipitation --- Hubbard Brook --- elevational shifts --- mountains --- species diversity --- structural complexity --- legacies --- wind damage --- uprooting --- trunk breakage --- understory plant communities --- natural disturbance-based silviculture --- forest management --- species conservation --- northern hardwood forests --- abundance --- Bray-Curtis --- codispersion analysis --- Smithsonian ForestGEO --- Shannon diversity --- Simpson diversity --- spatial analysis --- species richness --- windthrow --- tornado --- tree species --- disturbance severity --- tree regeneration --- salvaging --- salvage logging --- succession --- Climatic change --- species diversity --- potential habitats --- China --- Maxent --- Salicaceae --- herbaceous perennial species --- household respondents --- questionnaire survey --- species richness --- woody species --- temperate forests --- species richness --- assemblage lineage diversity --- phylogenetic diversity --- evolutionary diversity --- United States --- trees --- TILD

Listing 1 - 10 of 27 << page
of 3
>>
Sort by
Narrow your search