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348 results for “stingless bees”
Arena assay and gene expression of stingless bees
<p>The dataset includes behavioral data collected from arena experiments with workers of stingless bee species <em>Scaptotrigona postica</em>, <em>Frieseomelitta varia</em>, and <em>Melipona quadrifasciata</em>. Additionally, it contains gene expression data (CT values) for these species across different life stages and tissues.</p>
FIGURES 14 – 15 in A new stingless bee species of the genus Scaura (Hymenoptera, Apidae) from the Brazilian Atlantic forest, with notes on S. latitarsis (Friese)
FIGURES 14 – 15. Termite nest (Nasutitermes) used as nesting substrate by the stingless bee Scaura atlantica, sp. nov (14); scale bar = 50 mm. Detail of the entrance tube of the bee’s nest. Notice an older tube collapsed under the active one (15); scale bar = 15 mm.
FIGURES 7 – 12 in A new stingless bee species of the genus Scaura (Hymenoptera, Apidae) from the Brazilian Atlantic forest, with notes on S. latitarsis (Friese)
FIGURES 7 – 12. (7, 9, 11) Scaura latitarsis, worker (from Uberaba, Minas Gerais, except fig 9, material from Alpinópolis, Minas Gerais): base of antenna, in frontal view (7); hind leg, in outer view (9); apical portion of metasoma, in lateral view (11). (8, 10, 12) Scaura atlantica, sp. nov., worker (from Ilhéus, Bahia): base of antenna, in frontal view (8); hind leg, in outer view (10); apical portion of metasoma, in lateral view (12). For figs 7 – 8, scale bar = 0.3 mm; for figs 9 – 10, 1.0 mm; and for figs 11 – 12, 0.5 mm.
FIGURES 1 – 6 in A new stingless bee species of the genus Scaura (Hymenoptera, Apidae) from the Brazilian Atlantic forest, with notes on S. latitarsis (Friese)
FIGURES 1 – 6. (1, 3, 5) Scaura latitarsis, worker (from Uberaba, Minas Gerais): head, in frontal view (1) and detail of upper frons (3); upper portion of mesosoma, in lateral view (5). (2, 4, 6) Scaura atlantica, sp. nov., worker (from Ilhéus, Bahia): head, in frontal view (2) and detail of upper frons (4); upper portion of mesosoma, in lateral view (6). For figs 1 – 2, scale bar = 1.0 mm; for figs 3 – 4, 0.3 mm; and for figs 5 – 6, 1.0 mm.
Fig. 22 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Fig. 22. Photomicrographs of Proplebeia vetusta, sp. n., worker, paratype, AMNHDR141440. Scale = 1.0 mm.
Fig. 21 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Fig. 21. Photomicrograph of Proplebeia tantilla, sp. n., male, holotype, AMNHDR141439. Scale = 1.0 mm.
Fig. 20 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Fig. 20. Proplebeia tantilla, sp. n., holotype, male, AMNHDR141439, detail of pregenital sterna and genitalia, ventral view.
Figs. 15–19 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Figs. 15–19. Proplebeia tantilla, sp. n. 15–17. holotype, male, AMNHDR141439, head, forewing, and tibia and tarsus III. 18, 19. paratype, worker, same amber piece, fragments of tibia and tarsus III, detail of rastellum, and mandible, detail of denticles.
Figs. 8–10 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Figs. 8–10. Forewing, worker; 8. Proplebeia vetusta, sp.n., holotype, specimen, AMNHDR14854; 9. Proplebeia dominicana, specimen AMNHDR141175; 10. Proplebeia tantilla, sp. n., paratype, specimen AMNHDR14911. Scale = 1.0 mm.
Figs. 6, 7 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Figs. 6, 7. Proplebeia dominicana, genitalia of male, posterior view and profile, specimen AMNHDR14954; S5–S7 = 5th–7th metasomal sterna, respectively. Scale = 1.0 mm.
Figs. 3, 4. Proplebeia dominicana, tibia III. 3 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Figs. 3, 4. Proplebeia dominicana, tibia III. 3. outer surface, specimen AMNHDR141179; 4. inner surface, detail of the keirotrichiate area and rastellum, specimen AMNHDR141175. Scale = 1.0 mm.
Figs. 11–13 in The Extinct Fauna of Stingless Bees (Hymenoptera: Apidae: Meliponini) in Dominican Amber: Two New Species and Redescription of the Male of Proplebeia dominicana (Wille and Chandler)
Figs. 11–13. Proplebeia vetusta, sp. n., holotype, AMNHDR141481, head, detail of mandible, tibia and tarsus III, detail of penicillum and rastellum. Minor scale bar = 1.0 mm (fig. 11), large scale bar = 1.0 mm (figs. 12–13).
Data from: Stingless bee foragers experience more thermally stressful microclimates but have wider thermal tolerance breadths than other worker subcastes
<p>The current state of anthropogenic climate change is of particular concern for insects, especially in the tropics where the effects are predicted to be the most deleterious. Researching climatic tolerance in social insects is challenging because adaptations can exist at both an individual level and a societal level. However, these studies are important because social insects comprise a tremendous portion of the planet's animal biomass, biodiversity, and include many important pollinators. Considering how individual physiologies construct group-level adaptations can improve the accuracy of climate change impact assessments for a variety of social species. <em>Tetragonisca angustula</em> is a neotropical stingless bee species known to exhibit particularly high worker subcaste specialization in the form of a morphologically distinct soldier caste, a trait most commonly found and studied in ants and termites. We used this model species to investigate 1) whether age- and size-differentiated task groups differ in thermal tolerance, 2) which worker subcastes operate closest to their thermal limits, and 3) the extent to which behavioral thermoregulation via shifting active foraging times can offset thermal stress in this species. We measured the thermal tolerance (CT<sub>max</sub> and CT<sub>min</sub>) of smaller-bodied foragers, and two soldier sub-castes (hovering guards and standing guards) in <em>T. angustula</em>. Despite the difference in body size between the foragers and guards, no differences in the upper or lower thermal limits were observed. However, the average thermal tolerance breadth of foragers was significantly larger than that of guards, indicating that soldiers at the nest entrance are more thermally specialized than foragers. Temperatures at foraging sites were more variable than at nest entrances, which caused warming tolerance to be significantly lower among small-bodied foragers as compared to either hovering guards or standing guards. The magnitude of warming tolerances indicated a low risk of imminent climate change impacts in this environment, but our results suggest that as temperatures increase, foragers are likely to meet their upper thermal limits before other worker subcastes. Foragers may shift the times they are active as a form of thermoregulation which could selectively impact pollination rates for plants leading to repercussions on agriculture and ecosystem functioning. This work establishes novel approaches to predicting climatic change risk in heterogeneous cooperative societies.</p>
Fig. 3 in Nest architectures of myrmecophilous stingless bees, Trigona sp. cfr. cilipes and Paratrigona sp., from Peruvian Amazon (Hymenoptera: Apidae, Apinae, Meliponini)
Fig. 3 – Sticky resin deposits between the outer layers of the Dolichoderus quadridenticulatus nest.
Figure 1 in Daily activity rhythm of the African stingless bee Hypotrigona gribodoi (Hymenoptera: Meliponini) in the dry season, with notes on nest structure and colony composition
Figure 1. Numbers of bees departing from the nest (black) and returning throughout daylight hours. Returning bees are separated into those without (white) and with (gray) loaded pollen baskets
Figures 64–66 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 64–66. Worker of Scaptotrigona ochrotricha (Buysson). 64. Lateral habitus. 65. Dorsal habitus. 66. Facial view.
Figures 67–68 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 67–68. Worker of Scaptotrigona ochrotricha (Buysson). 67. Dorsal view of head and mesosoma. 68. Dorsal view of metasoma.
Figures 44–46 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 44–46. Worker of Scaptotrigona tatacoensis, new species. 44. Lateral habitus. 45. Dorsal habitus. 46. Facial view.
Figures 32–33 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 32–33. Worker of Scaptotrigona magdalenae, new species, light morph. 32. Dorsal view of vertex and mesosoma. 33. Prolateral surface of metatibia, metatarsus, and metapretarsus.
Figures 18–20 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 18–20. Worker of Scaptotrigona kuperi, new species. 18. Lateral habitus. 19. Dorsal habitus. 20. Facial view.
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OpenNeuro
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