Temperate Deciduous Forest
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Arachnozoogeographical Analysis of the Boundary Between Eastern Palearctic and Indomalayan Region
Historia naturalis bulgarica, 23: 5-36, 2016 Arachnozoogeographical analysis of the boundary between Eastern Palearctic and Indomalayan Region Petar Beron Abstract: This study aims to test how the distribution of various orders of Arachnida follows the classical subdivision of Asia and where the transitional zone between the Eastern Palearctic (Holarctic Kingdom) and the Indomalayan Region (Paleotropic) is situated. This boundary includes Thar Desert, Karakorum, Himalaya, a band in Central China, the line north of Taiwan and the Ryukyu Islands. The conclusion is that most families of Arachnida (90), excluding most of the representatives of Acari, are common for the Palearctic and Indomalayan Regions. There are no endemic orders or suborders in any of them. Regarding Arach- nida, their distribution does not justify the sharp difference between the two Kingdoms (Paleotropical and Holarctic) in Eastern Eurasia. The transitional zone (Sino-Japanese Realm) of Holt et al. (2013) also does not satisfy the criteria for outlining an area on the same footing as the Palearctic and Indomalayan Realms. Key words: Palearctic, Indomalayan, Arachnozoogeography, Arachnida According to the classical subdivision the region’s high mountains and plateaus. In southern Indomalayan Region is formed from the regions in Asia the boundary of the Palearctic is largely alti- Asia that are south of the Himalaya, and a zone in tudinal. The foothills of the Himalaya with average China. North of this “line” is the Palearctic (consist- altitude between about 2000 – 2500 m a.s.l. form the ing og different subregions). This “line” (transitional boundary between the Palearctic and Indomalaya zone) is separating two kingdoms, therefore the dif- Ecoregions. -
Tropical Deciduous Forests and Savannas
2/1/17 Tropical Coastal Communities Relationships to other tropical forest systems — specialized swamp forests: Tropical Coastal Forests Mangrove and beach forests § confined to tropical and & subtropical zones at the interface Tropical Deciduous Forests of terrestrial and saltwater Mangrove Forests Mangrove Forests § confined to tropical and subtropical § stilt roots - support ocean tidal zones § water temperature must exceed 75° F or 24° C in warmest month § unique adaptations to harsh Queensland, Australia environment - convergent Rhizophora mangle - red mangrove Moluccas Venezuela 1 2/1/17 Mangrove Forests Mangrove Forests § stilt roots - support § stilt roots - support § pneumatophores - erect roots for § pneumatophores - erect roots for O2 exchange O2 exchange § salt glands - excretion § salt glands - excretion § viviparous seedlings Rhizophora mangle - red mangrove Rhizophora mangle - red mangrove Xylocarpus (Meliaceae) & Rhizophora Mangrove Forests Mangrove Forests § 80 species in 30 genera (20 § 80 species in 30 genera (20 families) families) § 60 species OW& 20 NW § 60 species OW& 20 NW (Rhizophoraceae - red mangrove - Avicennia - black mangrove; inner Avicennia nitida (black mangrove, most common in Neotropics) boundary of red mangrove, better Acanthaceae) drained Rhizophora mangle - red mangrove Xylocarpus (Meliaceae) & Rhizophora 2 2/1/17 Mangrove Forests § 80 species in 30 genera (20 families) § 60 species OW& 20 NW Four mangrove families in one Neotropical mangrove community Avicennia - Rhizophora - Acanthanceae Rhizophoraceae -
Understanding the Causes of Bush Encroachment in Africa: the Key to Effective Management of Savanna Grasslands
Tropical Grasslands – Forrajes Tropicales (2013) Volume 1, 215−219 Understanding the causes of bush encroachment in Africa: The key to effective management of savanna grasslands OLAOTSWE E. KGOSIKOMA1 AND KABO MOGOTSI2 1Department of Agricultural Research, Ministry of Agriculture, Gaborone, Botswana. www.moa.gov.bw 2Department of Agricultural Research, Ministry of Agriculture, Francistown, Botswana. www.moa.gov.bw Keywords: Rangeland degradation, fire, indigenous ecological knowledge, livestock grazing, rainfall variability. Abstract The increase in biomass and abundance of woody plant species, often thorny or unpalatable, coupled with the suppres- sion of herbaceous plant cover, is a widely recognized form of rangeland degradation. Bush encroachment therefore has the potential to compromise rural livelihoods in Africa, as many depend on the natural resource base. The causes of bush encroachment are not without debate, but fire, herbivory, nutrient availability and rainfall patterns have been shown to be the key determinants of savanna vegetation structure and composition. In this paper, these determinants are discussed, with particular reference to arid and semi-arid environments of Africa. To improve our current under- standing of causes of bush encroachment, an integrated approach, involving ecological and indigenous knowledge systems, is proposed. Only through our knowledge of causes of bush encroachment, both direct and indirect, can better livelihood adjustments be made, or control measures and restoration of savanna ecosystem functioning be realized. Resumen Una forma ampliamente reconocida de degradación de pasturas es el incremento de la abundancia de especies de plan- tas leñosas, a menudo espinosas y no palatables, y de su biomasa, conjuntamente con la pérdida de plantas herbáceas. En África, la invasión por arbustos puede comprometer el sistema de vida rural ya que muchas personas dependen de los recursos naturales básicos. -
Russia's Boreal Forests
Forest Area Key Facts & Carbon Emissions Russia’s Boreal Forests from Deforestation Forest location and brief description Russia is home to more than one-fifth of the world’s forest areas (approximately 763.5 million hectares). The Russian landscape is highly diverse, including polar deserts, arctic and sub-arctic tundra, boreal and semi-tundra larch forests, boreal and temperate coniferous forests, temperate broadleaf and mixed forests, forest-steppe and steppe (temperate grasslands, savannahs, and shrub-lands), semi-deserts and deserts. Russian boreal forests (known in Russia as the taiga) represent the largest forested region on Earth (approximately 12 million km2), larger than the Amazon. These forests have relatively few tree species, and are composed mainly of birch, pine, spruce, fir, with some deciduous species. Mixed in among the forests are bogs, fens, marshes, shallow lakes, rivers and wetlands, which hold vast amounts of water. They contain more than 55 per cent of the world’s conifers, and 11 per cent of the world’s biomass. Unique qualities of forest area Russia’s boreal region includes several important Global 200 ecoregions - a science-based global ranking of the Earth’s most biologically outstanding habitats. Among these is the Eastern-Siberian Taiga, which contains the largest expanse of untouched boreal forest in the world. Russia’s largest populations of brown bear, moose, wolf, red fox, reindeer, and wolverine can be found in this region. Bird species include: the Golden eagle, Black- billed capercaillie, Siberian Spruce grouse, Siberian accentor, Great gray owl, and Naumann’s thrush. Russia’s forests are also home to the Siberian tiger and Far Eastern leopard. -
North Yukon Planning Region Biophysical Landscape Classification
North Yukon Planning Region Biophysical Landscape Classification (Landscape Types): Overview, Methods and Reference Images T F DRA Updated October 20, 2005 Project Team • John Meikle, Yukon Environment • Marcus Waterreus, Yukon Environment • Shawn Francis, NYPC • Jeff Hamm, YLUPC • Nancy Steffen, GLL • Biophysical working group – initial terrain and bioclimate concepts STUDY AREA • North Yukon Planning Region (55,000 km2) • Taiga Cordillera Ecozone • 6 Ecoregions: Eagle Plains, Old Crow Flats, Old Crow Basin, North Ogilvie Mountains, Davidson Mountains, Richardson Mountains • Basin, Plateau and Mountain Landscapes STUDY AREA Physiographic Basin Units and Ecodistricts Mountain Basin Plateau Old Crow Plateau Mountain Mountain MAPPING CONCEPTS • Mountain landscapes organized by elevation (Bioclimate Zone); Plateau landscapes organized by relative moisture gradient (Ecosite) • Beyond major Basin landscapes, surficial materials not controlling factor (unglaciated) • Mapping has regional applications (1:100K- 1:250K) • Available data sources are major determinant of potential methods DATA INPUTS • EOSD (25m LANDSAT Extent of 250K Regional Terrain supervised classification) Map (raster) • 90m DEM (raster) • 250K regional terrain map North Yukon Planning Region (vector) Peel Watershed …..due to importance of Planning Region EOSD and DEM, raster mapping approach was chosen METHODS • Field reconnaissance; develop concepts • Create regional terrain and Bioclimate Zone map through manual interpretation (refine Ecoregions and Ecodistricts to 250K) -
Responses of Plant Communities to Grazing in the Southwestern United States Department of Agriculture United States Forest Service
Responses of Plant Communities to Grazing in the Southwestern United States Department of Agriculture United States Forest Service Rocky Mountain Research Station Daniel G. Milchunas General Technical Report RMRS-GTR-169 April 2006 Milchunas, Daniel G. 2006. Responses of plant communities to grazing in the southwestern United States. Gen. Tech. Rep. RMRS-GTR-169. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 126 p. Abstract Grazing by wild and domestic mammals can have small to large effects on plant communities, depend- ing on characteristics of the particular community and of the type and intensity of grazing. The broad objective of this report was to extensively review literature on the effects of grazing on 25 plant commu- nities of the southwestern U.S. in terms of plant species composition, aboveground primary productiv- ity, and root and soil attributes. Livestock grazing management and grazing systems are assessed, as are effects of small and large native mammals and feral species, when data are available. Emphasis is placed on the evolutionary history of grazing and productivity of the particular communities as deter- minants of response. After reviewing available studies for each community type, we compare changes in species composition with grazing among community types. Comparisons are also made between southwestern communities with a relatively short history of grazing and communities of the adjacent Great Plains with a long evolutionary history of grazing. Evidence for grazing as a factor in shifts from grasslands to shrublands is considered. An appendix outlines a new community classification system, which is followed in describing grazing impacts in prior sections. -
Taiga Plains
ECOLOGICAL REGIONS OF THE NORTHWEST TERRITORIES Taiga Plains Ecosystem Classification Group Department of Environment and Natural Resources Government of the Northwest Territories Revised 2009 ECOLOGICAL REGIONS OF THE NORTHWEST TERRITORIES TAIGA PLAINS This report may be cited as: Ecosystem Classification Group. 2007 (rev. 2009). Ecological Regions of the Northwest Territories – Taiga Plains. Department of Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, NT, Canada. viii + 173 pp. + folded insert map. ISBN 0-7708-0161-7 Web Site: http://www.enr.gov.nt.ca/index.html For more information contact: Department of Environment and Natural Resources P.O. Box 1320 Yellowknife, NT X1A 2L9 Phone: (867) 920-8064 Fax: (867) 873-0293 About the cover: The small photographs in the inset boxes are enlarged with captions on pages 22 (Taiga Plains High Subarctic (HS) Ecoregion), 52 (Taiga Plains Low Subarctic (LS) Ecoregion), 82 (Taiga Plains High Boreal (HB) Ecoregion), and 96 (Taiga Plains Mid-Boreal (MB) Ecoregion). Aerial photographs: Dave Downing (Timberline Natural Resource Group). Ground photographs and photograph of cloudberry: Bob Decker (Government of the Northwest Territories). Other plant photographs: Christian Bucher. Members of the Ecosystem Classification Group Dave Downing Ecologist, Timberline Natural Resource Group, Edmonton, Alberta. Bob Decker Forest Ecologist, Forest Management Division, Department of Environment and Natural Resources, Government of the Northwest Territories, Hay River, Northwest Territories. Bas Oosenbrug Habitat Conservation Biologist, Wildlife Division, Department of Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, Northwest Territories. Charles Tarnocai Research Scientist, Agriculture and Agri-Food Canada, Ottawa, Ontario. Tom Chowns Environmental Consultant, Powassan, Ontario. Chris Hampel Geographic Information System Specialist/Resource Analyst, Timberline Natural Resource Group, Edmonton, Alberta. -
Mapping of West Siberian Taiga Wetland Complexes Using Landsat Imagery: Implications for Methane Emissions
Biogeosciences, 13, 4615–4626, 2016 www.biogeosciences.net/13/4615/2016/ doi:10.5194/bg-13-4615-2016 © Author(s) 2016. CC Attribution 3.0 License. Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions Irina Evgenievna Terentieva1,*, Mikhail Vladimirovich Glagolev1,3,4,5, Elena Dmitrievna Lapshina3, Alexandr Faritovich Sabrekov2, and Shamil Maksyutov6 1Laboratory of Computational Geophysics, Tomsk State University, Tomsk, 643050, Russia 2BIO-GEO-CLIM Laboratory, Tomsk State University, Tomsk, 643050, Russia 3UNESCO Department ’Environmental Dynamics and Global Climate Changes’, Yugra State University, Khanty-Mansiysk, 628012, Russia 4Institute of Forest Science Russian Academy of Sciences, Uspenskoe, 143030, Russia 5Faculty of Soil Science, Moscow State University, Moscow, 119992, Russia 6Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan *previously published under the name I. E. Kleptsova Correspondence to: Irina Evgenievna Terentieva ([email protected]) Received: 5 November 2015 – Published in Biogeosciences Discuss.: 16 December 2015 Revised: 18 July 2016 – Accepted: 21 July 2016 – Published: 16 August 2016 Abstract. High-latitude wetlands are important for under- (5 %), patterned fens (4 %), and swamps (4 %). Various olig- standing climate change risks because these environments otrophic environments are dominant among wetland ecosys- sink carbon dioxide and emit methane. However, fine-scale tems, while poor fens cover only 14 % of the area. Because of heterogeneity of wetland landscapes poses a serious chal- the significant change in the wetland ecosystem coverage in lenge when generating regional-scale estimates of green- comparison to previous studies, a considerable reevaluation house gas fluxes from point observations. In order to reduce of the total CH4 emissions from the entire region is expected. -
Quantifying the Structure of the Woody Element in Savannahs Using Integrated Optical and Synthetic Aperture Radar (SAR) Approach
Quantifying the structure of the woody element in Savannahs using integrated optical and Synthetic Aperture Radar (SAR) approach: a stepping stone towards country wide monitoring in South Africa by Laven Naidoo Submitted in partial fulfilment of the requirements for the degree DOCTOR OF PHILOSOPHY (Geoinformatics) in the Faculty of Natural and Agricultural Sciences, University of Pretoria Supervisors: Dr Renaud Mathieu (CSIR & University of Pretoria) Dr Konrad Wessels (CSIR & University of Pretoria) Date: 30 September 2017 1 Table of Contents Table of Contents .................................................................................................................................... 2 List of Figures .......................................................................................................................................... 6 List of Tables ........................................................................................................................................... 9 Dedications ........................................................................................................................................... 11 Acknowledgements ............................................................................................................................... 12 Plagiarism Declaration .......................................................................................................................... 13 List of Publications ............................................................................................................................... -
Mangrove Reserves in Five West African Countries
MANGROVE RESERVES IN FIVE WEST AFRICAN COUNTRIES BACKGROUND BRIEF Mangrove ecosystems are crucial for maintaining and sequestering carbon stocks, and preserving biodiversity. They can provide sustainable natural resources and protection from natural disasters to the people living in and around them. The Forest Carbon, Markets and Communities program is organizing a workshop on REDD+ and Mangroves in West Africa to be held in Ghana. This document provides background on protected areas containing significant mangrove stands within the five focal countries (Cote d’Ivoire, Ghana, Guinea, Liberia, and Sierra Leone) for the workshop. These five countries lie contiguously on the coast of West Africa. There are mangrove stands in all five countries (figure 1), but these stands have declined since 1980 (table 1). Figure 1: Extent of Mangrove Forests in West Africa (Giri et al. 2011a) This document focuses on protected areas that contain significant mangroves stands, and are listed on the World Database on Protected Areas. This database includes designated UNESCO-MAB Biosphere Reserves, World Heritage Sites, Ramsar Sites, and IUCN Protected Areas. Other legal designations for the sites discussed are given in parentheses after the site name. All sites discussed are Ramsar Sites, that is, they are included on The Ramsar List of Wetlands of International Importance. This regularly updated list was originally compiled as a result of the Convention on Wetlands, signed in Ramsar, Iran in 1971, in which member countries committed to “stem the progressive encroachment on and loss of wetlands”(The Convention on Wetlands 1971). The list of areas described in this document is not exhaustive, but is intended to give readers an overview of existing mangrove reserves within the countries. -
Distribution Mapping of World Grassland Types A
Journal of Biogeography (J. Biogeogr.) (2014) SYNTHESIS Distribution mapping of world grassland types A. P. Dixon1*, D. Faber-Langendoen2, C. Josse2, J. Morrison1 and C. J. Loucks1 1World Wildlife Fund – United States, 1250 ABSTRACT 24th Street NW, Washington, DC 20037, Aim National and international policy frameworks, such as the European USA, 2NatureServe, 4600 N. Fairfax Drive, Union’s Renewable Energy Directive, increasingly seek to conserve and refer- 7th Floor, Arlington, VA 22203, USA ence ‘highly biodiverse grasslands’. However, to date there is no systematic glo- bal characterization and distribution map for grassland types. To address this gap, we first propose a systematic definition of grassland. We then integrate International Vegetation Classification (IVC) grassland types with the map of Terrestrial Ecoregions of the World (TEOW). Location Global. Methods We developed a broad definition of grassland as a distinct biotic and ecological unit, noting its similarity to savanna and distinguishing it from woodland and wetland. A grassland is defined as a non-wetland type with at least 10% vegetation cover, dominated or co-dominated by graminoid and forb growth forms, and where the trees form a single-layer canopy with either less than 10% cover and 5 m height (temperate) or less than 40% cover and 8 m height (tropical). We used the IVC division level to classify grasslands into major regional types. We developed an ecologically meaningful spatial cata- logue of IVC grassland types by listing IVC grassland formations and divisions where grassland currently occupies, or historically occupied, at least 10% of an ecoregion in the TEOW framework. Results We created a global biogeographical characterization of the Earth’s grassland types, describing approximately 75% of IVC grassland divisions with ecoregions. -
Arborvitae Special Issue
arborvitæ Supplement January 1998 This Supplement has been edited by Nigel Dudley and Sue Stolton of Equilibrium Boreal forests: policy Consultants. Managing editors Jean-Paul Jeanrenaud of WWF International and Bill Jackson of IUCN, the World Conservation Union. Design by WWF-UK Design Team. challenges for the future Reprints: Permission is granted to reproduce news stories from this supplement providing by Nigel Dudley, Don Gilmour and Jean-Paul Jeanrenaud full credit is given. The editors and authors are responsible for their own articles. The opinions do not necessarily always express the views of WWF or IUCN. M Wägeus, WWF Pechoro Illych As IUCN launches an important new temperate and boreal forest This paper has been compiled with the active programme, this arborvitæ special gives an outline of key conservation participation of many issues in boreal forests. people within IUCN and WWF, including Andrew The boreal forests of the far north make up about a third of the world's Deutz, Bill Jackson, Harri Karjalainen, Andrei total forest area, much of it still virtual wilderness, yet they receive Laletin, Anders Lindhe, only a fraction of the attention given to tropical and temperate forests. Vladimir Moshkalo and Despite their vast size, boreal forests now face increasing exploitation Per Rosenberg. and disturbance, with threats to both the total area of forest and to WWF International Avenue du Mont-Blanc the quality of the forests that remain. 1196 Gland, Switzerland Tel: +41 22 364 91 11 Fax: +41 22 364 53 58 The following paper introduces the ecology and status of boreal forests, summarises some of the main threats, and proposes key IUCN, 28 rue de Mauverney 1196 Gland, Switzerland elements in a conservation strategy.