Which U.S. states have the most endangered species? [Infographic] | MNN - Mother Nature Network

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> http://www.mnn.com/earth-matters/wilderness-resources/blogs/which-us-states-have-the-most-endangered-species <http://www.mnn.com/earth-matters/wilderness-resources/blogs/which-us-states-have-the-most-endangered-species>
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> Which U.S. states have the most endangered species? [Infographic]
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> <http://media.mnn.com/assets/images/2015/09/endangered-2015.png>
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> When U.S. lawmakers passed the Endangered Species Act <http://www.mnn.com/earth-matters/politics/blogs/endangered-species-act-stirs-new-debates> in 1973, many of North America's most iconic plants and animals were teetering on the brink of extinction. Some of those have since rebounded thanks to three decades of federal protection, and several dozen have even been "delisted," including American alligators <http://www.mnn.com/home-blog/mnn-earth-days/blogs/june-4>, bald eagles <http://www.mnn.com/earth-matters/animals/stories/bald-eagles-a-conservation-success-story>, brown pelicans <http://www.mnn.com/earth-matters/wilderness-resources/photos/gulf-oil-spill-animals-at-risk/pelican>, eastern Stellar sea lions <http://www.mnn.com/earth-matters/animals/stories/sea-lion-species-removed-from-endangered-species-list>, Tennessee purple coneflowers <http://ecos.fws.gov/speciesProfile/profile/speciesProfile.action?spcode=Q1VU> and the Oregon chub <http://www.mnn.com/earth-matters/animals/blogs/us-endangered-species-list-finally-saves-a-fish>.
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> Despite such success stories, however, the global effort to stop Earth's sixth mass extinction <http://www.mnn.com/earth-matters/animals/blogs/6-things-to-know-about-earths-6th-mass-extinction> is far from over. The U.S. still ranks No. 2 worldwide in endangered species by country <http://www.mnn.com/earth-matters/animals/stories/infographic-top-20-countries-with-most-endangered-species>, behind only Ecuador, with about 1,500 domestic species listed. (Those are also joined by nearly 600 foreign species, which are listed in the U.S. to help control international wildlife trafficking <http://www.mnn.com/earth-matters/animals/blogs/us-trains-dogs-to-sniff-out-wildlife-traffickers>). According to a 2015 study, species are now disappearing up to 114 times more rapidly than the historical "background" extinction rate.
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> <http://media.mnn.com/assets/images/2015/09/stuffed-passenger-pigeon.jpg.838x0_q80.jpg>A stuffed passenger pigeon on display at the Cleveland Museum of Natural History. (Photo: James St. John <https://www.flickr.com/photos/jsjgeology/15374997397>/flickr)
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> Americans have already watched — and helped — several ancient species die out during the country's brief history, perhaps none more notoriously than the passenger pigeon <http://www.mnn.com/earth-matters/animals/blogs/ode-to-martha-the-last-passenger-pigeon>. The U.S. government is now trying to protect hundreds more from that fate, a task that involves exhaustive research into things like population trends, habitat size and reproduction rate, not to mention collaboration with local governments and landowners. The number and urgency of endangered species also vary widely by state, as the infographic above illustrates, requiring customized plans for each one's recovery.
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> Hawaii has less than 0.2 percent of U.S. land area, for example, yet more than 25 percent of all federally endangered species are found there. Most are plants and birds, threatened mainly by invasive species and habitat loss. Nationwide, flowering plants represent more than half of listed species, followed by fish, birds, mammals and clams. But that still isn't the whole picture, since 144 <http://ecos.fws.gov/tess_public/SpeciesReport.do?listingType=C> "candidate species <http://www.fws.gov/endangered/what-we-do/candidate-conservation-process.html>" are still waiting to join the list, a limbo that can last years.
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> Russell McLendon <http://www.mnn.com/users/rmclendon> is science editor at MNN. Follow him on Twitter <https://twitter.com/russmclendon> and Google+ <https://plus.google.com/u/0/+RussellMcLendon/posts>.
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