lowering soil moisture eco global survival game

The aims of this study were to determine the settlement success of sea lice in current speeds that are frequently encountered in net-pens. A Novel Study on Sea Lice ( Lepeophtheirus salmonis ) Settlement Success During Atlantic Salmon ( Salmo salar ) EncountersĪbstract: It is hypothesized that current velocity influences the settlement success of sea lice ( Lepeophtheirus salmonis ) on its preferred host, Atlantic salmon ( Salmo salar ), however this has not been demonstrated experimentally.This study uses a combination of techniques (i.e., live trapping, track plates, and foraging trays) that capture different aspects of small mammal population dynamics and behavior to (1) assess small mammal foraging and population sizes in forest stands with varied structural attributes and (2) to compare the efficacy and correlation between these different sampling techniques to determine their ability to predict tick burdens. No study has examined the mechanistic links among forest stand attributes that result from timber harvesting histories, small mammal behavior and population sizes, and blacklegged tick densities. Altered small mammal foraging and/or abundance could affect tick-host encounter rates, thereby affecting small mammals’ tick burdens and, consequently, tick densities in the environment. This change potentially alters the abundance or behavior of these small mammals directly, or indirectly by changing predator activity and the resulting threat, or perceived threat, of predation. Timber harvesting modifies wildlife habitat through changes in overstory cover and understory vegetation. One potential mechanism driving this relationship may depend on the small mammals (e.g., white-footed mouse, Peromyscus leucopus eastern chipmunk, Tamias striatus, etc.) that serve as hosts for the blacklegged tick and B.

Our previous work has shown that forest structural characteristics that result from timber harvesting can reduce densities of nymphal blacklegged ticks, Ixodes scapularis, the vector of the Lyme disease bacterium, Borrelia burgdorferi. The Effects of Timber Harvesting on Small Mammal Abundance and Foraging Behavior with Implications for Tick DensitiesĪbstract: Timber harvesting is a property-scale forest management practice that involves the cutting and removal of trees.

Lowering soil moisture eco global survival game