Past Projects

students watch birds at a birdfeeder

Looking for a specific study? Click on the plus(+) sign to expand each header to see scientific papers based in The Arboretum puiblished in that decade. Under each heading papers are listed alphebetically by author's last name. You can also press 'Ctrl+F' to search this page for the author's name, title of paper, Journal, or species. 

Anacker, B.L., J.N. Klironomos, H. Maherali, K.O. Reinhart, and S.Y. Strauss. 2014. Phylogenetic conservatism in plant‐soil feedback and its implications for plant abundance. Ecology Letters 17(12): 1613-21.

Baxter, L.R., D.L. Moore, P.K. Sibley, K.R. Solomon, and M.L. Hanson. 2011. Atrazine does not affect algal biomass or snail populations in microcosm communities at environmentally relevant concentrations. Environmental Toxicology and Chemistry 30(7): 1689-96.

Best, A., E. Arnaud, B. Parker, R. Aravena, and K. Dunfield. 2015. Effects of glacial sediment type and land use on nitrate patterns in groundwater. Groundwater Monitoring & Remediation 35(1): 68-81.

Betini, G.S., and Dr.R. Norris. 2012. The relationship between personality and plasticity in tree swallow aggression and the consequences for reproductive success. Animal Behaviour 83(1): 137-43.

Broders, K.D., and G.J. Boland. 2011. Reclassification of the butternut canker fungus, Sirococcus clavigignenti-juglandacearum, into the genus Ophiognomonia. Fungal Biology 115(1): 70-9.

Broders, K.D., K.E. Woeste, P.J. SanMiguel, R.P. Westerman, and G.J. Boland. 2011. Discovery of single‐nucleotide polymorphisms (SNPs) in the uncharacterized genome of the ascomycete Ophiognomonia clavigignenti‐juglandacearum from 454 sequence data. Molecular Ecology Resources 11(4): 693-702.

Broders, K.D., A. Boraks, A.M. Sanchez, and G.J. Boland. 2012. Population structure of the butternut canker fungus, Ophiognomonia clavigignenti‐juglandacearum, in North American forests. Ecology and Evolution 2(9): 2114-27.

Brunke, A.J., and C.G. Majka. 2010. The adventive genus Xantholinus dejean (Coleoptera, Staphylinidae, Staphylininae) in North America: New records and a synthesis of distributional data. Zookeys (65): 51.

Caruso, C.M., S.L. Scott, J.C. Wray, and C.A. Walsh. 2010. Pollinators, herbivores, and the maintenance of flower color variation: A case study with Lobelia siphilitica. International Journal of Plant Sciences 171(9): 1020-8.

Fox, S. 2012. Picking up the Pawpaws: The Rare Woody Plants of Ontario Program at the University of Guelph Arboretum. Arnoldia 69(3): 2-13.

Huber, J.T. 2012. Revision of Ooctonus (Hymenoptera: Mymaridae) in the nearctic region. Journal of the Entomological Society of Ontario 143: 15-105.

Husband, B.C., S.J. Baldwin, and H.A. Sabara. 2016. Direct vs. indirect effects of whole-genome duplication on prezygotic isolation in Chamerion angustifolium: Implications for rapid speciation. American Journal of Botany 103(7), 1259-1271.

Ickert‐Bond, S.M., Gerrath, J.M., U. Posluszny, and J. Wen. 2015. Inflorescence development in the Vitis–Ampelocissus clade of Vitaceae: the unusual lamellate inflorescence of Pterisanthes. Botanical Journal of the Linnean Society 179(4), 725-741.

Kwok, A. 2013. The role of polyploidy in the evolution of gender dimorphism: An experimental approach using Fragaria vesca. MSc Thesis, University of Guelph, Ontario, Canada.

Maherali, H., and J.N. Klironomos. 2012. Phylogenetic and trait-based assembly of arbuscular mycorrhizal fungal communities. PLoS One 7(5): e36695.

McClenaghan, B., J.F. Gibson, S. Shokralla, and M. Hajibabaei. 2015. Discrimination of grasshopper (Orthoptera: Acrididae) diet and niche overlap using next‐generation sequencing of gut contents. Ecology and evolution 5(15), 3046-3055.

McMullin, R.T. and C. Lewis. 2013. New and interesting lichens from Ontario, Canada. Opuscula Philolichenum 12: 6-16

McMullin, R.T., J. Maloles, C. Earley, S. Newmaster. 2014. The Arboretum at the University of Guelph, Ontario: An urban refuge for lichen biodiversity. North American Fungi 9(5): 1-16

Poon, G. 2011. The influence of soil feedback and plant traits on competition between an invasive plant and co-occurring native and exotic species. Thesis dissertation UoGuelph.

Poon, G.T., and H. Maherali. 2015. Competitive interactions between a nonmycorrhizal invasive plant, Alliaria petiolata, and a suite of mycorrhizal grassland, old field, and forest species. PeerJ 7(3): e1090.

Rathwell, R., E. Popova, M.R. Shukla, and P.K. Saxena. 2016. Development of cryopreservation methods for cherry birch (Betula lenta L.), an endangered tree species in Canada. Canadian Journal of Forest Research 46(11), 1284-1292.

Reynolds, J.W. 2011 The earthworms (Oligochaeta: Lumbricidae) of the University of Guelph Arboretum, Wellington County, Ontario, Canada. Megadrilogica 15(2):15-20

Sherif, S.M., M.R. Shukla, S.J. Murch, L. Bernier, and P.K. Saxena. 2016. Simultaneous induction of jasmonic acid and disease-responsive genes signifies tolerance of American elm to Dutch elm disease. Sci. Rep 6: 21934.

Sherrard, M.E., and H. Maherali. 2012. Local adaptation across a fertility gradient is influenced by soil biota in the invasive grass, Bromus inermis. Evolutionary Ecology 26(3): 529-44.

Soliman, S.S.M, C.P. Trobacher, R. Tsao, J.S. Greenwood, and M.N. Raizada. 2013. A fungal endophyte induces transcription of genes encoding a redundant fungicide pathway in its host plant. BMC Plant Biology 13(1): 93.

Stanescu, S., and H. Maherali. 2016. Arbuscular mycorrhizal fungi alter the competitive hierarchy among old-field plant species. Oecologia 1-13.

Steelman, C.M., E. Arnaud, P. Pehme, and B.L. Parker. 2017. Geophysical, geological and hydrogeological characterization of a tributary buried bedrock valley in southern Ontario. Can. J. Earth Sciences: 1-18.

Straub, S.C.K, and J.J. Doyle. 2014. Molecular phylogenetics of Amorpha (Fabaceae): An evaluation of monophyly, species relationships, and polyploid origins. Molecular Phylogenetics and Evolution 76: 49-66.

Thompson, T.E., and P.J. Conner. 2012. Pecan. Fruit Breeding: 771-801.

Wassink, E.D.. 2012. The effects of competition for pollination on floral evolution of gynodioecious Lobelia siphilitica. MSc Thesis, University of Guelph, Ontario, Canada.

Wassink, E., and C.M. Caruso. 2013. Effect of coflowering Mimulus ringens on phenotypic selection on floral traits of gynodioecious Lobelia siphilitica. Botany 91(11): 745-51.


Braukmann, T.W.A., M. Kuzmina, and S. Stefanović. 2009. Loss of all plastid ndh genes in gnetales and conifers: Extent and evolutionary significance for the seed plant phylogeny. Current Genetics 55(3): 323-37.

Betini, G.S., K.A. Hobson, L.I. Wassenaar, and Dr.R. Norris. 2009. Stable hydrogen isotope (δD) values in songbird nestlings: Effects of diet, temperature, and body size. Canadian Journal of Zoology 87(9): 767-72.

Brodo, I.M., C. Lewis, and B. Craig. 2007. Xanthoria parietina, a coastal lichen, rediscovered in Ontario. Northeastern Naturalist 14(2): 300-6.

Bruneau, A., J.R. Starr, and S. Joly. 2007. Phylogenetic relationships in the genus Rosa: New evidence from chloroplast DNA sequences and an appraisal of current knowledge. Systematic Botany 32(2): 366-78.

Caruso, C.M., and S.J. Yakobowski. 2008. Selection on floral and carbon uptake traits of Lobelia siphilitica is similar in females and hermaphrodites. Journal of Evolutionary Biology 21(6): 1514-23.

Gerrath, J.M., U. Posluszny, and N.G. Dengler. 2001. Primary vascular patterns in the Vitaceae. International Journal of Plant Sciences 162(4): 729-45.

Ivanova, N.V., A.J. Fazekas, and P.D.N Hebert. 2008. Semi-automated, membrane-based protocol for DNA isolation from plants. Plant Molecular Biology Reporter 26(3): 186-98.

Klironomos, J.N. 2002. Feedback with soil biota contributes to plant rarity and invasiveness in communities. Nature 417(6884): 67-70.

Kron, P., and B.C. Husband. 2009. Hybridization and the reproductive pathways mediating gene flow between native malus coronaria and domestic apple, M. domestica. Botany 87(9): 864-74.

MacPhail, V.J., and P.G. Kevan. 2005. Reproductive success and insect visitation in wild roses (Rosa spp.)-preliminary results from 2004. Paper presented at IV International Symposium on Rose Research and Cultivation 751.

Paiero, S.M., S.A. Marshall, and K.G.A. Hamilton. 2003. New records of Hemiptera from Canada and Ontario. Journal of the Entomological Society of Ontario 134: 115-29.

Roussy, A.M., and P.G. Kevan. 2000. How accessible are receptive megastrobili to pollen? The example of jack pine (pinus banksiana). American Journal of Botany 87(2): 215-20.

Wolfe, B.E., B.C. Husband, and J.N. Klironomos. 2005. Effects of a belowground mutualism on an aboveground mutualism. Ecology Letters 8(2): 218-23.

Boyle, T.J.B. 1992. Forest tree genetic conservation activities in Canada. Canadian Forest Services Publications.

Drew, A.J. 1999. Behaviour of adult native skippers, Polites themistocles (Latreille, 1824), in the presence of an introduced species, Thymelicus lineola (Ochsenheimer, 1808). MSc Thesis, University of Guelph, Ontario, Canada.

Gall, W.K. 1992. Further eastern range extension and host records for Leptoglossus accidentalis (Heteroptera: Coreidae): Well-documented dispersal of a household nuisance. Great Lakes Entomologist 25(3): 159

Gissing, G.J., T.J. Crease, A.L.A Middleton. 1998. Extrapair paternity associated with renesting in the american goldfinch. Auk 115: 230-234.

Greenwood, J.S., C. Demmers, and S. Wetzel. 1990. Seasonally dependent formation of protein-storage vacuoles in the inner bark tissues of salix microstachya. Canadian Journal of Botany 68(8): 1747-55.

Grimaldi, D., A.C. James, and J. Jaenike. 1992. Systematics and modes of reproductive isolation in the holarctic Drosophila testacea species group (diptera: Drosophilidae). Annals of the Entomological Society of America 85(6): 671-85.

Harris, M.L., C.A. Bishop, J. Struger, B. Ripley, and J.P. Bogart. 1998. The functional integrity of northern leopard frog (Rana pipiens) and green frog (Rana clamitans) populations in orchard wetlands. II. effects of pesticides and eutrophic conditions on early life stage development. Environmental Toxicology and Chemistry 17(7): 1351-63.

Harris, M.L., C.A. Bishop, J. Struger, V.D. Heuvel, M.R, V.D. Kraak, J. Glen, D.G. Dixon, B. Ripley, and J.P. Bogart. 1998. The functional integrity of northern leopard frog (Rana pipiens) and green frog (Rana clamitans) populations in orchard wetlands. I. genetics, physiology, and biochemistry of breeding adults and young‐of‐the‐year. Environmental Toxicology and Chemistry 17 (7): 1338-50.

Kevan, P.G. 1990. How large bees, Bombus and Xylocopa (Apoidea, Hymenoptera) forage on trees: Optimality and patterns of movement in temperate and tropical climates. Ethology Ecology & Evolution 2(3): 233-42.

Kevan, P.G., J.D. Ambrose, and J.R. Kemp. 1991. Pollination in an understory vine, Smilax rotundifolia, a threatened plant of the Carolinian forests in Canada. Canadian Journal of Botany 69(11): 2555-9.

Klironomos, J.N., E.M. Bednarczuk, and J. Neville. 1999. Reproductive significance of feeding on saprobic and arbuscular mycorrhizal fungi by the collembolan, Folsomia candida. Functional Ecology 13(6): 756-61.

Klironomos, J.N.  1999. Feedback with soil biota contributes to plant rarity and invasiveness in communities. Science 286: 2165-9.

Mariani, C., C. Earley, C. McKinnon. 1993 Early nesting by the american goldfinch, Carduelis tristis, and subsequent parasitism by the brown-headed crowbird, Molothrus ater, in ontario. Canadian Field Naturalist 107: 349-350.

Olson, V.A., G.J. Gissing, J.R. Barta, and A.L.A Middleton. 1998. A new Isospora sp. from Carduelis tristis (Aves: Fringillidae) from Ontario, Canada. The Journal of Parasitology: 153-6.

Reader, R.J. 1997. Potential effects of granivores on old field succession. Canadian Journal of Botany - Revue Canadienne de Botanique 75: 2224-2227.

Rye, L.A., and M.R. Baker. 1992. The life history of Hysterothylacium analarum (Rye and Baker, 1984) (Nematoda: Anisakidae) in Lepomis gibbosus (Pisces: Centrarchidae) in southern Ontario, Canada. Canadian Journal of Zoology 70(8): 1576-84.

Smith, R.L., and K.J. Sytsma. 1990. Evolution of Populus nigra (Sect. Aigeiros): Introgressive hybridization and the chloroplast contribution of Populus alba (Sect. Populus). American Journal of Botany: 1176-87.

Wetzel, S., C. Demmers, and J.S. Greenwood. 1991. Protein-storing vacuoles in inner bark and leaves of softwoods. Trees 5(4): 196-202.

Wetzel, S., and J.S. Greenwood. 1991. The 32-kilodalton vegetative storage protein of Salix microstachya Turz characterization and immunolocalization. Plant Physiology 97(2): 771-7.

Wetzel, S., and J.S. Greenwood. 1991. A survey of seasonal bark proteins in eight temperate hardwoods. Trees 5(3): 153-7.

Ambrose, J.D., P.G. Kevan, and R.M. Gadawski. 1985. Hop tree (Ptelea trifoliata) in Canada: Population and reproductive biology of a rare species. Canadian Journal of Botany 63(11): 1928-35.

Adamson, M.L. 1981. Studies on gametogenesis in Gyrinicola batrachiensis (Walton, 1929) (Oxyuroidea: Nematoda). Canadian Journal of Zoology 59 (7): 1368-76.

Appy, R.G., and M.J. Dadswell. 1983. Transmission and development of Capillospirura pseudoargumentosa (Appy and Dadswell, 1978)(Nematoda: Cystidicolidae). Canadian Journal of Zoology 61(4): 848-59.

Bate, N.J., S.B. Rood, and T.J. Blake. 1988. Gibberellins and heterosis in poplar. Canadian Journal of Botany 66(6): 1148-52.

Bartlett, C.M. 1984. Development of Dirofilaria scapiceps (Leidy, 1886) (Nematoda: Filarioidea) in Aedes spp. and Mansonia perturbans (Walker) and responses of mosquitoes to infection. Canadian Journal of Zoology 62(1): 112-29.

Beverley-Burton, M. 1981. Actinocleidus oculatus (Mueller, 1934) and A. recurvatus (Mizelle and Donahue, 1944) (Monogenea: Ancyrocephalinae) from Lepomis gibbosus L.(Pisces: Centrarchidae) in Ontario, Canada: Anatomy and systematic position. Canadian Journal of Zoology 59 (9): 1810-7.

Eastham, A.M., and D.P. Ormrod. 1986. Visible injury and growth responses of young cuttings of Populus canadensis and P. nigra to nitrogen dioxide and sulphur dioxide. Canadian Journal of Forest Research 16(6): 1289-92.

Gerrath, J.M., and U. Posluszny. 1988. Morphological and anatomical development in the Vitaceae. II. floral development in Vitis riparia. Canadian Journal of Botany 66(7): 1334-51.

Gerrath, J.M., and U. Posluszny. 1989. Morphological and anatomical development in the Vitaceae. III. vegetative development in Parthenocissus inserta. Canadian Journal of Botany 67(3): 803-16.

Gerrath, J.M., and U. Posluszny. 1989. Morphological and anatomical development in the Vitaceae. IV. floral development in Parthenocissus inserta. Canadian Journal of Botany 67(5): 1356-65.

Gerrath, J.M., and U. Posluszny. 1989. Morphological and anatomical development in the Vitaceae. V. vegetative and floral development in Ampelopsis brevipedunculata. Canadian Journal of Botany 67(8): 2371-86.

Lacroix, C.R., and U. Posluszny. 1989. Phyllotactic patterns in some members of the Vitaceae. Botanical Gazette: 303-13.

Lacroix, C.R., and U. Posluszny. 1989. Stipules in some members of the Vitaceae: Relating processes of development to the mature structure. American Journal of Botany: 1203-15.

Larson, D.W. 1983. The pattern of production within individual Umbilicaria lichen thalli. New Phytologist 94(3): 409-19.

Lowe, S.B., and J.D. Ambrose. 1981. An arboretum display of woody plants for land rehabilitation. Arboricultural Journal 5(2): 117-28.

Marshall, S.A. 1987. Systematics of Bitheca, a new genus of new world Sphaeroceridae (Diptera). Systematic Entomology 12(3): 355-80.

Reader, R.J. 1980. Effects of nitrogen fertilizer, shade, and the removal of new growth on longevity of overwintering bog ericad leaves. Canadian Journal of Botany 58 (16): 1737-43.

Reader, R.J. 1982. Variation in the flowering date of transplanted ericaceous shrubs in relation to their flowering season. Journal of Biogeography: 397-410.

Reader, R.J. 1983. Modelling geographic variation in the timing of shoot extension by ericaceous shrubs. Canadian Journal of Botany 61(7): 2032-7.

Reader, R.J. 1983. Using heatsum models to account for geographic variation in the floral phenology of two ericaceous shrubs. Journal of Biogeography: 47-64.

Rennie, F.E. 1980. Interpretive evaluation: An applied methodology for self-guided trails. Interpretive Evaluation: An Applied Methodology for Self-Guided Trails.

Tschaplinski, T.J., and T.J. Blake. 1989. Water relations, photosynthetic capacity, and root/shoot partitioning of photosynthate as determinants of productivity in hybrid poplar. Canadian Journal of Botany 67(6): 1689-97.

Tschaplinski, T.J., and T.J. Blake. 1989. Water-stress tolerance and late-season organic solute accumulation in hybrid poplar. Canadian Journal of Botany 67(6): 1681-8.

Vanderburgh, D.J., and R.C. Anderson. 1987. Preliminary observations on seasonal changes in prevalence and intensity of Cosmocercoides variabilis (Nematoda: Cosmocercoidea) in Bufo americanus (Amphibia). Canadian Journal of Zoology 65 (7): 1666-7.

Vanderburgh, D.J., and R.C. Anderson.  1987. Seasonal changes in prevalence and intensity of Cosmocercoides dukae (Nematoda: Cosmocercoidea) in Deroceras laeve (mollusca). Canadian Journal of Zoology 65(7): 1662-5

Watson, A.P. 1982. The design of self-guilding, interpretative, nature trails accessible to the disabled. Arboricultural Journal 6(4): 287-93.

Wetzel, S., C. Demmers, and J.S. Greenwood. 1989. Seasonally fluctuating bark proteins are a potential form of nitrogen storage in three temperate hardwoods. Planta 178 (3): 275-81.

Wetzel, S., C. Demmers, and J.S. Greenwood.  1989. Spherical organelles, analogous to seed protein bodies, fluctuate seasonally in parenchymatous cells of hardwoods. Canadian Journal of Botany 67(12): 3439-45.

Wetzel, S., and J.S. Greenwood. 1989. Proteins as a potential nitrogen storage compound in bark and leaves of several softwoods. Trees 3(3): 149-53.

Wong, P.L., and R.C. Anderson. 1987. Development of Syncuaria squamata (Linstow, 1883) (Nematoda: Acuarioidea) in ostracods (Ostracoda) and double-crested cormorants (Phalacrocorax auritus auritus). Canadian Journal of Zoology 65(10): 2524-31. 

Artsob, H., R. Wright, L. Shipp, L. Spence, and C. Th'ng. 1978. California encephalitis virus activity in mosquitoes and horses in southern Ontario, 1975. Canadian Journal of Microbiology 24 (12): 1544-7.

Baker, M.R. 1979. Seasonal population changes in Rhabdias ranae Walton, 1929 (Nematoda: Rhabdiasidae) in Rana sylvatica of Ontario. Canadian Journal of Zoology 57 (1): 179-83.

Bazinet, N.L., and M.K. Sears. 1979. Factors affecting the mortality of leafminers Argyresthia thuiella and Pulicalvaria thujaella (Lepidoptera: Yponomeutidae and Gelechiidae) on eastern white cedar, in Ontario. The Canadian Entomologist 111 (11): 1299-306.

Gillet, C., R. Billard, and B. Breton. 1977. Effets de la temperature sur le taux de gonadotropine plasmatique et la spermatogenese du poisson rouge carassius auratus. Canadian Journal of Zoology 55(1): 242-5.

Middleton, A.L.A. 1979. Influence of age and habitat on reproduction by the american goldfinch. Ecology 60:418-432.

Reader, R. 1979. Impact of leaf-feeding insects on three bog ericads. Canadian Journal of Botany 57 (20): 2107-12.

Schwert, D.P. 1977. The first North American record of Aporrectodea icterica (Savigny, 1826) (Oligochaeta, Lumbricidae), with observations on the colonization of exotic earthworm species in Canada. Canadian Journal of Zoology 55 (1): 245-8.

Smith, D.W., and G.C. Bowes. 1974. Loss of some elements in fly-ash during old-field burns in southern Ontario. Canadian Journal of Soil Science 54 (2): 215-24.

Uhazy, L.S. 1977. Development of Philometroides huronensis (Nematoda: Dracunculoidea) in the intermediate and definitive hosts. Canadian Journal of Zoology 55 (2): 265-73.

Waldron, G.E., R.J. Hilton, and J.D. Ambrose. 1976. Evidence of microevolution in an escaped pear population. Canadian Journal of Botany 54 (24): 2857-67.