Wednesday, September 10, 2014

An apple a day...makes the wildlife stay

Kristen Tyson, M.A.


Apples are a fruit that humans have enjoyed since the early 1600s, when the first tree was said to have been brought over by English settlers. The diverse uses of the apple, and help from the catchy story about Johnny Appleseed, has led the apple to be the second most consumed fruit (with oranges in the lead) in the United States. There are over 2,500 varieties grown in the states, and an average of 50+ pounds consumed per year by Americans (with around 19 pounds being fresh apples) (1). 

It turns out humans are not the only species to enjoy the crispness of apples either. A broad range of animals have been known to cross a fence boundary or two to get to these rich fruits, to the annoyance of landowners. But what if I told you that wildlife can benefit from an orchard, not just an apple one, and in turn benefit you? 

Old, abandoned orchards have proven to be ideal habitat for wildlife, offering food, cover, and nesting opportunities for large and small animals. A study on deserted orchards found that the whole tree, not just the fruit or nuts, afforded ample nutritional resources for mice, bats, deer, rabbits, turkey, coyotes and bobcats, especially during the winter months when food is scarce. And, the herbaceous ground cover from un-manicured trees and rows offered great successional habitat. Aside from the trees and fruit or nuts offering abundant resources, overgrown grasses and shrubs invite insects to feast, which is a great protein source for recently hatched young.

 Rio Grande turkeys roosting near an abandoned orchard

Orchards were quite popular before the 1960s, but it has gotten harder and harder to find these jewels. If this is the case, planting a wildlife orchard, over food patches or crops, can achieve the same results, with a little time and patience. The good news about planting your own trees is that you can choose how dense or sparse you want the landscape to be and what kind of trees would best benefit wildlife. Experimenting has shown that “hardiness, disease resistance, productivity, and late season availability are key attributes for wildlife orchard trees” (2).  Remember to plant trees that thrive in your soil and can meet the chill hours suggested (3).

Invariably, deer or other wildlife may be attracted to your orchard before you are ready, and studies “indicate that protection from deer browsing during the first season after planting trees is most critical. When young trees grow vigorously, protection for as little as 2 years after planting may prevent serious damage from deer browsing” (4). Like with any other agricultural production, safeguarding early against pre-browsing, weather and insect damage will yield best results for your orchard.

A study on avocado orchards in California found that “agricultural lands have potential to contribute to conservation by providing habitat or facilitating landscape connectivity” (5). For this particular study, mammalian carnivores (coyote, skunk, bobcat, raccoon, etc.) were monitored by trail cameras with the idea that agricultural landscapes offer an important corridor and should be considered when creating a management plan. They found that where orchards were planted in quality carnivore habitat, the mammals were more likely to visit the orchards over nearby protected natural areas. While there were many factors that could have contributed to this preference, it is interesting to find that so many species enjoy fresh produce.

Orchards can vary in their management plan, depending on what wildlife species landowners seek to attract. A more open and trimmed back orchard will entice brood-rearing animals and native birds, while a more shrubby orchard with herbaceous ground cover will draw in wildlife more adapted to a less exposed habitat such as white-tailed deer.

If you are planning on simply viewing wildlife interactions from your back porch, then a more open concept would fit best. Pruning back trees can also benefit hunters who can take advantage of a higher perch for their wildlife viewing, and with a little skill, harvest.

Contact your local County Extension Office for more information on planning your wildlife orchard.



Literature Cited:            
                                                          
1. Binghampton University Newsroom. “Ask a Scientist.” Web. 21 Jan. 2011. 6 Sept. 2014. http://www.binghamton.edu/news/the-newsroom/ask-a-scientist/?date=2011-01-31

2. Jackson, Jeffrey J. “Wildlife Orchards-Plant Your Own.” Wildlife Trends.”  7:6 (2007). Print.

3. Year Round Gardening for Metro Houston. Chill and Low Temperature Zones for Southeast Texas. Web. January 2013. 6 Sept. 2014. http://yearroundgardening.files.wordpress.com/2013/01/zone-summaries-revised-zone-summary.pdf
 
4. Mower, Kerry J., Thomas W. Townsend, and William J. Tyznik. “White-tailed Deer Damage to Experimental Apple Orchards in Ohio.” Wildlife Society Bulletin, 25:2 (Summer, 1997): 337-343. Web. 6 Sept. 2014. http://www.jstor.org/stable/3783452
 
5. Nogeire, Theresa M., Frank W. Davis, Jennifer M. Duggan, Kevein R. Crooks, and Erin E. Boydston. “Carnivore Use of Avocado Orchards across an Agricultural-Wildland Gradient.” PLOS One, 8:7 (2013): 1-6. http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0068025&representation=PDF  

Additional Resources:         

Cotner, Sam, and Frank J. Dainello. “Texas Home Vegetable: Gardening Guide.” AgriLife Communications at Texas A&M University. Web. 10 Sept. 2014. : http://aggiehorticulture.tamu.edu/organic/files/2011/03/E-502_home_vegetable_guide.pdf

 Fact Sheet for Fruit and Nut Varieties for Texas: http://harris.agrilife.org/files/2011/05/fruitnut.pdf