Center for Biological Diversity

For Immediate Release, August 26, 2019


Ryan Shannon, (503) 283-5474 x 407,

Lawsuit Launched to Protect Habitat for 23 Imperiled Micronesian Species

Safeguards Needed to Protect Species Devastated by Habitat Destruction

PORTLAND, Ore.— The Center for Biological Diversity today filed a notice of intent to sue the Trump administration for failing to protect critical habitat for 23 endangered species in the U.S. Commonwealth of the Northern Mariana Islands, the U.S. Territory of Guam, the Republic of Palau and the Federated States of Micronesia.

The wildlife involved include 14 plants and nine animals. These species, such as the Pacific sheath-tailed bat and Slevin’s skink, desperately need protected habitat. They are at immediate risk from agricultural and urban sprawl, military expansion and training, invasive species, fire, typhoons, sea-level rise and climate change.

“Unique Pacific Island species like the Mariana eight-spot butterfly needed habitat protection years ago, but they’re not getting it from the Trump administration,” said Ryan Shannon, a staff attorney at the Center for Biological Diversity. “The federal government and different military branches have been responsible for a lot of the problems on these islands. Our nation has a duty to protect the natural heritage of these special places.”

In 2015 the U.S. Fish and Wildlife Service listed 23 plant and animal species in greater Micronesia as endangered or threatened. The Endangered Species Act requires the Fish and Wildlife Service to designate critical habitat for any threatened and endangered species, but the agency has failed to designate critical habitat for any of these species.

“Species with designated critical habitat are twice as likely to be recovering as those without it,” Shannon said. “To save these animals and plants from extinction, we have to protect the places where they live.”

Listing a species as endangered or threatened is just the first step in ensuring a species’ survival and recovery. Critical habitat protections would prohibit federal actions that would destroy or harm such habitat and will help conserve what remains of these species’ limited native range.

Pacific sheath-tailed bat:
This tiny insectivorous, sac-winged bat has already been extirpated from Guam and the island of Vanuatu. Across its remaining range, it is threatened by habitat destruction from nonnative species, development, military training, urbanization, typhoons and climate change.

Slevin’s skink: Also known as the Mariana skink, this social creature has already been extirpated from Guam. The rest of its range is also threatened by habitat destruction from nonnative species, development, military training, urbanization, typhoons and climate change. Military training puts the skink at risk of direct harm from live-fire training exercises.

Mariana eight-spot butterfly: Native to Guam and Saipan, the butterfly is no longer found on Saipan. It is reliant on two host plant species, one of which is used as a native medicinal plant to treat various ailments. In addition to being threatened by parasitic wasps, the butterfly’s habitat is similarly threatened by nonnative species, development, military training, urbanization, typhoons and climate change.

Guam tree snail: Found only in Guam, this once-common, air-breathing snail is now critically endangered. In addition to the common habitat threats listed above, the Guam tree snail is threatened by fire and overcollection for commercial and recreational purposes.

Bulbophyllum guamense: Part of the Guam Plant Extinction Prevention Program, this orchid has a greenish-yellow flower that smells faintly of carrion. In the past the plant occurred in common large mat-like formations on trees. However, in addition to habitat-based threats, the orchid is being hurt by predation from non-native slugs.

Pacific sheath-tailed bat by Ernest Valdez, USGS. Images are available for media use.

The Center for Biological Diversity is a national, nonprofit conservation organization with more than 1.6 million members and online activists dedicated to the protection of endangered species and wild places.

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