4 Works

Data from: Flower signal variability overwhelms receptor-noise and requires plastic color learning in bees

Jair E Garcia, Mani Shrestha & Adrian G. Dyer
Color discrimination thresholds proposed by receptor-noise type models are frequently used in animal vision studies to predict a precise limit on the capacity of an animal to discriminate between stimuli. Honeybees and bumblebees are two closely related hymenopteran species for which precise data on photoreceptor sensitivities and receptor noise exist, enabling accurate testing on how their vision conforms to model predictions. Color vision has been proven in these species, and they are known to predominantly...

Data from: Matching symbiotic associations of an endangered orchid to habitat to improve conservation outcomes

Noushka Reiter, Ann C. Lawrie & Celeste C. Linde
Background and Aims: An understanding of mycorrhizal variation, orchid seed germination temperature and the effect of co-occurring plant species could be critical for optimising conservation translocation of endangered plants with specialised mycorrhizal associations. Methods: Focussing on the orchid Thelymitra epipactoides we isolated mycorrhizal fungi from ten plants within each of three sites; Shallow Sands Woodland (SSW), Damp Heathland (DH) and Coastal Heathland Scrub (CHS). Twenty-seven fungal isolates were tested for symbiotic germination under three temperature...

Data from: Reproductive isolation in alpine gingers: how do co-existing Roscoea (R. purpurea and R. tumjensis) conserve species integrity?

Babu Ram Paudel, Martin Burd, Mani Shrestha, Adrian G. Dyer, Qingjun Li & Qing-Jun Li
Multiple barriers may contribute to reproductive isolation between closely related species. Understanding the relative strength of these barriers can illuminate the ecological factors that currently maintain species integrity and how these factors originally promoted speciation. Two Himalayan alpine gingers, Roscoea purpurea and R. tumjensis, occur sympatrically in central Nepal and have such similar morphology that it is not clear whether or how they maintain a distinct identity. Our quantitative measurements of the components of reproductive...

Data from: Numerical ordering of zero in honey bees

Scarlett R. Howard, Aurore Avarguès-Weber, Jair E. Garcia, Andrew D. Greentree & Adrian G. Dyer
Some vertebrates demonstrate complex numerosity concepts—including addition, sequential ordering of numbers, or even the concept of zero—but whether an insect can develop an understanding for such concepts remains unknown. We trained individual honey bees to the numerical concepts of “greater than” or “less than” using stimuli containing one to six elemental features. Bees could subsequently extrapolate the concept of less than to order zero numerosity at the lower end of the numerical continuum. Bees demonstrated...

Registration Year

  • 2018
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  • Dataset
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Affiliations

  • RMIT University
    4
  • Monash University
    2
  • Yunnan University
    1
  • Royal Botanic Gardens
    1
  • Australian National University
    1
  • French National Centre for Scientific Research
    1
  • Tribhuvan University
    1