UD expert lists top 10 landscaping plants for Mid-Atlantic

May 7, 2013 under CANR News

Doug Tallamy on the Lepidoptera trail for the Research magazineArmed with a shovel, Doug Tallamy, chair of the University of Delaware Department of Entomology and Wildlife Ecology, is leading a new American revolution, and he wants you to join him.

All you need to do is plant one native tree or shrub in your yard — perhaps an oak or willow tree, a blueberry or cranberry bush.

It isn’t hard to do, it doesn’t cost much and the paybacks, Tallamy says, will be immediate. Caterpillars will begin feeding on these native plants, and then birds will discover the caterpillars and start snapping them up. Add more native plants, and your rewards will be even greater, as a richer web of life springs forth.

In a study of randomly selected homes in suburban developments built from 1990-2005 in New Castle County, Del., and neighboring Chester County, Pa., Tallamy and his colleagues have found that 92 percent of the landscapable area around those homes is lawn, which is akin to a desert in terms of wildlife habitat. On the remaining 8 percent of landscapable area, 75 percent of the plant species are non-natives, and 79 percent of the total number of trees, shrubs and flowers are non-natives, offering very little in the way of food for insects (which do not recognize non-native plants as food) or for birds.

But homeowners can change that. Tallamy, the author of the award-winning bookBringing Nature Home, has identified the top 10 native plants for butterflies and moths in the Mid-Atlantic region. The number-one pick — the oak tree — supports 534 species of butterflies and moths (key food for birds and their nestlings), and the tree’s acorns feed deer, turkeys, bears, squirrels, even wood ducks.

Other top choices range from willow, birch, cherry and plum trees to crabapple and pine trees, blueberry and cranberry bushes. For more of Tallamy’s top selections, download this handy PDF with photos.

“When plants bring life into your yard, it’s instant gratification,” Tallamy says. “It’s especially critical for kids to understand the linkages. By putting native plants in your yard, you can make those connections for the future stewards of our planet.”

For the full story, see this recent article in the University of Delaware Research magazine.

For a video on Tallamy discussing sustainable landscapes, visit UDaily.

Article by Tracey Bryant

Photo by Ambre Alexander

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UD grad student sets up collaborative research with Brazil’s UFLA

May 2, 2013 under CANR News

During spring break, University of Delaware graduate student Allison Rogers spent a week at Brazil’s University Federal de Lavras (UFLA) to secure future collaborations for research on broiler chickens and to assist Carl Schmidt, associate professor in the Department of Animal and Food Sciences, in his research on the global genomic diversity of chickens.

A self-professed “bird lady” who was named a Plastino Scholar in 2011 and traveled the country discussing the importation and smuggling of parrots into the United States, Rogers was able to set up a collaboration with researchers at UFLA that will see her return to the University in June. Her research deals with studying “the effect of alternative lighting technologies such as LED and cold cathode fluorescent (CCFL) light bulbs on the growth and performance of broiler chickens.”

Allison Rogers traveled to Brazil's UFLA campusRogers, a master’s degree student studying animal science in the laboratory group of Eric Benson, associate professor of animal and food sciences, and Robert Alphin, instructor in the department and manager of the Allen Laboratory, explained that incandescent light bulbs traditionally have been used in chicken houses but now growers are moving toward higher efficiency light bulbs and they want to be able to determine whether or not these new lighting technologies have any effect on the growth of their birds, which would impact them economically.

“Our interest in Brazil, particularly in the region that we’re visiting, is that they’re able to raise their birds in completely open houses,” said Rogers, explaining that the chickens are “enclosed within a house but they have enormous windows that are completely open — they have natural ventilation and natural lighting. That is so different from what we have, which is completely enclosed, artificial ventilation and artificial lighting. I’ll be collecting blood samples upon my return, to compare relative stress levels between birds raised under natural light versus birds raised under artificial light.”

Schmidt added that when Rogers goes back in June, her collaborators at UFLA will have “set up a flock for her. They will grow the chickens for five weeks and in June she will begin sampling the birds to evaluate in a fairly straightforward way their immune function and stress levels, and to be able to compare that with the data she’s collected on her own flocks here in Delaware.”

As for this most recent trip, Rogers was assisting Schmidt with his research, helping to collect genetic samples from backyard chickens that will help aid his studies on the genomics of the common chicken and how they respond to different environments — such as very hot and high altitude environments — with the hope that the genetic information will allow livestock breeders in the United States to improve their flocks.

“We took samples using a piece of paper that has been treated so that you can take one drop of blood from an animal and put it on this piece of paper and it will stabilize the sample and destroy any  viruses or bacteria. It allows you to keep that stabilized sample and then analyze it later on,” Rogers explained.

As one who is enthralled with exotic species of birds, Rogers said that just because she was studying chickens in Brazil didn’t mean that she was not able to see exotic species — sometimes getting to do so without even leaving the UFLA campus. “I got made fun of by Dr. Schmidt because at one point we were on the campus and a toucan flew over head and I was just like, ‘Toucan!’” said Rogers. “It was so exciting to see these species that you would never see in the United States and the people in Brazil are just as excited about them as we are, which is really wonderful. They say they’re really proud that the university has kept enough foliage and enough resources for these birds to still be able to live in this quasi-urban setting. That was really important to them.”

Rogers added that she saw similarities between UFLA and UD’s College of Agriculture and Natural Resources, making for a seamless collaborative environment. “UFLA is an agriculturally and historically based university and so we felt very at home when we arrived. There are very strong programs there for horses as well as cattle and so we really just kind of felt at home. Everyone was very welcoming. The students that helped us were just wonderful and so caring.”

About the partnership between UD and UFLA

In 2011, CANR and the College of Arts and Sciences received a $150,000 grant from the United States Department of Agriculture’s National Institute of Food and Agriculture and International Science and Education program (USDA-NIFA-ISE) to continue on a three-year partnership with UFLA.

The hope of this partnership is to establish both long-standing academic programs and research partnerships, with both institutions helping each other in those areas in which their research overlaps.

Article by Adam Thomas

This article can also be viewed on UDaily.

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Largest crowd ever turns out for Ag Day 2013 festivities

May 2, 2013 under CANR News

Ag Day Bird showBeautiful weather, great entertainment and a variety of agricultural and environmental exhibits combined to make Ag Day 2013 the largest in history, with more than 8,000 visitors in attendance.

The record crowd of visitors gathered at the 38th annual Ag Day were able to see over 90 interactive exhibits and witness a variety of demonstrations including a beehive demonstration, a free flight bird show, a Seeing Eye dog demonstration, a tree climbing exhibition, live bands featuring University of Delaware faculty and professionals, and the unveiling of a portrait of Robin Morgan, former dean of the College of Agriculture and Natural Resources (CANR).

New to Ag Day this year were horse-drawn wagon tours of the UD farm put on by Circle C Outfit from Bridgeville, Del., which featured Rick, one of the horses from UD’s herd.

Always popular at Ag Day are the many plant sales by the University of Delaware Botanic Gardens (UDBG), UD Horticulture Club and New Castle County Master Gardeners, and the ice cream from the UDairy Creamery. This year the UDairy Creamery sold ice cream to over 3,600 patrons, practically doubling the amount that they sold at Ag Day 2012.

Also popular was the free flight bird show, which is put on by a CANR alumnus. “One of the unique things that we’ve been able to offer the past few years is we have an animal science alum who does animal training and behavior, who travels around the U.S. to train educators to conduct live bird shows,” explained Katy O’Connell, communications manager in CANR. “At Ag Day, he offers two free flight bird demonstrations where he has macaws, vultures, hawks and even chickens that he trains to do live demonstrations.” The crowd for the 2 p.m. showing topped 500 audience members.

CANR Dean Mark Rieger, having been hired in August 2012, was on hand for his first Ag Day and welcomed those in attendance, saying, “We hope that you learn something about agriculture, and we also hope that you learn something about natural resources — that’s the other part of our name. If you take the farm tour and you go on the carriage ride, you’re going to see wetlands, you’re going to see streams, you’re going to see woods, you’re going to see songbirds. If you go inside, you’re going to have a wildlife display in there, an entomology display, and things like that. So there’s a lot of different things here today; make sure you get around and see all those things.”

Rieger also thanked O’Connell, who led the organization of the event, along with eight undergraduate students, Kim Yackoski, CANR assistant dean, and Latoya Watson, CANR academic adviser, before handing the microphone over to Tom Sims, CANR deputy dean, who had a special presentation for Morgan.

Robin Morgan’s portrait

The portrait — a CANR tradition that sees each dean get their portrait painted and hung in Townsend Hall — was unveiled by Rieger and Sims.

Of Morgan, Sims said, “It was my privilege to work with [Morgan] as associate dean and deputy dean for nine years. She really was committed to our students, our undergraduate students, she was committed to our faculty, she built our faculty by hiring many of our current faculty members and was committed to agriculture and natural resources as she demonstrated throughout her tenure as dean.”

After unveiling the portrait, painted by Kellie Cox, a UD alumna, Sims continued saying, “This is just a small way of saying thank you to Robin for all that she’s done. She’s now back on the faculty getting ready to teach a big class this fall so her commitment to agriculture and our students just goes on and on.”

Rieger echoed these sentiments adding, “I want to thank Robin for coming out today and all the things that she did for the college. It makes my job a lot easier having to step into her shoes when she has done so much for the College of Agriculture and Natural Resources.”

Photos by Danielle Quigley

This article can also be viewed on UDaily.

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Soil may harbor answer to reducing arsenic in rice

May 1, 2013 under CANR News

Drs. Harsh Bias & Janine Sherrier work together with bacteria resistant rice plants at the Greenhouse.Harsh Bais and Janine Sherrier of the University of Delaware’s Department of Plant and Soil Sciences are studying whether a naturally occurring soil bacterium, referred to as UD1023 because it was first characterized at the University, can create an iron barrier in rice roots that reduces arsenic uptake.

Rice, grown as a staple food for a large portion of the world’s population, absorbs arsenic from the environment and transfers it to the grain. Arsenic is classified as a poison by the National Institutes of Health and is considered a carcinogen by the National Toxicology Program.

Long-term exposure to arsenic has been associated with skin, lung, bladder, liver, kidney and prostate cancers, and low levels can cause skin lesions, diarrhea and other symptoms.

The risks of arsenic in rice were recently highlighted in the national press, when arsenic was detected in baby foods made from rice. In regions of the world where rice is the major component of the human diet, the health of entire communities of people can be negatively impacted by arsenic contamination of rice.

Arsenic may occur naturally in the soil, as it does in many parts of Southeast Asia, or it may be a result of environmental contamination. Despite the health risks arsenic in rice poses to millions of people around the world, there are currently no effective agricultural methods in use to reduce arsenic levels.

Sherrier, professor, and Bais, associate professor, are investigating whether UD1023 — which is naturally found in the rhizosphere, the layer of soil and microbes adjacent to rice roots — can be used to block the arsenic uptake. Bais first identified the bacterial species in soil samples taken from rice fields in California.

The pair’s preliminary research has shown that UD1023 can mobilize iron from the soil and slow arsenic uptake in rice roots, but the researchers have not yet determined exactly how this process works and whether it will lead to reduced levels of arsenic in rice grains.

“We have a bacterium that moves iron, and we want to see if creating an iron shield around the rice roots will slow arsenic movement into other parts of the plant,” Bais said.

Sherrier and Bais, who received a 2012 seed grant for the project from Delaware’s National Science Foundation Experimental Program to Stimulate Competitive Research (EPSCoR), ultimately want to determine how UD1023 slows arsenic movement into rice roots and whether it will lead to reduced levels of arsenic in the rice grains, the edible portion of the plant.

“That is the most important part,” Bais said. “We don’t know yet whether we can reduce arsenic in the grains or reduce the upward movement of arsenic towards the grain, but we’re optimistic.”

Bais says that, if successful, the project could lead to practical applications in agriculture.

“The implications could be tremendous,” he said. “Coating seeds with bacteria is very easy. With this bacteria, you could implement easy, low-cost strategies that farmers could use that would reduce arsenic in the human food chain.”

Article by Juan C. Guerrero

Photo by Kathy F. Atkinson

This article can also be viewed on UDaily.

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Rieger, Rodgers and Allen attend rural economy summit in Washington

May 1, 2013 under CANR News

Chris Coons talks with Mark Rieger, Michelle Rodgers and Melanie AllenMark Rieger, dean of the College of Agriculture and Natural Resources (CANR), Michelle Rodgers, associate dean and director of University of Delaware cooperative extension, and Melanie Allen, a senior studying wildlife conservation in the Department of Entomology and Wildlife Ecology, recently participated in a half-day summit on issues of importance to rural communities across the nation. The event featured U.S. Senator Chris Coons (D-Del.), and was hosted by the Senate Democratic Steering and Outreach Committee and featured two moderated panels focused on rural economics, infrastructure, and access to critical services.

The panel highlighted the economic conditions facing rural communities and the agriculture industry, and what role the federal government can play in ensuring long-term support for the communities. Issues discussed during the summit included the importance of investing in the health of farmland, natural resources, and infrastructure. Another topic of discussion was connecting farmers and ranchers with consumers, including individuals, schools, hospitals and businesses.

“Our rural communities are central to our identity, our economy, and our values,” said Coons. “Between our agriculture sector, environmental conservation, and tourism, it’s no surprise that Delaware’s rural communities are thriving. It’s important that we continue to facilitate an open dialogue between our rural communities and our elected officials to ensure we aren’t hindering their growth and development. I thank the members of the University of Delaware for attending today’s event and sharing their views on how we can strengthen our state’s rural areas.”

More than 200 rural development advocates attended the summit.

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New minor brings together science, humanities to study complex issues

April 30, 2013 under CANR News

New environmental humanities minorA new undergraduate minor will use tools and insights from the humanities to extend and strengthen the University of Delaware’s longstanding expertise in exploring environmental issues through the natural sciences, engineering and public policy.

The interdisciplinary minor in environmental humanities received final approval from the University’s Faculty Senate at its March meeting.

Students in the environmental humanities minor will take three core courses — Environmental Literature (in the Department of English), Nature and History (Department of History) and Environmental Ethics (Department of Philosophy) — and three electives. One elective is required to be from the humanities, one from the sciences and one from either humanities or social sciences.

The electives encompass numerous departments and colleges at UD, including art history, anthropology, biology, animal and food sciences, wildlife conservation, entomology, geography, communication and sociology, among others.

From the College of Agriculture and Natural Resources, Susan Barton, extension specialist and associate professor of plant and soil sciences, and Jacob Bowman, associate professor of wildlife ecology, were part of a larger University-wide group that helped plan UD’s environmental humanities initiative.

To read more about the new minor, check out the story on UDaily.

Article by Ann Manser

Photos courtesy of McKay Jenkins and by Kathy F. Atkinson and Evan Krape

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Electronic Recycling Day

April 29, 2013 under CANR News

In an effort to reduce the amount of electronic refuse sent to landfills, the Longwood Graduate Program will collect unwanted and broken mechanical and electronic items for recycling.

Please bring your unwanted mechanical and broken electronic items to the Townsend Hall Commons on Friday May 10 between 11a.m.-2p.m.  The Longwood Graduate Fellows will be on hand to receive and take the items to UD Recycling.Remember to bring in your unused cell phones. They will be sent to the National Coalition Against Domestic Violence for their “Donate a Phone Program.”  At the previous electronic recycling day, about a dozen phones were collected, so the Longwood Graduate Program is hoping to top that this time around.

For questions regarding Electronic Recycling Day please email cyling@udel.edu

Click here for a list of items that can be recycled.

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Arthritis and Agriculture

April 25, 2013 under CANR News

Arthritis affects approximately one-third of all adult farm operators and is considered one of the leading causes of disability by customers of the USDA AgrAbility Project. With the average age of the American farmer now above 57, increasingly more farmers will find the tasks difficult to complete. For example arthritis can cause significant impairments to one’s mobility, dexterity, capacity to lift heavy loads and emotional well-being due to unmanaged pain and other factors.

Arthritis is an umbrella term for more than 100 diseases that can affect the joint and surrounding tissue. Common forms of arthritis include osteoarthritis, rheumatoid arthritis, osteoporosis, gout, and fibromyalgia.

Arthritis is considered one of the most disabling conditions a farmer can face and is the leading cause of disability of farmers in the Mid-Atlantic area. Arthritis affects approximately one-third of all adult farm operators. As work tasks become more difficult, many farmers and agricultural workers may not even associate the pain with arthritis. Signs and symptoms of arthritis include the following:

  • Persistent pain
  • Stiffness, swelling, redness or heat in the joint
  • Difficulty in moving the joint
  • Possible fatigue, weight loss and nausea

Arthritis is especially detrimental to farmers and farm workers because of the nature of their work. Many farm chores such as mounting tractors, baling hay, feeding livestock, harvesting vegetables, milking cows, operating equipment, cleaning out broiler houses require strength, dexterity, and mobility, which are lessened by the effects of arthritis.

According to medical professionals there are benefits of exercise for farmers with arthritis. Exercise can help you manage arthritis pain and reduce the disability as well as increase energy levels, help with sleep and decrease depression and fatigue. Exercise is also considered very important for healthy joints. Moving your joints helps keeps them fully mobile and strengthens the surrounding muscles which help support the joints.

Since there is no known cure for arthritis, education and awareness of pain management techniques are considered the best practice for treating the disease. This includes but is not limited to joint protection, work simplification and stress reduction. A few solutions that can be implemented to help control joint stress and pain in farming include the following:

  • Wear quality, non-slip footwear
  • Use appropriate assistive aids such as automatic couplers, mobility devices, hydraulic lift table, shop hoists, powered cordless caulk guns and more
  • Adhere to proper posture when sitting for long periods of time in tractors
  • Use large muscle groups to complete a task. For example use the legs instead of the back to lift.
  • Avoid gripping and grasping for long periods of time.
  • Simplify jobs and tasks
  • Pace yourself throughout the day

Arthritis is a debilitating disease, but it is manageable. You will be able to farm productively and safely. The Mid-Atlantic Agrability Project and the Arthritis Foundation are willing to help in any way that they can. They promote technologies and given your tenacity and willingness to try, you can preserve your livelihood on the farm.

For more information on arthritis please visit Mid-Atlantic Agrability on the web at www.mid-atlanticagrability.com or visit the Arthritis Foundation at www.arthritis-ag.org.  You may also call Mid-Atlantic Agrability toll free at 1-877-204-FARM (3276) for a DVD titled Gaining Ground on Arthritis in the Agricultural Workplace and a brochure titled “Arthritis and Agriculture”.

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Animal Science Club to screen the film “Temple Grandin”

April 25, 2013 under CANR News

The Animal Science Club will host a viewing of the award winning HBO film Temple Grandin on Wednesday, May 1, at 5:30 p.m. in 006 Kirkbride Hall. The film stars Claire Danes as Temple Grandin, and portrays the early life and career of Grandin, the challenges she faced and her accomplishments as a young woman growing up with autism.

Grandin is a professor of animal science at Colorado State University. She teaches courses on livestock behavior and facility design and consults with the livestock industry on facility design, livestock handling and animal welfare. She has designed livestock handling facilities located in the United States, Canada, Europe, Mexico, Australia, New Zealand and other countries.

Nearly half of the cattle in North America are handled in a center track restrainer system that Grandin designed for meat plants. Her research interests include cattle temperament, environmental enrichment for pigs, bull fertility, training procedures, and effective stunning methods for cattle and pigs at meat plants.

Grandin has authored several books including: Thinking in Pictures, Livestock Handling and Transport, Genetics and the Behavior of Domestic Animals, and Humane Livestock Handling. Her books Animals in Translation and Animals Make Us Human were both on the New York Times best-seller list.

The film will be introduced by Carissa Wickens, assistant professor in the Department of Animal and Food Sciences, who recently co-authored a chapter on horse handling and transport for Grandin’s 4th edition of Livestock Handling and Transport. Wickens also had the privilege of serving as a judge alongside Grandin during the Collegiate Animal Welfare Judging Competition held at Michigan State University in the fall of 2011.

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UD team wins first place in East Coast regional Linnaean Games

April 23, 2013 under CANR News

Entomology Graduate student team won the east coast regional Linnaean GamesA group of four University of Delaware graduate students studying in the Department of Entomology and Wildlife Ecology bested teams from Penn State, Virginia Tech and the University of Maryland to win first place in a regional match in the Entomological Society of America’s Linnaean Games, a competition in which teams are quizzed on entomological questions.

Having won the East Coast regional competition, the UD team will head to Austin, Texas, to compete in the national competition in November.

Team members include Scott Berg, Ashley Kennedy, Kaitlin Handley and David Gardner, all master’s degree students, with Kennedy having just completed her program.

In the first round of the tournament, the team defeated Virginia Tech and later topped Penn State in the finals. Each round lasted about 20 minutes and consisted of 16 questions. If a team got an answer correct, they were given a bonus question.

While some of the other teams had coaches to help them prepare for the Linnaean Games, the UD team had no such help. “Some schools take it really seriously and every year they have coaches,” explained Handley. “This is the first year that UD put together a team and it was all Ashley’s doing.”

Even though the team didn’t have a coach, Kennedy was able to find something extremely helpful on-line that helped the team prepare for the competition — YouTube videos of past competitions. She transcribed the questions and the answers from those past tournaments and handed them out to her teammates.

Watching the videos of past tournaments, however, did have some consequences, as well, with team members getting a glimpse of just how challenging the questions would be. “Hearing some of the questions that Ashley transcribed and watching some of the videos, oftentimes, they’ll ask a question and neither team gets it and then they’ll just turn to the audience for fun and say, ‘Does anyone know it?’ and the audience is silent,” said Berg. “So we were thinking that this was going to be pretty tough. But the questions they had this year — I don’t know if it was just luck or what — but they seemed a little bit more manageable.”

Kennedy also explained that while the team didn’t have a coach, they didn’t consider themselves underdogs. “We did have more of an advantage than some of the other schools just because we do have a good variety of entomology classes here that cover all the basic areas.” 

Gardner, who is relatively new to the entomology field having studied behavioral neuroscience as an undergraduate, agreed with that assessment, saying that the entomology department at UD is “great. The professors are great, colleagues are great, everyone is really interesting, so I enjoy it.”

Winning the Linnaean Games was not the only prize the group took home from the conference as Berg also won second place in oral presentation.

The team is now looking forward to the national competition and attending the five-day conference, with the hopes of recruiting a coach to help them prepare.

Kennedy noted that Charles Bartlett, associate professor of entomology and wildlife ecology, has agreed to coach them prior to the national competition.

Article by Adam Thomas

Photo by Danielle Quigley

This article can also be viewed on UDaily.

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