Flash communication pattern analysis of fireflies based on computer vision

Previous methods for detecting the flashing behavior of fireflies were using either a photomultiplier tube, a stopwatch, or videography. Limitations and problems are associated with these methods, i.e., errors in data collection and analysis, and it is time-consuming. This study aims to applied a computer vision approach to reduce the time of data collection and analysis as compared to the videography methods by illuminance calculation, time of flash occurrence, and optimize the position coordinate automatically and tracking each firefly individually. The Validation of the approach was performed by comparing the flashing data of male fireflies, Sclerotia aquatilis that was obtained from the analysis of the behavioral video. The pulse duration, flash interval, and flash patterns of S. aquatilis were similar to a reference study. The accuracy ratio of the tracking algorithm for tracking multiple fireflies was 0.94. The time consumption required to analyze the video decreased up to 96.82% and 76.91% when compared with videography and the stopwatch method, respectively. Therefore, this program could be employed as an alternative technique for the study of fireflies flashing behavior

Aggregations of unrelated Apis florea

International audienc

Aggregations of unrelated Apis florea colonies

Intensive surveys of an area of woodland in Phitsanulok province, Thailand, revealed 15 colonies of Apis florea. The colonies had a highly aggregated spatial distribution (Standardized Morisita's Index of Dispersion = 0.59). Microsatellite analysis based on 5 loci showed that no colonies were related as mother-daughter, suggesting that unrelated colonies tend to nest near existing colonies

Moving home: nest-site selection in the Red Dwarf honeybee ('Apis florea')

The Red Dwarf honeybee ('Apis florea') is one of two basal species in the genus 'Apis. A. florea' differs from the well-studied Western Hive bee ('Apis mellifera') in that it nests in the open rather than in cavities. This fundamental difference in nesting biology is likely to have implications for nest-site selection, the process by which a reproductive swarm selects a new site to live in. In 'A. mellifera', workers show a series of characteristic behaviors that allow the swarm to select the best nest site possible. Here, we describe the behavior of individual 'A. florea' workers during the process of nest-site selection and show that it differs from that seen in 'A. mellifera'. We analyzed a total of 1,459 waggle dances performed by 197 scouts in five separate swarms. Our results suggest that two fundamental aspects of the behavior of 'A. mellifera' scouts -the process of dance decay and the process of repeated nest site evaluation- do not occur in 'A. florea'. We also found that the piping signal used by 'A. mellifera' scouts to signal that a quorum has been reached at the chosen site, is performed by both dancing and non-dancing bees in 'A. florea'. Thus, the piping signal appears to serve a different purpose in 'A. florea'. Our results illustrate how differences in nesting biology affect the behavior of individual bees during the nest-site selection process

A scientific note on the mating frequency of Apis dorsata

(without abstract

Worker policing in the bee Apis florea

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