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Connections found between wetland cover, transmission rates of hemorrhagic disease
Ecologists at the University of Georgia have discovered complex and surprising relationships between land cover and rates of transmission, illness and death from hemorrhagic disease in white-tailed deer.
A pair of studies recently published in PLoS One and the Journal of Wildlife Diseases show that areas with the highest rates of disease transmission have the lowest rates of actual disease. Outbreaks of illness instead appear to be related to moderate rates of transmission and to increases in wetland cover nearby. The researchers found no evidence of a link between increases in wetland cover and increases in deaths from the disease, however.
Online Athens
25 Jul 2013
A Park
Cited Journal Articles
Park AW, Magori K, White BA, Stallknecht DE (2013) When More Transmission Equals Less Disease: Reconciling the Disconnect between Disease Hotspots and Parasite Transmission. PLoS ONE 8(4): e61501. doi:10.1371/journal.pone.0061501
Brett S et al. (2013) WETLAND COVER DYNAMICS DRIVE HEMORRHAGIC DISEASE PATTERNS IN WHITE-TAILED DEER IN THE UNITED STATES. J Wildl Dis 49(3): 501-509. doi: 10.7589/2012-11-283
Environment: Pesticides may be at the root of bee, bat and amphibian die-offs
Suppressed immune systems making insect-eating species more susceptible to different pathogens
Waves of emerging wildlife diseases that are killing huge numbers of insect-eating animals could all be linked to the use of a new class of pesticides, according to a study recently published in the Journal of Environmental Immunology and Toxicology.
Neonicotinoids and related pesticides may be suppressing the immune system of bees, bats and even amphibians, making them much more susceptible to parasites, viruses and fungal infections, the researchers found after comparing geographical patterns of emerging diseases with the use of neonicotinoids.
Summit County Voice
21 Jul 2013
B Berwyn
Cited Journal Article
R Mason et al. Immune Suppression by Neonicotinoid Insecticides at the Root of Global Wildlife Declines. J Environ Immunol Toxicol. 2013; 1(1): 3-12. doi: 10.7178/jeit.1
Sick Sea Fans: Undersea "Doctors" to the Rescue
The marine ecologists have trained their undersea eyes on a particular sea fan species, Gorgonia ventalina, or the purple sea fan, found in the western Atlantic Ocean and the Caribbean Sea.
The team has monitored sea fan health in the Florida Keys, Mexican Yucatan and Puerto Rico for the past 15 years. The most recent research, in collaboration with Ernesto Weil of the University of Puerto Rico, is underway on reefs at La Parguera, Puerto Rico.
... In a paper published earlier this year in The Annual Review of Marine Science, Harvell, Burge and other scientists reviewed climate change influences on marine infectious diseases.
Now the scientists are using the purple sea fan as a model for studying ocean diseases. "We're looking at microbial infection, pathways of defense and the health of this sea fan in the face of warming waters and climate change," says Harvell.
National Science Foundation [The fifth article in a five-part series on the NSF-NIH Ecology and Evolution of Infectious Diseases (EEID) Program]
24 Jul 2013
Cited Journal Article
CA Burge et al. Climate Change Influences on Marine Infectious Diseases: Implications for Management and Society. Annual Review of Marine Science. 2013; [Epub 2013 Jun 27]. DOI: 10.1146/annurev-marine-010213-135029
OTHER WILDLIFE HEALTH RELATED NEWS
- Biologists remove disease-spreading invasive frogs from Golden Gate Park
- Government Declares Mass Dolphin Die-Off an Unusual Mortality Event
- Need for wildlife forensic centre at Mafsu, demand students [India]
- Thousands of Dead Eels Wash Ashore in China [China - Map It
] - Plague Infected Squirrel Prompts Closure Of Three Angeles National Forest Campgrounds [Los Angeles Co., California, USA - Map It ]
- Missouri deer breeders worry the state is trying to force them out of business [Chronic Wasting Disease][Missouri, USA]
- Toxic algae alert issued for Dorena Lake [Lane Co., Oregon, USA]
- N.C. receives grant to combat deadly bat disease [North Carolina, USA]
- White-nose syndrome decimating bats
- White Nose Syndrome at Mammoth Cave [Kentucky, USA - View map for location of WNS reported in the news since 2008 ]
- White nose syndrome decimates bat population [Canada]
One Health News Corner
- Experts: H7N9 Virus Still Cause For Concern
- Scientific collaboration in war against disease pandemic
- New Tick-Borne Disease Waits in the Woods [Scientific American]
- Does the Dangerous New Middle East Coronavirus Have an African Origin?
- Hunting pushing central African forests toward ecological collapse: Loss of elephants, gorillas and other species threatens long-term persistence of forests
- Climate to wipe out Iberian lynx
Huh?! That's Interesting!
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