Past Events

Diversification of New Zealand Lineages

Speaker: Gregory T. Nelson, MSc Student, Botany Department, University of Otago/Landcare Research. New Zealand has many charismatic plant lineages that have diversified profusely. Understanding how this process occurs contributes greatly to our understanding of the evolutionary history of New Zealand and the interplays between ecological and evolutionary dynamics. Using resolved phylogenies of representative New Zealand groups, I explore morphological and environmental differences between closely related species with the hypothesis that New Zealand's diversity of habitats have contributed to its diversity of species. At the Zoology Benham Building, 346 Great King Street, behind the Zoology car park by the Captain Cook Hotel. Use the main entrance of the Benham Building to get in and go to the Benham Seminar Room, Rm. 215, 2nd floor. Please be prompt as we have to hold the door open.

Harbour Cone Bioblitz

Saturday 23^rd—Sunday 24^th April. Using the Pukehiki hall as a base, the BSO will run a Bioblitz as part of the 'Wild Dunedin' event (a three day nature festival with various groups and organisations coming together to host events celebrating Dunedin's natural environment and wildlife). Details will be updated on the Botanical Society's website and Facebook page.

BSO AGM and Photographic Competition

A popular and eagerly anticipated event for anyone interested in botanical photography. Learn what makes a good photograph and how to improve your photographic skills from our panel of expert judges. The best photographs will be chosen for the BSO Calendar so this is your opportunity to have one month of fame. Start organising your entries now and dont wait until the last minute. At the Zoology Benham Building, 346 Great King Street, behind the Zoology car park by the Captain Cook Hotel. Use the main entrance of the Benham Building to get in and go to the Benham Seminar Room, Rm. 215, 2nd floor. Please be prompt as we have to hold the door open.

Plants and People in the Pacific Past: A Microscopic Perspective

Note: this talk is different to what was advertised in the Newsletter. A talk by Monica Tromp, PhD Candidate, Department of Anatomy, University of Otago. Colonization and settlement on the incredibly diverse islands of the Pacific would not have been possible without an intimate relationship with plants. A rather unconventional way of looking at this relationship is found within the mouths of early settlers. Microscopic remains of plants can be recovered from hardened plaque scraped off of ancient people's teeth to give us a better idea of what people ate and how they interacted with their environment. I will present highlights of my work from Rapa Nui (Easter Island), Vanuatu and New Britain. At the Zoology Benham Building, 346 Great King Street, behind the Zoology car park by the Captain Cook Hotel. Use the main entrance of the Benham Building to get in and go to the Benham Seminar Room, Rm. 215, 2nd floor. Please be prompt as we have to hold the door open.

Taieri Mouth Track to John Bull's Gully

This track runs from Taieri Mouth upstream along the true right of the Taieri River towards Henley through native bush in varying degrees of recovery and includes some estuarine salt marsh and a fine example of native carr vegetation. The area has an interesting Māori and European history still evident in some of the landmarks to be found on the way. The track is in good condition and fairly easy. Leave the Department of Botany car park at 8.30 a.m. returning early afternoon.

Field trip to Borland

Friday 12^th–Sunday 14^th February 2016. A weekend field trip to Borland in East Fiordland to explore the beech forests, lake margins and alpine areas. The area is rich in botanical and ecological history. A hand lens, camera and sense of adventure are a must! We will be staying at the Borland Lodge, so please RSVP to Gretchen Brownstein by 20^th January 2016

Field trip to Old Man Range

Joint trip with Dunedin Branch of Forest and Bird. The Old Man Range is one of the high, block ranges of Central Otago. The main summit plateau is above 1600 m and is of varied topography with bare, windswept slopes, snowbanks, gullies and wetlands each supporting different plant communities. We propose visiting the Hyde Rock area at the southern end of the range where we will be able to see representative examples of the different vegetation types. There are extensive snowbanks where Hebejeebie trifida, Celmisia haastii, Geum uniflorum, Ranunculus pachyrrhizus and Caltha obtusa may be found. The area is floristically very rich and despite being extensively botanised, there are a number of poorly known or undescribed species present. Examples recorded belong to the genera Myosotis, Ranunculus, Chionohebe, Cardamine and Luzula. To gain access 4WD vehicles are required. Places on this trip may be limited. The Old Man Range is a severe, high-alpine environment with high winds and very cold temperatures so warm clothing and good parkas are essential. Bring lunch. Leaving Botany car park 8.00 am returning late as we aim to spend as much time as possible in the field.

Allan Mere Award Ceremony

We are delighted to announce that Alan Mark has been awarded the 2015 Allan Mere Award for his outstanding contributions to botany over a life time of distinguished botanical work. Anthony Wright, President of the New Zealand Botanical Society, will be coming to Dunedin to present the precious greenstone/pounamu Allan Mere to Alan. There will also be a presentation entitled, "Images and Adventures", which will tell the stories and show the places where some of the photos selected for Alan's Book, Above the Treeline, were obtained. Everyone is invited to come and celebrate this special occasion in the Benham Seminar Room, Room 215, on the second floor of the new wing on the Zoology Building, 346 Great King Street, beside the Captain Cook Hotel. Please be prompt, as the door will only be held open until 5.30 pm.

The award-giving will be followed by our end of year dinner, starting at 7 pm, at Vogel St Kitchen, 76 Vogel St, in the warehouse precinct just north of the Cumberland Street overbridge and tucked in between the two one-way streets. Please let Robyn Bridges know if you wish to attend.

Field trip to Black Rock Scientific Reserve

Black Rock Scientific Reserve (144 ha) on the Lammerlaw Range was set aside in 1971 to preserve an area of low altitude snow tussock grassland. The reserve consists of gently rolling ridges (690–770 m above sea level) dominated by narrow-leaved snow tussock (Chionochloa rigida) associations and with shallow gullies containing sphagnum bog and other vegetation communities. The reserve has been the subject of vegetation monitoring and study since its inception. A study carried out by Bullock in 1972 recorded c. 114 vascular plant taxa. We'll make a plant list during our visit and compare this with the 1972 list. Meet at the Botany department car park at 9 am. Return by 4 pm

Botanical adventures in the Russian Far East, from Japan to the High Arctic

Speaker, Dr Alex Fergus. Join Alex for a botanical adventure in the Russian Far East. For 14 weeks, over four years, Alex and a ship-load of botanical sympathizers (they had no choice) cruised thousands of kilometers along the entire eastern coastline of Russia. Our exploration begins at the southern tip of the Kamchatka Peninsula, where we follow the Kuril Island chain, an active arc of volcanoes, south toward Japan and our southern-most point, Kunashir Island (44°N). The Kuril Islands astound with surprises, from abandoned soviet cities in sunken calderas, to Bamboo (Sasa) thickets under Larch canopies punctuated with Fritillarias and Trilliums. From here we head north along the east coast of Sakhalin Island and circumnavigate the Sea of Okhotsk, taking in the diverse Shantar Archipelago, before regaining the Kamchatka Peninsula and heading north. Leaving mainland Russia, we push seaward to the westernmost of the Aleutian Islands, The Commanders, treeless clag-cloaked islands with rich herb-dominated tundra, and the resting place of Vitus Bering. We return once again to the Kamchatka Peninsula and proceed to steam north along the coast for 2000 kms. Slowly, forests give way to tundra, as the permafrost thickens, and summer day lengths and temperatures truncate. Nevertheless, floristic 'spectularities' are still be found in the likes of Keyflower (Dactylorhiza orchids) fields and Brown Bear infested brightly coloured dwarven Rhododendron copses. Pushing north, we encounter some of Russia's richest coastal tundra on the southern Chukotkan Peninsula, where terraces dominated by pink Fireweed (Chamerion) and blue Monkshood (Aconitum) are beleaguered by the voracious appetites of gobbling hordes of Northern Pika (tiny-barking rabbits) and Arctic Ground Squirrels. Making our way through the Bering Strait we pass Russia's eastern-most point, Ratmanov Island (Big Diomede), an Alcid paradise, where Russia is separated from the US by only 4 kms. We follow the Russian coastline once more north and east, toward the vastness of Kolyuchin Inlet, a haven for waterfowl and migratory waders, where ponds of Mares-tail (Hippuris) give way to gravelly arid strips of lichens and what are typically alpine specialists (e.g. Diapensia), here, only a meter or two above sea level. Once again, and for the last time, we head north, really very far north, to Wrangel Island (71°N). On Wrangel winds buffer the Arctic Tundra, Muskox graze shrubby inland river valleys, and Polar Bears harangue Walrus in the surf. Here also, the last Mammoth, a miniature ginger variety, foraged a unique mixture of steppe and tundra plants less than 4000 years ago. With 420 taxa, Wrangel has more than double the plant diversity of any other Arctic island of comparable size. Wrangel has more endemic plant species than all of Greenland, and is home to 24 rare Arctic endemics, many of which are relic Pleistocene species from the all but lost Beringian Land Bridge. Wrangel Island is the pinnacle of our Russian botanical adventure.

* Note, this talk will be mostly photos, it may include tastings of Labrador Tea, and for authenticity, we best follow it up with a small glass of vodka.

At the Zoology Benham Building, 346 Great King Street, behind the Zoology car park by the Captain Cook Hotel. Use the main entrance of the Benham Building to get in and go to the Benham Seminar Room, Rm. 215, 2nd floor. Please be prompt as we have to hold the door open.

Products of history: Immigration timing of New Zealand plant ancestors affects present-day communities

Speaker, Angela J. Brandt, Landcare Research—Manaaki Whenua, Dunedin. Island floras tend to be distinctive in their diversity and composition often with large numbers of endemic species in few genera. One proposed explanation for this pattern is the interplay of ecological and evolutionary processes where early-arriving plant ancestors encounter greater opportunity to colonise new environments and diversify. These early-arriving groups may thus fill ecological niches and preclude later arrivals from establishing subsequently dominating plant communities to the present-day. Using dated molecular phylogenies to estimate order of arrival of plant ancestors to New Zealand, I show that early-arriving lineages tend to dominate communities in both relatively young (alpine) and older (forest) ecosystems. However, the current challenge is to understand whether anthropogenic modification and introduced species alter the role of evolutionary history in shaping New Zealand's plant communities. At the Zoology Benham Building, 346 Great King Street, behind the Zoology car park by the Captain Cook Hotel. Use the main entrance of the Benham Building to get in and go to the Benham Seminar Room, Rm. 215, 2nd floor. Please be prompt as we have to hold the door open.

Botany Student Colloquium

Botany students presenting their current research. Guest lecture by Angela J. Brandt. All welcome to attend. Location: Physical Education seminar room 214 (on Union Street)

Field trip to Silverstream

We will begin from the car park at Silverstream Valley Road and take the Racemans track for a short time before turning off on to the McRaes Weir circuit. The track crosses McRaes stream and follows an old water race. We will decide on the day what, if any variations, of this route everyone wants to do. The forest will be damp, shady, and muddy in places, so bring sturdy footwear and warm clothing along with your lunch and a parka. Expected return time between 3.00–4.00 pm.

The discovery of slowness: life in the plant lane. 13th Annual Geoff Baylis Lecture Speaker Professor Steven Higgins

Speaker Professor Steven Higgins, Castle 1, University of Otago (drinks and nibbles starting from 5.15 pm in the concourse).

Abstract

Plants do many fantastic things, but they do them slowly, which make it difficult for us to appreciate them. How then will plants cope with rapid environmental change and our short attention spans?

Plants are reputedly obedient. After all they stand still and wait to be counted. But this apparent obedience masks their power as the true engineers of our planet and their disregard for human beings. It is an open secret that plants made the planet we now find so cosy—they manipulated the atmosphere, created soil and shaped our climate. Plants are of course under appreciated, and for good reason, for unlike competing deities it took plants more than seven days to achieve their wonders. But before the Anthropocene such slowness was not persecuted. Back in deep time, better did not mean faster. In deep time plants were afforded the time to evolve their way out of crises, re-engineering the world as they went. But the rules of the game are changing, our world is faster and the next crisis will not play out on geological time scales. How will plants deal with being forced into the fast lane?

CANCELLED Stevensons Bush Scenic Reserve

CANCELLED DUE TO IMPENDING BAD WEATHER Probably one of Dunedin's least known and least visited public reserves. This substantial remnant of dry, coastal, native bush with some mature podocarps surrounded by regenerating trees and shrubs forms a large V-shaped gully from McGregors Hill down to St Leonards and is a remnant of the extensive forest that once covered the north harbour hills. Leave the Department of Botany car park at 9.30 a.m. returning early afternoon.