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J. Sheard · SciRah

Researcher profile · Semantic Scholar

J. Sheard

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J. Sheard — researcher profile on SciRah

h-index: 22
Works: 79
Citations: 1,425

Most-cited papers

Ecological land classification: A survey approach
J. Rowe, J. Sheard
1981164 citations
Semantic Scholar
Variations and correlations within and between morphology, pathogenicity, and pectolytic enzyme activity in Sclerotinia from Saskatchewan
R. A. A. Morrall, L. Duczek, J. Sheard
197268 citations
Semantic Scholar
Weed communities associated with arable Saskatchewan farm management systems.
J. Leeson, J. Sheard, A. Thomas
200060 citations Open access
Semantic Scholar
A Study of Benthic Communities in Some Saline Lakes in Saskatchewan and Alberta, Canada
B. Timms, U. Hammer, J. Sheard
198649 citations
Semantic Scholar
A quantitative study and multivariate analysis of corticolous lichen communities in the southern boreal forest of Saskatchewan
J. A. Jesberger, J. Sheard
197345 citations
Semantic Scholar
Identification and description of forested vegetation communities available to woodland caribou: relating wildlife habitat to forest cover data
W. Rettie, J. Sheard, F. Messier
199744 citations
Semantic Scholar
Distribution of Vegetation along Environmental Gradients on Sable Island, Nova Scotia
Emily J. Tissier, P. McLoughlin, J. Sheard, J. Johnstone
201341 citations
Semantic Scholar
Paleogeography, chemistry and taxonomy of the lichenized ascomycetes Dimelaena and Thamnolia.
J. Sheard
197740 citations
Semantic Scholar
The lichen genus Rinodina (Physciaceae, Caliciales) in north-eastern Asia
J. Sheard, A. Ezhkin, I. Galanina, D. Himelbrant +7 more
2017The Lichenologist38 citations
Semantic Scholar
Ascochyta lentis renamed Ascochyta fabae f. sp. lentis
B. Gossen, J. Sheard, C. J. Beauchamp, R. A. A. Morrall
198636 citations
Semantic Scholar
The Corticolous and Lignicolous Sorediate, Blastidiate and Isidiate Species of the Genus Rinodina in Southern Europe
M. Giralt, H. Mayrhofer, J. Sheard
1995The Lichenologist33 citations
Semantic Scholar
Transfer of 210Po and 210Pb through the lichen-caribou-wolf food chain of northern Canada.
P. Thomas, J. Sheard, S. Swanson
1994Health Physics33 citations
Semantic Scholar
Vegetation studies at Polar Bear Pass, Bathurst Island, N.W.T. I. Classification of plant communities
J. Sheard, D. Geale
198330 citations
Semantic Scholar
A Synopsis of the Species of Amandinea (Lichenized Ascomycetes, Physciaceae) as Presently Known in North America
J. Sheard, P. May
199728 citations
Semantic Scholar
Virulence of Ascochyta fabae f.sp. lentis on lentil.
Seid Ahmed, R. A. A. Morrall, J. Sheard
199628 citations
Semantic Scholar
Distribution of uranium series radionuclides in upland vegetation of northern Saskatchewan. I. Plant and soil concentrations
J. Sheard
198628 citations
Semantic Scholar
Morphological, chemical and species delimitation analyses provide new taxonomic insights into two groups of Rinodina
Philipp Resl, H. Mayrhofer, S. Clayden, T. Spribille +3 more
2016The Lichenologist26 citations Open access
Semantic Scholar
A Multivariate Analysis of the Distribution of Lichens on Populus tremuloides in West-Central Canada
J. Sheard, M. Jonescu
197426 citations
Semantic Scholar
Multivariate classification of farming systems for use in integrated pest management studies
J. Leeson, J. Sheard, A. Thomas
199924 citations Open access
Semantic Scholar
The taxonomy of the Ramalina siliquosa species aggregate (lichenized Ascomycetes)
J. Sheard
197824 citations
Semantic Scholar
Distribution of uranium series radionuclides in upland vegetation of northern Saskatchewan. II: Patterns of accumulation among species and localities
J. Sheard
198623 citations
Semantic Scholar
The Genus Dimelaena in North America North of Mexico
J. Sheard
197422 citations
Semantic Scholar
A review of Rinodina (Physciaceae) in Great Smoky Mountains National Park highlights the growing significance of this “island of biodiversity” in eastern North America
J. Lendemer, E. Tripp, J. Sheard
201421 citations
Semantic Scholar
Rinodina chrysidiata, a new species from far eastern Asia and the Appalachian Mountains of North America
J. Lendemer, J. Sheard, G. Thor, T. Tønsberg
2012The Lichenologist21 citations
Semantic Scholar
Three new species of Rinodina (Physciaceae) and a new record from North America
J. Sheard, K. Knudsen, H. Mayrhofer, Caleb A. Morse
201121 citations
Semantic Scholar
Biodiversity and ecology of lichens of Katmai and Lake Clark National Parks and Preserves, Alaska
B. Mccune, U. Arup, O. Breuss, Elisa DiMeglio +12 more
201819 citations Open access
Semantic Scholar
A Synopsis and New Key to the Species of Rinodina (Ach.) Gray (Physciaceae, Lichenized Ascomycetes) Presently Recognized in North America
J. Sheard
2018Herzogia18 citations
Semantic Scholar
New Species of Rinodina (Physciaceae, Lichenized Ascomycetes) From Western North America
J. Sheard, H. Mayrhofer
200218 citations
Semantic Scholar
Mobergia (Physciaceae, Lichenized Ascomycetes), a New Genus Endemic to Western North America
H. Mayrhofer, J. Sheard, M. Matzer
199218 citations
Semantic Scholar
Vegetation studies at Polar Bear Pass, Bathurst Island, N.W.T. II. Vegetation–environment relationships
J. Sheard, D. Geale
198318 citations
Semantic Scholar
Vegetation Pattern in a Moss-Lichen Heath Associated With Primary Topographic Features on Jan Mayen'
J. Sheard
196818 citations
Semantic Scholar
The Genus Buellia de Notaris in the British Isles
J. Sheard
1964The Lichenologist18 citations
Semantic Scholar
Rinodina intermedia (Physciaceae, Lichenized Ascomycetes): A Well-characterized Species with Submuriform Ascospores
H. Mayrhofer, J. Sheard, Michaela C. Grassler, J. Elix
200117 citations
Semantic Scholar
The Lichenized Ascomycete Genus Hafellia in North America
J. Sheard
199217 citations
Semantic Scholar
Buellia Japonica (Physciaceae), a New Lichen Record for North America
J. Sheard, J. Lendemer, E. Tripp
200815 citations
Semantic Scholar
Further Contributions to the Genus Rinodina (Physciaceae, Lecanoromycetidae): Two Species New to Science and a New Record for the Canadian High Arctic
J. Sheard, J. Lendemer, T. Spribille, G. Thor +1 more
201214 citations
Semantic Scholar
Rinodina lecanorina and R. luridata, two closely related species on calciferous rocks.
H. Mayrhofer, C. Scheidegger, J. Sheard
199014 citations
Semantic Scholar
TRANSPORT OF SUGAR IN PHYTOPHTHORA PALMIVORA (BUTL.) BUTL.
J. Sheard, J. Farrar
198714 citations Open access
Semantic Scholar
On the taxonomy of five saxicolous species of the genus Rinodina (lichenized Ascomycetes)
H. Mayrhofer, C. Scheidegger, J. Sheard
199213 citations
Semantic Scholar
The comparative ecology and distribution and within-species variation of the lichenized Ascomycetes Ramalina cuspidata and R. siliquosa in the British Isles
J. Sheard
197813 citations
Semantic Scholar
Lichens and Lichenicolous Fungi of Yosemite National Park, California
M. Hutten, U. Arup, O. Breuss, T. Esslinger +9 more
201312 citations Open access
Semantic Scholar
Two new species of the lichenized ascomycete genus Dimelaena Norm.
J. Sheard, H. Mayrhofer
198412 citations
Semantic Scholar
Biodiversity and ecology of lichens of Kenai Fjords National Park, Alaska
B. McCune, U. Arup, O. Breuss, Elisa Di Meglio +9 more
2020Plant and Fungal Systematics11 citations Open access
Semantic Scholar
Rinodina stictica, a New Corticolous, Sorediate Lichen Species from the Pacific Northwest of North America
J. Sheard, T. Tønsberg
199511 citations
Semantic Scholar
Typification of the Taxa Belonging to the Ramalina Siliquosa Species Aggregate
J. Sheard, P. W. James
1976The Lichenologist11 citations
Semantic Scholar
A new corticolous species of Rinodina (Physciaceae) and two interesting range extensions for species collected from Katmai National Park, Alaska
J. Sheard, B. McCune, T. Tønsberg
201410 citations
Semantic Scholar
A New Advance of the Jan Mayen Glaciers and a Remarkable Increase of Precipitation
H. Lamb, J. R. Probert-Jones, J. Sheard
1962Journal of Glaciology10 citations Open access
Semantic Scholar
The lichen genus Rinodina (Physciaceae, Teloschistales) in the Galapagos Islands, Ecuador
F. Bungartz, M. Giralt, J. Sheard, J. Elix
20169 citations
Semantic Scholar
Patterns in the distribution of heptageniid (Ephemeroptera) species in Saskatchewan, Canada
E. R. Whiting, J. Sheard
19909 citations
Semantic Scholar
A new lichenicolous lichen from Europe and western North America in the genus Dimelaena (Physciaceae)
K. Knudsen, J. Sheard, J. Kocourková, H. Mayrhofer
20138 citations
Semantic Scholar

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