gillespie et al (cba 2013) june 2013 final
TRANSCRIPT
Botanical exploration of the Soper River: plant discoveries in the Canadian Arctic
Lynn J. Gillespie, Paul C. Sokoloff, Jeffery M. Saarela, Roger D. Bull
Sokoloff
KatannilikTerritorial Park
– centered on the Soper Heritage River
VMC
J. Dewey Soper – first botanical exploration of the river
40 collections by Soper (1931)27 collections by Aiken (2002)
Gillespie
Gillespie
Mount Joy
0KM
Sokoloff
Cabin 7
9KM
Sokoloff
Livingstone Falls
20KM
Sokoloff
Big Bend
35KM
Sokoloff
Soper Falls49
KM
Sokoloff
Kimmirut 60KM
Sokoloff
898 collections – ca. 250 vascular plant species
= one collection
36 vascular plant families
20% Cyperaceae 13% Poaceae 7% Salicaceae
Gillespie
Salix planifolia – tea-leaved willow
BullSalix planifolia – tea-leaved willowBullBull
NEW DISCOVERIES7 species new to the
Canadian Arctic Archipelago
• Cryptogramma stelleri (Pteridaceae) * • Carex brunnescens (Cyperaceae)• Triglochin palustris (Juncaginacaeae) *• Platanthera obtusata (Orchidaceae)• Primula egalikensis (Primulaceae)• Utricularia ochroleuca (Lentibulariaceae)• Coptidium ×spitsbergense (Ranunculaceae) * new families for
the Arctic Islands
BullTriglochin palustris – marsh arrowgrassBullBull
Primula egaliksensis – Greenland primroseGillespie
Platanthera obtusata – northern bog orchidBull
Gillespie
Cryptogramma stelleri (Pteridaceae) – Steller’s rockbrakeGillespie
Coptidium × spitsbergense – Svalbard buttercupGillespie
Coptidium × spitsbergense Svalbard buttercup
Cody, Blondeau & Cayouette1988 Rhodora 90: 27-36
sterile triploid hybrid between C. lapponicum and C. pallasii
Gillespie
Utricularia ochroleuca (Lentibulariaceae)
NEW DISCOVERIES4 species new to the
Eastern Canadian Arctic Archipelago
• Andromeda polifolia (Ericaceae)• Orthilia secunda (Ericacae)• Calamagrostis stricta subsp.
stricta (Poaceae) • Salix fuscescens (Salicaceae)
Sokoloff
Andromeda polifolia – bog rosemary
Orthilia secunda – one-sided wintergreenBull
NEW DISCOVERIESnew records of rare species - SE Baffin I
• Viscaria alpina (Caryophyllaceae)• Plantago maritima (Plantaginaceae) • 5 sedges (Carex arctogena, C. bicolor, C. gynocrates, C. vaginata, C. williamsii)• 3 rushes (Luzula wahlenbergii, L. multiflora subsp. frigida, Juncus trifidus • 2 grasses (Calamagrostis canadensis subsp. langsdorfii, C. purpurascens),
Bull
Corallorhiza trifida – early coralroot
Bull
Hordeum jubatum subsp. jubatum – foxtail barley
• accurate information on species distributions• complete floristic inventories
NEW ARRIVALS OR LONG ESTABLISHED?
Most new records likely long established species
Cryptogramma perhaps recent natural spread N?
Arctic floristic research – significance
1. baseline data for monitoring climate-induced change in arctic vegetation
2. update published floristic works on the Canadian Arctic
3. new data for the Arctic Flora of Canada and Alaska Project
4. samples for systematic and phylogeographic studies
5. samples for Arctic Flora barcoding project
http://arcticplants.myspecies.info/
Acknowledgments Tommy AkavakJulie Beauchesne
Louis-Phillipe Pothier