botanical exploration of victoria island,...
TRANSCRIPT
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BOTANICAL EXPLORATION OF VICTORIA ISLAND, NUNAVUT
CANADIAN ARCTIC ARCHIPELAGO
Lynn Gillespie
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Flora of the Canadian Arctic
• patterns of species diversity
• 2008 fieldwork on Victoria Island
• fieldwork results and new records
• future research
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Flora of the Canadian Arctic Archipelago (CAA)
• Aiken et al. 2007
• CD published by NRC Press
• interactive identification guide & descriptions of 349 vascular plants
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Flora of the Canadian Arctic Archipelago
for each species:description, nomenclature, cytology, distribution, habitat, ecology, traditional knowledge
Symphyotrichum pygmaeum - Pygmy Aster
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land area1,343,500 km2
vascular plant diversity349 species
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Canadian Arctic ArchipelagoEllesmere
156
Baffin269
Banks215
Axel Heiberg 129
Victoria231
vascular plant species diversity
N-S gradient
Southampton 177
Devon119
Parry Islands150
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CanadianArctic
Archipelago
Ellesmere156
Baffin269
Banks215
Axel Heiberg129
Victoria231
vascular plant diversity
low diversity in central arctic islands
N-S gradient
Southampton 177
Devon119
Parry Islands150
83
68
49
67
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land areakm2
vascular plant species diversity
Baffin 507,455 269Victoria 215,000 231Banks 60,100 215Southampton 40,200 177Ellesmere 198,120 156Parry Islands c. 88,000 150Axel Heiberg 34,770 129Devon 53,400 119King William c. 10,000 83Cornwallis 7,300 68Prince of Wales 35,160 67Ellef Ringnes 10,920 49
Flora of the Canadian Arctic Archipelago
S
C
N
S
N
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Fieldwork in the Canadian Arctic
OBJECTIVES
• explore botanically unknown or under-collected areas
• complete site inventories
• focused systematic projects - grasses, sedges (taxonomy, phylogeny, hybrid origin, biogeography)
• collections for DNA barcoding
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2008 Fieldwork on SW Victoria IslandEllesmere I
Baffin I
Banks I
Cambridge Bay
Yellowknife
Victoria I
• few collections
• close to mainland
• potential rich flora
• baseline plant data for climate change studies
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Jeff Saarela Roger Bull Laurie Consaul
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Prince Patrick I
Baffin I
Banks I Melville I
Cambridge Bay
Victoria I
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Camp 1near Oterkvik Point
Victoria Island
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Camp 1 near Oterkvik Point, Victoria Island
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Camp 1 near Oterkvik Point, Victoria Island
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Camp 2 – near Johansen Bay
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Vaccinium vitis-idaea Mountain cranberry
Ledum palustre subsp. decumbens Labrador tea
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Eriophorum vaginatum
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Andromeda polifolia
new to the Canadian Arctic Archipelago
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Koenigia islandica
new to the western CAA
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new localities for rare Pygmy Aster
*
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Parnassiakotzebuei
Anemone parviflora
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Gentianella propinquaErigeron
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Corallorhizatrifida
1st record of orchid from W Arctic Is.
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Pinguicula vulgaris
insectivorous plantfirst record on W Arctic Islands
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pingo habitat
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Colville Mts
Mountain avens
Arctic oxytrope
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Camp 3 – Sinclair Creek
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Camp 3 – Sinclair CreekCharaerion latifolium – Arctic fireweed
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Papaverhultenii
new record for Canada?
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Prince Patrick I
Banks I Melville I
Cambridge Bay
Victoria I
E-W vegetation gradientstrong Beringian element in W
1 2 3
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Preliminary results
204 species of vascular plants recorded
• 3 species new to CAA• 19 spp. new to western CAA• 30 spp. new to Victoria Island
2008 Fieldwork on SW Victoria Island
Victoria Island
231 261
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ca. 800 in the Canadian Arctic
Research plans • Canadian Arctic collection database (CAN, O, DAO …)
• Flora of the Canadian Arctic- all vascular plants above treeline- c. 800+ species- book & web versions
• fieldwork – coordination with Parks Canada and GEM2009 – Tuktut Nogait NP
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Thank you!