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Road facilitation of trematode infections in snails of northern Alaska.

Mark C Urban1

  • 1Yale University, School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511-2104, USA. mark.urban@yale.edu

Conservation Biology : the Journal of the Society for Conservation Biology
|August 23, 2006
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Summary
This summary is machine-generated.

Roads in Alaska increase trematode infections and snail density in nearby ponds. This suggests roads may facilitate disease spread in northern ecosystems, impacting wildlife health.

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Area of Science:

  • Ecology
  • Wildlife Health
  • Disease Ecology

Background:

  • Roads can disrupt ecosystems by altering environmental conditions and facilitating the spread of disease agents and hosts.
  • Understanding the impact of roads on wildlife health is crucial for conserving biodiversity in sensitive northern ecosystems.

Purpose of the Study:

  • To investigate the relationship between proximity to a wilderness road (Dalton Highway) and trematode infections in snails.
  • To assess how environmental variables and snail density are affected by distance from the road.

Main Methods:

  • Field surveys were conducted at ponds at varying distances from the Dalton Highway in Alaska.
  • Trematode infection prevalence, snail density, and environmental factors (calcium, vegetation, temperature, pond size, community structure) were measured.

Main Results:

  • Snail density and trematode infection prevalence were higher in ponds closer to the highway.
  • Calcium concentration and vegetation density decreased with increasing distance from the road.
  • Neither calcium nor vegetation density were directly correlated with snail density or trematode presence.

Conclusions:

  • Proximity to the Dalton Highway is associated with increased snail density and trematode infections.
  • Factors associated with the road, potentially including increased host/pathogen introduction or altered environmental conditions, may drive these patterns.
  • Roads can act as significant drivers of disease transmission dynamics in arctic and subarctic ecosystems.