Honu'apo Park Resource Management Plan

Honuÿapo Park Final Resources Management Plan
(Urochola mutica) in drier zones, and seashore paspalum (Paspalum vaginatum) in
the brackish intertidal zone. Makaloa (Cyperus laevigatus) and milo (Thespesia
populnea) are among the few native species found in the intertidal marsh zone of
the estuary.
2.3.5 Fauna
Honuÿapo Park has the potential to provide habitat for many species of birds, native
and alien. Coastal and estuarine zones are habitat for a variety of indigenous
migratory shorebirds, including the ruddy turnstone (Arenaria interpres), Pacific
golden-plover (Pluvialis fulva), wandering tattler (Heteroscelus incanus), and
possibly bristle-thighed curlew (Numenius tahitiensis) and sanderling (Calidris alba).
The estuary could also support native water birds, including the indigenous blackcrowned
night-heron (Nycticorax nycticorax hoactli) and the endangered Hawaiian
coot (Fulica alai). The seabird black noddy or noio (Anous minutus melanogenys) is
frequently seen flying in and out of refuges in the rocky coastal cliffs of the area,
and the white-tailed tropic bird (Phaethon lepturus dorotheae) has been observed at
Honuÿapo (NPS 2006). Introduced birds that are also common at Honuÿapo include
the common barn owl (Tyto alba), northern cardinal (Cardinalis cardinalis),
Japanese white-eye (Zosterops japonicus), spotted dove (Streptopelia chinensis) and
zebra dove (Geopelia striata).
Other rare, endangered or threatened species with variable levels of occurrence in
the area include the endangered Hawaiian hoary bat (Lasiurus cinereus semotus),
endangered Hawaiian duck (Anas wyvilliana), the endangered Hawaiian hawk
(Buteo solitarius), and Hawaiian black-necked stilt or äe‘o (Himantopus mexicanus
knudensi).
The orange-black Hawaiian damselfly (Megalagrion xanthomelas), a candidate
insect species for listing under the Endangered Species Act, has been seen at
Honuÿapo Estuary.
Several species of introduced animals including feral dogs (Canis familiaris), cats
(Felis sylvestris catus), pigs (Sus scrofa), goats (Capra aegagrus hircus), rats (Rattus
rattus), mice (Mus musculus) and mongooses (Herpestes auropunctatus) are present
in the park area and are detrimental to native plant and animal species. The
presence of cats, rats, and mongooses on the park property is believed to be the
primary cause of low numbers of native bird sightings at Honuÿapo Estuary.
2.3.6 Estuarine, Tide pool and Marine Habitats
The rugged shoreline in the vicinity of Honuÿapo offers an array of habitats, ranging
from coastal cliffs, to tide pools and spring-fed brackish wetlands, which produce a
great diversity of biological communities. A limited survey by the National Park
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