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9 results for “Tetragonisca angustula”
Tetragonisca angustula
<p>The Tetragonisca angustula is a bee native to Brazil with geographic distribution throughout the Brazilian territory, and your indigenous name is Jataí. The dataset consists of videos of the entry of several colonies for multiple bee tracking identified as XXXY-Y, where XXX identifies the hive location and Y-Y the recording interval. We identified images taken from the videos for bee detectors as the complement of the previous XXXY-YZ…, where Z… is an id associated with each image. Localization of the beehives:</p> <ul> <li>Beehive 001 (001 - Sample): Horto Parque dos Contos: Ouro Preto, MG, Brazil. Geographical coordinates obtained from Google (-20.381099, -43.506333). Natural beehive in a urban environment.</li> <li>Beehive 002 (002 - Sample): Sítio São Lázaro: Santa Rita de Ouro Preto, MG, Brazil. Geographical coordinates obtained from Google: (-20.502591, -43.520515). Natural beehive in a rural environment.</li> <li>Beehive 003 (003 - Sample): Sítio São Lázaro: Santa Rita de Ouro Preto, MG, Brazil. Geographical coordinates obtained from Google: (-20.502507, -43.520330). Natural beehive in a rural environment.</li> <li>Beehive 004 (004 - Sample): Sítio Bela Vista: Cachoeira do Campo, MG, Brazil. Geographical coordinates obtained from Google: (-20.345266, -43.608529). Artificial beehive in a rural environment.</li> <li>Beehive 005 (005 - Sample): Sítio Bela Vista: Cachoeira do Campo, MG, Brazil. Geographical coordinates obtained from Google: (-20.345640, -43.608437). Natural beehive in a rural environment.</li> <li>Beehive 006 (006 - Sample): BeeKeep CS: https://beekeep.pcs.usp.br. BeeKeep CS artificial beehive.</li> </ul> <p>Detailed information in <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.dib.2024.110659" target="_blank" rel="noreferrer noopener"><span><span>https://doi.org/10.1016/j.dib.2024.11065</span></span></a>.</p>
Figure 3 in Observations on the urban ecology of the Neotropical stingless bee Tetragonisca angustula (Hymenoptera: Apidae: Meliponini)
Figure 3. Daily foraging activity of Tetragonisca angustula (Latreille) in a forested area (Reserva San Sebastián [RSS]) near the city of Medellín, Colombia, and at four study sites within Medellín: Universidad Nacional (UNAL), Universidad de Antioquia (UdeA), Cerro el Volador (CV), and Jardín Botánico 'Joaquín Antonio Uribe' (JBJAU).
Figures 1–2 in Observations on the urban ecology of the Neotropical stingless bee Tetragonisca angustula (Hymenoptera: Apidae: Meliponini)
Figures 1–2. Nest of Tetragonisca angustula (Latreille) in the city of Medellín, Colombia. 1. Unmarked nest. 2. Marked nest with black ring to make the nest more visible to people.
Data from: Age-based changes in kairomone response mediate task partitioning in stingless bee soldiers (Tetragonisca angustula)
<p>Collective defense is one of the most ubiquitous behaviors performed by social groups. Because of its importance, complex societies may engage a set of defensive specialists, with physical and/or neurological attributes tuned for defense against specific invaders. These strategies must be balanced, however, with the need to flexibly respond to different threat levels and sources. Insect societies rely heavily on olfaction for detecting and communicating in the context of defense. We therefore asked whether threat detection via olfaction is specialized towards invader-specific cues and how this may be integrated into defense task specialization. Colonies of the stingless bee, <em>Tetragonisca angustula</em>, deploy a morphologically distinct sub-caste of larger-bodied workers (soldiers) for colony defense. These soldiers transition between two different guarding tasks as they age, progressing from guarding in a hovering position near the nest entrance to guarding in a standing position on the nest entrance tube. Hovering and standing guards intercept different types of invaders: primarily heterospecific versus conspecific, respectively. We asked whether hovering and standing guarding behaviors were modulated by differential sensitivity to invader-associated olfactory stimuli; then we compared their responses to these cues to those of smaller workers that perform predominantly non-defense tasks. We exposed bees under both field and lab conditions to citral, a kairomone produced by an obligate heterospecific nest robber, primarily intercepted by hovering guards. Consistent with their roles, hovering guards were more likely to move towards citral than were either standing guards or small-bodied bees within a Y-maze. We also presented guards at field nests with dummies of conspecific versus heterospecific invader types, varying whether they included citral odors. Standing guards were more responsive to conspecific intruder scenarios than hovering guards, but heterospecific response differed by presence of citral. Standing and hovering guards responded in similar proportions when citral was absent, but the addition of citral produced a marginally non-significant reduction in standing guard participation. Our results potentially demonstrate differentiated cue-specific responses that correspond to morphological task specialization and age polyethism in these eusocial societies.</p>
Data from: Changing of the guard: mixed specialization and flexibility in nest defense (Tetragonisca angustula)
Task allocation is a central challenge of collective behavior in a variety of group-living species, and this is particularly the case for the allocation of social insect workers for group defense. In social insects, both benefits and considerable costs are associated with the production of specialized soldiers. We asked whether colonies mitigate costs of production of specialized soldiers by simultaneously employing behavioral flexibility in non-specialist workers that can augment defense capabilities at short time scales. We studied colonies of the stingless bee Tetragonisca angustula, a species that has two discrete nest guarding tasks typically performed by majors: hovering guarding and standing guarding. Majors showed age polyethism across nest-guarding tasks, first hovering and then changing to the task of standing guarding after one week. Colonies were also able to reassign minors to guarding tasks when majors were experimentally removed. Replacement guards persisted in nest defense tasks until colonies produced enough majors to return to their initial state. Tetragonisca angustula colonies thus employed a coordinated set of specialization strategies in nest defense: morphologically specialized soldiers, age polyethism among soldiers within specific guarding tasks, and rapid flexible reallocation of non-specialists to guarding during soldier loss. This mixed strategy achieves the benefits of a highly specialized defensive force while maintaining the potential for rapid reinforcement when soldiers are lost or colonies face unexpectedly intense attack.
Data from: Organisation enhances collective vigilance in the hovering guards of Tetragonisca angustula bees
One benefit of group living is vigilance against predators. Previous studies have investigated the group size effect, where individual vigilance decreases as group size increases without reducing the overall ability of the group to detect predators. However, there has been comparatively little research on whether the positioning of individuals can improve the collective vigilance of the group. We studied the coordination of vigilance and its effect on predator detection in the eusocial bee Tetragonisca angustula. Nests are defended by hovering guards that detect and intercept intruders before they reach the nest entrance, in addition to those that stand upon it. We show that hovering guards are positioned non-randomly, with a strong tendency for equal numbers on both sides of the entrance. This organisation increases the collective vigilance of the guard group, as groups distributed in an even ratio, either side of the entrance, have a greater collective field of view than groups that deviate from an even ratio. Last, we use a bioassay to show that when guards are on both sides of the entrance, their ability to detect intruders before they reach the entrance increases. Overall, our results provide strong evidence that vigilance is coordinated, and that this improves nest defence. Whereas other group-living animals are often selfish in their individual vigilance behaviours, and face competing time constraints such as foraging, the altruistic nature of eusocial insect workers has likely facilitated the evolution of coordinated vigilance, as documented here in T. angustula.
Data from: Changing of the guard: mixed specialization and flexibility in nest defense (Tetragonisca angustula)
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Data from: Age-based changes in kairomone response mediate task partitioning in stingless bee soldiers (Tetragonisca angustula)
Open the record for dataset details and reuse information.
Data from: Organisation enhances collective vigilance in the hovering guards of Tetragonisca angustula bees
Open the record for dataset details and reuse information.
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