A novel method for estimating pathogen presence, prevalence, load, and dynamics at multiple scales
FORT staff with the North American Bat Monitoring Program (NABat) co-authored a publication in Scientific Reports on a new modeling framework for pathogen monitoring that can help practitioners identify and manage wildlife populations during the early infectious stages of disease spread.
When pathogens invade a new wildlife population, measures of pathogen abundance may be so low that monitoring methods inconsistently detect pathogen presence. Scientists often exclude such detections from predictions of disease prevalence and spread. However, monitoring frameworks that can include and account for inconsistent detections could be more accurate in predicting pathogen arrival, early pathogen load, and early pathogen prevalence, allowing conservation practitioners to better manage pathogen spread.
In this study, researchers developed a probabilistic modeling framework for analyzing environmental DNA (eDNA) surveys of Pd (Pseudogymnoascus destructans; the fungal vector of white nose-syndrome) and used it to understand the spread of this pathogen among bat hibernacula — caves, mines, tunnels or other places where bats overwinter — from 2012–2017.
The modeling framework accommodates early and imperfect detections to provide invasion histories for each monitored hibernacula with uncertainty. It is applicable to other monitoring programs focused on the spread of disease or invasive species.
Related
North American Bat Monitoring Program (NABat)
What is White-nose Syndrome? What is White-nose Syndrome?
White-nose syndrome is an emergent disease of hibernating bats that has spread from the northeastern to the central United States at an alarming rate. Since the winter of 2007-2008, millions of insect-eating bats in at least 40 states and eight Canadian provinces have died from this devastating disease. The disease is named for the white fungus, Pseudogymnoascus destructans, that infects skin of...
What species of bats are affected by White-nose Syndrome? What species of bats are affected by White-nose Syndrome?
White-nose Syndrome mostly affects hibernating bats. More than half of the 47 bat species living in the United States and Canada hibernate to survive the winter. Twelve bat species, including two endangered species and one threatened species, have been confirmed with white-nose syndrome in North America. The causative fungus, Pseudogymnoascus destructans ( Pd), has been found on an additional six...
Why are bats important? Why are bats important?
By eating insects, bats save U.S. agriculture billions of dollars per year in pest control. Some studies have estimated that service to be worth over 3.7 billion dollars per year, and possibly as much as 53 billion dollars per year. This value does not, however, take into account the volume of insects eaten by bats in forest ecosystems and the degree to which that benefits industries like lumber...
Where do bats live? Where do bats live?
Bats can be found in almost all parts of the world and in most regions of the United States. In general, bats seek out a variety of daytime retreats such as caves, rock crevices, old buildings, bridges, mines, and trees. Different species require different roost sites. Some species, such as the Mexican free-tailed and gray bats live in large colonies in caves. A few solitary species, such as the...
Related
North American Bat Monitoring Program (NABat)
What is White-nose Syndrome? What is White-nose Syndrome?
White-nose syndrome is an emergent disease of hibernating bats that has spread from the northeastern to the central United States at an alarming rate. Since the winter of 2007-2008, millions of insect-eating bats in at least 40 states and eight Canadian provinces have died from this devastating disease. The disease is named for the white fungus, Pseudogymnoascus destructans, that infects skin of...
What species of bats are affected by White-nose Syndrome? What species of bats are affected by White-nose Syndrome?
White-nose Syndrome mostly affects hibernating bats. More than half of the 47 bat species living in the United States and Canada hibernate to survive the winter. Twelve bat species, including two endangered species and one threatened species, have been confirmed with white-nose syndrome in North America. The causative fungus, Pseudogymnoascus destructans ( Pd), has been found on an additional six...
Why are bats important? Why are bats important?
By eating insects, bats save U.S. agriculture billions of dollars per year in pest control. Some studies have estimated that service to be worth over 3.7 billion dollars per year, and possibly as much as 53 billion dollars per year. This value does not, however, take into account the volume of insects eaten by bats in forest ecosystems and the degree to which that benefits industries like lumber...
Where do bats live? Where do bats live?
Bats can be found in almost all parts of the world and in most regions of the United States. In general, bats seek out a variety of daytime retreats such as caves, rock crevices, old buildings, bridges, mines, and trees. Different species require different roost sites. Some species, such as the Mexican free-tailed and gray bats live in large colonies in caves. A few solitary species, such as the...