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Critically Endangered - Wikipedia
Critically endangered - Wikipedia Not logged in Talk Contributions Create account Log in Article Talk Read Edit View history Critically endangered From Wikipedia, the free encyclopedia Main page Contents This article is about the conservation designation itself. For lists of critically endangered species, see Lists of IUCN Red List Critically Endangered Featured content species. Current events A critically endangered (CR) species is one which has been categorized by the International Union for Random article Conservation status Conservation of Nature (IUCN) as facing an extremely high risk of extinction in the wild.[1] Donate to Wikipedia by IUCN Red List category Wikipedia store As of 2014, there are 2464 animal and 2104 plant species with this assessment, compared with 1998 levels of 854 and 909, respectively.[2] Interaction Help As the IUCN Red List does not consider a species extinct until extensive, targeted surveys have been About Wikipedia conducted, species which are possibly extinct are still listed as critically endangered. IUCN maintains a list[3] Community portal of "possibly extinct" CR(PE) and "possibly extinct in the wild" CR(PEW) species, modelled on categories used Recent changes by BirdLife International to categorize these taxa. Contact page Contents Tools Extinct 1 International Union for Conservation of Nature definition What links here Extinct (EX) (list) 2 See also Related changes Extinct in the Wild (EW) (list) 3 Notes Upload file Threatened Special pages 4 References Critically Endangered (CR) (list) Permanent -
The Lesser Antilles Incuding Trinidad
The brilliant Lesser Antillean Barn Owl again showed superbly. One of several potential splits not yet recognized by the IOC (Pete Morris) THE LESSER ANTILLES INCUDING TRINIDAD 5 – 20/25 JUNE 2015 LEADERS: PETE MORRIS After our successful tour around the Caribbean in 2013, it was great to get back again this year. It all seemed pretty straightforward this time around, and once again we cleaned up on all of the available endemics, po- 1 BirdQuest Tour Report:The Lesser Antilles www.birdquest-tours.com The fabulous White-breasted Thrasher from Martinique (Pete Morris) tential splits and other goodies. For sure, this was no ordinary Caribbean holiday! During the first couple of weeks we visited no fewer than ten islands (Antigua, Barbuda, Montserrat, Dominica, Guadeloupe, Martinique, St Lucia, St Vincent, Barbados and Grenada), a logistical feat of some magnitude. With plenty of LIAT flights (the islanders refer to LIAT as ‘Leave Island any Time’ and ‘Luggage in Another Terminal’ to name but two of the many funny phrases coined from LIAT) and unreliable AVIS car hire reservations, we had our work cut out, but in the end, all worked out! It’s always strange birding on islands with so few targets, but with so many islands to pack-in, we were never really short of things to do. All of the endemics showed well and there were some cracking highlights, including the four smart endemic amazons, the rare Grenada Dove, the superb Lesser Antillean Barn Owl, the unique tremblers and White-breasted Thrashers, and a series of colourful endemic orioles to name just a few! At the end of the Lesser Antilles adventure we enjoyed a few days on Trinidad. -
Predation on Vertebrates by Neotropical Passerine Birds Leonardo E
Lundiana 6(1):57-66, 2005 © 2005 Instituto de Ciências Biológicas - UFMG ISSN 1676-6180 Predation on vertebrates by Neotropical passerine birds Leonardo E. Lopes1,2, Alexandre M. Fernandes1,3 & Miguel Â. Marini1,4 1 Depto. de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-910, Belo Horizonte, MG, Brazil. 2 Current address: Lab. de Ornitologia, Depto. de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, 31270-910, Belo Horizonte, MG, Brazil. E-mail: [email protected]. 3 Current address: Coleções Zoológicas, Aves, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo, 2936, INPA II, 69083-000, Manaus, AM, Brazil. E-mail: [email protected]. 4 Current address: Lab. de Ornitologia, Depto. de Zoologia, Instituto de Biologia, Universidade de Brasília, 70910-900, Brasília, DF, Brazil. E-mail: [email protected] Abstract We investigated if passerine birds act as important predators of small vertebrates within the Neotropics. We surveyed published studies on bird diets, and information on labels of museum specimens, compiling data on the contents of 5,221 stomachs. Eighteen samples (0.3%) presented evidence of predation on vertebrates. Our bibliographic survey also provided records of 203 passerine species preying upon vertebrates, mainly frogs and lizards. Our data suggest that vertebrate predation by passerines is relatively uncommon in the Neotropics and not characteristic of any family. On the other hand, although rare, the ability to prey on vertebrates seems to be widely distributed among Neotropical passerines, which may respond opportunistically to the stimulus of a potential food item. -
PETITION to LIST the Western Ridged Mussel
PETITION TO LIST The Western Ridged Mussel Gonidea angulata (Lea, 1838) AS AN ENDANGERED SPECIES UNDER THE U.S. ENDANGERED SPECIES ACT Photo credit: Xerces Society/Emilie Blevins Submitted by The Xerces Society for Invertebrate Conservation Prepared by Emilie Blevins, Sarina Jepsen, and Sharon Selvaggio August 18, 2020 The Honorable David Bernhardt Secretary, U.S. Department of Interior 1849 C Street, NW Washington, DC 20240 Dear Mr. Bernhardt: The Xerces Society for Invertebrate Conservation hereby formally petitions to list the western ridged mussel (Gonidea angulata) as an endangered species under the Endangered Species Act, 16 U.S.C. § 1531 et seq. This petition is filed under 5 U.S.C. 553(e) and 50 CFR 424.14(a), which grants interested parties the right to petition for issue of a rule from the Secretary of the Interior. Freshwater mussels perform critical functions in U.S. freshwater ecosystems that contribute to clean water, healthy fisheries, aquatic food webs and biodiversity, and functioning ecosystems. The richness of aquatic life promoted and supported by freshwater mussel beds is analogous to coral reefs, with mussels serving as both structure and habitat for other species, providing and concentrating food, cleaning and clearing water, and enhancing riverbed habitat. The western ridged mussel, a native freshwater mussel species in western North America, once ranged from San Diego County in California to southern British Columbia and east to Idaho. In recent years the species has been lost from 43% of its historic range, and the southern terminus of the species’ distribution has contracted northward approximately 475 miles. Live western ridged mussels were not detected at 46% of the 87 sites where it historically occurred and that have been recently revisited. -
Bird) Species List
Aves (Bird) Species List Higher Classification1 Kingdom: Animalia, Phyllum: Chordata, Class: Reptilia, Diapsida, Archosauria, Aves Order (O:) and Family (F:) English Name2 Scientific Name3 O: Tinamiformes (Tinamous) F: Tinamidae (Tinamous) Great Tinamou Tinamus major Highland Tinamou Nothocercus bonapartei O: Galliformes (Turkeys, Pheasants & Quail) F: Cracidae Black Guan Chamaepetes unicolor (Chachalacas, Guans & Curassows) Gray-headed Chachalaca Ortalis cinereiceps F: Odontophoridae (New World Quail) Black-breasted Wood-quail Odontophorus leucolaemus Buffy-crowned Wood-Partridge Dendrortyx leucophrys Marbled Wood-Quail Odontophorus gujanensis Spotted Wood-Quail Odontophorus guttatus O: Suliformes (Cormorants) F: Fregatidae (Frigatebirds) Magnificent Frigatebird Fregata magnificens O: Pelecaniformes (Pelicans, Tropicbirds & Allies) F: Ardeidae (Herons, Egrets & Bitterns) Cattle Egret Bubulcus ibis O: Charadriiformes (Sandpipers & Allies) F: Scolopacidae (Sandpipers) Spotted Sandpiper Actitis macularius O: Gruiformes (Cranes & Allies) F: Rallidae (Rails) Gray-Cowled Wood-Rail Aramides cajaneus O: Accipitriformes (Diurnal Birds of Prey) F: Cathartidae (Vultures & Condors) Black Vulture Coragyps atratus Turkey Vulture Cathartes aura F: Pandionidae (Osprey) Osprey Pandion haliaetus F: Accipitridae (Hawks, Eagles & Kites) Barred Hawk Morphnarchus princeps Broad-winged Hawk Buteo platypterus Double-toothed Kite Harpagus bidentatus Gray-headed Kite Leptodon cayanensis Northern Harrier Circus cyaneus Ornate Hawk-Eagle Spizaetus ornatus Red-tailed -
Robert Ridgway 1850-1929
NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA BIOGRAPHICAL MEMOIRS VOLUME XV SECOND MEMOIR BIOGRAPHICAL MEMOIR OF ROBERT RIDGWAY 1850-1929 BY ALEXANDER WETMORE PRESENTED TO THE ACADEMY AT THE ANNUAL MEETING, 1931 ROBERT RIDGWAY 1850-1929 BY ALEXANDER WETMORE Robert Ridgway, member of the National Academy of Science, for many years Curator of Birds in the United States National Museum, was born at Mount Carmel, Illinois, on July 2, 1850. His death came on March 25, 1929, at his home in Olney, Illinois.1 The ancestry of Robert Ridgway traces back to Richard Ridg- way of Wallingford, Berkshire, England, who with his family came to America in January, 1679, as a member of William Penn's Colony, to locate at Burlington, New Jersey. In a short time he removed to Crewcorne, Falls Township, Bucks County, Pennsylvania, where he engaged in farming and cattle raising. David Ridgway, father of Robert, was born March 11, 1819, in Harrisburg, Pennsylvania. During his infancy his family re- moved for a time to Mansfield, Ohio, later, about 1840, settling near Mount Carmel, Illinois, then considered the rising city of the west through its prominence as a shipping center on the Wabash River. Little is known of the maternal ancestry of Robert Ridgway except that his mother's family emigrated from New Jersey to Mansfield, Ohio, where Robert's mother, Henrietta James Reed, was born in 1833, and then removed in 1838 to Calhoun Praifle, Wabash County, Illinois. Here David Ridgway was married on August 30, 1849. Robert Ridgway was the eldest of ten children. -
Recovery Strategy for the Woodland Caribou (Rangifer Tarandus Caribou), Boreal Population, in Canada
PROPOSED Species at Risk Act Recovery Strategy Series Recovery Strategy for the Woodland Caribou (Rangifer tarandus caribou), Boreal Population, in Canada Woodland Caribou, Boreal Population 2011 Recommended citation: Environment Canada. 2011. Recovery Strategy for the Woodland Caribou, Boreal population (Rangifer tarandus caribou) in Canada [Proposed]. Species at Risk Act Recovery Strategy Series. Environment Canada, Ottawa. vi + 55 pp. For copies of the recovery strategy, or for additional information on species at risk, including COSEWIC Status Reports, residence descriptions, action plans, and other related recovery documents, please visit the Species at Risk Public Registry (www.sararegistry.gc.ca). Cover illustration : Courtesy Dr. Crichton Également disponible en français sous le titre « Programme de rétablissement du Caribou des bois (Rangifer tarandus caribou), Population boréale, au Canada » © Her Majesty the Queen in Right of Canada, represented by the Minister of the Environment, 2011. All rights reserved. ISBN Catalogue no. Content (excluding the illustrations) may be used without permission, with appropriate credit to the source. Recovery Strategy for the Woodland Caribou, Boreal Population 2011 PREFACE The federal, provincial, and territorial government signatories under the Accord for the Protection of Species at Risk (1996) agreed to establish complementary legislation and programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2002, c.29) (SARA), the federal competent ministers are responsible for the preparation of recovery strategies for listed Extirpated, Endangered, and Threatened species and are required to report on progress within five years. The Minister of the Environment is the competent Minister for this recovery strategy. -
The Phylogenetic Relationships and Generic Limits of Finches
Molecular Phylogenetics and Evolution 62 (2012) 581–596 Contents lists available at SciVerse ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev The phylogenetic relationships and generic limits of finches (Fringillidae) ⇑ Dario Zuccon a, , Robert Pryˆs-Jones b, Pamela C. Rasmussen c, Per G.P. Ericson d a Molecular Systematics Laboratory, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden b Bird Group, Department of Zoology, Natural History Museum, Akeman St., Tring, Herts HP23 6AP, UK c Department of Zoology and MSU Museum, Michigan State University, East Lansing, MI 48824, USA d Department of Vertebrate Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden article info abstract Article history: Phylogenetic relationships among the true finches (Fringillidae) have been confounded by the recurrence Received 30 June 2011 of similar plumage patterns and use of similar feeding niches. Using a dense taxon sampling and a com- Revised 27 September 2011 bination of nuclear and mitochondrial sequences we reconstructed a well resolved and strongly sup- Accepted 3 October 2011 ported phylogenetic hypothesis for this family. We identified three well supported, subfamily level Available online 17 October 2011 clades: the Holoarctic genus Fringilla (subfamly Fringillinae), the Neotropical Euphonia and Chlorophonia (subfamily Euphoniinae), and the more widespread subfamily Carduelinae for the remaining taxa. Keywords: Although usually separated in a different -
The Feeding Ecology of Tanagers and Honeycreepers in Trinidad
THE FEEDING ECOLOGY OF TANAGERS AND HONEYCREEPERS IN TRINIDAD B^•B^•^ K. S•ow ^•r• D. W. S•ow Dtmi•G the last 131/2months of our 41/2-years' residence in Trinidad (August 1960 to September 1961) we kept systematicrecords of the feedingbehavior of the commonertanagers and honeycreepers.By this time, besidesknowing the bird specieswell, we had learned to identify most of the trees and shrubs,particularly those in the northern mountain range where we lived. The correct systematictreatment of the tanagersand honeycreepersis still uncertain. Formerly they were separated as Thraupidae and Coerebidae,but Beecher (1951) argued that the Coerebidaeare a hetero- geneousgroup and recommendedplacing Coereba and Conirostrumwith the Parulidaeand the otherswith the Thraupidae. Whatevertheir correct systematicarrangement, they form a natural ecologicalgroup of small to medium-sized birds of wooded habitats that take a mixed diet of insects and fruit, with somenectar. The tanagersare structurally unspecialized as a group, but the honeycreepersin beak and tongue are to some extent specializedfor nectar-eating. As fruit-eaters,both tanagersand honey- creeperstypically exploit the smaller, succulent fruits of trees, shrubs, and vines,and are ecologicallyquite distinct from the larger, specialized fruit-eating birds that exploit the larger and more nutritious fruits of palms,Lauraceae, Burseraceae, and someother tree families (Snow, 1971). They are commonand conspicuousbirds of the neotropicalforests, where many speciescoexist, frequently with little obviousecological -
The Species at Risk Act: an Overview
THE SPECIES AT RISK ACT: AN OVERVIEW Report No. 408 ISBN: 1-894158-47-4 Prepared by: Richard D. Lindgren September 25, 2001 CANADIAN ENVIRONMENTAL LAW ASSOCIATION L’ASSOCIATION CANADIENNE DU DROIT DE L’ENVIRONNEMENT 517 COLLEGE STREET + SUITE 401 + TORONTO, ONTARIO + M6G 4A2 TEL: 416/960-2284 + FAX 416/960-9392 + E-MAIL: [email protected] www.cela.ca TABLE OF CONTENTS PART I – INTRODUCTION ....................................................................................................... 2 PART II – BACKGROUND: THE RATIONALE FOR REFORM ........................................ 4 (a) Why Protect Species At Risk?................................................................................................4 (b) Canada’s Legal and Policy Framework for Protecting Species at Risk................................. 7 (c) Constitutional Basis for the SARA....................................................................................... 11 PART III – OVERVIEW OF THE SPECIES AT RISK ACT ................................................. 13 (a) Species Assessment and the Listing Process........................................................................ 14 (b) Protection of Species and Residences .................................................................................. 16 (c) Recovery and Management Planning................................................................................... 19 (d) Public Involvement and Citizen Action ............................................................................... 21 PART IV – CONCLUSIONS -
Next up for Texas?
JANUARY PHOTO QUIZ ANSWERS Next up for Texas? ’ve heard the call of southern North America for a long time. When I was Ia kid, the electric colors of birds like Pink-headed Warbler, Red-breasted Chat, and Lesser Ground-Cuckoo seemed to jump off the page of my Pe - terson and Chalif Mexico guide. By junior high, I had decided that if I wanted to have any chance of seeing all these crazy, little-known birds when I grew up, I needed to sign up for fresh - man Spanish. Once I got into college and headed south with friends one Christmas vacation, there was no look - ing back. I was hooked. That first trip into northeast Mexico was an eye-opener. At a random stop Quiz Photo A—September. alongside the road not far south of Brownsville, and out of what seemed inadequate, dry scrubby habitat popped a glorious ball of laven - Quiz Photo A der, blue, and black with a yellow handkerchief: a It is this last group to which Quiz Bird A belongs. Yellow-winged Tanager. If this bird could exist here , If you’re like most North American birders, you’re would it be much longer before one flew another thinking, “He’s kidding, right? That’s obviously a 120 miles north across identical habitat to rest at Sulphur-bellied Flycatcher. They migrate, and Santa Ana National Wildlife Refuge or a backyard nothing else looks like it.” Well, almost. There are in suburban Brownsville? Ever since, I’ve been in - two smaller lookalikes: Variegated and Piratic Fly - terested in how close many “Mexican” species catchers, both considered to be of casual occur - come to the U.S. -
Gonidea Angulata (Lea, 1838) Western Ridged Mussel Bivalvia: Unionidae
Gonidea angulata (Lea, 1838) Western ridged mussel Bivalvia: Unionidae Profile prepared by Sarina Jepsen, Caitlin LaBar and Jennifer Zarnoch The Xerces Society for Invertebrate Conservation SUMMARY The western ridged mussel (Gonidea angulata) is widely distributed from southern British Columbia to southern California, and can be found east to Idaho and Nevada. G. angulata inhabits cold creeks and streams from low to mid-elevations. Hardhead, Pit sculpin and Tule perch are documented fish hosts for G. angulata in northern California, although little is known about the fish species that serve as hosts for this mussel throughout other parts of its range. G. angulata is sedentary as an adult and probably lives for 20-30 years, and thus can be an important indicator of habitat quality. G. angulata is a filter feeder that consumes plankton and other suspended solids, nutrients and contaminants from the water column. The large beds of G. angulata can improve water quality by reducing turbidity and controlling nutrient levels. Some Native American tribes historically harvested this animal and used it for food, tools and adornment. Populations of G. angulata have likely been extirpated in central and southern California, and it has probably declined in abundance in numerous watersheds, including the Columbia and Snake River watersheds in Washington and Oregon. The western ridged mussel belongs to a monotypic genus and thus should be considered a high priority for conservation. Lack of information on the western ridged mussel’s current and historical abundance and distribution, and a lack of understanding of which host fish species it uses will impede conservation efforts.