Navigation Links
Native plant restoration not enough to maintain tropical dry forests in Hawaii
Date:7/2/2012

Hilo, Hawaii.Protecting Hawaiian dry forests from invasive species and the risk of wildfire is an on-going challenge for land managers and scientists conducting research on the Island of Hawaii. It is commonly thought that removing the invasive species and planting native species will restore the land to its original state. However, in a recent paper published in Biological Invasions, Dr. Susan Cordell, USDA Forest Service Pacific Southwest Research Station, Institute of Pacific Islands Forestry; Dr. Erin Questad, Cal-Poly Pomona; and Dr. Jarrod Thaxton, University of Puerto Rico found that it is not quite that simple.

The research team has been working at the Kaupulehu dry forest reserve on the Island of Hawaii for the past decade. The largest current threat to this highly unique and endangered ecosystem is the spread of non-native fire-promoting grasses, in particular, fountain grass or Pennisetum setaceum.

To test characteristics of ecosystem resilience in this dry tropical forest, the researchers allowed natural rates of re-invasion of non-native species into an existing restoration project and looked at how effective restoration projects were at enhancing invasion resistance. They paid particular attention to the relationship between invasibility and native plant diversity.

Key findings from the research include:

  • Higher invasion rates occurred in plots that supported the most native species, suggesting that similar mechanisms may regulate the distribution of both native and invasive species.

  • Fountain grass was associated with native plant mortality and declines in native diversity, particularly in areas with harsh environmental conditions (i.e. steep slopes, little soil, exposed terrain).

  • Native woody plant restoration alone was not an effective tool for weed control in this community, and continuing invasion may result in declines in native diversity in the long term.

"We have spent a considerable amount of time understanding the role of restoration on non-native plant invasion," says Dr. Cordell. "In the short term, restoration of native species serves to improve invasion resistance but results from this study also indicate that long-term sustainability of restoration projects will require continued non-native species management."

These findings suggest the need for consideration of long-term sustainability measures in restoration plans for tropical dry forest ecosystems in Hawaii.


'/>"/>

Contact: Sherri Eng
sleng@fs.fed.us
510-559-6327
USDA Forest Service - Pacific Southwest Research Station
Source:Eurekalert

Related biology news :

1. Scripps Research Institute Scientists Develop Alternative to Gene Therapy
2. Study provides first evidence of coevolution between invasive, native species
3. Pasta made from green banana flour a tasty alternative for gluten-free diets
4. NIST launches new website to educate industry about alternatives to mercury thermometers
5. Divide the Antarctic to protect native species, propose experts
6. Hot sauce ingredient reduces beer belly fat as a weight-loss surgery alternative
7. Bacteria discovery could lead to antibiotics alternatives
8. Yeast cell reaction to Zoloft suggests alternative cause, drug target for depression
9. AZM alternatives for apple growers against codling moth
10. University of Minnesota invention helps advance reliability of alternative energy
11. LAMIS -- a green chemistry alternative for laser spectroscopy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/7/2016)... , Dec. 7, 2016   Avanade is ... Formula One teams in history, exploit biometric data in ... performance and maintain the competitive edge against their rivals ... Avanade has worked with Williams during ... of biometric data (heart rate, breathing rate, temperature and ...
(Date:12/5/2016)... , Dec. 5, 2016  The Office ... today published "Can CT Scans Enhance or Replace ... the potential of supporting or replacing forensic autopsies ... CT scan. In response to recommendations ... is exploring using CT scans as a potential ...
(Date:11/29/2016)... BioDirection, a privately held medical device company developing novel ... concussion and other traumatic brain injury (TBI), announced today ... the U.S. Food and Drug Administration (FDA) to review ... meeting company representatives reviewed plans for clinical development of ... a planned pilot trial. "We are ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... ... 2016 , ... This CAST literature review and report looks at problems caused ... the economic effects in countries that are major global commodity exporters and importers, which ... risk of low level presence (LLP) puts large volumes of trade worth billions of ...
(Date:12/8/2016)... N.J. , Dec. 8, 2016 Soligenix, ... biopharmaceutical company focused on developing and commercializing products to ... need, announced today that it will be hosting an ... am ET on the origins of innate defense regulators ... a review of oral mucositis and the recently announced ...
(Date:12/8/2016)... 2016 Savannah River Remediation LLC group ... NewTechBio,s NT-MAX Lake & Pond Sludge and ... in conjunction with Hexa Armor/ Rhombo cover manufactured ... Pollutant Discharge Elimination System requirements. The ... history of elevated pH levels, above 8.5, especially ...
(Date:12/8/2016)... 2016  Partnering to fuel Philadelphia,s ... of Southeastern Pennsylvania (" Ben ... of Independence Blue Cross; and Safeguard Scientifics ("Safeguard") (NYSE: ... a $6 million funding initiative over a four year ... Responding to a burgeoning economic vitality in digital health, ...
Breaking Biology Technology: