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TOBIAS HAYASHI

  • Science
    • Why a PhD on greenhoods?
    • The Swan Greenhood and The Gnat
    • Solving the sexual chemistry
    • Blog posts
  • Photography
    • Prints
    • Albatross - Photoessay
    • Orchid - Intro
    • Flora
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One of first species I worked on during my PhD, Pterostylis longifolia with Mycomya sp. fungus gnat pollinator.

The end of the PhD journey

December 15, 2022

It was over five and a half years ago when I first sat down at my PhD desk to begin my journey to uncover the secrets of Pterostylis pollination. A lot has changed since then - we moved buildings at uni, I spent years in the field chasing gnats and in the lab working out chemistry, I published two papers on my research, I moved to Arnhem Land and moved back again, I started working in the public service and I submitted my PhD thesis.

Today, at least symbolically, I capped off that journey as I graduated from my PhD at the ANU.

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In greenhood PhD Tags PhD, graduation, science, pollination, pterostylis
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A visual tour of WA orchids

September 22, 2018

It was a source of great frustration to me that fieldwork in eastern Australia dictated that I leave Western Australia toward the end of August. However, late August in Perth is just about when things start to heat up on the wildflower front and so again, like last year, I will miss the best of the Western Australian Wildflower Experience. 

Still, there are a few things to be seen in the winter months. I am very grateful to Ross and Carolyn Jones, who took me under their wing and showed me some of their orchid spots within a days drive of Perth. Not only did we see many beautiful orchids, I got to experience some of the countryside that I otherwise would not have seen.

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In orchids Tags orchid, Western Australia, caladenia, diuris, pterostylis, pheladenia, native orchids, macro photography, canon 100mm macro, Zeiss 100mm
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Dipodium hamiltonianum, the Yellow Hyacinth Orchid is an striking and uncommon orchid with a disjunct distribution from south-east Queensland to Victoria. 

Dipodium interaneum, the Yellow Hyacinth Orchid is an striking and uncommon orchid with a disjunct distribution from south-east Queensland to Victoria. 

How long do orchids live?

June 4, 2018

The short answer, I think, is that no one knows, but that wouldn't make an interesting blog post.

Now, to the long answer...

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In orchids Tags dipodium hamiltonianum, dipodium, how long do orchids live?, orchid, longevity, terrestrial orchids, pterostylis
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A pair of bird orchids backlit by the setting sun [Pterostylis barbata].

A pair of bird orchids backlit by the setting sun [Pterostylis barbata].

Fieldwork: a visual tour of WA greenhoods

September 5, 2017

Ali and I are just back from a month-long field trip to the Perth region, Ali having come along to help out as a field assistant. What a lovely place to spend the start of spring! What's more, we've got back to Canberra and its still winter, so its like we'll have two springs...

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In greenhood PhD, orchids Tags pterostylis, pterostylis barbata, pterostylis sp. crinkled leaf, pterostylis sargentii, pterostylis recurva, frog orchid, bird orchid, jug orchid, snail orchid, Perth hills, perth, Brockton highway nr
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Pterostylis nutans with its likely pollinator, a fungus gnat of some sort.

Pterostylis nutans with its likely pollinator, a fungus gnat of some sort.

My PhD will be on...

May 7, 2017

In my last post I wrote about the first month of my PhD experience, about getting all the paperwork in order, about the enormity of planning for the next four years. So what am I actually studying?

In short, orchids and fungus gnats! Yep, fungus gnats. Let me explain.

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In greenhood PhD, orchids, flowers Tags orchid, pterostylis, greenhood, pterostylis nutans, PhDlife
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Latest Instragrams

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The view from the kitchen window this morning. Nature photography is a little different in 2020!
#smoke #fires #climatechange #canberra
The view from the kitchen window this morning. Nature photography is a little different in 2020! #smoke #fires #climatechange #canberra
Those who’ve seen Rufous Bristlebirds know that they’re simply the best. Such characters.
Those who’ve seen Rufous Bristlebirds know that they’re simply the best. Such characters.
I was recently asked to provide images of Red-kneed Dotterels for a sign at Jerrabomberra, and I had to go off digging in my old hard drives from way back in 2011. I’d forgotten that I’d spent a magical afternoon at Calperum Station with
I was recently asked to provide images of Red-kneed Dotterels for a sign at Jerrabomberra, and I had to go off digging in my old hard drives from way back in 2011. I’d forgotten that I’d spent a magical afternoon at Calperum Station with Red-kneed Dotterels coming almost within touching distance in beautiful sunset light. At the time I was out with @hoops.daniel helping him catch dragons near Renmark in South Australia for his PhD. . . #redkneeddotterel #southaustralia #australianbirds #ausgeo #canonaustralia #plover #birdsofinstagram #birdphotography #bird_brilliance
The lowly greenhood is quite an incredible orchid. It grows in central northern Victoria and flowers in November-December at a time when most other orchids in the area have died off for the season. 
It grows on soil which is baked hard by the hot sun
The lowly greenhood is quite an incredible orchid. It grows in central northern Victoria and flowers in November-December at a time when most other orchids in the area have died off for the season. It grows on soil which is baked hard by the hot sun and seems an inhospitable place for a delicate little orchid to be growing. Plus, it is rare and just looks damn cool! . . #australiannativeorchids #australiannativeplants #pterostylis #pterostylisdespectans #summer #orchids #ausgeo #canonaus #macro_secrets #zeiss100mmf2
The Campbell Albatross is the celebrity of seabird world. Well dressed, perfectly drawn eyeliner, audacious lipstick. Always ready for a night out on the ocean. 
#noeyelinerneeded #iwokeuplikethis #seabirdcelebrity #albatross #campbellalbatross #wild
The Campbell Albatross is the celebrity of seabird world. Well dressed, perfectly drawn eyeliner, audacious lipstick. Always ready for a night out on the ocean. #noeyelinerneeded #iwokeuplikethis #seabirdcelebrity #albatross #campbellalbatross #wildlifephotography #canonaustralia #annateenlyf
Sun. Orchid. Explosion! I remember this scene, 5 years ago I found this spotted sun orchid in beautiful Bush at Royal National Park. The last golden rays of the sun were hitting the back of the flower causing the most magnificent explosion of pinks a
Sun. Orchid. Explosion! I remember this scene, 5 years ago I found this spotted sun orchid in beautiful Bush at Royal National Park. The last golden rays of the sun were hitting the back of the flower causing the most magnificent explosion of pinks and purples and yellows. . . #australiannativeorchids #australiannativeplants #sunorchid #thelymitraixioides #sun #orchids #macro_secrets #canonaustralia
So happy for the #hoiho to win NZ Bird of the Year, the first seabird to win. I feel incredibly privileged to have seen these gorgeous penguins on Enderby Island in the sub-Antarctics. 
#yelloweyedpenguin #forestandbird #enderbyisland #birdoftheyear2
So happy for the #hoiho to win NZ Bird of the Year, the first seabird to win. I feel incredibly privileged to have seen these gorgeous penguins on Enderby Island in the sub-Antarctics. #yelloweyedpenguin #forestandbird #enderbyisland #birdoftheyear2019 #penguin #subantarctic #seabird
A little bit tongue-in-cheek 😛 
I don’t think I’ll ever get tired of how weird these plumed greenhoods are. The densely hairy labellum is probably involved in pollinator attraction somehow but exactly how is unclear. There is some sugges
A little bit tongue-in-cheek 😛 I don’t think I’ll ever get tired of how weird these plumed greenhoods are. The densely hairy labellum is probably involved in pollinator attraction somehow but exactly how is unclear. There is some suggestion dagger flies are involved in pollination (including a great set of photos by Rudie Kuiter) but evidence is still scarce. . . #australiannativeorchids #pterostylis #greenhood #ausgeo #orchid #australiannativeplants #macro_secrets #zeiss100mmf2

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