Sclerophyll Forests and Woodlands
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Melaleuca Argentea W.Fitzg
Australian Tropical Rainforest Plants - Online edition Melaleuca argentea W.Fitzg. Family: Myrtaceae Fitzgerald, W.V. (1918) Journal and Proceedings of the Royal Society of Western Australia 3: 187. Type: Isdell, Charnley, Fitzroy, Ord, Denham Rivers, etc. (W.V.F.). Common name: Paperbark, Silver; Paperbark, Silver-leaved; Silver Leaf Cadjeput; Silver Paperbark; Silver-leaved Paperbark; Silvery Weeping Tea Tree Stem Usually grows into a medium-sized tree and is usually found along creeks and watercourses. Bark papery. Leaves Leaf blades pendulous, about 7-12 x 0.6-1.5 cm, margins thickened somewhat vein-like, petioles Leaves and Flowers. © B. Gray about 0.3-1 cm long. Oil dots quite numerous, not enclosed in reticulations. Venation longitudinal and parallel with about 3-5 veins more prominent than the rest. Younger leaf blades densely clothed in fine prostrate silvery hairs. Leaves aromatic when crushed. Flowers Spikes about 7-8 mm long. Individual flowers about 10-15 mm diam. Calyx lobes about 0.7-1.1 mm long, apex obtuse. Petals about 2.3-3.7 x 1.6-3 mm with about 6 or 7 slightly elongated oil dots. Stamens about 25-35, united in five bundles. Filaments about 8-20 mm long. Anthers about 0.6-0.9 mm long with a gland on the back. Style about 12-22 mm long. Base of the style surrounded by a nectar-producing disk. Fruit Scale bar 10mm. © CSIRO Fruits shortly cylindrical, about 3-4 x 3-4 mm, valves enclosed. Seeds about 1 mm long, numerous, mixed with chaff. Embryo about 1 mm long, cotyledons about 0.5 mm long, folded down over the radicle. -
Seedling Responses of Three Australian Tree Species to Toxic Concentrations of Zinc in Solution Culture
Plant and Soil 235: 151–158, 2001. 151 © 2001 Kluwer Academic Publishers. Printed in the Netherlands. Seedling responses of three Australian tree species to toxic concentrations of zinc in solution culture S. M. Reichman1,C.J.Asher2, D. R. Mulligan1,3 & N. W. Menzies2 1Centre for Mined Land Rehabilitation, The University of Queensland, Brisbane, 4072 Australia. 2School of Land and Food Sciences, The University of Queensland, Brisbane, 4072 Australia. 3Corresponding author∗ Received 12 July 2000. Accepted in revised form 28 May 2001 Key words: Acacia holosericea, critical concentration, Eucalyptus camaldulensis, Melaleuca leucadendra, solution culture, zinc toxicity Abstract A frequently desired outcome when rehabilitating Zn toxic sites in Australia is to establish a self-sustaining native ecosystem. Hence, it is important to understand the tolerance of Australian native plants to high concentrations of Zn. Very little is known about the responses of Australian native plants, and trees in particular, to toxic concentra- tions of Zn. Acacia holosericea, Eucalyptus camaldulensis and Melaleuca leucadendra plants were grown in dilute solution culture for 10 weeks. The seedlings (42 days old) were exposed to six Zn treatments viz., 0.5, 5, 10, 25, 50 and 100 µM. The order of tolerance to toxic concentrations of Zn was E. camaldulensis> A. holosericea> M. leucadendra, the critical external concentrations being approximately 20, 12 and 1.5 µM, respectively. Tissue Zn concentrations increased as solution Zn increased for all species. Root tissue concentrations were higher than shoot tissue concentrations at all solution Zn concentrations. The critical tissue Zn concentrations were approximately 85 and 110 µgg−1 DM for M. -
Their Botany, Essential Oils and Uses 6.86 MB
MELALEUCAS THEIR BOTANY, ESSENTIAL OILS AND USES Joseph J. Brophy, Lyndley A. Craven and John C. Doran MELALEUCAS THEIR BOTANY, ESSENTIAL OILS AND USES Joseph J. Brophy School of Chemistry, University of New South Wales Lyndley A. Craven Australian National Herbarium, CSIRO Plant Industry John C. Doran Australian Tree Seed Centre, CSIRO Plant Industry 2013 The Australian Centre for International Agricultural Research (ACIAR) was established in June 1982 by an Act of the Australian Parliament. ACIAR operates as part of Australia's international development cooperation program, with a mission to achieve more productive and sustainable agricultural systems, for the benefit of developing countries and Australia. It commissions collaborative research between Australian and developing-country researchers in areas where Australia has special research competence. It also administers Australia's contribution to the International Agricultural Research Centres. Where trade names are used this constitutes neither endorsement of nor discrimination against any product by ACIAR. ACIAR MONOGRAPH SERIES This series contains the results of original research supported by ACIAR, or material deemed relevant to ACIAR’s research and development objectives. The series is distributed internationally, with an emphasis on developing countries. © Australian Centre for International Agricultural Research (ACIAR) 2013 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from ACIAR, GPO Box 1571, Canberra ACT 2601, Australia, [email protected] Brophy J.J., Craven L.A. and Doran J.C. 2013. Melaleucas: their botany, essential oils and uses. ACIAR Monograph No. 156. Australian Centre for International Agricultural Research: Canberra. -
The Coastal Scrub and Chaparral Bird Conservation Plan
The Coastal Scrub and Chaparral Bird Conservation Plan A Strategy for Protecting and Managing Coastal Scrub and Chaparral Habitats and Associated Birds in California A Project of California Partners in Flight and PRBO Conservation Science The Coastal Scrub and Chaparral Bird Conservation Plan A Strategy for Protecting and Managing Coastal Scrub and Chaparral Habitats and Associated Birds in California Version 2.0 2004 Conservation Plan Authors Grant Ballard, PRBO Conservation Science Mary K. Chase, PRBO Conservation Science Tom Gardali, PRBO Conservation Science Geoffrey R. Geupel, PRBO Conservation Science Tonya Haff, PRBO Conservation Science (Currently at Museum of Natural History Collections, Environmental Studies Dept., University of CA) Aaron Holmes, PRBO Conservation Science Diana Humple, PRBO Conservation Science John C. Lovio, Naval Facilities Engineering Command, U.S. Navy (Currently at TAIC, San Diego) Mike Lynes, PRBO Conservation Science (Currently at Hastings University) Sandy Scoggin, PRBO Conservation Science (Currently at San Francisco Bay Joint Venture) Christopher Solek, Cal Poly Ponoma (Currently at UC Berkeley) Diana Stralberg, PRBO Conservation Science Species Account Authors Completed Accounts Mountain Quail - Kirsten Winter, Cleveland National Forest. Greater Roadrunner - Pete Famolaro, Sweetwater Authority Water District. Coastal Cactus Wren - Laszlo Szijj and Chris Solek, Cal Poly Pomona. Wrentit - Geoff Geupel, Grant Ballard, and Mary K. Chase, PRBO Conservation Science. Gray Vireo - Kirsten Winter, Cleveland National Forest. Black-chinned Sparrow - Kirsten Winter, Cleveland National Forest. Costa's Hummingbird (coastal) - Kirsten Winter, Cleveland National Forest. Sage Sparrow - Barbara A. Carlson, UC-Riverside Reserve System, and Mary K. Chase. California Gnatcatcher - Patrick Mock, URS Consultants (San Diego). Accounts in Progress Rufous-crowned Sparrow - Scott Morrison, The Nature Conservancy (San Diego). -
Australia Lacks Stem Succulents but Is It Depauperate in Plants With
Available online at www.sciencedirect.com ScienceDirect Australia lacks stem succulents but is it depauperate in plants with crassulacean acid metabolism (CAM)? 1,2 3 3 Joseph AM Holtum , Lillian P Hancock , Erika J Edwards , 4 5 6 Michael D Crisp , Darren M Crayn , Rowan Sage and 2 Klaus Winter In the flora of Australia, the driest vegetated continent, [1,2,3]. Crassulacean acid metabolism (CAM), a water- crassulacean acid metabolism (CAM), the most water-use use efficient form of photosynthesis typically associated efficient form of photosynthesis, is documented in only 0.6% of with leaf and stem succulence, also appears poorly repre- native species. Most are epiphytes and only seven terrestrial. sented in Australia. If 6% of vascular plants worldwide However, much of Australia is unsurveyed, and carbon isotope exhibit CAM [4], Australia should host 1300 CAM signature, commonly used to assess photosynthetic pathway species [5]. At present CAM has been documented in diversity, does not distinguish between plants with low-levels of only 120 named species (Table 1). Most are epiphytes, a CAM and C3 plants. We provide the first census of CAM for the mere seven are terrestrial. Australian flora and suggest that the real frequency of CAM in the flora is double that currently known, with the number of Ellenberg [2] suggested that rainfall in arid Australia is too terrestrial CAM species probably 10-fold greater. Still unpredictable to support the massive water-storing suc- unresolved is the question why the large stem-succulent life — culent life-form found amongst cacti, agaves and form is absent from the native Australian flora even though euphorbs. -
Flying-Fox Dispersal Feasibility Study Cassia Wildlife Corridor, Coolum Beach and Tepequar Drive Roost, Maroochydore
Sunshine Coast Council Flying-Fox Dispersal Feasibility Study Cassia Wildlife Corridor, Coolum Beach and Tepequar Drive Roost, Maroochydore. Environmental Operations May 2013 0 | Page Table of Contents Introduction ................................................................................................................................ 2 Purpose ............................................................................................................................................... 2 Flying-fox Mitigation Strategies .......................................................................................................... 2 State and Federal Permits ................................................................................................................... 4 Roost Management Plan .................................................................................................................... 4 Risk ...................................................................................................................................................... 5 Flying-fox Dispersal Success in Australia ............................................................................................. 6 References .......................................................................................................................................... 7 Cassia Wildlife Corridor ................................................................................................................ 8 Background ........................................................................................................................................ -
COST COMPARISON of Melaleuca Treatment Methods by Francois B
COST COMPARISON OF Melaleuca Treatment Methods by Francois B. Laroche and Jennifer McKim Introduction Melaleuca (Melaleuca quinquenervia) is an exotic invasive plant species that was introduced to South Florida in the late 19th century Melaleuca seeds were offered for sale in Florida in 1887 (Serbesoff-King, 2003), and the tree has been distributed throughout South Florida since that time. Around 1937, during the historic rush to drain swamps in the state of Florida, seeds from the native Australian tree were disbursed over the eastern portion of South Florida’s Everglades. The tree was believed to be beneficial for drying wetlands for farming and development. In 1941, the United States Army Corps of Engineers planted M. quinquenervia on levees south of Lake Okeechobee for erosion control (Bramlage, 2000). Melaleuca was widely planted, and recommended as late as 1970, as “one of Florida’s best landscape trees” (Watkins, 1970). Melaleuca grows extremely fast in a variety of conditions. Wetlands, seasonal wetlands, and well- drained uplands offer excellent growing conditions for the tree. Melaleuca is particularly a concern for South Florida because it is highly invasive and has the ability to adapt and flourish in a variety of ecological conditions. The high production of viable seeds helps this species to establish and disperse and makes control a difficult challenge. Regardless of the method of removal, millions of viable seeds are left behind to re-establish melaleuca populations following any control initiatives. Current methods of control used for melaleuca include integrated strategies of herbicide application, limited mechanical means, and biological controls (Laroche, 1998). Control with herbicides is the most economical and most researched method. -
7. Shrubland and Young Forest Habitat Management
7. SHRUBLAND AND YOUNG FOREST HABITAT MANAGEMENT hrublands” and “Young Forest” are terms that apply to areas Shrubland habitat and that are transitioning to mature forest and are dominated by young forest differ in “Sseedlings, saplings, and shrubs with interspersed grasses and forbs (herbaceous plants). While some sites such as wetlands, sandy sites vegetation types and and ledge areas can support a relatively stable shrub cover, most shrub communities in the northeast are successional and change rapidly to food and cover they mature forest if left unmanaged. Shrub and young forest habitats in Vermont provide important habitat provide, as well as functions for a variety of wildlife including shrubland birds, butterflies and bees, black bear, deer, moose, snowshoe hare, bobcat, as well as a where and how they variety of reptiles and amphibians. Many shrubland species are in decline due to loss of habitat. Shrubland bird species in Vermont include common are maintained on the species such as chestnut-sided warbler, white-throated sparrow, ruffed grouse, Eastern towhee, American woodcock, brown thrasher, Nashville landscape. warbler, and rarer species such as prairie warbler and golden-winged warbler. These habitat types are used by 29 Vermont Species of Greatest Conservation Need. While small areas of shrub and young forest habitat can be important to some wildlife, managing large patches of 5 acres or more provides much greater benefit to the wildlife that rely on the associated habitat conditions to meet their life requirements. Birds such as the chestnut- sided warbler will use smaller areas of young forest, but less common species such as golden-winged warbler require areas of 25 acres or more. -
Grassland to Shrubland State Transitions Enhance Carbon Sequestration in the Northern Chihuahuan Desert
Global Change Biology Global Change Biology (2015) 21, 1226–1235, doi: 10.1111/gcb.12743 Grassland to shrubland state transitions enhance carbon sequestration in the northern Chihuahuan Desert M. D. PETRIE1 ,S.L.COLLINS1 ,A.M.SWANN2 ,P.L.FORD3 andM.E. LITVAK1 1Department of Biology, University of New Mexico, Albuquerque, New Mexico, USA, 2Department of Biology, Sevilleta LTER, University of New Mexico, Albuquerque, New Mexico, USA, 3USDA Forest Service, Rocky Mountain Research Station, Albuquerque, New Mexico, USA Abstract The replacement of native C4-dominated grassland by C3-dominated shrubland is considered an ecological state tran- sition where different ecological communities can exist under similar environmental conditions. These state transi- tions are occurring globally, and may be exacerbated by climate change. One consequence of the global increase in woody vegetation may be enhanced ecosystem carbon sequestration, although the responses of arid and semiarid ecosystems may be highly variable. During a drier than average period from 2007 to 2011 in the northern Chihuahuan À2 À1 Desert, we found established shrubland to sequester 49 g C m yr on average, while nearby native C4 grassland À À was a net source of 31 g C m 2 yr 1 over this same period. Differences in C exchange between these ecosystems were pronounced – grassland had similar productivity compared to shrubland but experienced higher C efflux via ecosys- tem respiration, while shrubland was a consistent C sink because of a longer growing season and lower ecosystem respiration. At daily timescales, rates of carbon exchange were more sensitive to soil moisture variation in grassland than shrubland, such that grassland had a net uptake of C when wet but lost C when dry. -
A Psyllid, Boreioglycaspis Melaleucae Moore (Insecta: Hemiptera: Psyllidae)1 Susan A
EENY300 A Psyllid, Boreioglycaspis melaleucae Moore (Insecta: Hemiptera: Psyllidae)1 Susan A. Wineriter, Susan E. Halbert and James P. Cuda2 Introduction Distribution The introduced tree Melaleuca quinquenervia (Cav.) B. melaleucae has been collected from all states in its S.T. Blake (Myrtaceae), known as paperbark, punktree, native Australia except South Australia (Burkhardt 1991). or melaleuca, is an aggressive invader of many South Specimens released in Florida originated from southeastern Florida ecosystems, including the Everglades. Melaleuca is Queensland. As of October 2002, the melaleuca psyllid had considered a pest because it displaces native vegetation and been released in five Florida counties—Broward, Collier, degrades wildlife habitat; it also creates fire hazards and can Lee, Miami-Dade, and Palm Beach—and is known to have cause human health problems (Rayamajhi et al. 2002). The established in all counties except Palm Beach. It eventually USDA/ARS with federal and state permission introduced spread naturally to all 22 central and south Florida counties the psyllid Boreioglycaspis melaleucae (Figure 1) into where melaleuca infestations occur. Broward County, Florida, in February 2002 as a potential biocontrol agent of melaleuca. Description Adults Boreioglycaspsis adults (Figure 2) are small, about 3 mm long, and inconspicuous, pale yellow-orange to white in color with gray to black markings. The tips of the antennae are gray to black, and the wings are transparent with yellow veins. The compound eyes are usually pale green with a distinctive dark spot within, but various shades of red have been observed in the laboratory; its three ocelli are bright orange, the dorsal two being the most obvious. -
Conservation Issues: California Chaparral
Author's personal copy Conservation Issues: California Chaparral RW Halsey, California Chaparral Institute, Escondido, CA, United States JE Keeley, U.S. Geological Survey, Three Rivers, CA, United States ã 2016 Elsevier Inc. All rights reserved. What Is Chaparral? 1 California Chaparral Biodiversity 1 Chaparral Community Types 1 Measuring Chaparral Biodiversity 4 Diversity Within Individual Plant Taxa 5 Faunal Diversity 5 Influence of Geology 7 Influence of Climate 7 Influence of Fire 8 Impact of Climate Change 10 Preserving Chaparral Biodiversity 10 References 10 What Is Chaparral? Chaparral is a diverse, sclerophyllous shrub-dominated plant community shaped by a Mediterranean-type climate (hot, dry summers and mild, wet winters), a complex mixture of relatively young soils (Specht and Moll, 1983), and large, infrequent, high-intensity fires (30–150 year fire return interval) (Keeley and Zedler, 2009; Keeley et al., 2004; Lombardo et al., 2009). Large expanses of dense chaparral vegetation cover coastal mesas, canyons, foothills, and mountain slopes throughout the California Floristic Province (Figure 1), southward into Baja California, and extending north into the Rogue River Valley of southwest Oregon. Disjunct patches of chaparral can also be found in central and southeastern Arizona and northern Mexico (Keeley, 2000). Along with the four other Mediterranean-type climate regions of the world with similar shrubland vegetation (Central Chile, Mediterranean Basin, South Africa, and southwestern Australia) (Table 1), California has been designated a biodiversity hot spot (Myers et al., 2000). Twenty-five designated locations in all, these hot spots have exceptional concentrations of endemic species that are undergoing exceptional loss of habitat (Myers et al., 2000; Rundel, 2004). -
Species: Melaleuca Quinquenervia
Species: Melaleuca quinquenervia http://www.fs.fed.us/database/feis/plants/tree/melqui/all.html SPECIES: Melaleuca quinquenervia Introductory Distribution and occurrence Botanical and ecological characteristics Fire ecology Fire effects Management considerations References INTRODUCTORY SPECIES: Melaleuca quinquenervia AUTHORSHIP AND CITATION FEIS ABBREVIATION SYNONYMS NRCS PLANT CODE COMMON NAMES TAXONOMY LIFE FORM FEDERAL LEGAL STATUS OTHER STATUS AUTHORSHIP AND CITATION: Munger, Gregory T. 2005. Melaleuca quinquenervia. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/ [2007, September 24]. FEIS ABBREVIATION: MELQUI SYNONYMS: None NRCS PLANT CODE [98]: MEQU COMMON NAMES: melaleuca cajeput paperbark tree punktree TAXONOMY: The currently accepted scientific name for melaleuca is Melaleuca quinquenervia (Cav.) S. T. Blake (Mytraceae) [9,30,31,37,41,42,94,115,116]. Turner and others [96] provide a brief review of the Melaleuca genus in Australia, indicating that all known Melaleuca spp. (up to 250) are native, and all but 9 are endemic. Boland and others [9] suggest there are about 1 of 50 9/24/2007 4:51 PM Species: Melaleuca quinquenervia http://www.fs.fed.us/database/feis/plants/tree/melqui/all.html 150 described species of Melaleuca. The name melaleuca is of Greek origin, meaning "black and white", presumably referring to the white bark that is often charred black by fire (Debenham 1962 as cited in [96]. LIFE FORM: Tree Tree-shrub FEDERAL LEGAL STATUS: Noxious weed [97] OTHER STATUS: Florida Department of Environmental Quality lists melaleuca as a Class I Prohibited aquatic plant ("under no circumstances...permitted for possession, collection, transportation, cultivation, and importation...") [27].