FACTOID # 17: Senior gentlemen might consider a trip to Russia, where there are two women over 65 for every man.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     

  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

Encyclopedia > Guam Rail
Guam Rail
Conservation status: Extinct in the wild

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Rallidae
Genus: Rallus
Species: R. owstoni
Binomial name
Rallus owstoni
Walter Rothschild, 1895

The Guam Rail, Rallus owstoni, is a flightless bird, endemic to Guam. The Guam Rail disappeared from southern Guam in the early 1970s and was extirpated from the entire island by the late 1980s. This species is now being bred in captivity by the Division of Aquatic and Wildlife Resources on Guam and at some mainland U.S. zoos. Since 1995, more than 100 rails have been introduced on the island of Rota in the Commonwealth of the Northern Mariana Islands in an attempt to establish a wild breeding colony. Although at least one chick resulted from these efforts, predation (largely by feral cats) and accidental deaths have been extremely high. A small number of birds potentially persist. The conservation status of a species is an indicator of the likelihood of that species continuing to survive. ... Scientific classification - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Bilateria Acoelomorpha Orthonectida Rhombozoa ?Myxozoa Superphylum Deuterostomia    Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Many - see section below. ... Families  Otidae  Gruidae  Rallidae The diverse order Gruiformes contains about 12 bird families with, on first sight, little in common. ... Genera Sarothrura Himantornis Canirallus Coturnicops Micropygia Rallina Anurolimnas Laterallus Nesoclopeus Gallirallus Rallus Lewinia Dryolimnas Crex Rougetius Aramidopsis Atlantisia Aramides Amaurolimnas Gymnocrex Amaurornis Porzana Aenigmatolimnas Cyanolimnas Neocrex Pardirallus Eulabeornis Habroptila Megacrex Gallicrex Porphyrio Gallinula Fulica The family Rallidae is a large group of small to medium-sized birds which includes the... In biology, binomial nomenclature is a standard convention used for naming species. ... Lionel Walter Rothschild, 2nd Baron Rothschild (February 8, 1868 - August 27, 1937) was a British banker and zoologist from the international Rothschild financial dynasty. ... 1895 was a common year starting on Tuesday (see link for calendar). ... A zoo. ... Rota, also known as the peaceful island, is the southernmost island of the United States Commonwealth of the Northern Mariana Islands (CNMI). ... Trinomial name Felis silvestris catus Schreber, 1775 The cat (also called domestic cat or house cat) is a small feline carnivorous mammal. ...


A recent effort to introduce rails on Guam in a 22 hectare forested area concentrated on protecting the rails by limiting snakes using a combination of trapping and a perimetereter barrier to reduce re-invasion by snakes. This endeavor allowed the tentative survival of several pairs of rails released into the area. Reproduction by the rails was reported in this control area on the basis of sounds attributed to chicks. The preliminary success constitutes one of the few bright spots in the conservation of Guam's native fauna in recent years and speaks to future opportunities to recover wildlife. [1] (http://www.mesc.usgs.gov/resources/education/bts/impacts/birds.asp) A hectare (symbol ha) is a metric unit of surface area, equal to 100 ares (the name is a contraction of the SI prefix hecto + are). ...


Background

Beginning in the mid 1906's, the Brown Tree Snake decimated Guam's native avifauna. The birds of Guam evolved in the absence of snake predators. They had no experience with such a predator and lacked protective behaviors against the snake. Consequently, they were easy prey for these efficient, nocturnal predators. As the snakes spread across the island, the number of snakes began to grow exponentially and bird populations declined. For other meanings of bird, see bird (disambiguation). ...


Nine of the 11 species of native forest-dwelling birds have been extirpated from Guam. Five of these were endemic at the species or subspecies level and are now extinct on Guam. Two of these species, the Guam Rail and the Micronesian Kingfisher, are being captively bred in zoos in the hope that they can eventually be released back into the wild. Several other native species exist in precariously small numbers, and their future on Guam is perilous.


The history of this decline starts shortly after the introduction of the Brown Tree Snake, although appreciable losses were not evident until the 1960s. By 1963, several formerly abundant species of native birds had disappeared from the central part of the island where snakes were most populous. By the late 1960s, birds had begun to decline in the central and southern parts of the island and remained abundant only in isolated patches of forest on the northern end of the island. Snakes began affecting the birds in the north-central and extreme northern parts of the island in the 1970s and 1980s, respectively.


Most native forest species were virtually extinct when they were listed as threatened or endangered by the U.S. Fish and Wildlife Service in 1984. The USFWS logo The United States Fish and Wildlife Service is a unit of the United States Department of the Interior that is dedicated to managing and preserving wildlife. ...


External links


  Results from FactBites:
 
PI-Guam Rail (484 words)
The Guam Rail has a brown head, neck and eye stripe; near gray throat and upper breast; short wings that are dark with brownish spots and barred with white; lower breast, abdomen, under tail coverts, and tail are flish with white barrings; gray bill, long legs and dark brown feet; and red iris.
The Guam Rail is a secretive, flightless, territorial species that is most easily observed as it bathes or feeds along roadsides or field edges.
The rail is one of the few native birds of Guam that is found more frequently in scrubby second growth or mixed forest than in uniform tracts of mature forest, and might have been more abundant after the arrival of man than before.
San Diego Zoo's Animal Bytes: Guam Rail (564 words)
Guam rails are year-round ground nesters, producing up to 10 clutches a year.
Guam rails are omnivorous, although they do prefer animals instead of plants.
Rails at the Wild Animal Park and the San Diego Zoo are offered crickets, mealworm larvae, mice, dog chow, and a specialized meat mixture for zoo carnivores.
  More results at FactBites »


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.