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<p align="center" style="margin:0in;margin-bottom:.0001pt;text-align:center"><strong><span style="font-size:14.0pt;color:black">New Smithsonian Study Links Declines in Suburban</span></strong><span style="font-family:"Calibri",sans-serif;color:black">
</span><strong><span style="font-size:14.0pt;color:black">Backyard Birds to Presence of Non-native Plants</span></strong><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<em><b><span style="font-size:13.0pt;color:black">Findings Give Landowners a Simple Roadmap To Provide</span></b></em><span style="font-family:"Calibri",sans-serif;color:black">
</span><em><b><span style="font-size:13.0pt;color:black">Essential Habitat for Breeding Birds</span></b></em><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;text-indent:.5in;line-height:20.2pt"><span style="color:black">Insect-eating birds that depend on the availability of high-calorie, high-protein cuisine—namely caterpillars and spiders—during the breeding season to
feed their young are finding the menu severely lacking in backyards landscaped with even a small proportion of non-native plants, according to a <a href="http://www.pnas.org/content/early/2018/10/16/1809259115" target="_blank">new study</a> from the Smithsonian
Conservation Biology Institute. This reduction of food availability has led to a decline in the breeding success and population growth of the Carolina chickadee, the study found.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">“Landowners are using nonnative plants in their yards because they’re pretty and exotic, they’re easy to maintain, and they tend to have fewer pests on them,” said Desirée Narango, a graduate student researcher at the Smithsonian Conservation
Biology Institute and first author of the study published October 22 in <em>PNAS</em>. “But it turns out that a lot of those insects they see as pests are actually critical food resources for our breeding birds. For landowners who want to make a difference,
our study shows that a simple change they make in their yards can be profoundly helpful for bird conservation.”</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">The study is the first to directly link the decline of a common resident bird species to the lack of insect prey that results from the use of nonnative plants in landscaping. Narango and colleagues placed nest boxes in more than 160
yards in the Washington, D.C., metropolitan area and collected data from homeowners monitoring the nest boxes weekly for Carolina chickadee nests, eggs and nestlings. In those same yards, they also studied adult and juvenile survival by gathering data from
the homeowners on individually marked birds they had resighted.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">The researchers found that the only yards that were able to produce enough chickadees to sustain a stable population were those with a plant composition made up of more than 70 percent of native plants. Because more than 90 percent
of herbivorous insects will only eat one or a few native plants, the use of these plants in landscaping is essential to ensure breeding birds have enough insect prey to eat. For the same reason, native plants are also likely critical for other resident birds,
endangered species and migratory species—and not just in backyards on the East Coast.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">“These novel, artificial suburban landscapes are found across the country,” Narango said. “But a gingko that you plant in D.C. and a gingko that you plant in L.A. are doing the same thing for bird conservation—nothing. By using native
plants, we can provide food for not only our common North American species, but we’re also providing vital stopover habitat and resources for migratory birds during their perilous journeys.”</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">Because more than 80 percent of land in the contiguous United States is privately managed, conservationists are trying to get a handle on the ways these human-dominated landscapes threaten wildlife—and how they can be managed in a
way that can help. The study’s authors will continue to guide landowners in their landscaping decisions by next looking at whether some native plant species are disproportionately important for supporting insect prey to breeding birds.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">This study was conducted in partnership with the University of Delaware and funded by the National Science Foundation. It relied on data collected by landowners participating in the Smithsonian’s
<a href="https://neighborhoodnestwatch.weebly.com/">Neighborhood Nestwatch</a> program, a citizen-science program that engages communities in monitoring the annual survival and reproductive success of specific bird species.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black">“Urbanization is one of the primary ways we’re losing natural habitat around the world, and it remains essential that we figure out how we minimize our impacts while maximizing the protection of biodiversity,” said Pete Marra, director
of the <a href="https://nationalzoo.si.edu/migratory-birds" target="_blank">Smithsonian Migratory Bird Center</a> and co-author of the paper. “By working together with citizen scientists participating in the Neighborhood Nestwatch program, people actually
living within the urban matrix, we have collectively found a solution that’s good for birds and also for people.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black"> Resources on native plants can be found online at Audubon’s </span><u><span style="color:#0563C1"><a href="https://www.audubon.org/native-plants">Native Plants Database</a></span></u><span style="color:black">, National Wildlife Federation’s </span><u><span style="color:#0563C1"><a href="https://www.nwf.org/NativePlantFinder/">Native
Plant Finder</a></span></u><span style="color:black"> and the United States Department of Agriculture’s </span><u><span style="color:#0563C1"><a href="https://planthardiness.ars.usda.gov/PHZMWeb/">Plant Hardiness Zone Map</a></span></u><span style="color:black">.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<span style="color:black;background:white">The </span><u><span style="color:#0563C1;background:white"><a href="https://nationalzoo.si.edu/conservation/">Smithsonian Conservation Biology Institute</a></span></u><span style="color:black;background:white"> plays
a leading role in the Smithsonian’s global efforts to save wildlife species from extinction and train future generations of conservationists. SCBI spearheads research programs at its headquarters in Front Royal, Virginia, the Smithsonian’s National Zoo in
Washington, D.C., and at field research stations and training sites worldwide. SCBI scientists tackle some of today’s most complex conservation challenges by applying and sharing what they learn about animal behavior and reproduction, ecology, genetics, migration
and conservation sustainability.</span><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black">The paper’s third author is Douglas W. Tallamy with the University of Delaware.</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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