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Rainforest Plant Developed 'Sonar Dish' to Attract Pollinating Bats
Rainforest plant developed 'sonar dish' to attract pollinating bats How plants sound as well as how they look helps them to attract pollinators, a new study has found. Researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. Flowering inflorescence of Marcgravia evenia. (A) dish-shaped leaf, (B) ring of flowers most of them in the male phase with anthers shedding pollen, (C) cup-like nectaries. How plants sound as well as how they look helps them to attract pollinators, a new study by scientists at the University of Bristol, UK, and the Universities of Erlangen and Ulm, Germany has found. The researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. The study is published in Science. While it is well known that the bright colours of flowers serve to attract visually-guided pollinators such as bees and birds, little research has been done to see whether plants which rely on echolocating bats for pollination and seed dispersal have evolved analogous echo-acoustic signals. The Cuban rainforest vine Marcgravia evenia has developed a distinctively shaped concave leaf next to its flowers which, the researchers noticed, is reminiscent of a dish reflector. By analyzing the leaf's acoustic reflection properties, they found that it acts as an ideal echo beacon, sending back strong, multidirectional echoes with an easily recognizable, and unvarying acoustic signature -- perfect for making the flower obvious to echolocating bats. -
The Huntington Botanical Gardens) Who Was Employed at the UC Garden at the Time
June 30, 2005 Gary Lyons, Editor-in-Chief Joanne Gram, Editor Welcome to The Jumping Cholla. Click on the titles below to go directly to each article, or simply read the articles in order by scrolling down. Most photos may be viewed in a larger size if you click on them. When you want to return to the newsletter, just click on your Back button. If you have questions or comments, please feel free to email the editors by clicking on their names above. That will open a blank email pre-addressed to them. Contents Yuccas in the Huntington Desert Garden Milieu The Weird and Wonderful Boojum Tree, Fouquieria columnaris, and its Relatives Curator’s Comments New Additions to the Huntington's Website and a Little Desert Collections History Yuccas in the Huntington Desert Garden Milieu by Gary Lyons, Curator of the Desert Garden The spiky-leaved yuccas are among the oldest plants in the Huntington landscape. Plantings dating back to 1908 and still thriving give the garden much of its character. Their bright festive panicles of white blossoms add a cheery background and accent to the symphony of spring color in the lower Desert Garden. According to the latest authorities there are 45 yucca species and 14 varieties and they are placed in the agave family. Most of the species are found in the Southwest, northern and central Mexico and Baja California. But the genus is more widespread with species found along the Atlantic seaboard, the Great Plains, into Canada, and south as far as Guatemala. Yucca blossoms, with the exception of at least one species (the rose-tinged Yucca endlichiana) are mostly creamy white. -
Abundancia Y Diversidad De Hongos Formadores De Micorrizas Arbusculares (Hfma) Asociadas a La Vegetación Circundante En Un
ABUNDANCIA Y DIVERSIDAD DE HONGOS FORMADORES DE MICORRIZAS ARBUSCULARES (HFMA) ASOCIADAS A LA VEGETACIÓN CIRCUNDANTE EN UN ÁREA DE MINERÍA DEL MUNICIPIO DE SANTA-ISABEL, TOLIMA HERIK JOHAN GUZMÁN LASSO YESSICA LORENA PERDOMO USECHE Trabajo de grado como requisito parcial para optar el título de Biólogo DIRECTOR MARYEIMY VARÓN LÓPEZ Doctor en Ciencias CODIRECTOR HILDA ROCÍO MOSQUERA Doctor en Ciencias- Biológicas UNIVERSIDAD DEL TOLIMA FACULTAD DE CIENCIAS PROGRAMA DE BIOLOGÍA 2017 DEDICATORIA 2 A nuestras familias que fueron nuestro más grande apoyo y al amor que nos permitió superar cada adversidad. 3 AGRADECIMIENTOS A nuestra directora, la Doctora Maryeimy Varón, por su valioso compromiso, dedicación y paciencia en cada etapa del proyecto. A la Doctora Hilda Rocío Mosquera, codirectora del proyecto, por su guía y amable acompañamiento. Al grupo de investigación GEBIUT, por su colaboración y gran orientación en el desarrollo del trabajo. A los funcionarios de la mina de Santa Isabel por el acompañamiento y por permitirnos realizar la toma de muestras. Al Magister Urley Adrián Pérez, por su amable orientación en la taxonomía y manejo de los HFMA. A nuestras compañeras y amigas Lily Julieth Vargas y Lizeth Ospina, por su respaldo y apoyo en el proceso de investigación. A nuestros amigos por su comprensión, valiosas ideas, y apoyo en diferentes procesos del trabajo. A la Universidad del Tolima y la oficina de investigaciones, por la financiación del proyecto. 4 CONTENIDO INTRODUCCIÓN ......................................................................................................... -
Sensory and Cognitive Constraints and Opportunities in Bats
Sensory and Cognitive Constraints and Opportunities in Bats by Jeneni Thiagavel A thesis submitted in conformity with the requirements for the Degree of Doctor of Philosophy Department of Ecology and Evolutionary Biology University of Toronto © Copyright by Jeneni Thiagavel, 2019 i Sensory and Cognitive Constraints and Opportunities in Bats Doctor of Philosophy, 2019 Jeneni Thiagavel, Department of Ecology and Evolutionary Biology, University of Toronto Here I report on three comparative studies and one review chapter addressing the relationships between sensory reliance, neuroanatomy, skull morphology and body size, as they relate to diet and foraging in bats. In chapter two, I use morphological and echolocation data to test whether (i) mass-signal frequency allometry or (ii) emitter-limited (maximum gape) signal directionality better explain the negative relationship between size and peak frequency in bats. The results suggest that body mass and forearm length were important predictors of open space echolocation call peak frequency in ways that (i) reflect species- specific size differences, and (ii) suggest the influence of preferred foraging habitat. In chapter three, I test the predictions that the ancestral bat had (i) an auditory brain design capable of supporting early laryngeal echolocation, but (ii) eyes of insufficient absolute size to allow insect tracking at night. The results suggest that bats’ common ancestor had eyes too small to allow for successful aerial hawking of flying insects at night, but an auditory brain design sufficient to afford echolocation. Further, we find that those with less sophisticated biosonar have relatively larger eyes than do sophisticated echolocators. ii In chapter four, I continue to explore apparent trade-offs between echolocation call design and vision in predatory bats. -
Revista Nicaraguense De Biodiversidad
ISSN 2413-337X REVISTA NICARAGUENSE DE BIODIVERSIDAD N° 18. ______________________________ Agosto 2017 Nouvelles Idées et Nouvelles Recherches. Nouveaux livres. Pierre Jolivet PUBLICACIÓN DEL MUSEO ENTOMOLÓGICO ASOCIACIÓN NICARAGÜENSE DE ENTOMOLOGÍA LEÓN - - - NICARAGUA REVISTA NICARAGUENSE DE BIODIVERSIDAD. No.18. 2017. La Revista Nicaragüense de Biodiversidad (ISSN 2413-337X) es una publicación que pretende apoyar a la divulgación de los trabajos realizados en Nicaragua en este tema. Todos los artículos que en ella se publican son sometidos a un sistema de doble arbitraje por especialistas en el tema. The Revista Nicaragüense de Biodiversidad (ISSN 2413-337X) is a journal created to help a better divulgation of the research in this field in Nicaragua. Two independent specialists referee all published papers. Consejo Editorial Jean Michel Maes Editor Museo Entomológico Nicaragua Milton Salazar Eric P. van den Berghe Herpetonica, Nicaragua ZAMORANO, Honduras Editor para Herpetología. Editor para Peces. Liliana Chavarria Arnulfo Medina ALAS, El Jaguar Nicaragua Editor para Aves. Editor para Mamíferos. Oliver Komar Estela Yamileth Aguilar ZAMORANO, Honduras Alvarez Editor para Ecología. ZAMORANO, Honduras Editor para Biotecnología. Indiana Coronado Missouri Botanical Garden/ Herbario HULE-UNAN León Editor para Botánica. _______________ Portada: Entimus imperialis (Forster) Brasil. (Curculionidae). (Foto: Ettore Balocchi). 2 REVISTA NICARAGUENSE DE BIODIVERSIDAD. No.18. 2017. Nouvelles Idées et Nouvelles Recherches. Pierre Jolivet* Resumen. Nada realmente nuevo en la web. Algunos detalles sobre las manipulaciones de sus huéspedes por parte de parásitos, el descubrimiento de una cucaracha saltarina en Sudáfrica, la influencia de los trips sobre la fecundación de las plantas del pasado, más detalles sobre los Heliconius, estas esplendidas mariposas americanas, nuevas discusiones sobre la coevolución, aun no borradas de los tratados evolucionistas. -
Plant Attractants: Integrating Insights from Pollination and Seed Dispersal Ecology
Evol Ecol DOI 10.1007/s10682-016-9870-3 Plant attractants: integrating insights from pollination and seed dispersal ecology 1 2 2 Kim Valenta • Omer Nevo • Carlos Martel • Colin A. Chapman1,3,4 Received: 29 February 2016 / Accepted: 22 October 2016 Ó Springer International Publishing Switzerland 2016 Abstract Reproduction in many angiosperms depends on attracting animals that provide pollination and seed dispersal services. Flowers and fleshy fruits present various features that can attract animal mutualists through visual, olfactory, acoustic, and tactile cues and signals, and some of these traits may result from selection exerted by pollinators and seed dispersers. Plant attractants can provide information regarding the presence, location, and quality of the reward. However, because of the different functional outcomes of pollination and seed dispersal, pollination systems are thought to be more highly specialized than seed dispersal systems. Despite these interesting parallels and contrasts, theoretical and empirical insights in the sensory ecology of pollination and seed dispersal are rarely considered together. Here, we review extant theory and data of sensory attractants from both pollination and seed dispersal systems. We discuss theoretical and empirical simi- larities and differences between pollination and seed dispersal and offer suggestions for ways in which insights from each field may benefit the other in future. Keywords Animal–plant interactions Á Communication Á Coevolution Á Foraging ecology Á Mutualism Á Sensory ecology & Kim Valenta [email protected] 1 Department of Anthropology, McGill University, Montreal, QC, Canada 2 Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Helmholtzstr. 10-1, 89081 Ulm, Germany 3 McGill School of Environment, McGill University, Montreal, QC, Canada 4 Wildlife Conservation Society, Bronx, NY, USA 123 Evol Ecol Introduction For many plant species, particularly angiosperms, reproduction requires animals as polli- nators, seed dispersers, or both (Schaefer et al. -
Fouquieriaceae Leo Martin October 2001
Fouquieriaceae Leo Martin October 2001 This is a small North American plant family with only one genus, Fouquieria, containing only 15 species. All but one are medium to large deciduous shrubs, leafing out at any time when rain is available, then going dormant during dry weather. They tend to bloom once per year, unlike our ocotillo, F. splendens, which was named by Georg Engelmann after his visit to our area on the Boundary Expedition in the 1840’s. F. splendens occurs from Texas through California and south into Mexico. The other species occur in Mexico; most have short trunks, branches and are not as tall as the ocotillo. The family is recognized by the flowers. These are borne in terminal clusters and are tubular, with stamens protruding a good way past the tube. Most species have red or yellow flowers. They are considered adaptations for hummingbird pollination, which is certainly the case with the ocotillo. The glorious exception is F. columnaris—the boojum tree. At one time segregated into its own genus, Idria. Botanists now consider it not different enough in floral structure to justify this separation. You can leave Idria on your labels; everybody knows this name. The boojum grows in mid-Baja, California beginning about 10 miles inland. Drive south to El Rosario and turn left. Soon you will be amazed. It experiences hot days, but not our hot nights. Winter and spring fogs are frequent. Almost all the rain falls in the cooler winter. It is not easy to grow here in the low desert; our hot summer nights coupled with summer rains induce rot quite easily. -
Endangered Species Bulletin Vol. XXXVIII No. 3, May-June, 2003
Conserving Cacti by Ariel Rojo and Eduardo Peters in México Some of the most attractive plants States. This ecoregion is considered one in the world are the cacti. These plants of the most biologically rich and diverse are associated mainly with deserts, deserts in the world, with 3,500 plant though they can also be found in species, many of them endemic. temperate forests and even in tropical zones. Their adaptations have caught the Threats attention of many naturalists and The cactus family is faced with scientists all around the world, and growing environmental threats, including collectors appreciate enormously the urban sprawl, expansion of the agricul- The boojum (Fouquieria columnaris) great variety in their forms and flowers. tural frontier, introduction of exotic has an appearance that fires the The family Cactaceae, endemic to the species, overgrazing by cattle, uncon- imagination. For most of the year it is Western Hemisphere, contains about trolled tourism, and poaching driven by leafless and looks like a giant 1,800 species. Although its origins may the demand of exotic plant markets. All upturned carrot. Its common name be in the Caribbean, diversification of of these threats are particularly harmful was coined by the explorer Godfrey cactus taxa has reached a peak in to cactus species because many of them Sykes, who found it in 1922 and said “It must be a boojum!” He was México, where 48 genera (73 percent have small populations, making them referring of the strange and mythical endemic) and 850 species (85 percent very vulnerable to extinction. Many of creature that the author Lewis Carroll endemic) are found. -
Plants Western United States University of Arizona Crassulacean
Desert Plants, Volume 5, Number 4 (Winter 1984) Item Type Article Publisher University of Arizona (Tucson, AZ) Journal Desert Plants Rights Copyright © Arizona Board of Regents. The University of Arizona. Download date 23/09/2021 10:47:41 Link to Item http://hdl.handle.net/10150/552238 Volume 5, Number 4 Desert Published by The University of Arizona for the Plants Boyce Thompson Southwestern Arboretum. Editorial -Life Forms of Desert Plants 130 A Classification of Life Forms of the Sonoran Desert, With Emphasis on the Seed Plants and Their Survival Strategies 131 F. S. Crosswhite and C. D. Crosswhite The Acanthaceae of the South- western United States 162 T. F. Daniel New Plant Records From the Sonoran Desert 180 G. Yatskievych and P. C. Fischer Publication of Dr. Howard Scott Gentry's Book Agaves of Continental North America by the University of Arizona Press 191 Crassulacean Acid Metabolism 192 Tallest known Boojum Tree (Idria columnaris), over 81 feet high, with a massive Cardón Pelón (Pachycereus pringlei) at Montevideo Canyon, north of San Borja, Baja California del Norte. Photo by Mark Dimmitt. See article on life forms, pg. 131. 130 Desert Plants 5;41 Winter 1984 Volume 5, Number 4, 1984 Desert Plants Published by The University of Arizona for the Boyce Thompson Southwestern Arboretum A quarterly journal devoted to broadening knowledge of P.O. Box AB, Superior, Arizona 85273 plants indigenous or adaptable to arid and sub -arid regions, to studying the growth thereof and to encouraging an The Boyce Thompson Southwestern Arboretum at Superior, appreciation of these as valued components of the landscape. -
Baja California Desert
346 Baja California Desert Baja California Desert the most crucial factor to determine the unique- ness of this desert. Category: Desert Biomes. In addition to the isolated nature of the penin- Geographic Location: North America. sula as a whole, scattered and sequestered habi- Summary: !e only desert in the world tats at different scales are superimposed on the surrounded by two seas, this geologically desert along its length. Sea islands of various sizes isolated peninsula sets the stage for a myriad are present along the Pacific coast; they are espe- of remarkable plants and animals exemplifying cially abundant throughout the Gulf of California. adaptations to an isolated and arid environment. !e highest tips of the mountain ranges that form the backbone of the Peninsula contain small sky !e Baja California Desert is the peninsular arm islands of relict temperate ecosystems. of the mainland Sonoran Desert, and although Scattered palm oases in deep and sheltered dis- closely related to each other, they contain dramati- junct canyons represent mesic (moderately moist) cally different evolutionary histories. While the refuges within a landscape of dry rock and sand. mainland Sonoran Desert biota evolved connected Both seacoasts are dotted with coastal lagoons to both northern temperate biomes and southern often harboring mangroves, here at their north- tropical forests, the evolution of the Baja Califor- ernmost occurrence in North America, that con- nia peninsula took a different trajectory due to its stitute critically important wetland ecosystems. long history of isolation. !e Baja California Des- !is mosaic of insularity at different temporal ert is a paradigm of the importance of geography and spatial scales, constitutes the driving force of and time, the two axes along which life develops its biological speciation: adaptation to local, isolated variations in shaping the natural world. -
San Diego Plant Atlas Project” and Horticulturist of the Year Presentation
Newsletteret’s of the San Diego Horticulturalalk Society lNovemberants! 2011, Number 206 LSan TDiego P Plant Atlas Project SEE PAGE 1 Coast Aster PAGE 4 SDHS Bay Area Tour PAGE 5 Storm Water Exhibit PAGE 9 On the Cover: Boojum Tree ▼SDHS SPONSOR October Coffee in the Garden & New Member Orientation Photos Barbara Raub Susan & Frank Oddo (shown here) were the gracious hosts for the October Coffee and also the New Member Orientation. They created the garden art from old metal parts and a very special container. More photos are on our Facebook page. ▼SDHS SPONSOR GREEN THUMB SUPER GARDEN CENTERS 1019 W. San Marcos Blvd. • 760-744-3822 (Off the 78 Frwy. near Via Vera Cruz) • CALIFORNIA NURSERY PROFESSIONALS ON STAFF • HOME OF THE NURSERY EXPERTS • GROWER DIRECT www.supergarden.com Fall Savings! WITH THIS VALUABLE Coupon $500OFF Any Purchase of $3000 or More! OR $1000 OFF Any Purchase of $5000 or More! • Coupon not valid with any sale items or with other offers or coupons • Coupon may not be used towards purchase of gift certifi cates • Must present printed coupon to cashier at time of purchase • Offer does not include sod • Limit 1 coupon per household • Coupon expires 11/30/2011 at 6 p.m. In This Issue... San Diego Horticultural Society 2 Important Member Information Our Mission is to promote the enjoyment, art, knowledge 3 Activities Committee and public awareness of horticulture in the San Diego area, while providing the opportunity for education and research. 3 To Learn More... 3 From the Board Membership Information 4 The Real Dirt On…Gary Hammer Details on membership are on page 20 and at www.sdhortsoc.org 4 Going Wild With The Natives: Coast Aster For questions contact [email protected] or 5 Trees, Please Jim Bishop at (619) 296-9215. -
Spring 2020 Plant List – 05/31/20 Miles' to Go - P.O
SPRING 2020 PLANT LIST – 05/31/20 MILES' TO GO - P.O. BOX 6 - CORTARO, AZ 85652 - 520-682-7272 - FAX 520-682-0480 EMAIL [email protected] - WEB SITE www.miles2go.com INFORMATION POLICY: We do not share or sell our mailing or emailing information with anyone. ALL PLANTS ARE SHIPPED BARE ROOT. Cacti and hardier succulents are allowed to dry before they are wrapped to prevent rot in shipment. Tender leafy succulents have their roots wrapped in a paper towel moistened with antiseptic chinosol solution and plastic wrap. ORDERING INFORMATION Shipping Charges: Please use chart below to calculate shipping charges for your order. For orders under $25 - add $15.00 for shipping by Priority Mail For orders from $25 to $49.99 - add $10.00 for shipping by Priority Mail For orders $50 and over - free shipping by Priority Mail Express Mail will be billed for the exact amount, contact us if you are paying by check or money order. Catalog Number: Please include the catalog number which appears with each plant entry in order to speed up the processing of your order. Email Orders: At the current time we do not have a secured server and do not recommend emailing credit card numbers. If we have your credit card number on file, email us your order and include just the last 4 digits and exp. date of your credit card as verification. You may email your order and we will hold it for you until we receive payment information (via phone, fax or mail) . Fax Orders: You may fax your order to 520-682-0480 at any time.