At Hakalau, the pigs are back.<\/p>\n
In 2004 and 2005, surveys of the fenced management units at Hakalau Forest National Wildlife Refuge, on the windward slopes of Mauna Kea, showed that six of the eight fenced management units were pig-free and the remaining two were nearly so. Five years later, the most recent survey of invasive species in the fenced units surrounding some 14,000 acres on the higher elevations of the 32,733-acre Hakalau forest unit of the refuge found signs of pig activity nearly everywhere surveyors looked.<\/p>\n
\u201cThe current distribution of feral pigs is widespread across the refuge,\u201d wrote the team that conducted the survey last November. It found \u201csignificantly high feral pig populations within all previously ungulate-free units.\u201d<\/p>\n
\u201cDuring this survey,\u201d the authors continued, \u201cout-planted endangered plants were seen rooted up and trampled by pigs. Other native plants, ferns in particular, beginning to re-establish in the understory, were also destroyed. Feral pigs also provide a means of dispersal of some of the weed species\u201d that were also evaluated in the survey report.<\/p>\n
What happened?<\/p>\n
Two Steps Back<\/i><\/b><\/p>\n
Taking out the pigs in the first place was nothing short of a herculean effort. Fencing the management units took years. Then came the daunting task of removing feral cattle and pigs from the fenced areas. As the animals left, the native forest began to reclaim the land damaged by 150 years of grazing. Helping it along was the backbreaking toil of thousands of volunteers and refuge staff who, over the last two decades, planted some 400,000 koa seedlings in the former pasture land. Today the young trees are flourishing and many of Hakalau\u2019s native bird species, including some that are federally listed as endangered, are moving upslope to areas that had not seen forest birds for decades.<\/p>\n
Some 43 miles of ungulate-proof fence enclose the upper 14,150 acres of the Hakalau forest refuge and divide it into eight management units. These range in size from the largest, at 5,000 acres (Shipman, which includes the most of the refuge outbuildings and greenhouse), to the smallest (Middle Honohina, at 550 acres, and Pua Akala, at 500). Middle Honohina was the first to be declared pig-free \u2013 in 1989, just four years after the refuge was established.<\/p>\n
Once the fences are up, they require constant maintenance. Tree-falls, vandalism, and corrosion can cause breaches in the fence. During the recent drought affecting broad swaths of the Big Island, feral cattle from former ranches on neighboring Department of Hawaiian Home Lands were breaking through the fences in search of lush vegetation and water.<\/p>\n
But after 2005, refuge staff and management were preoccupied with tasks other than fence patrols and maintenance, snaring, and the rest of the activities essential to keeping the management units pig-free.\u00a0<\/p>\n
Interviews with former and current staff suggest a number of factors that tended to relegate ungulate control to the back burner:<\/p>\n
\u00a0<\/p>\n
\u2022Management of the Kona unit of the Hakalau refuge. This 5,300-acre unit on the leeward slope of Mauna Loa was acquired in 1997 as a promising release site for captive-reared `alala. However, litigation over access to the site lasted until 2005, by which time the Kona unit staff had been reassigned elsewhere within the Fish and Wildlife Service and funds for fencing had been lost. Using Hilo-based staff to work in the Kona unit has taken significant personnel resources away from the Hakalau forest.<\/p>\n
\u00a0<\/p>\n
\u2022Developing a Comprehensive Conservation Plan (CCP). Starting in 2007, refuge management \u2013 under strict orders from national Fish and Wildlife Service administration \u2013 had to devote considerable effort to preparing a 15-year plan for the refuge. This three-year project, mandated by Congress, also took time and energy that otherwise would have been spent in the field. Kraus estimates that roughly three-quarters of his time in his first two years on the job was spent on this effort.<\/p>\n
\u00a0<\/p>\n
\u2022Loss of key people. Dick Wass, who had been manager of the refuge since its establishment, and Jack Jeffrey, its biologist whose remarkable bird photographs have given Hakalau\u2019s small feathered inhabitants much-deserved fame nationally and internationally, both retired in 2008.<\/p>\n
\u00a0<\/p>\n
\u2022Difficulty in retaining staff. Current refuge manager Jim Kraus says high staff turnover has made running the refuge much more difficult. Field crew are no sooner trained than they quit; a biologist hired to replace Jeffrey left within a year; a replacement (from Alaska) is scheduled to come on board this month. Kraus says that of the eight people he\u2019s hired, \u201conly two are still here.\u201d<\/p>\n
\u00a0<\/p>\n
\u2022Addressing charges of mismanagement brought by a University of Hawai`i scientist. These charges, having to do with protection of the Hawai`i `akepa (Loxops coccineus coccineus<\/i>), a critically endangered bird, resulted in a three-day workshop in 2008 involving top ornithologists from around the country who closely scrutinized the priorities and conduct of refuge staff.<\/p>\n
\u201cWhat we\u2019re doing now is triage,\u201d Kraus told Environment Hawai`i.<\/i> He acknowledged that the refuge now has a huge pig problem, but said that the field crew is getting aggressive about knocking down their numbers. On a recent tour of the refuge, Kraus pointed out a recently established pig trap \u2013 a baited corral, essentially \u2013 that staff had set up in the Shipman unit. Only moments before arriving at the trap, Kraus caught a fleeting glimpse of a trio of black pigs running up a grassy hill and into the forest cover.<\/p>\n
\u201cHakalau is a habitat island under assault,\u201d Kraus says, \u201dby mammals and plants and insects.\u201d<\/p>\n
See No Evil\u2026<\/i><\/b><\/p>\n
One management element that became a casualty of stresses on refuge resources was the periodic survey of pig activity, as indicated by scat, wallows, digging, sightings, and the like. These surveys had been conducted each year from 1997 to 2005 and were fairly rigorous, following a set of established transects that ran the length of the refuge\u2019s fenced units. They were useful in helping refuge staff direct their efforts to potential problem areas but were suspended for five years.<\/p>\n
No one seems to recall exactly why. According to one person interviewed (who did not want to be publicly identified), the refuge administration asked that teams conducting annual bird surveys at Hakalau also note the presence of pig sign wherever they happened to see it. But with surveyors\u2019 eyes scouring the treetops for birds, their reports of pig sign were sketchy and no substitute for the rigorous pig surveys that had been done in the past.<\/p>\n
Reports of staff efforts to control pigs, obtained through a federal Freedom of Information Act, suggest that field crews spent very few days in pig-control efforts in recent years. In the Upper Honohina unit, for example (Unit 5 on refuge maps), from March 2009 to March 2011, just 2.5 person-days were spent controlling pigs (eight pigs were caught in this period \u2013 seven in September 2010 alone). In the Upper Maulua unit (Unit 4), 10 snares were set from November 2005 to April 2011, an effort requiring nine person-days and yielding 13 pigs. (Again, eight of those pigs were caught in one month alone \u2013 February of this year.) In all of 2006, 2008, and 2009, there was no effort at all reported on pig snaring in this area.<\/p>\n
By 2008, says Jeffrey, pigs were seen in the Middle Honohina unit, which had been pig-free for nearly 20 years. This was despite the fact that, according to refuge records, field crews had given this unit a disproportionate share of their attention: more than 27 person days between 2006 and April 2011, resulting in the catch of 53 pigs.<\/p>\n
All totaled, from the records provided to Environment Hawai`i,<\/i> it seems that refuge staff spent about 163 person-days from 1998 to 2011 devoted to pig-reduction efforts.<\/p>\n
In addition to the efforts of refuge staff, there
\n has been the work of a contractor, paid to patrol the three makai units of the refuge. The initial contract began in 2007 and has been extended multiple times. It now runs through October 31 of this year.\u00a0<\/p>\n
When that contract expires, \u201cour intent is to set up a new contract,\u201d says Kraus. \u201cWe\u2019re at the end of the string with that one, and we want to expand on it as well.\u201d<\/p>\n
The Plan<\/i><\/b><\/p>\n
Last month, the Fish and Wildlife Service made public the 15-year Comprehensive Conservation Plan for Hakalau, the product of three years of intensive effort by refuge staff. As described in the 559-page document, a fundamental \u201ccommon feature\u201d to each task in the CCP is the construction of \u201cungulate-proof boundary fencing and sequence of management actions.\u201d<\/p>\n
\u201cEstablishing perimeter boundary fencing is a critical first step in habitat protection and restoration to deter major threats to the ecosystem and their impacts to wildlife population and species recovery,\u201d the plan states. \u201cOnce fences are established, the standard management strategy sequence would be to remove ungulates, then concentrate on invasive species control \u2026 while simultaneously restoring habitat through native plant outplantings.\u201d<\/p>\n
Readers of the plan might be forgiven for thinking that for the upper areas of Hakalau, these tasks have already been ticked off the to-do list. \u201cMost of the fenced portions of the HFU [Hakalau Forest Unit] are pig free,\u201d the plan states, relying evidently on the 2004 and 2005 surveys of pig activity within the fenced management units, which were the most recent surveys available during the years in which the plan was being prepared.<\/p>\n
No one associated with the refuge, however, is defending that characterization these days. In last month\u2019s press release announcing the availability of the plan, Kraus is quoted as saying, \u201cRefuge staff and volunteers are rightfully concerned that our efforts to re-establish our rare native plant heritage and maintain healthy populations of birds are at risk from pigs that have slowly regained entry to the refuge. I hope this plan will help us overcome the challenges we face, but we will need continued public and partner support to get the job done.\u201d<\/p>\n
In an interview with Environment Hawai`i,<\/i> Kraus said that it will take \u201cserious mobilization \u2026 to resolve the pig situation. Half the battle is making people aware.\u201d<\/p>\n
Don Palawski, to whom Kraus reports in Honolulu, stressed that no one was attempting to paper over the hard truth. \u201cWe want to let people know of the problem\u201d of the pigs\u2019 return, he said, especially within the service itself.<\/p>\n
But whether the resources needed to repair existing fences, build new ones, and remove and keep out the damaging wild pigs and cattle will be available is a huge question.<\/p>\n
According to the plan, just to meet current management tasks, the refuge staff, now numbering seven, will need to be increased to 15. To meet all the challenges identified in the CCP, staff will need to be increased to 26, including six workers \u2013 three field crew, one park ranger\/volunteer coordinator, a wildlife biologist, and a law enforcement officer \u2013 assigned to the Kona unit of the refuge.<\/p>\n
Last year (federal fiscal year 2010), the total budget for the refuge was $1.1 million, covering seven full-time employees and five so-called term employees (workers who are hired for a defined term and who do not enjoy civil service protection). \u201cIf there\u2019s no significant injection of funds on a substantial level,\u201d Kraus says, \u201cwe can\u2019t hold our own.\u201d<\/p>\n
Given the impasse over spending in Washington, however, the entire refuge system still has no budget for the current fiscal year, which will end September 30. \u201cWe\u2019re in a wait-and-see mode,\u201d says Palawski. But, he adds, \u201cwe\u2019re going to get whatever we can to do the fences and maintain them.\u201d Finding the funds, however, \u201cis a very serious problem.\u201d<\/p>\n
Keeping the refuge going, says Kraus, is \u201ckind of like being in a leaky boat that just keeps springing more leaks\u2026. I\u2019m really concerned about it as a manager, because the investment made is definitely at risk.\u201d<\/p>\n
For Further Reading<\/i><\/b><\/p>\n
Since 1997, Environment Hawai`i has reported on events and issues at the Hakalau Forest National Wildlife Refuge. Selected articles include:<\/i><\/p>\n
\u00a0<\/p>\n
\u201cAt Hakalau, Hunter Pressure Overrides Conservationists\u2019 Concerns,\u201d November 1997;<\/i><\/p>\n
\u2022 \u201cEmma\u2019s Column: From Desolation to Forest,\u201d July 2000;<\/i><\/p>\n
\u2022 \u201cJack Jeffrey: Love for Birds Inspires his Art,\u201d July 2002;<\/i><\/p>\n
\u2022 \u201cGovernment Pays $8 Million for Refuge, but Has No Legal Access,\u201d October 2003;<\/i><\/p>\n
\u2022 \u201cRanchers Press Federal Government to Pay to Move Junk, Wild Cattle Off Refuge,\u201d November 2003;<\/i><\/p>\n
\u2022 \u201cWhatever Happened to \u2026 the South Kona Refuge? Site Is Still Off-Limits to Fish and Wildlife Service,\u201d October 2004;<\/i><\/p>\n
\u2022 \u201cEight Years after Purchasing Land, Federal Government Finally Gains Access,\u201d April 2005;<\/i><\/p>\n
\u2022 \u201cOn the Trail of the Moa Nalo,\u201d February 2006;<\/i><\/p>\n
\u2022 \u201cUH Professor Takes Long-Running Feud with Feds into Court of Public Opinion,\u201d November 2009.<\/i><\/p>\n
Also of interest:<\/i><\/p>\n
\u2022 The Hakalau Forest National Wildlife Refuge Comprehensive Conservation Plan, available online at: <\/i>http:\/\/www.fws.gov\/hakalauforest\/planning.html<\/a><\/i><\/b><\/p>\n \u2022 \u201cEfficacy of Feral Pig Removals at Hakalau Forest National Wildlife Refuge, Hawai`i,\u201d by Hess et al., published in Transactions of the Western Section of the Wildlife Society, 2006. A pdf of this article is available through a link in the EH-xtra section of our home page.<\/i><\/p>\n Patricia Tummons<\/i><\/b><\/p>\n Volume 21, Number 12 — June 2011<\/i><\/p>\n","protected":false},"excerpt":{"rendered":" At Hakalau, the pigs are back. In 2004 and 2005, surveys of the fenced management units at Hakalau Forest National Wildlife Refuge, on the windward slopes of Mauna Kea, showed that six of the eight fenced management units were pig-free … Continued<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-757","post","type-post","status-publish","format-standard","hentry","category-june-2011"],"_links":{"self":[{"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=\/wp\/v2\/posts\/757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=757"}],"version-history":[{"count":0,"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=\/wp\/v2\/posts\/757\/revisions"}],"wp:attachment":[{"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/environment-hawaii.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}