Featured Research

from universities, journals, and other organizations

Disturbance Can Benefit Some Rare Forest Plants

Date:
June 1, 2001
Source:
Society For Conservation Biology
Summary:
While human disturbances can destroy ecosystems, new research shows that a little disturbance can be good for forest plants with small ranges. Called endemics, these species are often a conservation priority and this is the first study of how human disturbances affect them.

While human disturbances can destroy ecosystems, new research shows that a little disturbance can be good for forest plants with small ranges. Called endemics, these species are often a conservation priority and this is the first study of how human disturbances affect them.

Related Articles


"Forest destruction is a reality and finding that forests subject to human use can support endemic plants is good news," says Michael Kessler of the Albrecht-von-Haller- Institut fur Pflanzenwissenschaften in Gottingen, Germany, who reports this work in the June issue of Conservation Biology.

Kessler studied 650 plants that were both relatively common and easy to identify at 16 forest sites in the Bolivian Andes. The plants ranged from being widespread to endemic. At each site, Kessler compared areas with varying levels of human disturbance, including mature forest with little or no disturbance; moderately disturbed forest (where the original canopy layer was intact but there had been some logging, grazing or burning); and severely disturbed forest (such as secondary forest in areas that had been clearcut).

To his surprise, Kessler found that moderately disturbed forest had more endemic plant species than adjacent mature forest. However, severely disturbed forest had fewer endemic plants and was dominated by bracken ferns and other opportunistic pioneers that colonize cleared areas.

Why would moderate human disturbance be good for endemic plants? Endemics are more vulnerable to invasion by non- native species and apparently do not compete as well as widespread species. Kessler hypothesizes that endemics depend on natural disturbances (such as tree falls, flooding and landslides) to keep widespread species from dominating them, and so can also benefit from some human disturbance.

"My observation suggests that moderate use of tropical forests may be compatible with the conservation of endemic plant species," says Kessler. However, he cautions that not all endemic plants benefit from moderate disturbance, and that endemics do not benefit from severe disturbances such as clearcuts or extensive removal of canopy trees. Moreover, preserving undisturbed forests remains important because they often have more biodiversity than disturbed forests.


Story Source:

The above story is based on materials provided by Society For Conservation Biology. Note: Materials may be edited for content and length.


Cite This Page:

Society For Conservation Biology. "Disturbance Can Benefit Some Rare Forest Plants." ScienceDaily. ScienceDaily, 1 June 2001. <www.sciencedaily.com/releases/2001/05/010529234600.htm>.
Society For Conservation Biology. (2001, June 1). Disturbance Can Benefit Some Rare Forest Plants. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2001/05/010529234600.htm
Society For Conservation Biology. "Disturbance Can Benefit Some Rare Forest Plants." ScienceDaily. www.sciencedaily.com/releases/2001/05/010529234600.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Feast Your Eyes: Lamb Chop Sent Into Space from UK

Feast Your Eyes: Lamb Chop Sent Into Space from UK

Reuters - Light News Video Online (Nov. 25, 2014) Take a stab at this -- stunt video shows a lamb chop's journey from an east London restaurant over 30 kilometers into space. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Cambodian Capital's Only Working Elephant to Retire in Jungle

Cambodian Capital's Only Working Elephant to Retire in Jungle

AFP (Nov. 25, 2014) Phnom Penh's only working elephant was blessed by a crowd of chanting Buddhist monks Tuesday as she prepared for a life of comfortable jungle retirement after three decades of giving rides to tourists. Duration: 00:36 Video provided by AFP
Powered by NewsLook.com
Stray Dog Follows Adventure Racing Team for 6-Day Endurance Race

Stray Dog Follows Adventure Racing Team for 6-Day Endurance Race

Buzz60 (Nov. 24, 2014) A Swedish Adventure racing team travels to try and win a world title, but comes home with something way better: a stray dog that joined the team for much of the grueling 430-mile race. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins