Andy Holdsworth

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  www.wnrmag.com/stories/2005/aug05/eworm.htm - [Cached Version]
  Published on: 8/1/2005    Last Visited: 10/2/2008  

  © Andy Holdsworth, University of MinnesotaResearch is underway to see if the forest floor will recover once earthworms are removed.
  
  © Andy Holdsworth, University of Minnesota
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  People should only introduce worms in plantings where worms are already present, or in compost piles where the worms will not survive outside the pile, said Andy Holdsworth, a scientist in disturbance ecology at the University of Minnesota.
  
  "City gardeners need not be too concerned, but people who garden in newly developed areas or at their cabins in the Northwoods should do their best to avoid accidentally introducing earthworms with plants or soil," he said.
  ...
  Martin was aware that Holdsworth has begun examining a few sites in western Wisconsin.

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  Applied Ecological Services(AES), Inc. Grant Program - [Cached Version]
  Published on: 5/20/2006    Last Visited: 10/2/2008  

  Andrew Holdsworth, University of Minnesota.

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  Audubon: Exotics - [Cached Version]
  Published on: 11/16/2004    Last Visited: 11/16/2004  

  On the summer day I visit the site, Hale and Andy Holdsworth, a fellow biologist at the University of Minnesota, are on their knees, their noses a few inches above the black loam, eyeing the incursion up close.
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  Hale pours a yellowish solution of water mixed with irritating mustard powder over a patch of the forest floor about 200 yards from the lake, and Holdsworth picks up the first emerging creepy crawlies,slugs and beetles,with a pair of forceps.
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  Night crawlers and the smaller species known as Lumbricus rubellus, Holdsworth explains, do exactly what gardeners like: move organic material from the surface into the soil.Here they clean the forest floor so effectively that fallen leaves vanish in a few weeks.He points out other worm sign, too, such as a smoothed boulder protruding from the forest floor.It's topped with a perfectly round cap of green moss, like a skullcap, that's separated from the soil by four vertical inches of bare rock."I call this 'forest gingivitis,' " he says.
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  But Hale and Holdsworth envision a cadre of volunteer observers who can alert forest managers to new invasions.
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  And one piece of good news gives them hope: Holdsworth has been surveying national forest lands in Minnesota and Wisconsin, and he has found that many areas with little fishing remain worm-free.
  
  He has also found a change in public attitudes."In the last few years we've noticed a lot more people who are aware of the issue," Holdsworth says."The word is definitely getting out."That's certainly welcome news.

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  Audubon: Exotics - [Cached Version]
  Published on: 3/6/2004    Last Visited: 3/6/2004  

  On the summer day I visit the site, Hale and Andy Holdsworth, a fellow biologist at the University of Minnesota, are on their knees, their noses a few inches above the black loam, eyeing the incursion up close.
  ...
  Hale pours a yellowish solution of water mixed with irritating mustard powder over a patch of the forest floor about 200 yards from the lake, and Holdsworth picks up the first emerging creepy crawlies-slugs and beetles-with a pair of forceps.
  ...
  Night crawlers and the smaller species known as Lumbricus rubellus, Holdsworth explains, do exactly what gardeners like: move organic material from the surface into the soil.Here they clean the forest floor so effectively that fallen leaves vanish in a few weeks.He points out other worm sign, too, such as a smoothed boulder protruding from the forest floor.It's topped with a perfectly round cap of green moss, like a skullcap, that's separated from the soil by four vertical inches of bare rock."I call this 'forest gingivitis,' " he says.
  ...
  But Hale and Holdsworth envision a cadre of volunteer observers who can alert forest managers to new invasions.
  ...
  And one piece of good news gives them hope: Holdsworth has been surveying national forest lands in Minnesota and Wisconsin, and he has found that many areas with little fishing remain worm-free.
  
  He has also found a change in public attitudes."In the last few years we've noticed a lot more people who are aware of the issue," Holdsworth says."The word is definitely getting out."That's certainly welcome news.

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  Duluth News Tribune | 02/27/2004 | Earthworm expert... - [Cached Version]
  Published on: 2/27/2004    Last Visited: 2/27/2004  

  Andy Holdsworth, University of Minnesota researcher, will present "When Worms Turn: The Ecological Consequences of Exotic Earthworms in Northern Hardwood Forests."

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  Duluth News Tribune | 07/31/2005 | Outdoors Notes - [Cached Version]
  Published on: 7/31/2005    Last Visited: 7/31/2005  

  - Aug. 13: Urho Creek led by Andy Holdsworth, a doctoral student in conservation biology at the University of Minnesota.

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  Duluth News Tribune | 08/07/2005 | Outdoors Notes - [Cached Version]
  Published on: 8/7/2005    Last Visited: 8/8/2005  

  - Saturday: Urho Creek led by Andy Holdsworth, a doctoral student in conservation biology at the University of Minnesota.

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  Forest Service in the News : September 2003 - [Cached Version]
  Published on: 9/1/2003    Last Visited: 6/10/2006  

  Worm Watch - Andy Holdsworth, conservation biologist, Grist magazineALASKA REGION (Region 10): Alaska

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  Grist | Dear Me | Holdsworth | 02 Sep 2003 - [Cached Version]
  Published on: 9/3/2003    Last Visited: 9/3/2003  

  Andy Holdsworth, conservation biologist
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  Andy HoldsworthAndy Holdsworth is a PhD candidate in conservation biology at the University of Minnesota.He studies the ecological effects and conservation implications of nonnative earthworms in Minnesota and Wisconsin.
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  Andy Holdsworth

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  IATP | Community Forestry Resource Center - [Cached Version]
  Published on: 4/2/2004    Last Visited: 2/2/2005  

  On the summer day I visit the site, Hale and Andy Holdsworth, a fellow biologist at the University of Minnesota, are on their knees, their noses a few inches above the black loam, eyeing the incursion up close.
  ...
  Hale pours a yellowish solution of water mixed with irritating mustard powder over a patch of the forest floor about 200 yards from the lake, and Holdsworth picks up the first emerging creepy crawlies-slugs and beetles-with a pair of forceps.
  ...
  Night crawlers and the smaller species known as Lumbricus rubellus, Holdsworth explains, do exactly what gardeners like: move organic material from the surface into the soil.Here they clean the forest floor so effectively that fallen leaves vanish in a few weeks.He points out other worm sign, too, such as a smoothed boulder protruding from the forest floor.It's topped with a perfectly round cap of green moss, like a skullcap, that's separated from the soil by four vertical inches of bare rock."I call this 'forest gingivitis,' " he says.
  ...
  But Hale and Holdsworth envision a cadre of volunteer observers who can alert forest managers to new invasions.
  ...
  And one piece of good news gives them hope: Holdsworth has been surveying national forest lands in Minnesota and Wisconsin, and he has found that many areas with little fishing remain worm-free.
  
  He has also found a change in public attitudes."In the last few years we've noticed a lot more people who are aware of the issue," Holdsworth says."The word is definitely getting out."That's certainly welcome news.

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