Guided Walks at Kealia Pond NWR

It is migratory bird season at the pond and that means it is the best time for seeing a diversity of birds at the refuge. The walks start at the visitors’ center that is next to Mokulele Highway every Tuesday  at 9 AM until March of 2019. Bad weather (is there such a thing on Maui??) and pond water levels may cause cancellation. You can call (808)875-1582 to confirm.

Viewing birds out by the ponds. Note the shoes and hats!

These walks are led by experienced refuge staff. You’ll learn how to identify the refuges’ resident and migratory birds and about their life history.  It can get hot and sunny out there so remember your water, sun protection. Close toed shoes are recommended as are binoculars or a camera with a telephoto lens.

Protip: If it has rained in the area recently, expect the trails around the pond to be super muddy. There is a shoe scraper at the shelter by at the end of the paved road, but you will not get all the mud off. Bring a bucket or bag for your shoes and clean shoes to change into after the walk.

One Health Day is November 3

One Health Day

It might seem odd to write about a health event on a natural history site, but with over 50 percent of human diseases are “zoonotic” they can spread between animals and people. Malaria, dengue, and many other mosquito-born diseases can be spread or controlled depending on human environmental responses. Recognizing that humans are part of nature and the natural history of our islands is one point this site hopes to highlight.

On Maui (and greater Hawai’i) you may have heard about the concern about the spread of “Rat Lungworm Disease” – a really unpleasant, brain-eating disease that is hosted by several mollusk species and should end up in a rat as a final host. In the cases where a human gets exposed, severe illness and even death are possible outcomes.  We hope to target both rats and mollusk host species in the upcoming City Nature Challenge, hopefully understanding the natural history of the hosts on our islands while illuminating where the disease might spread more easily.  

If understanding the relationship between animals, humans and environment is up your alley, then the One Health Initiative is something to learn more about. Check out the One Health Day page  for more details about the event and the initiative in general. 

iNaturalist Project Feature: Pollinators in Paradise

If you are using the iNaturalist app, one easy way to do community science (citizen science) is to contribute to ongoing research efforts.  The Pollinators in Paradise iNat project is one that you can contribute to understanding Hawaii’s pollinator community. It is focused focused on bees, wasps and sawflies and hopes to spread awareness of Hawaii’s endangered pollinator species. Follow this link to join the project.

Seven species of Hawaiian yellow-faced bees are currently listed as endangered under the US Endangered Species Act. The listing below provides links to  the USFWS ECOS system that provides summary data on these bees. Five of the seven are reported from Maui county and two are know only from Maui County. The last listing for Hylaeus mana provides a good overview/description of the group that is lacking for the other species. Here is a nice article from the Maui News that gives a nice big-picture overview.

Anthricinan yellow-faced bee (Hylaeus anthracinus)(Maui)

Assimulans yellow-faced bee (Hylaeus assimulans) (only Maui)

Easy yellow-faced bee (Hylaeus facilis)(Maui)

Hilaris yellow-faced bee (Hylaeus hilaris) (only Maui)

Hawaiian yellow-faced bee (Hylaeus kuakea)(only Honolulu)

Hawaiian yellow-faced bee (Hylaeus longiceps)(Maui)

Hawaiian yellow-faced bee (Hylaeus mana)(only Honolulu)

Numbers on Turtles? What’s up with that??

Kihei Beach with Sea Turtle

I’ve worked with sea turtle conservation for a number of years and I knew that flipper tags (kinda like sea turtle ear-rings but for flippers) were a standard way to mark turtles for later identification. These tags help scientists track where turtles stay and migrate to, how old they grow, how fast they grow and more.  I was surprised during an early morning walk along the beach in Kihei earlier this year when I saw a painted number on the shell of a female green sea turtle that was making her back back to the sea. This was not something I’d come across before.

A snippet from fall 2017 the Hawaiian Hawksbill Turtle newsletter had  a clue:

Some of the male and female Hawaiian green sea turtles that nested and basked all the way up in the Northwestern Hawaiian Islands (Papahanaumokuakea Marine National Monument) this past season can be identified by the temporary white letters/numbers the NOAA researchers painted on their carapaces.  Their flipper tags are often more difficult to read, so these numbers truly help us understand their migratory patterns.”

I just sent in the observation to and will update this post if I get any information back. You can also call in sightings to the statewide marine wildlife stranding number here:  +1(888)256-9840

Green Sea Turtle with Number

Hey, did you “just” see a turtle? Even without numbers, turtle sightings can be helpful. If you’d like to add your observations to a global community science project, check out  BUT do remember… Sea turtles are threatened/endangered species.  Any effort to take a photograph should be respectful and not alter their natural behavior.

Here are some recent observations:

Ghost Crabs on Hawaiian Beaches

You may not have seen these crabs in person, but if you walk the beach in the morning, you’ve certainly seen their handiwork. Ghost crabs live in the intertidal zone and after the high tide recedes, they must clear their burrow of the sand the waves washed in. While there are a number of species worldwide, in Hawaii the question is which of the two species is it?

pallid and horned ghost crab burrows on maui

The pallid ghost crab,” Ocypode pallidula,  is active day and night and produces a fan shaped formation of sand as it excavates its burrow.  The horned ghost crab,  Ocypode ceratophthalma, is active at night and forms a small, cone-shaped heap as it excavates its burrow.  The latter grows to a larger size and at least for adults, larger burrows, with openings larger than 3″ across, are likely to belong to a horned ghost crab.

Help DAR keep Invasive Species in Check – Aquatic Invasive Species Project on iNaturalist

One of the outcomes of our participation in the 2018 City Nature Challenge is the realization that a number of group on Maui and the Hawaiian Islands at large are using the platform to get input from citizen scientists about rare, endangered, and invasive species.  In this post, I wanted to highlight the DAR Aquatic Invasive Species Team’s iNaturalist project; named, of course, State of Hawaii: Aquatic Invasive Species.

Invasive species, as you might guess from the name, are species that are both not native and are causing a problem.  The team has put together a list of thirty-nine aquatic species that are considered invasive in the State of Hawaii. The list below are species of particular interest. A listing of all thirty-nine species, with pictures is available on their iNaturalist guide.  Not all of these species are known from all of the Hawaiian islands. Early detection can make a difference between getting rid of these problem species before they spread and having to deal with the ecological (and often economic) havoc they can cause.

If you’d like to find out more about the DAR Aquatic Invasive Species program, there website is here:

Invasive Algae:

  • Smothering Seaweed (Kappaphycus/ Euchema sp.)
  • Gorilla Ogo (Gracilaria salicornia)
  • Leather Mudweed (Avrainvillea amadelpha)
  • Hook Weed (Hypnea musciformis)
  • Prickly Seaweed (Acanthophora spicifera)

Invasive Marine Animals:

  • Orange Keyhole Sponge (Mycale armata)
  • Tilapia (Tilapia spp.)
  • Upside-down Jellyfish (Cassiopea spp.)
  • Peacock Grouper (Cephalopholis argus)

Invasive Freshwater Animals:

  • Banded Jewel Cichlid (Hemichromis elongatus)
  • Smallmouth Bass (Micropterus dolomieu)
  • Green Swordtail (Xiphophorus helleri)
  • Convict Cichlid (Archocentrus nigorfasciatus)
  • Guppies (Poecilia reticulata)
  • Suckermouth Catfish (Hypostomus c.f. watwata)
  • Asiatic Clam (Corbicula fluminea)
  • Apple Snail (Pomacea canaliculate, P. bridgesi, P. paludosa, Pila conica)
  • Tahitian Prawn (Macrobranchium lar)

Invasive Freshwater Plant:

  • Giant Salvinia/ Water Fern (Salvinia molesta)

Let’s stop the Little Fire Ant

Introduced species sometimes integrate into the fabric of their new home in a way that doesn’t really seem to cause problems for the original residents. Other introduced species – invasive species – do and the Little Fire Ant (aka the Electric Ant) is one of the latter. They are called fire ants because they sting – people, pets, wildlife – they’ve even been reported to have affected hatchling sea turtles! Add to that the fact that their stings are industrial grade – hence the name fire ant – and they’ve even caused pets and livestock to go blind after repeated stings to the eye.

Targeted efforts to eradicate the LFA are ongoing and you can help monitor for the ants. Report them and you’ll get help getting them out of your yard, garden or neighborhood. Check out for a pile of resources including a short ~ 30-minute documentary, details about how to monitor for the ant with peanut butter and a chopstick, and if you are a teacher, how to work spreading the word about the LFA with lesson plans all set up for you.

Here is a three-minute lesson on how to test for the Little Fire Ant:

Help MISC Control Invasive Species During the 2018 City Nature Challenge

The Maui Invasive Species Committee is joining up with the CNC:Maui this year and we’ll be looking to target species of concern during the event to help MISC’s effort in controlling invasive species on Maui We’ll feature these species in follow up posts, but keep on the look out – and report – any sightings of MISC’s most wanted: the Little Fire Ant, Rapid Ohia Death and the Coqui Frog. You can report sightings of these most wanted and other new and unusuals with the new Hawaii-wide reporting website (and mobile app) logo

You can learn more about other MISC targets species on their website >> here.

Our First Meetup! Kealia Pond NWR

We had a great inaugural meetup session at Kealia Pond this past Saturday. It was great to finally connect – in person – with seasoned and hopeful natural historians. We spent a few minutes learning how to use iNaturalist at the newly opened Kealia Pond visitors center. Afterwards, Americorps volunteer Brett led us on a hour-long walk around the pond. We learned about some of the efforts at the NWR to restore the surrounding environment and the challenges faced in keeping the area free of invasives like feral pigs and friendly for the native and visiting waterbirds that rely on Kealia’s wetland environments.

City Nature Challenge 2018

We are excited to be hosting the 2018 City Nature Challenge for the very first time in Hawaii. Our “city” is the entire island of Maui and we are encouraging folks to learn how to use the iNaturalist platform (mobile app and website) to record natural history observations on the island. We’ll use iNaturalist to record as many observations of biodiversity here on the island during the CNC competition – April 27,28,29, and 30 this year. For details about the events, visit our meetup page at