Scientific description Six types of fern plant tropical fern species

Recently, China Biological Diversity Protection and Green Development Foundation (referred to as China Green Fair, Green Club) International Department learned from an internationally renowned journal. : New Tropical Fern Species Described by Science). The International Department of the Green Club now compiles this article for reference for interested readers.

Researchers describe six newly discovered fern plants. They come from tropical forests in Panama, Colombia, Ecuador, and Peru, all of which belong to Danaea.

1. The height of ferns from 20 cm to 2 meters (8-79 inches), some of which are very common in the local area; two species are evaluated as endangered species.

2. Most of the preservation specimens used to describe the new species of hidden pocket fern were collected decades ago, and some can even be traced back to the 19th century.

3. When studying the biological diversity of the Amazon river basin, scientists discovered these specimens from the sample of the specimen room.

4. Researchers describe six newly discovered ferns from Panama, Colombia, Ecuador, and Peruvian tropical forests. They all belong to the genus of hidden sac fern.

Janina Keskiniva, a doctoral researcher at the University of Turku, said in a statement: "The species described are not small or inconspicuous creatures. Their height is from the height. 20 cm to 2 meters, ranging from 8 to 79 inches, some of which are very common in the local area. "

(Image description: Danaea Gracilis is a small (10 cm) ferns, distributed in the Pacific coast, from Ecuador to Columbia to southern Panama. Threat of threat.

Although these species have just been formally described, most of them can be preserved as specimens, dating back to several years or even decades ago, and some can even go back to the 19th century.

For a long time, botanists have been collecting plants in the wild and stored in the plant specimen. Save dry plant samples there to prepare future research and records. Researchers are digging the samples of ancient pocket fern, researching ecology and evolution, the purpose is to understand the biodiversity of Amazon ferns. Due to the insufficient research on tropical ferns, the in -depth research of this pair of saved ferns has produced several new species.

(Image description: Danaea Stricta grows on the Pacific Ocean on the Andes Mountains in Panama and Colombia. This ferns are only collected in five places, which indicates that it is rare and the distribution range is small. Photo by Hanna Tuomisto & Tuomisto2022 .)

Casekini said: "Over the years, specimens have been preserved in different specimen halls. Now, we can combine all the information accumulated by the specimen hall with the new insights obtained from the on -site research we and our colleagues."

Hanna Tuomisto, a professor at the University of Turku and the co -author of the study, said in a statement: "We are particularly interested in which factors determine which species grow up, why they grow, and new, and the new What are the driving factors behind the evolution of species. At the beginning, I was not interested in describing new species, but I soon realized that if the species we are studying have no name, it is impossible to exchange ecology and evolution. "

One of the new species, Danaea Alansmithiii, was first discovered in 1998 that it grew in the dense shrub bushes in the Low Forest of the Columbia -Malaysia River Basin, and the bushes extended several kilometers in every direction. The fern plant is named to commemorate Alan R. Smith, a honorary professor at the University of California Berkeley, Alan R. Smith, and the author believes that he has made a significant contribution to the fern plant system.

(Picture description: Danaea Alansmithii grows in shrubs. You can see it in Rio Carca in Colombia. PHOTO by Hanna Tuomisto FROMKESKINIVA & Tuomisto2022)

"Because of the scarce people in the area, the forest is basically intact, and the new species D. Alansmithii seems to be good. In contrast, another new species Danaea Tenuicaulis has been intensified due to the felling from the tropical rain forest along the Colombian coast. "

D. Tenuicaulis's sample is only seven locations along the coast of Colombia, none of them are located in the protected area. The study stated that the habitat of the plant "continued to decline due to forest cutting and urbanization", so it has been evaluated as dangerous according to the IUCN Red List standard according to the World Nature Protection Alliance. (Image description: Danaea Tenuicaulis was discovered at only seven locations and considered dangerous. PHOTO BY MICHAELKESSLESLESKINIVA & Tuomisto2022.)

Another newly described species, Danaea Stricta, grows on the Pacific side of the Pacific on the Pacific Mountain on Panama and Columbia. This fern plant is only collected in five places, which indicates that it is rare and the distribution range is small. However, because its two known locations are located in the protected area (Chagres National Park and Dalian National Park, both in Panama), there is no threat to the subcontments, so it has been in the red list of endangered species in the World Nature Protection Alliance. Line as the most not concerned issue. The research report states that other species perform well. Danaea Gracilis grows in the protected area, which seems to be relatively rich, and its sub -group is not an imminent threat.

Danaea Lancelata is distributed in the northwest of the Amazon River Basin, from Ecuador to Colombia and northern Peru. Danaea Vanderwerffii appeared in Panama, and there were many plants in the protected area. This fern plant is named after HENK VAN DER WERFF, and he has collected many known specimens of the species.

(Image description: Danaea Alansthiii, D.Tenuicaulis, D.Stricta, and D.VANDERFERFFII species described the location referenced in the description. Source: Keskiniva & Tuomisto2022.).).).).).

Scientists estimate that only 10%of species on the planet have been described, and more plant species need to be discovered.

The "2020 World Plants and fungi status" reported by the Royal Botanic Gardens (Kew) reported: "Every year, with scientists explore world ecosystems, search herbaceous plants and fungi, sort the organ DNA, and the more they are Come more than browsing social media, they will encounter plants and fungal species that have not been described scientifically. "

Researcher Gabriela Zuquim, a researcher at the University of Turku, recently described an irrelevant Dennstaedtiagenus fern plant. She said that the different soil conditions in Amazon created a patchwork habitat, which affected The establishment and evolution of species.

Zu Kim said: "The place where I collect this species is very different from the soil in the forest in the middle of most Amazon. Therefore, I believe there can be more discovery there."

(Image description: Danaea Lancelata found in northwestern Amazon and northern Peru in the northwestern Amazon and northern Peruvian. Photo by Hanna Tuomisto fromkeskiniva & Tuomisto2022.)

For the original text:

https://news.gabay.com/2022/07/between-six- files-Tropical-species-described-described-mc_cid=Ae1463bD0240A

Compilation: daisy

Audit: Xiaoguzu

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