Guam National Wildlife Refuge

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Guam National Wildlife Refuge
IUCN category IV (habitat/species management area)
Ritidian Beach - Guam NWR.jpg
The beach off Ritidian Point
USA Guam satellite image location map.jpg
Red pog.svg
Ritidian Point Unit
Location Dededo / Yigo, Guam, United States
Nearest city Dededo, Guam / Yigo, Guam
Coordinates 13°39′2″N144°51′38″E / 13.65056°N 144.86056°E / 13.65056; 144.86056
Area23,659 acres (95.74 km2) total
23,288 acres (94.24 km2) land
371 acres (1.50 km2) reefs and ocean [1]
Established1993
Visitors90,000
Governing body Department of Defense 22,456 acres (90.88 km2); Fish and Wildlife Service 1,203 acres (4.87 km2)
Website Guam National Wildlife Refuge

The Guam National Wildlife Refuge is composed of three units: the Andersen Air Force Base Overlay Unit (Air Force Overlay Unit), the Navy Overlay Unit, and the Ritidian Unit. The Ritidian Unit, known to the native CHamoru people as Puntan Litekyan, is located on the northern tip of Guam and encompasses approximately 1,217 acres, including 385 terrestrial acres and 832 acres of submerged areas offshore.

Contents

Description

Ritidian Unit

The endangered Mariana fruit bat or flying fox Mariana Fruit Bat.jpg
The endangered Mariana fruit bat or flying fox

The Ritidian Unit is at the far northern point of Guam and is the only unit open to the public. It was established in 1993, in response to the 1984 listing of six species as endangered, and was designated critical habitat in 2004 for three of these species: the Mariana fruit bat, the Guam Micronesian Kingfisher, and the Mariana crow. The Navy used the area as a high-security communications station throughout the Cold War and donated the 1,203 acres (4.87 km2) of land to the Fish and Wildlife Service in 1993. Guam's Delegate to Congress at that time, Robert A. Underwood, objected to the transfer as a violation of indigenous Chamorro land rights for not returning the property to the pre-military owners. [2] Sailors from the USS Frank Cable continued the Navy connection by volunteering and creating a nature path for visitors. [3] The Ritidian Unit offices and beaches close to the public at 4 PM every day. They are also closed any time the Guam Homeland Security Office of Civil Defense issues a tropical cyclone condition of readiness 3, 2, or 1. Additionally, the beaches are closed to the public during tropical storm warnings issued by the National Weather Service. [4]

Ritidian Point contains the archaeological site of a pre-Magellan Chamorro village, a former barrier reef that is now a 500-foot limestone cliff and beaches where threatened green sea turtles nest. [5] This area is the only designated critical habitat in Guam because it was home to some of the last confirmed populations of the Mariana fruit bat, Guam kingfisher, Mariana common moorhen and Mariana crow. [6] The accidental introduction of the brown tree snake is considered the primary cause for the decline of native Guam bird species. [7]

Military overlay units

There are two additional units, one on Andersen Air Force Base and a grouping of non-contiguous lands on Navy properties collectively called the Navy Overlay Unit. In total, the military owns 95% of the Refuge, 22,456 acres (90.88 km2), and does not allow tourism. The purposes of the Refuge’s Navy and Air Force Overlay Units are separate from the purposes of the Ritidian Unit and are specified in Cooperative Agreements with the US Fish & Wildlife Service. The areas are considered an overlay because military needs take precedence but the Fish & Wildlife Service has consulting rights. [8] The areas may face additional stress because of the movement of troops from Okinawa.

These units are largely forested and the main preservation initiative involves the Serianthes nelsonii tree. The critically endangered plant is endemic to the southern Marianas Islands and only one mature tree is known in Guam. Efforts to plant new seedlings have been coordinated through the University of Guam. [9]

Important Bird Area

Much of the refuge has been recognized as an Important Bird Area (IBA) by BirdLife International because it supports populations of Mariana swiftlets, Guam rails, Mariana crows and Micronesian starlings, as well as containing habitat for Guam kingfishers. [10]

See also

Related Research Articles

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<span class="mw-page-title-main">Bosque del Apache National Wildlife Refuge</span> Wildlife refuge in New Mexico, USA

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<span class="mw-page-title-main">Chamorro people</span> Indigenous people of the Mariana Islands

The Chamorro people are the Indigenous people of the Mariana Islands, politically divided between the United States territory of Guam and the encompassing Commonwealth of the Northern Mariana Islands in Micronesia, a commonwealth of the US. Today, significant Chamorro populations also exist in several U.S. states, including Hawaii, California, Washington, Texas, Tennessee, Oregon, and Nevada, all of which together are designated as Pacific Islander Americans according to the U.S. Census. According to the 2000 Census, about 64,590 people of Chamorro ancestry live in Guam and another 19,000 live in the Northern Marianas.

The Micronesians or Micronesian peoples are various closely related ethnic groups native to Micronesia, a region of Oceania in the Pacific Ocean. They are a part of the Austronesian ethnolinguistic group, which has an Urheimat in Taiwan.

<span class="mw-page-title-main">Mariana mallard</span> Extinct species of bird

The Mariana mallard or Oustalet's duck is an extinct species of duck of the genus Anas that was endemic to the Mariana Islands. Its taxonomic status is debated, and it has variously been treated as a full species, a subspecies of the mallard or of the Pacific black duck, or sometimes as a subspecies of the Indian spot-billed duck.

<span class="mw-page-title-main">Guam rail</span> Species of bird

The Guam rail, known locally and in Chamorro as ko'ko', is a small, terrestrial bird in the Rallidae family. They are endemic of the island of Guam, and are one of the island's few remaining endemic bird species. The species became extinct in the wild in the early 1980s when biologists captured the remaining wild population. They have since been successfully reintroduced to Guam and introduced to the nearby Rota and Cocos islands. In 2019, the species became the second bird after the California condor to be reclassified by the IUCN from extinct in the wild to critically endangered.

<span class="mw-page-title-main">Mariana fruit bat</span> Species of bat

The Mariana fruit bat, also known as the Mariana flying fox, and the fanihi in Chamorro, is a megabat found only in the Mariana Islands and Ulithi. Habitat loss has driven it to endangered status, and it is listed as threatened by the US Fish and Wildlife Service. Poaching, habitat loss, and the introduction of invasive species have contributed to the species' decline.

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<span class="mw-page-title-main">Guam kingfisher</span> Species of bird from the US Territory of Guam

The Guam kingfisher, called sihek in Chamorro, is a species of kingfisher from the occupied United States Territory of Guam. It is restricted to a captive breeding program following its extinction in the wild due primarily to predation by the introduced brown tree snake.

<span class="mw-page-title-main">Mariana crow</span> Species of bird

The Mariana crow is a species of the crow family from the tropical Western Pacific. It is a glossy black bird about 15 inches (38 cm) long and known only from the islands of Guam and Rota.

<i>Serianthes nelsonii</i> Species of legume

Serianthes nelsonii is a large tree endemic to Guam and Rota of the Mariana Islands. Only one mature tree exists on Guam, while 121 mature trees have been identified on Rota since 1984.

<span class="mw-page-title-main">Bridled white-eye</span> Species of bird

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The Nomans Land Island Wildlife Refuge is a United States National Wildlife Refuge located on Nomans Land, a 640-acre (2.6 km2) island off the coast of Martha's Vineyard in Massachusetts. It is part of the town of Chilmark, in Dukes County. The Island is 1.6 miles (2.6 km) long east to west, and about 1 mile (1.6 km) north to south. Nomans Land Island was used for aerial gunnery by the U.S. Navy from 1942 to 1996. The United States Fish and Wildlife Service has managed an "overlay" refuge on the Eastern third of the Island under a Joint Management Agreement between the Department of the Interior and Department of the Navy since 1975. Following an extensive surface clearance of ordnance in 1997 and 1998, the Island was transferred to the United States Fish and Wildlife Service to become Nomans Land Island National Wildlife Refuge. It was established ". .. for use as an inviolate sanctuary, or for any other management purpose, for migratory birds" under the Migratory Bird Conservation Act.

Robert E. Beck Jr. was a zoologist and conservationist, who worked to save Guam's indigenous native birds from 1982 to 2003. Beck championed the fight to save Guam's native birds, such as the Mariana crow, rufous fantail, Guam flycatcher, Guam kingfisher and the Guam rail, known locally as ko'ko' in Chamorro, which are under the extreme threat of extinction due to the non-native brown tree snake and habitat loss. The rufous fantail and the Guam flycatcher listed above are now extinct in the wild in their native Guam. However, the captive and wild populations of the Mariana crow, Guam rail and the Micronesian kingfisher have increased, due in large part to conservation efforts by Beck.

<span class="mw-page-title-main">Marianas Trench Marine National Monument</span> US national monument in the Mariana Archipelago

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<span class="mw-page-title-main">Dededo</span> Village in Guam, United States

Dededo is the most populated village in the United States territory of Guam. According to the U.S. Census Bureau, Dededo's population was just under 45,000 in 2020. The village is located on the coral plateau of Northern Guam. The greater Dededo-Machanao-Apotgan Urban Cluster had a population of 139,825 as of the 2010 census, making up 87.7% of Guam's population and 29.8% of its area.

<span class="mw-page-title-main">Marianas tropical dry forests</span> Tropical dry broadleaf forests ecoregion of the Mariana Islands

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<span class="mw-page-title-main">Northwest Field</span> U.S. military installation on Guam

Northwest Field is a military airfield on the West Pacific island of Guam. Originally built during World War II, Northwest Field was closed as an airfield in 1949 but has been used for other military activity since, including housing a satellite tracking station, air defenses, and being used for training.

References

  1. Schwagerl, Joseph. "Guam National Wildlife Refuge". US Fish and Wildlife Service. Retrieved 2012-02-21.{{cite journal}}: Cite journal requires |journal= (help)
  2. "Guam National Wildlife Refuge Under Fire". Bats Magazine. Winter 1993. Retrieved 2012-02-21.{{cite journal}}: Cite journal requires |journal= (help)
  3. Hensley, Corey (2011-04-08). "Frank Cable Celebrates Trail Dedication At Guam National Wildlife Refuge". United States Navy. Retrieved 2012-02-21.{{cite journal}}: Cite journal requires |journal= (help)
  4. "Typhoons". Guam Homeland Security Office of Civil Defense. Retrieved 14 March 2015.
  5. Whitman, Frank (2007-06-03). "Ritidian Point: A gorgeous slice of tropical Guam". Stars and Stripes . Retrieved 2012-02-21.
  6. Maxfield, Barbara (2009-07-22). "Guam National Wildlife Refuge Draft Comprehensive Conservation Plan Released for Public Review and Comment" (PDF). US Fish and Wildlife Service. Retrieved 2012-02-21.{{cite journal}}: Cite journal requires |journal= (help)
  7. Pianka, Eric R.; King, Dennis; King, Ruth Allen. (2004). Varanoid Lizards of the World. Indiana University Press, 588 pages ISBN   0-253-34366-6
  8. "Welcome to Guam National Wildlife Refuge". US Fish and Wildlife Service. 2010-05-03. Retrieved 2012-02-21.{{cite journal}}: Cite journal requires |journal= (help)
  9. Serianthes nelsonii, poster by Agricultural Experiment Station, College of Agriculture and Life Sciences, University of Guam
  10. "Guam National Wildlife Refuge". BirdLife Data Zone. BirdLife International. 2021. Retrieved 7 February 2021.