Search Results - "BULL, Roger D"

DNA barcoding the Canadian Arctic flora: core plastid barcodes (rbcL + matK) for 490 vascular plant species by Saarela, Jeffery M, Sokoloff, Paul C, Gillespie, Lynn J, Consaul, Laurie L, Bull, Roger D

“…Accurate identification of Arctic plant species is critical for understanding potential climate-induced changes in their diversity and distributions. To…”
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A phylogenetic analysis of Bromus (Poaceae: Pooideae: Bromeae) based on nuclear ribosomal and plastid data, with a focus on Bromus sect. Bromus by Nasiri, Akram, Kazempour-Osaloo, Shahrokh, Hamzehee, Behnam, Bull, Roger D, Saarela, Jeffery M

“…To investigate phylogenetic relationships among and within major lineages of , with focus on sect. , we analyzed DNA sequences from two nuclear ribosomal (ITS,…”
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Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1) by Saarela, Jeffery M, Bull, Roger D, Paradis, Michel J, Ebata, Sharon N, Paul M Peterson, Soreng, Robert J, Paszko, Beata

“…Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify…”
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Vascular plant biodiversity of Katannilik Territorial Park, Kimmirut and vicinity on Baffin Island, Nunavut, Canada: an annotated checklist of an Arctic flora by Saarela, Jeffery M, Sokoloff, Paul C, Gillespie, Lynn J, Bull, Roger D

“…The Arctic ecozone is undergoing a rapid transformation in response to climate change. Establishing a baseline of current Arctic biodiversity is necessary to…”
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Vascular plant biodiversity of the lower Coppermine River valley and vicinity (Nunavut, Canada): an annotated checklist of an Arctic flora by Saarela, Jeffery M, Sokoloff, Paul C, Bull, Roger D

“…The Coppermine River in western Nunavut is one of Canada's great Arctic rivers, yet its vascular plant flora is poorly known. Here, we report the results of a…”
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Molecular and morphological evidence for a new grass genus, Dupontiopsis (Poaceae tribe Poeae subtribe Poinae s.l.), endemic to alpine Japan, and implications for the reticulate origin of Dupontia and Arctophila within Poinae s.l by SORENG, Robert J, GILLESPIE, Lynn J, KOBA, Hidehisa, BOUDKO, Ekaterina, BULL, Roger D

“…Phylogenetic analyses within Poaceae tribe Poeae subtribes Puccinellinae (=Coleanthinae), Phleinae, Poinae s.l. (including Alopecurinae), and Miliinae (PPAM…”
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Vascular plants of Victoria Island (Northwest Territories and Nunavut, Canada): a specimen-based study of an Arctic flora by Saarela, Jeffery M, Sokoloff, Paul C, Gillespie, Lynn J, Bull, Roger D, Bennett, Bruce A, Ponomarenko, Serguei

“…Victoria Island in Canada's western Arctic is the eighth largest island in the world and the second largest in Canada. Here, we report the results of a…”
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Underwater and Above-Water Search Patterns of an Arctic Seabird: Reduced Searching at Small Spatiotemporal Scales by Elliott, Kyle Hamish, Bull, Roger D., Gaston, Anthony J., Davoren, Gail K.

“…How predators vary search patterns in response to prey predictability is poorly known. For example, marine invertebrates may be predictable but of low energy…”
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Blood Parasite Infection and Heterozygosity in Pure and Genetic-Hybrid Golden-Winged Warblers (Vermivora chrysoptera) Across Canada by Vallender, Rachel, Bull, Roger D, Moulton, Laurel L, Robertson, Raleigh J

“…We examined heterozygosity at hypervariable microsatellite loci and blood parasite presence—absence in five populations of Golden-winged Warblers (Vermivora…”
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New vascular plant records for the Canadian Arctic Archipelago by Gillespie, Lynn J, Saarela, Jeffery M, Sokoloff, Paul C, Bull, Roger D

“…The Canadian Arctic Archipelago is a vast region of approximately 1,420,000 km(2), with a flora characterized by low species diversity, low endemicity, and…”
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Multiple Pleistocene refugia for Arctic Bell‐Heather revealed with genomic analyses of modern and historic plants by Elphinstone, Cassandra, Hernández, Fernando, Todesco, Marco, Légaré, Jean‐Sébastien, Cheung, Winnie, Sokoloff, Paul C., Hofgaard, Annika, Christiansen, Casper T., Frei, Esther R., Lévesque, Esther, Daskalova, Gergana N., Thomas, Haydn J. D., Myers‐Smith, Isla H., Harris, Jacob A., Saarela, Jeffery M., May, Jeremy L., Obst, Joachim, Boike, Julia, Clark, Karin, MacIntosh, Katie, Betway‐May, Katlyn R., Case, Liam, Björkman, Mats P., Moody, Michael L., Schmidt, Niels Martin, Molgaard, Per, Björk, Robert G., Hollister, Robert D., Bull, Roger D., Agger, Sofie, Maire, Vincent, Henry, Greg H. R., Rieseberg, Loren H.

“…Aim Arctic plants survived the Pleistocene glaciations in unglaciated refugia. The number, ages, and locations of these refugia are often unclear. We use…”
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Single cell PCR amplification of diatoms using fresh and preserved samples by Hamilton, Paul B, Lefebvre, Keely E, Bull, Roger D

“…Single cell Chelex® DNA extraction and nested PCR amplification were used to examine partial gene sequences from natural diatom populations for taxonomic and…”
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Vascular plants of Victoria Island (Northwest Territories and Nunavut, Canada): a specimen-based study of an Arctic flora by Roger D. Bull, Serguei Ponomarenko, Paul C. Sokoloff, Jeffery M. Saarela, Bruce A. Bennett, Lynn J. Gillespie

“…Victoria Island in Canada’s western Arctic is the eighth largest island in the world and the second largest in Canada. Here, we report the results of a…”
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regional approach to plant DNA barcoding provides high species resolution of sedges (Carex and Kobresia, Cyperaceae) in the Canadian Arctic Archipelago by CLERC-BLAIN, JESSICA LE, STARR, JULIAN R, BULL, ROGER D, SAARELA, JEFFERY M

“…Previous research on barcoding sedges (Carex) suggested that basic searches within a global barcoding database would probably not resolve more than 60% of the…”
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Balsam Poplar (Populus balsamifera; Salicaceae) Beyond the Tree Line in the Western Canadian Mainland Arctic (Northwest Territories) by SAARELA, JEFFERY M., GILLESPIE, LYNN J., CONSAUL, LAURIE L., BULL, ROGER D.

“…Balsam poplar is the northernmost tree species in North America, with a reported range that extends generally to the tree line across the continent and beyond…”
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Evidence of Recent Population Differentiation in Orange-crowned Warblers (Vermivora celata) in Haida Gwaii by Bull, Roger D, McCracken, Andrée, Gaston, Anthony J, Birt, Tim P, Friesen, Vicki L

“…The Haida Gwaii archipelago (formerly the Queen Charlotte Islands) off northern British Columbia hosts many endemic taxa of plants and animals, including 9…”
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Morphological and phylogenetic evidence for subtribe Cinninae and two new subtribes, Hookerochloinae and Dupontiinae (Poaceae tribe Poeae PPAM clade) by Gillespie, Lynn J., Soreng, Robert J., Bull, Roger D., Lange, Peter J., Smissen, Rob D.

“…Molecular phylogenetic analyses and morphological characters of the grass supersubtribe Poodinae (tribe Poeae, PPAM clade) were evaluated with the goal of…”
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Molecular and morphological evidence for a new grass genus, Dupontiopsis （Poaceae tribe Poeae subtribe Poinae s.l.）, endemic to alpine Japan, and implications for the reticulate origin of Dupontia and Arctophila within Poinae s.l by Robert J. Soreng Lynn J. Gillespie Hidehisa Koba Ekaterina Boudko Roger D. Bull

“…Phylogenetic analyses within Poaceae tribe Poeae subtribes Puccinellinae （=Coleanthinae）, Phleinae, Poinae s.I. （including Alopecurinae）, and Miliinae （PPAM…”
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Balsam poplar by Saarela, Jeffery M, Gillespie, Lynn J, Consaul, Laurie L, Bull, Roger D

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DNA Barcoding the Canadian Arctic Flora: Core Plastid Barcodes (rbcL + matK) for 490 Vascular Plant Species: e77982 by Saarela, Jeffery M, Sokoloff, Paul C, Gillespie, Lynn J, Consaul, Laurie L, Bull, Roger D

“…Accurate identification of Arctic plant species is critical for understanding potential climate-induced changes in their diversity and distributions. To…”
Get full text