Anatomical site of pheromone accumulation and temporal pattern of pheromone emission in the ambrosia beetle Megaplatypus mutatus

AbstractMegaplatypus mutatus (= Platypus mutatus) (Chapuis), an ambrosia beetle (Coleoptera: Platypodidae) native to South America, is a forest pest that attacks live standing trees, affecting commercial poplar and other broadleaf plantations. Traditionally, single-chambered emergence traps have been used to collect live beetles for field and laboratory studies. However, the lack of separation in these chambers results in antagonistic interactions between individuals. Wounded M. mutatus are incapable of successful reproduction and are of little value in physiological and behavioral experiments. We introduce a new, multiple-chambered trap that isolates individual insects until collection, thus increasing the number of uninjured and fully functional insects available for physiological and behavioral experiments.

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3-Pentanol: A New Attractant Present in Volatile Emissions from the Ambrosia Beetle, Megaplatypus mutatus

Journal of Chemical Ecology ◽

10.1007/s10886-008-9547-7 ◽

2008 ◽

Vol 34 (11) ◽

pp. 1446-1451 ◽

Cited By ~ 16

Author(s):

Pablo Gatti Liguori ◽

Eduardo Zerba ◽

Raul A. Alzogaray ◽

Paola Gonzalez Audino

Keyword(s):

Ambrosia Beetle ◽

Volatile Emissions ◽

Megaplatypus Mutatus

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Metachromatic Leukodystrophy: spatial and temporal pattern of MRI changes and their association with motor deterioration

Neuropediatrics ◽

10.1055/s-0030-1265513 ◽

2010 ◽

Vol 41 (02) ◽

Author(s):

S Gröschel ◽

C Kehrer ◽

C i Dali ◽

M Wilke ◽

W Grodd ◽

...

Keyword(s):

Temporal Pattern ◽

Metachromatic Leukodystrophy ◽

Mri Changes

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Nonlinear Pattern Analysis of Ventricular Premature Beats by Mutual Information

Methods of Information in Medicine ◽

10.1055/s-0038-1636872 ◽

1997 ◽

Vol 36 (04/05) ◽

pp. 257-260 ◽

Cited By ~ 1

Author(s):

H. Saitoh ◽

T. Yokoshima ◽

H. Kishida ◽

H. Hayakawa ◽

R. J. Cohen ◽

...

Keyword(s):

Mutual Information ◽

Temporal Pattern ◽

Pattern Analysis ◽

Autonomic Activity ◽

Correlation Measure ◽

Ventricular Premature Beats ◽

Risk Of Mortality ◽

Premature Beats ◽

Information Values ◽

Nonlinear Pattern

Abstract:The frequency of ventricular premature beats (VPBs) has been related to the risk of mortality. However, little is known about the temporal pattern of occurrence of VPBs and its relationship to autonomic activity. Hence, we applied a general correlation measure, mutual information, to quantify how VPBs are generated over time. We also used mutual information to determine the correlation between VPB production and heart rate in order to evaluate effects of autonomic activity on VPB production. We examined twenty subjects with more than 3000 VPBs/day and simulated ran-( dom time series of VPB occurrence. We found that mutual information values could be used to characterize quantitatively the temporal patterns of VPB generation. Our data suggest that VPB production is not random and VPBs generated with a higher value of mutual information may be more greatly affected by autonomic activity.

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