DOCSLIB.ORG

Natural Resources Monitoring Program

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Natural Resources Monitoring Program CHANNEL ISLANDS NATIONAL PARK NATURAL RESOURCES MONITORING PROGRAM 1990 STATUS REPORT Prepared by: Gary E. Davis Research Marine Biologist and William L Halvorson Research Biologist National Park Service Cooperative Parks Study Unit University of California, Davis December 15, 1990 Channel Islands National Park TABLE OF CONTENTS Summary 1 Introduction 1 Project Description 1. Objectives 3 2. Methods 4 3. Costs of Major Tasks 12 Project Productivity 1. Degree of Completion 14 2. Products 14 Plans for Continued Monitoring 18 Servicewide Applicability 18 Literature Cited 19 Tables 1. List of monitoring protocol handbooks 7 2. Summary of population parameters monitored 8 3. List of design studies, with costs, funding sources, & years ... 13 4. Publications from the project 15 6. Summary of monitoring handbook distribution 17 Figures 1. Map of Channel Islands National Park and vicinity 2 2. Step-down plan for natural resources monitoring at Channel Islands National Park, California 6 3. Budget for implementing the designed natural resources monitoring program at Channel Islands National Park .... 22 i Natural Resources Monitoring Program: Status Report Summary A system for monitoring population dynamics of index taxa was developed to define and evaluate ecosystem health in Channel Islands National Park. A Delphi technique with rating criteria was used to select potential index taxa. Nearly 500 species of the 2,000 known from the park were tested for long-term monitoring. Most of the index species are insects (200) or terrestrial plants (156). The remainder are marine invertebrates (41), birds (23), marine algae (16), fishes (15), and mammals and herptiles (12). Population parameters monitored include abundance, age structure, reproductive effort, recruitment, growth rate, mortality rate, and phenology. A local area network (LAN) of microcomputers and a geographic information system (GIS) were established to manage the monitoring 'data. Monitoring protocols were documented in a series of published handbooks and distributed widely as a prototype program. Introduction Channel Islands National Park, created in 1980, is comprised of five islands and over 50,000 ha of coastal waters in the southern California bight (Figure 1). The islands range in size from tiny 260 ha Santa Barbara to the giant 25,000 ha Santa Cruz. The islands support some of the last examples of natural Mediterranean ecosystems in North America. Forests of endemic Santa Cruz Island pine (Pinus remorata), and the rare Torrey pine (P. torreyana), and groves of endemic island oaks (Quercus tomentella), fern-leafed Catalina ironwood (Lyonothamnus floribundus), and Catalina cherry (Prunus lyonii) are interspersed with extensive grasslands and coastal sage communities on the larger islands. The park contains much of what remains of the natural coastal ecosystems of southern California, including a coastal marsh on Santa Rosa and exceptionally pristine tide pools that occupy extensive marine terraces surrounding all of the islands. Prime examples of the northern hemisphere's giant kelp forests (Macrocystispyrifera) are found in the park's coastal waters. The richness of the park's marine environment is further reflected by some of the largest and most diverse sea bird and pinniped rookeries in the world. The park lies on the boundary of two major biogeographical provinces. This boundary is particularly noticeable in the marine environment (Murray et al. 1980, Seapy and Littler 1980). The western-most islands of San Miguel and Santa Rosa are bathed by cold northern waters of the boreal Oregonian province carried south by the California current. Waters surrounding the southeastern islands of Santa Barbara and Anacapa come from the south along the mainland coast and support a warm temperate biota known as the Californian province. Santa Cruz Island sits directly astride this boundary, where plants and animals from both provinces mingle and create a unique assemblage of species capable of adapting to the variable conditions of the transition zone. Park waters harbor biota representative of over 1,600 km (1,000 mi) of the North American coast from Ensenada, Mexico, to San Francisco, California. 1 Channel Islands National Park Prevailing winds and the bathymetry of adjacent basins also greatly influence biological communities in the park. Winter storms bring rain and buffet the islands' northern shores, whereas biota of the southern coasts reflect a dryer, more sheltered environment. The confluence of major oceanic currents and the shape of the continental shelf create a rare phenomenon of persistent upwelling near the park. Nutrient-rich water wells up from the deep sea near Pt. Conception, on the mainland coast to the north, and produces exceptionally productive food webs in the waters around San Miguel and Santa Rosa Islands (Parrish et al. 1981, Dayton and Tegner 1984). 2 Natural Resources Monitoring Program: Status Report Many of the park's exceptional values are a product of isolation from mainland populations. A million years of physical isolation from mainland ecosystems allowed island forms to evolve independently (Vedder and Howell 1980). Physical difficulty of travel to and from the islands protects them even now. Benefits of isolation are particularly apparent with respect to sea birds and marine mammals that once bred in many areas of the mainland coast; today they find sufficient freedom from civilization and human disturbance only on the offshore islands. Channel Islands National Park exists on the edge of a human tide. Nearly 15 million people reside on the adjacent mainland coast. As visitors to the park, these neighbors seek solitude, recreation, and knowledge of their environment, but bring with them threats of crowding, trampling, and .disturbance of fragile and extremely limited island and marine habitats. Air quality in the nearby Los Angeles basin is among the worst on Earth, exceeding federal ozone standards of 120 ppb more than 100 days a year. Strong seasonal easterly Santa Ana winds carry the polluted air offshore into the park (ozone levels on Anacapa Island exceed 200 ppb during these events) threatening sensitive plant communities like the rare Torrey pine forest on Santa Rosa Island. Nearshore currents carry urban runoff and wastewater effluent northwesterly from the metropolitan centers of Los Angeles and Orange counties into park waters. Major offshore petroleum exploration and development in the adjacent Santa Barbara Channel and up-current and up-wind in the nearby Santa Maria Basin brings with it the potential of additional air and water pollution. State managed fishery harvests in the park remove 4,500 to 6,800 tonnes of giant kelp, rock fish, halibut, angel shark, sea urchin, lobster, abalone, and dozens of other fish and shellfish each year. This biomass constitutes about 15% of California's total nearshore harvest, yet the park contains only 3% of the state's coastal waters. This selective removal of target species threatens the stability and integrity of park ecosystems. Hunting and land use practices on the islands have also taken their toll over the past 250 years. Fur hunters virtually eliminated sea otters and drastically reduced seal and sea lion populations in the 18th and 19th centuries. Ranching and farming on the islands in the 19th and 20th centuries introduced alien plants and animals that out-compete, eat, and replace rare endemic natives (Halvorson, et al. 1988, Clark, et al. 1990). Project Description OBJECTIVES While the park still harbors spectacular wildlife displays and inspires awe, past environmental insults and continued human impacts require active intervention and management to restore and protect basic park values. Restoration and protection of park resources requires an ecological monitoring program to assess the effectiveness of these efforts, and to determine limits of natural variation, diagnose abnormal conditions, and prescribe potential remedial treatments. The objective of this project is to provide that ecological monitoring program. 3 Channel Islands National Park Just as a physician monitors a patient's vital signs, natural resource managers need to be able to monitor an ecosystem's vital signs. There are several ways to monitor ecosystem health. Measures of energy flux, biodiversity, constituent budgets, and population dynamics are among the most well-developed (Orians 1986, Conant et al. 1983, Odum 1959). The population dynamics approach best meets National Park Service management requirements to: • accurately reflect ecosystem conditions, • provide easily interpreted results, • project future resource conditions, • use readily available sampling techniques, and • provide information directly applicable to management issues. Population dynamics of selected species also offer relatively unambiguous insights to ecosystem structure and function. Organisms integrate the effects of a vast array of ecological factors, including predation, competition, and environmental conditions that are expressed as changes in readily measured population parameters such as abundance, distribution, and growth and mortality rates. Measures of population age structure, reproductive efforts, and recruitment provide glimpses of the future and early warnings that remedial management actions are needed. METHODS A conceptual model of park ecosystems was used to identify 15 mutually exclusive system components that scientists are trained to study at the population level, such as pinnipeds, sea birds, terrestrial plants, and
Load more

Recommended publications
  • How to Look at Oaks
    How to Look at Oaks Species name: __________________________________________ Growth habit: tree or shrub Bark type on mature trees: scaly and papery or smooth and furrowed gray or black Foliage: Evergreen or deciduous Leaves Leaf margins: entire (smooth) lobed toothed Leaf edges from the side: wavy fat concave Lobe tips: rounded (not spiny) or spine-tipped Leaf underside: hairless or with small tufs of hairs or covered with hairs color: _______________ Leaf upper surface: dull or shiny hairless or covered with hairs color: _______________ Acorns Time to maturity: one year or two years Acorn shape: oblong elongated round tip: pointed or rounded Acorn size: length: ___________ width: ___________ Acorn cup: deep or shallow % of mature acorn covered by cup: Acorn cup shape: cap saucer bowl cup Acorn cup scales: thin, papery, leafike or thick, knobby, warty Scale tips: loose or pressed tightly to each other Acorn inner surface: densely fuzzy or hairless Based on the features above, is this a: Red/Black Oak White Oak Intermediate Oak Other Notable Features: Characteristics and Taxonomy of Quercus in California Genus Quercus = ~400-600 species Original publication: Linnaeus, Species Plantarum 2: 994. 1753 Sections in the subgenus Quercus: Red Oaks or Black Oaks 1. Foliage evergreen or deciduous (Quercus section Lobatae syn. 2. Mature bark gray to dark brown or black, smooth or Erythrobalanus) deeply furrowed, not scaly or papery ~195 species 3. Leaf blade lobes with bristles 4. Acorn requiring 2 seasons to mature (except Q. Example native species: agrifolia) kelloggii, agrifolia, wislizeni, parvula 5. Cup scales fattened, never knobby or warty, never var.
    [Show full text]
  • Birds on San Clemente Island, As Part of Our Work Toward the Recovery of the Island’S Endangered Species
    WESTERN BIRDS Volume 36, Number 3, 2005 THE BIRDS OF SAN CLEMENTE ISLAND BRIAN L. SULLIVAN, PRBO Conservation Science, 4990 Shoreline Hwy., Stinson Beach, California 94970-9701 (current address: Cornell Laboratory of Ornithology, 159 Sapsucker Woods Rd., Ithaca, New York 14850) ERIC L. KERSHNER, Institute for Wildlife Studies, 2515 Camino del Rio South, Suite 334, San Diego, California 92108 With contributing authors JONATHAN J. DUNN, ROBB S. A. KALER, SUELLEN LYNN, NICOLE M. MUNKWITZ, and JONATHAN H. PLISSNER ABSTRACT: From 1992 to 2004, we observed birds on San Clemente Island, as part of our work toward the recovery of the island’s endangered species. We increased the island’s bird list to 317 species, by recording many additional vagrants and seabirds. The list includes 20 regular extant breeding species, 6 species extirpated as breeders, 5 nonnative introduced species, and 9 sporadic or newly colonizing breeding species. For decades San Clemente Island had been ravaged by overgrazing, especially by goats, which were removed completely in 1993. Since then, the island’s vegetation has begun recovering, and the island’s avifauna will likely change again as a result. We document here the status of that avifauna during this transitional period of re- growth, between the island’s being largely denuded of vegetation and a more natural state. It is still too early to evaluate the effects of the vegetation’s still partial recovery on birds, but the beginnings of recovery may have enabled the recent colonization of small numbers of Grasshopper Sparrows and Lazuli Buntings. Sponsored by the U. S. Navy, efforts to restore the island’s endangered species continue—among birds these are the Loggerhead Shrike and Sage Sparrow.
    [Show full text]
  • Santa Catalina Island1
    Oak Restoration Trials: Santa Catalina 1 Island Lisa Stratton2 Two restoration trials involving four oak species have been implemented as part of a larger restoration program for Catalina Island. In 1997 the Catalina Island Conservancy began an active program of restoration after 50 years of ranching and farming activities on the island. The restoration program includes removing feral goats and pigs island-wide and converting 80 acres of old hayfields in Middle Canyon to native plant communities. This conversion presented the opportunity to implement experimental restoration trials to test the efficiency and efficacy of a variety of restoration techniques. The primary challenges to restoration in these areas include bison disturbance, deer browsing, long dry seasons and disturbed, weed saturated soils (e.g., Avena fatua, Cynodon dactylon (Bermuda grass), Phalaris aquatica (Harding grass) and incipient populations of Foeniculum vulgare (fennel) and Nicotiana glauca (tree tobacco). In 1999, an island scrub oak seedling trial (Quercus pacifica) was initiated to compare three different watering treatments: 1) a commercial time-release product, Driwater, 2) monthly deep-pipe watering and, 3) unwatered controls. This trial is also a factorial design that includes a native soil component. Soil from beneath mature oaks, potentially containing spore from the oak ectomycorrhizal associate, was added to half the holes at planting time. After two years the seedlings receiving the monthly watering supplements in the deep pipes were significantly taller (p<0.001) than either the no water or Driwater product treatments (45 inches vs. 33 and 29 respectively). Survivorship was higher for the deep pipe treatment (98 percent vs.
    [Show full text]
  • The Conservation and Restoration of the Mexican Islands, a Successful Comprehensive and Collaborative Approach Relevant for Global Biodiversity
    Chapter 9 The Conservation and Restoration of the Mexican Islands, a Successful Comprehensive and Collaborative Approach Relevant for Global Biodiversity Alfonso Aguirre-Muñoz, Yuliana Bedolla-Guzmán, Julio Hernández- Montoya, Mariam Latofski-Robles, Luciana Luna-Mendoza, Federico Méndez-Sánchez, Antonio Ortiz-Alcaraz, Evaristo Rojas-Mayoral, and Araceli Samaniego-Herrera Abstract Islands are biodiversity hotspots that offer unique opportunities for applied restoration techniques that have proven to bring inspiring outcomes. The trajectory of island restoration in Mexico is full of positive results that include (1) the removal of 60 invasive mammal populations from 39 islands, (2) the identifica- tion of conservation and restoration priorities, (3) the active restoration of seabird breeding colonies through avant-garde social attraction techniques, (4) the active restoration of integrated plant communities focusing on a landscape level, (5) applied research and science-based decision-making for the management of inva- sive alien species, (6) the legal protection of all Mexican islands, and (7) biosecurity and environmental learning programs to ensure outcomes are long lasting. Still, there are many complex challenges to face in order to achieve the goal of having all Mexican islands free of invasive mammals by 2030. Keywords Islands · Mexico · Restoration · Eradication · Biosecurity · Seabirds A. Aguirre-Muñoz · Y. Bedolla-Guzmán · J. Hernández-Montoya M. Latofski-Robles · L. Luna-Mendoza · F. Méndez-Sánchez (*) A. Ortiz-Alcaraz · E. Rojas-Mayoral · A. Samaniego-Herrera Grupo de Ecología y Conservación de Islas, A. C, Ensenada, Baja California, Mexico e-mail: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected] © Springer International Publishing AG, part of Springer Nature 2018 177 A.
    [Show full text]
  • SF Street Tree Species List 2019
    Department of Public Works 2019 Recommended Street Tree Species List 1 Introduction The San Francisco Urban Forestry Council periodically reviews and updates this list of trees in collaboration with public and non-profit urban forestry stakeholders, including San Francisco Public Works, Bureau of Urban Forestry and Friends of the Urban Forest. The 2019 Street Tree List was approved by the Urban Forestry Council on October 22, 2019. This list is intended to be used for the public realm of streets and associated spaces and plazas that are generally under the jurisdiction of the Public Works. While the focus is on the streetscape, e.g., tree wells in the public sidewalks, the list makes accommodations for these other areas in the public realm, e.g., “Street Parks.” While this list recommends species that are known to do well in many locations in San Francisco, no tree is perfect for every potential tree planting location. This list should be used as a guideline for choosing which street tree to plant but should not be used without the help of an arborist or other tree professional. All street trees must be approved by Public Works before planting. Sections 1 and 2 of the list are focused on trees appropriate for sidewalk tree wells, and Section 3 is intended as a list of trees that have limited use cases and/or are being considered as street trees. Finally, new this year, Section 4, is intended to be a list of local native tree and arborescent shrub species that would be appropriate for those sites in the public realm that have more space than the sidewalk planting wells, for example, stairways, “Street Parks,” plazas, and sidewalk gardens, where more concrete has been extracted.
    [Show full text]
  • An Updated Infrageneric Classification of the North American Oaks
    Article An Updated Infrageneric Classification of the North American Oaks (Quercus Subgenus Quercus): Review of the Contribution of Phylogenomic Data to Biogeography and Species Diversity Paul S. Manos 1,* and Andrew L. Hipp 2 1 Department of Biology, Duke University, 330 Bio Sci Bldg, Durham, NC 27708, USA 2 The Morton Arboretum, Center for Tree Science, 4100 Illinois 53, Lisle, IL 60532, USA; [email protected] * Correspondence: [email protected] Abstract: The oak flora of North America north of Mexico is both phylogenetically diverse and species-rich, including 92 species placed in five sections of subgenus Quercus, the oak clade centered on the Americas. Despite phylogenetic and taxonomic progress on the genus over the past 45 years, classification of species at the subsectional level remains unchanged since the early treatments by WL Trelease, AA Camus, and CH Muller. In recent work, we used a RAD-seq based phylogeny including 250 species sampled from throughout the Americas and Eurasia to reconstruct the timing and biogeography of the North American oak radiation. This work demonstrates that the North American oak flora comprises mostly regional species radiations with limited phylogenetic affinities to Mexican clades, and two sister group connections to Eurasia. Using this framework, we describe the regional patterns of oak diversity within North America and formally classify 62 species into nine major North American subsections within sections Lobatae (the red oaks) and Quercus (the Citation: Manos, P.S.; Hipp, A.L. An Quercus Updated Infrageneric Classification white oaks), the two largest sections of subgenus . We also distill emerging evolutionary and of the North American Oaks (Quercus biogeographic patterns based on the impact of phylogenomic data on the systematics of multiple Subgenus Quercus): Review of the species complexes and instances of hybridization.
    [Show full text]
  • General Management Plan 1980 Volume 2
    general management plan volume 2 natural / cultural resource management september 1980 . ---·-- -- --- -------,---·--·-----···--- - - -· ·_~_ •·.• .. -•,·· ''( ... ::: ' .. _:.;~~!5'~ ' ' ,,' / .... - ., .:._ :_::.~.":_~~:~_~;~ I i...r.. / f·i' 1: CHANN L I ' -'rt~:;! '·'.l\tJACAPA'.'SANTAJl!i~,;~~,- NATIONAL PARK / CALIFORNIA RECOMMENDED: Kenneth Raithel, Assistant Manager August 1980 Denver Service Center William Ehorn, Superintendent August 1980 Channel Islands Natfonal Park APPROVED: Howard H. Chapman, Regional Director September 1980 Western Region GENERAL MANAGEMENT PLAN ANACAPA-SANTA BARBARA-SAN MIGUEL ISLANDS CHANNEL ISLANDS NATIONAL PARK i _J _.... --- ABSTRACT The resource management plan for Channel Islands National Park discusses cultural and natural resources and deals primarily with currently identified problems as well as proposed solutions for the three islands currently managed by the National Park Service. Initial sections provi•de background information regarding the park and influences on its resources and discuss the role of research within the park. Separate sections deal with each resource type. Specific resource problems that require management action are identified, and actions are recommended to either obtain additional information or to solve the identified problem. Impacts likely· to result from the recommended actions are noted. Few alternatives are discussed for an identified problem because few alternatives were identified as feasible. Further study is required before actions with the potential for significant
    [Show full text]
  • Reintroduction of Historically Extirpated Taxa on the California Channel Islands Scott A
    Monographs of the Western North American Naturalist Volume 7 8th California Islands Symposium Article 37 12-31-2014 Reintroduction of historically extirpated taxa on the California Channel Islands Scott A. Morrison The Nature Conservancy, San Francisco, CA, [email protected] Kevin A. Parker Institute of Natural Sciences, Massey University, [email protected] Paul W. Collins Santa Barbara Museum of Natural History, Santa Barbara, CA, [email protected] W. Chris Funk Colorado State University, Fort Collins, CO, [email protected] T. Scott iS llett Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, [email protected] Follow this and additional works at: https://scholarsarchive.byu.edu/mwnan Recommended Citation Morrison, Scott A.; Parker, Kevin A.; Collins, Paul W.; Funk, W. Chris; and Sillett, T. Scott (2014) "Reintroduction of historically extirpated taxa on the California Channel Islands," Monographs of the Western North American Naturalist: Vol. 7 , Article 37. Available at: https://scholarsarchive.byu.edu/mwnan/vol7/iss1/37 This Monograph is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Monographs of the Western North American Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Monographs of the Western North American Naturalist 7, © 2014, pp. 531–542 REINTRODUCTION OF HISTORICALLY EXTIRPATED TAXA ON THE CALIFORNIA CHANNEL ISLANDS Scott A. Morrison1,6, Kevin A. Parker2, Paul W. Collins3, W. Chris Funk4, and T. Scott Sillett5 ABSTRACT.—Most invasive alien vertebrate populations on the Channel Islands of California have been eradicated over the past 30 years.
    [Show full text]
  • BAWSCA Turf Replacement Program Plant List Page 1 Species Or
    BAWSCA Turf Replacement Program Plant List Page 1 Species or Cultivar Common name Irrigation Irrigation (1) Requirement Type (2) Native Coastal Peninsula Bay East Salinity (3) Tolerance Abutilon palmeri INDIAN MALLOW 1 S √ √ √ √ Acer buergerianum TRIDENT MAPLE 2 T √ H Acer buergerianum var. formosanum TRIDENT MAPLE 2 T √ Acer circinatum VINE MAPLE 2 S √ √ √ √ Acer macrophyllum BIG LEAF MAPLE 2 T √ √ L Acer negundo var. californicum BOX ELDER 2 T √ √ Achillea clavennae SILVERY YARROW 1 P √ √ √ M Achillea millefolium COMMON YARROW 1 P √ √ √ M Achillea millefolium 'Borealis' COMMON YARROW 1 P √ √ √ M Achillea millefolium 'Colorado' COMMON YARROW 1 P √ √ √ M Achillea millefolium 'Paprika' COMMON YARROW 1 P √ √ √ M Achillea millefolium 'Red Beauty' COMMON YARROW 1 P √ √ √ M Achillea millefolium 'Summer Pastels' COMMON YARROW 1 P √ √ √ M Achillea 'Salmon Beauty' 1 P √ √ √ M Achillea taygetea 1 P √ √ √ Achillea 'Terracotta' 1 P √ √ √ Achillea tomentosa 'King George' WOLLY YARROW 1 P √ √ √ Achillea tomentosa 'Maynard's Gold' WOLLY YARROW 1 P √ √ √ Achillea x kellereri 1 P √ √ √ Achnatherum hymenoides INDIAN RICEGRASS 1 P √ √ √ √ Adenanthos sericeus WOOLYBUSH 1 S √ √ √ Adenostoma fasciculatum CHAMISE 1 S √ √ √ √ Adenostoma fasciculatum 'Black Diamond' CHAMISE 1 S √ √ √ √ Key (1) 1=Least 2=Intermediate 3=Most (2) P=Perennial; S=Shrub; T=Tree (3) L=Low; M=Medium; H=High 1/31/2012 BAWSCA Turf Replacement Program Plant List Page 2 Species or Cultivar Common name Irrigation Irrigation (1) Requirement Type (2) Native Coastal Peninsula Bay East Salinity (3) Tolerance Adenostoma fasciculatum 'Santa Cruz Island' CHAMISE 1 S √ √ √ √ Adiantum jordnaii CALIFORNIA MAIDENHAIR 1 P √ √ √ √ FIVE -FINGER FERN, WESTERN Adiantum pedatum MAIDENHAIR 2 P √ √ √ √ FIVE -FINGER FERN, WESTERN Adiantum pedatum var.
    [Show full text]
  • International Oaks No. 22.Pdf
    INTERNATIONAL OAKS The Journal of the International Oak Society Issue No. 22 Spring 2011 ISSN 1941 2061 Spring 2011 International Oak Journal No. 22 1 The International Oak Society Officers and Board of Directors, 2009 Editorial Office: Membership Office: Béatrice Chassé (France), President Guy Sternberg (USA) Rudy Light (USA) Charles Snyers d'Attenhoven (Belgium), Starhill Forest 11535 East Road Vice-President 12000 Boy Scout Trail Redwood Valley, CA Jim Hitz (USA), Secretary Petersburg, IL 95470 US William Hess (USA), Treasurer 62675-9736 [email protected] Rudy Light (USA), Membership Director e-mail: Dirk Benoît (Belgium), [email protected] Tour Committee Director Allan Taylor (USA), Ron Allan Taylor (USA)USA) Editor, Oak News & Notes 787 17th Street Allen Coombes (Mexico), Boulder, CO 80302 Development Director [email protected] Guy Sternberg (USA), 303-442-5662 Co-editor, IOS Journal Ron Lance (USA), Co-editor, IOS Journal Anyone interested in joining the International Oak Society or ordering information should contact the membership office or see the wesite for membership enrollment form. Benefits include International Oaks and Oak News and Notes publications, conference discounts, and exchanges of seeds and information among members from approximately 30 nations on six continents. International Oak Society website: http://www.internationaloaksociety.org ISSN 1941 2061 Cover photos: Front: Quercus chrysolepsis Liebm. or Uncle Oak, of Palomar Mountain photo©Guy Sternberg Back: Quercus alentejana (a new species) foliage and fruits photos©Michel Timacheff 2 International Oak Journal No. 22 Spring 2011 Table of Contents Message from the Editor Guy Sternberg ..................................................................................................5 Paternity and Pollination in Oaks: Answers Blowin’ in the Wind Mary V.
    [Show full text]
  • Download PDF File Concordia Arboretum at Meek Tech Tree Walk
    Concordia Arboretum at Meek Tech Tree Walk LEARNING LANDSCAPES Concordia Arboretum at Meek Tech Tree Walk 2015 Learning Landscapes Site data collected in Summer 2014. Written by: Kat Davidson, Karl Dawson, Angie DiSalvo, Jim Gersbach and Jeremy Grotbo Portland Parks & Recreation Urban Forestry 503-823-TREE [email protected] http://portlandoregon.gov/parks/learninglandscapes Cover photos (from top left to bottom right): 1) Fruit and foliage of a Celtis bungeana. 2) The spreading canopy of a blue oak. 3) A pair of tall Sequoia sempervirens. 4) Quercus tomentella acorns. 5) Clustered acorns of a bur oak. 6) Sunlight shines through a California black oak leaf. 7) A winged hackberry growing in an arboretum. 8) The rarely-seen fl owers of an Emmenopterys henryi. Photo above: 1) A large canyon live oak growing in its native range. ver. 1/28/2015 Portland Parks & Recreation 1120 SW Fifth Avenue, Suite 1302 Portland, Oregon 97204 (503) 823-PLAY Commissioner Amanda Fritz www.PortlandParks.org Director Mike Abbaté The Learning Landscapes Program Concordia Arboretum at Meek Tech The Concordia Arboretum at Meek Tech Learning Landscape was initiated in December 2010 with a planting of 28 trees. It showcases evergreen and deciduous oaks as well as relict, monotypic species. This tree walk identifi es trees planted as part of the Learning Landscape as well as other specimens at the school. What is a Learning Landscape? A Learning Landscape is a collection of trees planted and cared for at a school by students, volunteers, and Portland Parks & Recreation (PP&R) Urban Forestry staff. Learning Landscapes offer an outdoor educational experience for students, as well as environmental and aesthetic benefi ts to the school and surrounding neighborhood.
    [Show full text]
  • Lausd Approved Plant List 2012 Trees
    LAUSD APPROVED PLANT LIST 2012 TREES CA Botanical Name Common Name Native Notes Tolerates seasonal flooding. Mature trees create heavy litter. Light shade. Highly allergenic, use Acacia stenophylla Shoestring acacia sparingly. Acer macrophyllum Big leaf maple x High water use. See Bioswale list. Afrocarpus gracilior (Podocarpus gracilior) Fern pine Agonis flexuosa Peppermint tree Agonis flexuosa 'Jervis Bay After After Dark peppermint Dark' tree Dark purple leaves and red stems. Albizzia julibrissin Silk tree Not as good near the coast. Allocasuarina verticillata Drooping she-oak, Coast (Casuarina stricta) beefwood Highly allergenic, use sparingly. Alnus rhombifolia White alder x High water use. See Bioswale list. Arbutus 'Marina' Marina strawberry tree Arbutus unedo Strawberry tree Bauhinia blakeana Hong Kong orchid tree Bauhinia variegata (purpurea) Purple orchid tree Brachychiton acerifolius Australian flame tree Brachychiton rupestris Narrow-leaf bottle tree Very wide bottle shaped trunk. Callistemon viminalis Weeping bottle brush Calocedrus decurrens Incense cedar x Cassia leptophylla Gold medallion tree Casuarina cunninghamiana River she-oak Highly allergenic, use sparingly. Catalpa bignonioides Common catalpa Good for lawns. Catalpa speciosa Western catalpa Good for lawns. Cedrus atlantica Atlas cedar Cedrus atlantica ‘Glauca’ Blue atlas cedar Cedrus deodara Deodar cedar Cedrus libani Cedar of Lebanon Small fruits feed native birds Western or Net-leaf through winter. Can be limbed up Celtis reticulata hackberry x for tree form. TREES CA Botanical Name Common Name Native Notes Male trees are high allergen producers. Females produce edible Ceratonia siliqua Carob tree pods. Site appropriately. Cercis occidentalis Western redbud x Desert willow (e.g. Burgundy Lace, Warren Jones evergreen desert Chilopsis linearis and cultivars willow) x Does better away from the coast.
    [Show full text]