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Pines threaten Haleakalā

Posted on November 16, 2016 by Lissa Strohecker

Forest Starr removes a pine sapling as part of the effort to protect Haleakala Crater. Only few species of pines are invading Haleakalā: Pinus radiata (Monterey pine), Pinus patula (Mexican weeping pine), and Pinus pinaster (maritime pine). Photo courtesy of Forest and Kim Starr

Forest Starr removes a pine sapling as part of the effort to protect Haleakala Crater. Only few species of pines are invading Haleakalā: Pinus radiata (Monterey pine), Pinus patula (Mexican weeping pine), and Pinus pinaster (maritime pine). Photo courtesy of Forest and Kim Starr

Haleakalā Crater is a rainbow of cinder, unlike anyplace else on earth. The result of millions of years of eruption of a stop and start volcano. At its greatest height, Haleakalā reached between 13,500 to 14,500 feet into the sky. When eruptions paused, the wind and rain went to work sculpting the crater, then it erupted again. Today, this history is laid bare for all to see. The plants and animals that live in this environment equal the geology, both in rarity and beauty. Haleakalā National Park is home to more threatened and endangered species than any other national park in the United States.

“...the tie-ribs of earth lay bare before us. It was a workshop of nature still cluttered with the raw beginnings of world-making.” wrote Jack London about Haleakalā Crater. Photo by Forest and Kim Starr.

“…the tie-ribs of earth lay bare before us. It was a workshop of nature still cluttered with the raw beginnings of world-making.” wrote Jack London about Haleakalā Crater. Photo by Forest and Kim Starr.

It’s not only the natural history that makes Haleakalā Crater unique. It ranks as the quietest place on earth, a notable distinction in our busy bustling world. For the most part, Haleakalā Crater today would be recognizable as the same landscape, with most of the same vegetation, as it appeared to the early Polynesians that honored the crater as a the Wao Akua, realm of the gods; the same erosional depression that inspired Jack London to write “the tie-ribs of earth lay bare before us. It was a workshop of nature still cluttered with the raw beginnings of world-making.”

Few places remain so untouched today. Keeping the crater in a comparatively pristine state takes many hands. Miles of fence keep out the feral pigs and goats that once trampled the crater, but invaders still come, as seeds from invasive plants blown on the wind or hitchhiking on vehicles and clothing.

Today, the sanctuary of Haleakalā, the workshop of nature, is at risk of being lost underneath a blanket of pine trees. “Removing pines from the crater is our highest priority in terms of invasive plant control work in Haleakalā National Park,” explains Woody Mallinson, the Natural Resource Program Manager at Haleakalā National Park.

Kim Starr stands by a pine sapling in Haleakalā Crater. If these pines are not removed they will take over, leaving no room for the silversword and other plants an animals found only on Haleakalā. Photo by Forest and Kim Starr

Kim Starr stands by a pine sapling in Haleakalā Crater. If these pines are not removed they will take over, leaving no room for the silversword and other plants an animals found only on Haleakalā. Photo by Forest and Kim Starr

Between 1910 and the 1940’s, well-intentioned territorial foresters planted pines on windward and leeward sides of Haleakalā, just west of the Koʻolau Gap, in Hosmer’s grove, and Polipoli to stop erosion and provide timber. A handful of those pine species turned out to be invasive. Over the next century they became increasingly widespread. Occasionally seeds found a way into Haleakalā, growing in the cinder soil. Park crews routinely removed them. They pulled 22 pines between 1982 and 2006.

But in 2007, a natural disaster spurred an explosion in pine seed germination. The pine plantation in Polipoli caught fire and the resulting flames burned over 600-acres on the southwestern slope of Haleakalā. The fire fighters who fought the blaze hadn’t seen anything like it in Hawaiʻi. Wildfires here typically spark in grasslands, but a summer drought left the forest of Polipoli primed for a forest fire. Pines, rich in natural oils and pitch, burn hot and flames blazed high above Kula.

The heat of the fire triggered the release of millions of pine seeds from inside their waxy cones. This natural response helps pines recolonize after a forest fire. It’s highly effective, and it has helped the pines colonize Haleakalā as well. Pines can be relatively slow growing, but they’ve managed to take over 2,200 acres of cliff walls and have the potential to invade about 18,000 acres of the Park.  Since 2007, crews removed over 81,000 pines from the crater floor and walls, they estimate another 3,500 pines are creeping up the steep cliffs of the crater.

Pine saplings cascade down the rim of Haleakalā Crater. A 2007 forest fire in the Polipoli pne plantation spurred the germination of hundreds of thousands of pine seeds, carried on the wind into the crater. Photo by Forest and Kim Starr.

Pine saplings cascade down the rim of Haleakalā Crater. A 2007 forest fire in the Polipoli pine plantation spurred the germination of hundreds of thousands of pine seeds, carried on the wind into the crater. “If left unaddressed, the entire crater could be converted into a pine forest” Explains Woody Mallinson.  Photo by Forest and Kim Starr.

“If left unaddressed, the entire crater could be converted into a pine forest. The result would be a landscape unrecognizable as compared to what we know today, with little to no habitat for endemic and endangered species. It would be a catastrophic ecosystem displacement,” explains Mallinson.

If the crater were to become a pine forest, the likelihood of future fires would increase. The combination of the dry arid climate, frequent winds, and fuel-rich pines could combine with disastrous results, especially for native Hawaiian species not adapted to fire.

Haleakalā National Park, in partnership with The Nature Conservancy, East Maui Watershed Partnership, Hawaiʻi Department of Land and Natural Resources and other conservation agencies are working to remove the pines, both inside and out of the park boundaries. Their efforts are helping to reduce the density of pines and protect Haleakalā.

You can participate. Join volunteer groups working with the Friends of Haleakalā on trips to remove pine trees from around Haleakalā Crater. Check their website for more information: www.fhnp.org

Lissa Fox Strohecker is the public relations and education specialist for the Maui Invasive Species Committee. She holds a biological sciences degree from Montana State University. Kia’i Moku, “Guarding the Island,” is prepared by the Maui Invasive Species Committee to provide information on protecting the island from invasive plants and animals that can threaten the island’s environment, economy and quality of life.

Originally published in the Maui News on August 14th, 2016 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

 

Filed Under: Invasive Plants Tagged With: 2016, invasive pines, pine removal in Haleakala, pine trees on maui, pines in Haleakala

Deck your hall with boughs of locally harvested plants

Posted on February 10, 2016 by Lissa Strohecker

Join the Friends of Haleakalā for their annual pine pull - a chance to remove invasives and take home some locally harvested holiday greenery. Photo by Matt Wordeman.

Join the Friends of Haleakalā for their annual pine pull – a chance to remove invasives and take home some locally harvested holiday greenery. Photo by Matt Wordeman.

Friends' 2014 pine pull - down the hill - Matt wordeman

Collecting pine trees Maui style. Though the snow may be lacking it still warms the heart. Photo by Matt Wordeman

Deck the halls with boughs of….holly? ‘Tis the season to decorate your hale with holiday wreaths, sprigs, and boughs.

Fresh greenery, seeds, and flowers are as much or more a part of this season as pretty paper and bows. Using plants to adorn homes during the winter solstice is a tradition that goes back to ancient times, as many cultures celebrated the return of the sun.  Egyptians filled their homes with palms to celebrate the recovery of Ra, their sun god, from the illness that left the days shorter. Early Romans brought fir trees inside during their solstice feast of Saturnalia, honoring Saturn, the god of agriculture. Vikings honored the sun god Balder with pine boughs, and the Druids decorated their temples with evergreen boughs symbolizing everlasting life. Evergreens hold particular significance as they remain fresh throughout the year, no matter the climate.

Traditionally, all of these decorative plants were collected locally. It’s only in today’s era of globalization that our traditions are tied to imported plants and food. This year, consider revising your definition of traditional and decorate with locally grown plants. In doing so, you share your love of Hawaiʻi and help protect our island way of life for future generations.

Pine trees and garlands:
Few decorations are as iconic as the Christmas tree. But almost every year, agricultural inspectors hold and treat or even reject shipments of pines from the mainland because they contain hitchhiking pest species that threaten Hawaiʻi. Each tree is shaken to check for unwanted pests: slugs and yellow jackets are not uncommon, and in 2010 salamanders and Pacific tree frogs were found. The Vespula wasp made its way to our islands via shipments of Christmas trees in the 1970s.

Alternatives:  If you consider evergreens a necessary ingredient for the holidays, you’ll be pleased to know there are locally grown pines available, for sale or for harvest. Each year groups like Friends of Haleakala National Park remove invasive pines from the slopes of Haleakala. Volunteer with them and you and your family can get a free tree. If you missed the December 12th event this year, mark your calendar to check the Friends’ website next year: www.fhnp.org

Wreaths:
A beautiful wreath of fresh foliage welcoming people to your home is a great way to set the tone for the holiday. Whether you create your own or purchase one ready-made, make sure the fresh decorations on your wreath are locally sourced. If you are using the reproductive parts of a plant (seeds or berries) it’s especially important to ensure that you are not helping spread an invasive pest or disease. For example, pampas grass has beautiful feathery plumes, but it’s a pest that the Maui Invasive Species Committee works to remove from Maui. Each plume is filled with thousands of wind-blown seeds that can compromise Maui’s watershed – not the message you want to send from your front door.

Alternatives: Locally grown pines, proteas, succulents, and herbs can be used to create beautiful and sturdy wreaths. If you need a little guidance, several organizations and local businesses have wreath making classes during December; Aliʻi Kula Lavender Farm still has classes so you can create a wreath in time for Christmas: www.aliikulalavender.com.  Locally made wreaths are often available at farmers’ markets.

Houseplants and other vegetation:
Poinsettias are a holiday stable, and a houseplant or orchid is a great gift for the person who has everything.  Purchasing plants from local growers lessens the likelihood that you’ll be giving an unintended gift.

Alternatives: Every year the Agricultural and Natural Resources Class at the University of Hawaiʻi Maui College grows poinsettias to sell as a fundraiser. Check the paper or the Facebook page for exact dates. Consider giving a native plant grown on Maui; ask your garden shop where the plants are grown.

Ancient and modern Hawaiians celebrate Makahiki at this time of year, a time of peace, feasting and festival, celebrating the prosperity of the land. It’s a time of family and gathering together, a time of creating and passing along traditions. This year, celebrate the prosperity of the islands and protect it for future generations. Hauʻoli makahiki hou from all of us at the Maui Invasive Species Committee.

Kia’i Moku, “Guarding the Island,” is prepared by the Maui Invasive Species Committee to provide information on protecting the island from invasive plants and animals that can threaten the island’s environment, economy and quality of life.

Written by Lissa Strohecker. Originally published in the Maui News on December 13th, 2015 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

Filed Under: Get Involved!, In the field, Invasive Plants, Kia'i Moku Column Tagged With: 2015, friends of haleakala, pine tree pull, pine trees on maui

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