2013年加州科学院发现91种新物种

In 2013, researchers at the California Academy of Sciences discovered 91 new plant and animal species and two new genera, enriching our understanding of the complex web of life on Earth and strengthening our ability to make informed conservation decisions. The new species, previously unknown to science, include 38 different ants, 12 fishes, 14 plants, eight beetles, two spiders, one reptile, and one amphibian. In addition, Academy scientists discovered a new genus of beetle and a previously unidentified genus of sea fan.

More than a dozen Academy scientists along with several dozen international collaborators described the newly discovered plants and animals. Proving that there are still plenty of places to explore and things to discover on Earth, the scientists ventured into remote jungles and descended to the bottom of the sea, looked in their own backyards (California) and explored the other side of the world (Africa). Their results, published in more than 30 scientific papers, help advance the Academy's research into two of the most important scientific questions of our time: "How did life evolve?" and "How will it persist?" "Our best estimates are that we have discovered and described less than 10 percent of the life forms on Earth," said Dr. Terry Gosliner, Dean of Science and Research Collections at the Academy. "As we race to discover the other 90 percent of the species that make up the tapestry of life, we are focusing our efforts on global biodiversity hotspots -- places that are both unusually diverse and highly threatened, including many tropical forests, coral reef communities and our own backyard, California." Below are a few highlights among the 91 species described by the Academy this year. 

Madagascar's list of endemic species grows 

The islands of the southwestern Indian Ocean, especially Madagascar, are composed of extremely fragmented natural habitats and are renowned for hosting many endemic species -- those that cannot be found anywhere else on Earth. This is a place the California Academy of Sciences considers a global biodiversity hotspot. However, Madagascar's biodiversity is increasingly threatened, adding new urgency to the research being conducted on the island. This year, Academy scientists were able to identify 38 previously unknown ant species, seven new plants and two new spider species from Madagascar.

Academy scientist Brian Fisher, an entomologist who specializes in the study of ants, calls them "the glue that holds ecosystems together." "Ants are one of the most important members of ecosystems," says Fisher. "They turn over more soil than earthworms." But they're also some of the most overlooked, he says. "If they were bigger, they would be the most studied type of organism, but people don't see them."

Now, Fisher and his team are able to look for these small creatures in a new way. Recently, satellite companies and engineers from Google have provided Academy researchers with high-resolution satellite images of some of the least explored areas of Madagascar. Equipped with a GPS-enabled tablet loaded with customized software and recent high-res images, Fisher and his colleagues can identify which patches of forest are most likely to contain new species of ants based on their elevation, vegetation and adjacent habitats.

The work being done by Academy scientists is helping to correct a long-standing bias in habitat conservation. "If you base conservation on just vertebrates," Fisher says, "it leads you to conclude that only the largest forests are important. Ants and other insects provide a better map of true biodiversity."