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Host-Seeking Behavior in the Bed Bug, Cimex lectularius.

Suchy JT, Lewis VR - Insects (2011)

Bottom Line: This has prevented a more complete understanding of the insect's host-seeking process.This work describes a novel method for studying host-seeking behavior, using various movement parameters, in a time-lapse photography system.The time-lapse photography system uses a large, artificial environment and could also be employed to study other aspects of the insect's behavioral patterns.

View Article: PubMed Central - PubMed

Affiliation: Department of Public Health, University of California, Berkeley, CA 94720, USA. jsuchy@berkeley.edu.

ABSTRACT
The reemergence of the bed bug, Cimex lectularius Linnaeus, has recently spawned a frenzy of public, media, and academic attention. In response to the growing rate of infestation, considerable work has been focused on identifying the various host cues utilized by the bed bug in search of a meal. Most of these behavioral studies examine movement within a confined environment, such as a Petri dish. This has prevented a more complete understanding of the insect's host-seeking process. This work describes a novel method for studying host-seeking behavior, using various movement parameters, in a time-lapse photography system. With the use of human breath as an attractant, we qualitatively and quantitatively assessed how bed bugs navigate their environment between its harborage and the host. Levels of behavioral activity varied dramatically between bed bugs in the presence and absence of host odor. Bed bugs demonstrated not simply activation, but attraction to the chemical components of breath. Localized, stop-start host-seeking behavior or alternating periods of movement and pause were observed among bed bugs placed in the environment void of human breath, while those exposed to human breath demonstrated long range, stop-start host-seeking behavior. A more comprehensive understanding of bed bug host-seeking can lead to the development of traps and monitors that account for unique subtleties in their behavior. The time-lapse photography system uses a large, artificial environment and could also be employed to study other aspects of the insect's behavioral patterns.

No MeSH data available.


Related in: MedlinePlus

Sample walking-path of one bed bug, within the experimental arena (91.44 × 91.44 cm), demonstrating characteristic host-seeking behavior in the (a) presence and (b) absence of host breath. Tracks began (white cross) at the harborage in the center of the arena. In both instances, the breathing tube (black dot) was located in the upper left corner of the arena. The vertical and horizontal axes are measured in centimeters.
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f2-insects-02-00022: Sample walking-path of one bed bug, within the experimental arena (91.44 × 91.44 cm), demonstrating characteristic host-seeking behavior in the (a) presence and (b) absence of host breath. Tracks began (white cross) at the harborage in the center of the arena. In both instances, the breathing tube (black dot) was located in the upper left corner of the arena. The vertical and horizontal axes are measured in centimeters.

Mentions: When the coordinates were connected in sequence, a series of walking-paths were produced, describing the bed bugs' movement. Walking-paths could best be described as meandering movement with frequent changes in direction. For example, (Figure 2) demonstrates the difference in walking-paths between bed bugs in the presence and absence of olfactory cues. Unapparent from these walking-paths were the short but frequent periods of motionlessness that interrupted longer periods of movement. While a majority moved away from the harborage area during the experiments, some bugs only moved inside of the harborage area, while others didn't move at all.


Host-Seeking Behavior in the Bed Bug, Cimex lectularius.

Suchy JT, Lewis VR - Insects (2011)

Sample walking-path of one bed bug, within the experimental arena (91.44 × 91.44 cm), demonstrating characteristic host-seeking behavior in the (a) presence and (b) absence of host breath. Tracks began (white cross) at the harborage in the center of the arena. In both instances, the breathing tube (black dot) was located in the upper left corner of the arena. The vertical and horizontal axes are measured in centimeters.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4553421&req=5

f2-insects-02-00022: Sample walking-path of one bed bug, within the experimental arena (91.44 × 91.44 cm), demonstrating characteristic host-seeking behavior in the (a) presence and (b) absence of host breath. Tracks began (white cross) at the harborage in the center of the arena. In both instances, the breathing tube (black dot) was located in the upper left corner of the arena. The vertical and horizontal axes are measured in centimeters.
Mentions: When the coordinates were connected in sequence, a series of walking-paths were produced, describing the bed bugs' movement. Walking-paths could best be described as meandering movement with frequent changes in direction. For example, (Figure 2) demonstrates the difference in walking-paths between bed bugs in the presence and absence of olfactory cues. Unapparent from these walking-paths were the short but frequent periods of motionlessness that interrupted longer periods of movement. While a majority moved away from the harborage area during the experiments, some bugs only moved inside of the harborage area, while others didn't move at all.

Bottom Line: This has prevented a more complete understanding of the insect's host-seeking process.This work describes a novel method for studying host-seeking behavior, using various movement parameters, in a time-lapse photography system.The time-lapse photography system uses a large, artificial environment and could also be employed to study other aspects of the insect's behavioral patterns.

View Article: PubMed Central - PubMed

Affiliation: Department of Public Health, University of California, Berkeley, CA 94720, USA. jsuchy@berkeley.edu.

ABSTRACT
The reemergence of the bed bug, Cimex lectularius Linnaeus, has recently spawned a frenzy of public, media, and academic attention. In response to the growing rate of infestation, considerable work has been focused on identifying the various host cues utilized by the bed bug in search of a meal. Most of these behavioral studies examine movement within a confined environment, such as a Petri dish. This has prevented a more complete understanding of the insect's host-seeking process. This work describes a novel method for studying host-seeking behavior, using various movement parameters, in a time-lapse photography system. With the use of human breath as an attractant, we qualitatively and quantitatively assessed how bed bugs navigate their environment between its harborage and the host. Levels of behavioral activity varied dramatically between bed bugs in the presence and absence of host odor. Bed bugs demonstrated not simply activation, but attraction to the chemical components of breath. Localized, stop-start host-seeking behavior or alternating periods of movement and pause were observed among bed bugs placed in the environment void of human breath, while those exposed to human breath demonstrated long range, stop-start host-seeking behavior. A more comprehensive understanding of bed bug host-seeking can lead to the development of traps and monitors that account for unique subtleties in their behavior. The time-lapse photography system uses a large, artificial environment and could also be employed to study other aspects of the insect's behavioral patterns.

No MeSH data available.


Related in: MedlinePlus