A new baseline of invasive plants in Isabela

Oct 17, 2007

Charles Darwin Foundation (CDF) botanists have published a list of all the introduced plants growing in Puerto Villamil, Isabela Island, the third largest town in Galapagos. 261 species were recorded, 39 of which were found growing wild.

Despite 95% of the archipelago falling under the Galapagos National Park, invasive plants spreading from the inhabited areas are having large impacts on the native flora and fauna.

Anne Guezou, one of the botanists of CDF, says: "Thanks to the cooperation of residents we were able to visit every property in Puerto Villamil and obtain the first complete baseline of introduced species."

Five species were identified as potentially serious weeds that should be completely eradicated from the island, including the "lead tree" Leucaena leucacephela, regarded as one of the worst tropical weeds.

"By identifying invaders before they become widespread, and investing in their eradication or control we can protect this World Heritage site from their impacts." says Guezou. She adds, "Early detection must go hand in hand with preventing the arrival of more non-native plants into Galapagos".

Staff at the Charles Darwin Research Station are working with the Galapagos National Park and SESA (Ecuadorian Agricultural Health Service) to prevent importation of plants from mainland Ecuador.

This work was accomplished with the support of Project "Control of Invasive Species in the Galapagos Archipelago", a donation from the Global Environment Facility (GEF) to the Ecuadorian Government, represented by the Ministry of Environment.

Source: Public Library of Science

Explore further: Census: Orca population in Puget Sound falling

add to favorites email to friend print save as pdf

Related Stories

Tablet sales slow as PCs find footing

32 minutes ago

Tablets won't eclipse personal computers as fast as once thought, according to studies by market tracker International Data Corporation (IDC).

China's Alibaba plans IPO for week of September 8

2 minutes ago

Chinese e-commerce giant Alibaba plans to hold its initial public offering on the US stock market the week of September 8, the Wall Street Journal reported Saturday, citing a person familiar with the matter.

Startups offer banking for smartphone users

42 minutes ago

The latest banks are small enough to fit in the palm of your hand. Startups, such as Moven and Simple, offer banking that's designed specifically for smartphones, enabling users to track their spending on the go. Some things ...

Recommended for you

Team defines new biodiversity metric

Aug 29, 2014

To understand how the repeated climatic shifts over the last 120,000 years may have influenced today's patterns of genetic diversity, a team of researchers led by City College of New York biologist Dr. Ana ...

Danish museum discovers unique gift from Charles Darwin

Aug 29, 2014

The Natural History Museum of Denmark recently discovered a unique gift from one of the greatest-ever scientists. In 1854, Charles Darwin – father of the theory of evolution – sent a gift to his Danish ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

Elenneth
not rated yet Oct 17, 2007
I am glad that they are taking an interest in preventing the spread of invasive species.

Of only people here had taken a more rigorous stance against the introduction and spread of introduced species, notably things such as kudzu (the vine that ate the south), fire ants, zebra mussels, etc.

I wonder what comments those people who advocated the planting of kudzu to drain the southern swamps and wetlands would say now if they saw entire acres of land covered with nothing but a sea of green kudzu leaves.