Thursday, September 19, 2013

Care about the beetles!

Care for the the American burying beetle, (Nicrophorus americanus)
What is it?
The American burying beetle historically ranged from at least 150 counties in 35 states in the eastern and central United States. The American burying beetle has only been identified to have populations in four states: Nebraska, Rhode Island, Oklahoma and Arkansas. While Massachusetts failed at reintroduction in 1997, Ohio is trying to reintroduce a population of American burying beetles still today.
Why is it extinct?
 The American burying beetle is believed to have gone extinct by 1923 due to increased edge effects and crippling anthropogenic conditions. The large historic range provides that the American burying beetle did not require very specific habitat or climate conditions, just that the region had a summer with temperatures above 15 degrees Celsius/60 Fahrenheit. The decline is directly linked to human population increases and the increased edge effect which resulted from the land use changes (agriculture, pavement). The greatest factor of their extinction has been the changes/decreases in plant and animal carrion (dead remains) in their natural habitat. Another factor of their decline is their poor response to light pollution associated with cities and suburbs as they are nocturnal. 
Why should I care?
The American burying beetle is important to ecosystem productivity as it not only is a food source for many tertiary species, but it serves the important role of feeding on microbes and fly eggs of carrion. Essentially their presence accelerates productivity by increasing the cycling of nutrients and preventing the manifestation of diseases in carrion which will be consumed by scavengers. Additionally their anatomy could be invaluable for scientific and medical research.
What action is being taken?
Not a lot. The U.S. Fish and Wildlife services has established a recovery plan that is still active. The plan mostly includes identifying remaining populations in Eastern States and protecting them from land development of state or federal agencies. There is some reintroduction from the U.S. Fish and Wildlife service in southeast Ohio. Populations in the remaining 4 states are being monitored and provided protection over their critical habitats under the ESA.
What can you do or not do?
Raise awareness about this species and the impact of light pollution and habitat fragmentation. Do not support development practices which alters the distribution of plant and animal carrion and fragment their habitat. Be aware of what the look like and don’t disturb them. As there are many factors contributing to their demise, reintroduction is not entirely realistic until we can remove the factors that caused their extinction. That said, populations could revitalize if we remove some anthropogenic changes to our natural environment.