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HOME > Field Accounts |
ISLET FIELD ACCOUNTS
Follow the interns and volunteers through their work on the offshore islets. Click on the photos to link to a photo gallery for each visit.
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> 19 Feb 2007: Moku'au'ia (Goat Island), O'ahu > 29 Feb 2007: Mokulua, O'ahu > 28 Mar 2007: Kaohikaipu (Black Rock), O'ahu > 2-3 April 2007: Po'opo'o, Lana'i > 2-3 April 2007: Pu'u pehe (Sweetheart Rock), Lana'i > 5 Apr and 7 Apr 2007: Moku'au'ia (Goat Island), O'ahu > 5-7 Apr 2007: Mokoli'i (Chinaman's Hat), O'ahu > 29 Apr 2007: Kapapa (Mokukapapa), O'ahu > 3-4 May 2007: Lehua, Kaua'i and Ni'ihau > 9 May 2007: Moku'au'ia (Goat Island), O'ahu > 12 May 2007: Mokoli'i (Chinaman's Hat), O'ahu > 29-31 May 2007: Molokini, Maui > 29-31 May 2007: Kaemi, Maui > 29-31 May 2007: Hulu, Maui > 1 Jun 2007: Moku'au'ia (Goat Island), O'ahu > 8 Jun 2007: Moku'au'ia (Goat Island), O'ahu > 15 Jun 2007: Moku'au'ia (Goat Island), O'ahu > 22 Jun 2007: Moku'au'ia (Goat Island), O'ahu > 29 Jun 2007: Moku'au'ia (Goat Island), O'ahu > 6 Jul 2007: Moku'au'ia (Goat Island), O'ahu > 18 Jul 2007: Moku'au'ia (Goat Island), O'ahu > 24 Jul 2007: Moku'au'ia (Goat Island), O'ahu > 31 Jul 2007: Moku'au'ia (Goat Island), O'ahu > 7 Aug and 30 Aug 2007: Kapapa (Mokukapapa), O'ahu > 7 Aug and 30 Aug 2007: Kaohikaipu (Black Rock), O'ahu > 8 Aug 2007: Moku'au'ia (Goat Island), O'ahu > 17 Aug 2007: Moku'au'ia (Goat Island), O'ahu > 17 Aug 2007: Mokoli'i (Chinaman's Hat), O'ahu > 24 Aug 2007: Moku'au'ia (Goat Island), O'ahu > 8 Sep 2007: Mokauea, O'ahu > 10 Sep 2007: Moku'ae'ae, Kaua'i and Ni'ihau > 18-20 Sep 2007: Mokapu, Moloka'i > 18-20 Sep 2007: 'Okala, Moloka'i > 21 Sep 2007: Mokoli'i (Chinaman's Hat), O'ahu > 22 Sep 2007: Moku'au'ia (Goat Island), O'ahu > 24 Sep 2007: Kaohikaipu (Black Rock), O'ahu > 24 Sep 2007: Manana (Rabbit Island), O'ahu > 14-16 Oct 2007: Mokoli'i (Chinaman's Hat), O'ahu > 17 Oct 2007: Popo'ia (Flat Island), O'ahu > 20-21 Oct 2007: Kapapa (Mokukapapa), O'ahu > 25 Oct 2007: Moke'ehia, Maui > 26 Oct 2007: Mokupipi, Maui > 27 Oct 2007: Pu'uku (Pu'uki'i), Maui > 1 Nov 2007: Po'opo'o, Lana'i > 1 Nov 2007: Moku mana, Maui > 2 Nov 2007: Pu'u pehe (Sweetheart Rock), Lana'i > 2 Nov 2007: Ki'ei, Lana'i > 10 Nov 2007: Mokauea, O'ahu > 1-2 Dec 2007: Kaohikaipu (Black Rock), O'ahu > 9 Feb and Feb 11 2008: Manana (Rabbit Island), O'ahu > 15 Feb 2008: Mokuho'oniki, Moloka'i > 16 Feb 2008: Moku manu, Moloka'i > 16 Feb 2008: Kanaha, Moloka'i > 19 Mar 2008: 'Alau, Maui > 20 Mar 2008: Mokuhuki, Maui > 26 Mar 2008: 'Ale'ale, Kaho'olawe > 26 Mar 2008: Pu'u koa'e, Kaho'olawe
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Moku'au'ia (Goat Island) 6 Jul 2007
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Trip Goal: To assist DOFAW biologists in an attempt to eradicate Yellow Crazy Ants from the islet using Mokoli'i Islet as a control (no bait used). Using the results of our bait preference trials, a new bait was made specifically for controlling Yellow Crazy Ants in Hawai'i. This ant species has disrupted seabird colonies and ecosystems elsewhere in Hawai'i and around the tropics, but eradication has been troublesome. A successful eradication on Moku'auia would be great step in restoring these fragile island ecosystems to their natural state. Accomplishments: Over the course of 3 months, we completed 2 ant bait applications and conducted intensive monitoring of the ant and seabird populations. We were able to significantly reduce ant numbers, but not eradicate them entirely. However, as a result of our experiment, seabirds were able to survive and successfully hatch chicks on the island. No seabird chicks survived on our control islet (Mokoli'i), where ant bait was not applied. More importantly, we have learned from the project and will readjust the bait amounts and timing and will hopefully eradicate the ants soon.
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Photo Gallery
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Intern Account: Malia: "The water, being the deepest and roughest its ever been, made the wade out to goat island difficult rather than the refreshing walk it usually is. When we reached the island, We set out to set the bait traps for the ants. Unfortunately, we counted wrong and ended up missing one of the flags. Since it was also one of the hottest days we've ever had out there, the honey began to melt as soon as we put it in the plastic bag. During the transect, I surveyed the southern coast of the island and noticed a giant decrease in the number of ants found in that area. I thought that the entire population had decreased further. At the end of the transect, the dead sea bird that we had seen a week earlier was still there, looking exactly the same as it did last week. After the transect, we did the ant survey in plot 1, which is on the northern side of the island. The ant nest that had been there almost four weeks ago was now demolished. We had trouble finding ants at first, but ended up finding about five ants where over one thousand had lived. After about one hour had passed, we set out to pick up the ant bait. I assumed that because I did not see many ants in my transect area, the number of ants in the inside of the island would have decreased. Unfortunately, there are still a multitude of ants in the middle of the island. Especially where grass, leaves, and bushes cover the ground. One good aspect that we noticed was in the dry areas where there were no ants in the first weeks, but ants started to inhabit in weeks three to five, their population had ceased to exist. The dry areas that used to be ant-less were ant-less once again. I hope that the ant bait that had helped rid the coastal areas of ants will eventually get rid of the ants in the middle of the island. This week ultimately showed slow progress in the ant eradication effort."
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