CDFA Weed Pest Ratings and CCR 4500 Noxious Weeds As of June 22, 2021
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Density, Distribution and Habitat Requirements for the Ozark Pocket Gopher (Geomys Bursarius Ozarkensis)
DENSITY, DISTRIBUTION AND HABITAT REQUIREMENTS FOR THE OZARK POCKET GOPHER (Geomys bursarius ozarkensis) Audrey Allbach Kershen, B. S. Thesis Prepared for the Degree of MASTER OF SCIENCE UNIVERSITY OF NORTH TEXAS May 2004 APPROVED: Kenneth L. Dickson, Co-Major Professor Douglas A. Elrod, Co-Major Professor Thomas L. Beitinger, Committee Member Sandra L. Terrell, Interim Dean of the Robert B. Toulouse School of Graduate Studies Kershen, Audrey Allbach, Density, distribution and habitat requirements for the Ozark pocket gopher (Geomys bursarius ozarkensis). Master of Science (Environmental Science), May 2004, 67 pp., 6 tables, 6 figures, 69 references. A new subspecies of the plains pocket gopher (Geomys bursarius ozarkensis), located in the Ozark Mountains of north central Arkansas, was recently described by Elrod et al. (2000). Current range for G. b. ozarkensis was established, habitat preference was assessed by analyzing soil samples, vegetation and distance to stream and potential pocket gopher habitat within the current range was identified. A census technique was used to estimate a total density of 3, 564 pocket gophers. Through automobile and aerial survey 51 known fields of inhabitance were located extending the range slightly. Soil analyses indicated loamy sand as the most common texture with a slightly acidic pH and a broad range of values for other measured soil parameters and 21 families of vegetation were identified. All inhabited fields were located within an average of 107.2m from waterways and over 1,600 hectares of possible suitable habitat was identified. ACKNOWLEDGMENTS Appreciation is extended to the members of my committee, Dr. Kenneth Dickson, Dr. Douglas Elrod and Dr. -
(Poaceae: Paniceae), with Lectotypification of Panicum Divisum
Phytotaxa 181 (1): 059–060 ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ PHYTOTAXA Copyright © 2014 Magnolia Press Correspondence ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.181.1.5 A new combination in Cenchrus (Poaceae: Paniceae), with lectotypification of Panicum divisum FILIP VERLOOVE1, RAFAËL GOVAERTS2 & KARL PETER BUTTLER3 1Botanic Garden of Meise, Nieuwelaan 38, B-1860 Meise, Belgium [[email protected]] 2Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE, England [[email protected]] 3Orber Straße 38, D-60386 Frankfurt am Main, Germany [[email protected]] Abstract The new combination, Cenchrus divisus (J.F. Gmelin) Verloove, Govaerts & Buttler, is proposed for the species widely known as Pennisetum divisum (J.F. Gmelin) Henrard, and a lectotype for Panicum divisum J.F. Gmelin is designated. Key words: Cenchrus, lectotypification, nomenclature, Panicum As a result of recent molecular phylogenetic studies the generic boundaries of Cenchrus L. and related genera have considerably changed. Donadio et al. (2009) found that Cenchrus and Pennisetum Rich. are very closely related and demonstrated that most species of Cenchrus are in fact nested in Pennisetum. Chemisquy et al. (2010) confirmed these results and recommended merging both genera. The generic name Cenchrus having priority, all species of Pennisetum needed to be transferred to Cenchrus. Morrone (in Chemisquy et al., 2010) published new combinations in Cenchrus for most of the species and Symon (2010) made some additional name changes for a few Australian taxa. The correct names in Cenchrus for all but one of the 15 Pennisetum species in Europe and the Mediterranean area, including four new combinations, were given in Verloove (2012). -
Comparison of Swamp Forest and Phragmites Australis
COMPARISON OF SWAMP FOREST AND PHRAGMITES AUSTRALIS COMMUNITIES AT MENTOR MARSH, MENTOR, OHIO A Thesis Presented in Partial Fulfillment of the Requirements for The Degree Master of Science in the Graduate School of the Ohio State University By Jenica Poznik, B. S. ***** The Ohio State University 2003 Master's Examination Committee: Approved by Dr. Craig Davis, Advisor Dr. Peter Curtis Dr. Jeffery Reutter School of Natural Resources ABSTRACT Two intermixed plant communities within a single wetland were studied. The plant community of Mentor Marsh changed over a period of years beginning in the late 1950’s from an ash-elm-maple swamp forest to a wetland dominated by Phragmites australis (Cav.) Trin. ex Steudel. Causes cited for the dieback of the forest include salt intrusion from a salt fill near the marsh, influence of nutrient runoff from the upland community, and initially higher water levels in the marsh. The area studied contains a mixture of swamp forest and P. australis-dominated communities. Canopy cover was examined as a factor limiting the dominance of P. australis within the marsh. It was found that canopy openness below 7% posed a limitation to the dominance of P. australis where a continuous tree canopy was present. P. australis was also shown to reduce diversity at sites were it dominated, and canopy openness did not fully explain this reduction in diversity. Canopy cover, disturbance history, and other environmental factors play a role in the community composition and diversity. Possible factors to consider in restoring the marsh are discussed. KEYWORDS: Phragmites australis, invasive species, canopy cover, Mentor Marsh ACKNOWLEDGEMENTS A project like this is only possible in a community, and more people have contributed to me than I can remember. -
Observations on the Restoration of Herbaceous Vegetation in Some Areas in Bacǎu End Harghita County
Studii şi Cercetări Martie 2020 Biologie 29/1 14-19 Universitatea”Vasile Alecsandri” din Bacău OBSERVATIONS ON THE RESTORATION OF HERBACEOUS VEGETATION IN SOME AREAS IN BACǍU END HARGHITA COUNTY Milian Gurău Key words: natural ecological reconstruction, Calthetum laetae- Ligularietum sibiricae N. Ştefan 2007, Botriochloetum ischaemi (Krist 1937) I. Pop 1977, Thymo panonici-Chrysopogonetum grylii Doniţă et all 1992 INTRODUCTION the association Calthetum laetae - Ligularietum sibiricae Ştefan 2007. Since 1990, the social situation in Romania The Trotuş River has its source upstream has changed in all fields, nature it self has not Făgetul de Sus village (Harghita County); the first escaped some of this influence, often negative stream, a tributary on the right side, located near the aspects have been reported, although the areas of village of Lunca de Sus, has a swampy area protected nature have increased. After 1-2 decades completely surrounded by spruce. Here there was from the decrease or even disappearance of identified an area with numerous specimens of anthropogenic influences on insignificant areas of Ligularia sibiricaand other rare plants. It is an easily low-quality agricultural land, there was an accessible area, surrounded by forest and pasture, but unexpected return of plant formations, which are not which has never been destroyed by the locals’ cattle. identical to those of the primary vegetation, but It currently benefits from the existence of a small which have many elements in common. These electric fence. natural experiments have transformed agricultural Regarding research history in these places, we lands without economic yield into transitional can mention that two more such areas were cited, one meadows which, after 2-3 decades, also came to nearby, in Făgeţel (Ghergheli şi Raţiu, 1974; Palfalvi include extensive scrubland regions. -
Common Reed Phragmites Australis (Cav.) Trin. Ex Steud. Grass Family (Poaceae)
FACT SHEET: GIANT REED Common Reed Phragmites australis (Cav.) Trin. ex Steud. Grass family (Poaceae) NATIVE RANGE Eurasia DESCRIPTION Common reed, or Phragmites, is a tall, perennial grass that can grow to over 15 feet in height. In North America, both native phragmites (Phragmites australis ssp. americanus Saltonstall, P.M. Peterson & Soreng) and introduced subspecies are found. Introduced Phragmites forms dense stands which include both live stems and standing dead stems from previous year’s growth. Leaves are elongate and typically 1-1.5 inches wide at their widest point. Flowers form bushy panicles in late July and August and are usually purple or golden in color. As seeds mature, the panicles begin to look “fluffy” due to the hairs on the seeds and they take on a grey sheen. Below ground, Phragmites forms a dense network of roots and rhizomes which can go down several feet in depth. The plant spreads horizontally by sending out rhizome runners which can grow 10 or more feet in a single growing season if conditions are optimal. Please see the table below for information on distinguishing betweeen native and introduced Phragmites. ECOLOGICAL THREAT Once introduced Phragmites invades a site it quickly can take over a marsh community, crowding out native plants, changing marsh hydrology, altering wildlife habitat, and increasing fire potential. Its high biomass blocks light to other plants and occupies all the growing space belowground so plant communities can turn into a Phragmites monoculture very quickly. Phragmites can spread both by seed dispersal and by vegetative spread via fragments of rhizomes that break off and are transported elsewhere. -
<I>Carthamus Tinctorius</I>
Promoting the conservation and use of underutilized and neglected crops. 7. SafflowerSafflower Carthamus tinctorius L. Li Dajue and Hans-Henning Mündel netic t Ge Res lan ou P rc al e n s o I ti n a s t n i r t u e t t e n I IPGRI 2 Safflower. Carthamus tinctorius L. The International Plant Genetic Resources Institute (IPGRI) is an autonomous inter- national scientific organization operating under the aegis of the Consultative Group on International Agricultural Research (CGIAR). The international status of IPGRI is conferred under an Establishment Agreement which, by December 1995, had been signed by the Governments of Australia, Belgium, Benin, Bolivia, Burkina Faso, Cameroon, China, Chile, Congo, Costa Rica, Côte d’Ivoire, Cyprus, Czech Republic, Denmark, Ecuador, Egypt, Greece, Guinea, Hungary, India, Iran, Israel, Italy, Jordan, Kenya, Mauritania, Morocco, Pakistan, Panama, Peru, Poland, Portugal, Romania, Russia, Senegal, Slovak Republic, Sudan, Switzerland, Syria, Tunisia, Turkey, Ukraine and Uganda. IPGRI’s mandate is to advance the conservation and use of plant genetic resources for the benefit of present and future generations. IPGRI works in partner- ship with other organizations, undertaking research, training and the provision of scientific and technical advice and information, and has a particularly strong programme link with the Food and Agriculture Organization of the United Nations. Financial support for the agreed research agenda of IPGRI is provided by the Gov- ernments of Australia, Austria, Belgium, Canada, China, Denmark, France, Ger- many, India, Italy, Japan, the Republic of Korea, Mexico, the Netherlands, Norway, Spain, Sweden, Switzerland, the UK and the USA, and by the Asian Development Bank, IDRC, UNDP and the World Bank. -
Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi
The University of Southern Mississippi The Aquila Digital Community Honors Theses Honors College Spring 5-2016 Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi Hanna M. Miller University of Southern Mississippi Follow this and additional works at: https://aquila.usm.edu/honors_theses Part of the Biodiversity Commons, and the Botany Commons Recommended Citation Miller, Hanna M., "Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi" (2016). Honors Theses. 389. https://aquila.usm.edu/honors_theses/389 This Honors College Thesis is brought to you for free and open access by the Honors College at The Aquila Digital Community. It has been accepted for inclusion in Honors Theses by an authorized administrator of The Aquila Digital Community. For more information, please contact [email protected]. The University of Southern Mississippi Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi by Hanna Miller A Thesis Submitted to the Honors College of The University of Southern Mississippi in Partial Fulfillment of the Requirement for the Degree of Bachelor of Science in the Department of Biological Sciences May 2016 ii Approved by _________________________________ Mac H. Alford, Ph.D., Thesis Adviser Professor of Biological Sciences _________________________________ Shiao Y. Wang, Ph.D., Chair Department of Biological Sciences _________________________________ Ellen Weinauer, Ph.D., Dean Honors College iii Abstract The North American Coastal Plain contains some of the highest plant diversity in the temperate world. However, most of the region has remained unstudied, resulting in a lack of knowledge about the unique plant communities present there. -
Untangling Phylogenetic Patterns and Taxonomic Confusion in Tribe Caryophylleae (Caryophyllaceae) with Special Focus on Generic
TAXON 67 (1) • February 2018: 83–112 Madhani & al. • Phylogeny and taxonomy of Caryophylleae (Caryophyllaceae) Untangling phylogenetic patterns and taxonomic confusion in tribe Caryophylleae (Caryophyllaceae) with special focus on generic boundaries Hossein Madhani,1 Richard Rabeler,2 Atefeh Pirani,3 Bengt Oxelman,4 Guenther Heubl5 & Shahin Zarre1 1 Department of Plant Science, Center of Excellence in Phylogeny of Living Organisms, School of Biology, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran 2 University of Michigan Herbarium-EEB, 3600 Varsity Drive, Ann Arbor, Michigan 48108-2228, U.S.A. 3 Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, P.O. Box 91775-1436, Mashhad, Iran 4 Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 40530 Göteborg, Sweden 5 Biodiversity Research – Systematic Botany, Department of Biology I, Ludwig-Maximilians-Universität München, Menzinger Str. 67, 80638 München, Germany; and GeoBio Center LMU Author for correspondence: Shahin Zarre, [email protected] DOI https://doi.org/10.12705/671.6 Abstract Assigning correct names to taxa is a challenging goal in the taxonomy of many groups within the Caryophyllaceae. This challenge is most serious in tribe Caryophylleae since the supposed genera seem to be highly artificial, and the available morphological evidence cannot effectively be used for delimitation and exact determination of taxa. The main goal of the present study was to re-assess the monophyly of the genera currently recognized in this tribe using molecular phylogenetic data. We used the sequences of nuclear ribosomal internal transcribed spacer (ITS) and the chloroplast gene rps16 for 135 and 94 accessions, respectively, representing all 16 genera currently recognized in the tribe Caryophylleae, with a rich sampling of Gypsophila as one of the most heterogeneous groups in the tribe. -
Ajo Peak to Tinajas Altas: a Flora of Southwestern Arizona
Felger, R.S., S. Rutman, and J. Malusa. 2014. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona. Part 6. Poaceae – grass family. Phytoneuron 2014-35: 1–139. Published 17 March 2014. ISSN 2153 733X AJO PEAK TO TINAJAS ALTAS: A FLORA OF SOUTHWESTERN ARIZONA Part 6. POACEAE – GRASS FAMILY RICHARD STEPHEN FELGER Herbarium, University of Arizona Tucson, Arizona 85721 & Sky Island Alliance P.O. Box 41165, Tucson, Arizona 85717 *Author for correspondence: [email protected] SUSAN RUTMAN 90 West 10th Street Ajo, Arizona 85321 JIM MALUSA School of Natural Resources and the Environment University of Arizona Tucson, Arizona 85721 [email protected] ABSTRACT A floristic account is provided for the grass family as part of the vascular plant flora of the contiguous protected areas of Organ Pipe Cactus National Monument, Cabeza Prieta National Wildlife Refuge, and the Tinajas Altas Region in southwestern Arizona. This is the second largest family in the flora area after Asteraceae. A total of 97 taxa in 46 genera of grasses are included in this publication, which includes ones established and reproducing in the modern flora (86 taxa in 43 genera), some occurring at the margins of the flora area or no long known from the area, and ice age fossils. At least 28 taxa are known by fossils recovered from packrat middens, five of which have not been found in the modern flora: little barley ( Hordeum pusillum ), cliff muhly ( Muhlenbergia polycaulis ), Paspalum sp., mutton bluegrass ( Poa fendleriana ), and bulb panic grass ( Zuloagaea bulbosa ). Non-native grasses are represented by 27 species, or 28% of the modern grass flora. -
Publications of Peter H. Raven
Peter H. Raven LIST OF PUBLICATIONS 1950 1. 1950 Base Camp botany. Pp. 1-19 in Base Camp 1950, (mimeographed Sierra Club report of trip). [Upper basin of Middle Fork of Bishop Creek, Inyo Co., CA]. 1951 2. The plant list interpreted for the botanical low-brow. Pp. 54-56 in Base Camp 1951, (mimeographed Sierra Club report of trip). 3. Natural science. An integral part of Base Camp. Pp. 51-52 in Base Camp 1951, (mimeographed Sierra Club report of trip). 4. Ediza entomology. Pp. 52-54 in Base Camp 1951, (mimeographed Sierra Club report of trip). 5. 1951 Base Camp botany. Pp. 51-56 in Base Camp 1951, (mimeographed Sierra Club report of trip). [Devils Postpile-Minaret Region, Madera and Mono Counties, CA]. 1952 6. Parsley for Marin County. Leafl. West. Bot. 6: 204. 7. Plant notes from San Francisco, California. Leafl. West. Bot. 6: 208-211. 8. 1952 Base Camp bird list. Pp. 46-48 in Base Camp 1952, (mimeographed Sierra Club report of trip). 9. Charybdis. Pp. 163-165 in Base Camp 1952, (mimeographed Sierra Club report of trip). 10. 1952 Base Camp botany. Pp. 1-30 in Base Camp 1952, (mimeographed Sierra Club report of trip). [Evolution Country - Blaney Meadows - Florence Lake, Fresno, CA]. 11. Natural science report. Pp. 38-39 in Base Camp 1952, (mimeographed Sierra Club report of trip). 1953 12. 1953 Base Camp botany. Pp. 1-26 in Base Camp 1953, (mimeographed Sierra Club report of trip). [Mono Recesses, Fresno Co., CA]. 13. Ecology of the Mono Recesses. Pp. 109-116 in Base Camp 1953, (illustrated by M. -
Agri-Environment Nectar Chemistry Suppresses Parasite Social Epidemiology in an 2 Important Pollinator
bioRxiv preprint doi: https://doi.org/10.1101/2021.01.30.428928; this version posted February 1, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Agri-environment nectar chemistry suppresses parasite social epidemiology in an 2 important pollinator (1,#) (2) (2) (2,3) (1) 3 Arran J. Folly* , Hauke Koch , Iain W. Farrell , Philip C. Stevenson , Mark J.F. Brown 4 (1) Centre for Ecology, Evolution and Behaviour, Department of Biological Sciences, School of Life Sciences and the Environment, Royal 5 Holloway University of London, Egham, UK (2) Royal Botanic Gardens, Kew, UK (3) Natural Resources Institute, University of Greenwich, 6 Kent, UK 7 8 *Corresponding author: Arran J. Folly: [email protected] 9 #Current address: Virology Department, Animal and Plant Health Agency, Surrey, UK 10 11 Emergent infectious diseases are a principal driver of biodiversity loss globally. The population 12 and range declines of a suite of North American bumblebees, a group of important pollinators, 13 have been linked to emergent infection with the microsporidian Nosema bombi. Previous work 14 has shown that phytochemicals in pollen and nectar can negatively impact parasites in individual 15 bumblebees, but how this relates to social epidemiology and by extension whether plants can be 16 effectively used as disease management strategies remains unexplored. Here we show that 17 caffeine, identified in the nectar of Sainfoin, a constituent of agri-environment schemes, 18 significantly reduced N. -
Updated Crosswalks, Formal Query Routines and Indicator Species Of
Updated crosswalks, formal query routines and indicator species of the revised EUNIS Habitat Classification with the European Vegetation Classification for vegetated man-made habitats and aligning of crosswalks between European Red List habitats and Annex I habitats with crosswalks between EUNIS habitats and Annex I habitats Joop H.J. Schaminée Milan Chytrý Stephan M. Hennekens John A.M. Janssen Ilona Knollová Zdeňka Lososová Corrado Marcenò Lubomír Tichý and data providers Reference: 3417/B2019/EEA6 Framework Contract: EEA/NSS/17/002/Lot 1 1 Wageningen Environmental Research (WENR, Alterra), Institute within the legal entity Stichting Dienst Landbouwkundig Onderzoek Professor Joop H.J. Schaminée Stephan M. Hennekens Doctor John A.M. Janssen Partners Professor Milan Chytrý, Masaryk University, Brno, Czech Republic Associate Professor Zdeňka Lososová, Masaryk University, Brno, Czech Republic Doctor Ilona Knollová, Masaryk University, Brno, Czech Republic Doctor Corrado Marcenò, Masaryk University, Brno, Czech Republic Associate Professor Lubomír Tichý, Masaryk University, Brno, Czech Republic Date: 11 March 2020 Wageningen Environmental Research (WENR) P.O. Box 47 6700 AA Wageningen (NL) Telephone: +31-317480700 In 2003 Alterra implemented a certified quality management system, according to the standard ISO 9001:2008. Since 2006 Alterra works with a certified environmental care system according to the standard ISO 14001: 2004. © Stichting Dienst Landbouwkundig Onderzoek All rights reserved. No part of this document may be reproduced, stored