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Guam National Wildlife Refuge Comprehensive Conservation Plan

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<strong>Guam</strong> <strong>National</strong> <strong>Wildlife</strong> <strong>Refuge</strong> <strong>Comprehensive</strong> <strong>Conservation</strong> <strong>Plan</strong><br />

Species Name Common Name Chamorro Name<br />

Protaetia orientalis oriental flower beetle<br />

Protaetia pryeri Midway emerald beetle<br />

Bactrocera cucurbitae melon fly<br />

Tetraleurodes acacia acacia whitefly<br />

Leptoglossus australis leaf-footed bug<br />

Physomerus grossipes spine-footed bug<br />

Aulacaspis yasumatsui Asian cycad scale<br />

Aphis mellifera honey bee<br />

Quadrastichus erythrinae erythrina gall wasp<br />

Campsomeris sp.<br />

Delta campaniforme yellow potter wasp<br />

Polistes olivaceous paper wasp<br />

Pareuchaetes pseudoinsulata<br />

Chilades pandava cycad blue butterfly<br />

Eudocima fullonia fruit-piercing moth<br />

Diaphania sp.<br />

Stenocatantops splendens short-horned grasshopper<br />

Pison, Sceliphron, and Chalybion sp. mud dauber wasps<br />

Formidae ant, up to 26 species<br />

Pest Mammals<br />

The flora and fauna of oceanic islands that have evolved without mammals have fared particularly<br />

poorly compared to those that have evolved with mammals. The feral pig (Sus scrofa) and<br />

Philippine deer (Cervus mariannus) were intentionally introduced to <strong>Guam</strong> for hunting between<br />

the late 1600s and 1700s (Conry 1988; Wiles et al. 1999). Arriving on <strong>Guam</strong> with no natural<br />

predators, both species proceeded to destroy native vegetation and increase vulnerability of the<br />

now open habitats to other species invasions (Morton et al. 2000). In the nearby area of Andersen<br />

AFB Munitions Storage Area 1, ungulate densities were reported to be 183 Philippine deer per<br />

square kilometer, and 38 feral pigs per square kilometer (Knutson and Vogt 2002). Both are<br />

responsible for considerable damage to the <strong>Refuge</strong>’s vegetative structure through foraging,<br />

rooting, and wallowing. Feral pigs are omnivorous and can feed on native sea turtles, sea birds,<br />

and reptiles, putting these vulnerable species at risk. Complete eradication of pigs and deer on<br />

<strong>Guam</strong> is not culturally acceptable to a large number of people because the community values these<br />

species for hunting and food.<br />

Chapter 5. <strong>Refuge</strong> Biology and Habitat 5-29

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