Volume 4, Number1, Winter 1997/1998
Information on the history and mandate of the Centre
Lists of "elements of biodiversity" including Committee on the Status of Endangered Wildlife in Canada (COSEWIC), MNR and NHIC ranks.
• Database Summary (summary of our database holdings).
• Database Information (documentation on the structure of our databases, and data standards used).
• Data Use Protocol (discusses data-sensitivity issues and how information obtained from the NHIC should be handled).
• Natural Areas Query by NTS Map Number (generates a list of natural areas in our database for a user-selected map number).
• Rare Species Query by County (generates a species list for a county based on records in our database).
Electronic versions of our previous 7 newsletters.
Links to other data centres, heritage programs or other sites dealing with biodiversity conservation
Staff list with e-mail addresses and a form for submitting and/or requesting data.
The main purpose of the web page is to provide clients easy access to commonly-requested information, allowing the NHIC staff to concentrate on enhancing the databases.
![]() Golden Bean (Thermopsis rhombifolia) , near Minaki, Kenora District. |
Some interesting non-native additions to the Ontario flora (i.e. species not listed in John Morton and Joan Venn's 1990 "A Checklist of the Flora of Ontario: Vascular Plants") have been made in recent years. Bill Crins found a population of Turquoise Berry (Ampelopsis brevipedunculata, Vitaceae) in Halton Regional Municipality, and Sean Blaney found Hyssop-leaved Loosestrife (Lythrum hyssopifolia, Lythracea) at the edge of an agricultural field near Belleville, Hastings County. Dan Brunton recently reported in Trail & Landscape the discovery of Woodland Angelica (Angelica sylvestris, Apiaceae) in the Ottawa area, and Paul Catling and others in a recent issue of Canadian Field-Naturalist document the occurrence and spread of Autumn Olive (Elaeagnus umbellata, Elaeagnaceae) in the province. Some of these species have the potential to become problem weeds, at least locally, in Ontario.
![]() Prairie Spikemoss (Selaginella densa) , near Minaki, Kenora District. |
References
Austen, M.J.W. and M.D. Cadman. 1994.
The Status of the Prairie Warbler (Dendroica discolor) in Ontario.
Ontario Ministry of Natural Resources, Terrestrial Ecosystems Branch, North York.
Iv + 31 pp.
Harris, C.G. 1997.
A Survey of the Prairie Warbler (Dendroica discolor)in Southeastern Georgian Bay in
1997. (Draft).
Ontario Ministry of Natural Resources, Natural Heritage Information Centre,
Peterborough. 13 pp. + appendices.
Lambert, A.B. and R.B.H. Smith. 1984. The Status of the Prairie Warbler (Dendroica
discolor) in Canada.
Final Report (Contract W-2), Nongame Program, Wildlife Branch, Ontario Ministry of
Natural Resources, Toronto. Viii + 318 pp.
Simpson, R. and H. Simpson. 1973.
The Biology of Blackstone Harbour-Moon Island Provincial Park Reserve. Parry Sound
District, Ontario. Ontario Ministry of Natural Resources, Division of Parks, Parks
Planning Branch, Environmental Planning Section. 156 pp.
Cove Dunes develop in the rocky coves of irregular coastlines, and include a narrow crescent-shaped beach and a small transverse foredune. The foredune usually has small parabolic dunes and blowouts, with individual dunes normally reaching several metres in height.
![]() American Dune Grass (Leymus mollis) , a characteristic species of Lake Superior dunes and sandy arctic shorelines. |
![]() Dune grassland along Lake Superior dominated by Marram Grass (Ammophila breviligulata). |
![]() Trailing Wild Bean(Strophostyles helvula) ,restricted in Ontario to sandy shores anddunes along Lakes Erie and Ontario |
![]() Hop-tree (Ptelea trifoliata), a shrub found in Lake Erie dunes. |
References
Anonymous. 1995. Rare communities of Ontario: Great Lakes Coastal Meadow Marshes.
Natural Heritage Information Centre Newsletter, 2(2):4-5.
Bakowsky, W.D. 1996. Natural Heritage Resources of Ontario: Vegetation communities of
Southern Ontario. Natural Heritage Information Centre, Ontario Ministry of Natural
Resources, Peterborough, Ontario, 21 pp.
Breitung, A.J. 1957. Vascular flora on the sand dunes at Constance Bay, Ontario.
Le Naturaliste Canadien 34(3-4):79-87.
Davidson, R.J. 1990. Protecting and managing Great Lakes coastal dunes in Ontario.
Proceedings Canadian Symposium on Coastal Sand Dunes.
Kor, P. 1997. Personal communication, dune geomorphology.
Martini, I.P. 1981. Coastal dunes of Ontario: Distribution and geomorphology.
Geographie physique et Quaternaire 25(2):219-229.
Noble, T. 1989. Life Science Inventory: Sable Islands Provincial Nature Reserve, Ontario
Ministry of Natural Resources.
Oldham, M.J. 1997. Personal communication, floral and faunal information.
Sutherland, D.A. 1997. Personal communication, faunal information.
W.D. Bakowsky1) Identify landform features. Landform or physiographic features are identified, using the best digital physiographic data set available for each ecological site district. (e.g., Noble 1983)
2) Identify vegetation features. In site districts 5E-7 and 5E-8, MNR's Forest Resource Inventory (FRI) mapping at 1:10,000 scale is used as the digital vegetation layer. In site districts where digital FRI data are not available, satellite imagery (LANDSAT) data are used as the vegetation layer. Each vegetation type (which, in the case of FRI data, means each "working group", as identified by dominant tree species and one of three age classes: young, middle, or old) is overlaid on each landform type in each site district, and each landform-vegetation unit becomes an individual polygon.
3) Assess existing representation. Landform-vegetation features that are found in protective zones within provincial parks, conservation reserves and national parks are considered protected, and are subtracted from the analysis.
4) Overlay disturbance layer. Areas of human disturbance, such as roads, utility lines, logging, and residential, agricultural and industrial development, are subtracted from the analysis.
5) Identify "best" representative areas. Using GIS, aggregations of contiguous, unrepresented landform-vegetation features are selected. The cluster that contains the greatest number of unrepresented features (i.e., the most "ecologically diverse" area) is chosen as the first "candidate protected area". At this stage, input is sought from MNR field office biologists and foresters regarding recent disturbances to the candidate area, and in some cases the selected site is deemed too disturbed to be protected and a different candidate is sought to protect the features of the site. If a candidate is deemed viable, then each landform-vegetation feature found in the candidate is subtracted from the list of features that still need to be represented. This iterative process is run until all landform-vegetation types are represented in undisturbed candidate protected areas.
6) Look for unrepresented landform-vegetation types that occur only in disturbed areas. Some landform-vegetation types may occur only in disturbed areas. Where possible, additional candidate protected areas may be delineated, or boundaries of existing candidates may be adjusted, to incorporate these unrepresented features.
7) Delineate and refine candidate area boundaries. Using contour and hydrological information, as well as special features data (such as locations of rare species), candidate area boundaries are delineated.
8) Re-run step 5 to identify alternate candidate areas for protection. Because the Round Table may decide that a given candidate area is unsuitable for protection, a set of alternate sites that would also represent the landform-vegetation diversity of the site district is provided as an option
9) Re-run step 5 for Crown Land only. Because the new parks and protected areas in the "Lands for Life" process are to be created on Crown Land, the analysis may also be run for Crown Land only, in order to determine what landform-vegetation representation can be found on Crown Land and the locations of the "best" sites, using the same methodology that is applied to the site district as a whole.
Protected areas selection will also incorporate areas of geological significance, as identified in an earth science gap analysis co-ordinated by Phil Kor, Conservation Geologist of the MNR Natural Heritage Section.
References
MNR (Ministry of Natural Resources). 1997. Lands for Life. An Introduction to Regional
Land Use Strategies. Ontario Ministry of Natural Resources, Toronto. 9 pp.
Noble, T.W. 1983. Biophysiographic Analysis. Site Region 5E, Algonquin Region. Ontario
Ministry of Natural Resources. 107 pp. + 2 appendices1) the presence of exceptional diversity of natural communities and conservative plant species (i.e., species that display a high degree of fidelity to specific habitats) (Herman et al. 1996; Oldham et al. 1995; Wilhelm and Masters 1995);
2) the presence of globally and provincially rare vegetation communities, flora and fauna (as ranked in NHIC lists); and
3) the presence of unique or high quality occurrences of natural communities. Conservation concerns such as human disturbance, as well as the level of protection, contributed to the recommended conservation options for each site.The paper will be published in the proceedings of the Leading Edge '97 conference. However, in addition to seeking peer review, the authors plan to harmonize the site prioritisation methodology with the revised The Nature Conservancy (TNC) element occurrence data standards (TNC 1997) and with the most current concepts used by TNC in site conservation planning (TNC 1996), and to produce a more extensive report on their work in 1998. Similar exercises are planned for other ecological themes, in order to contribute to the Ontario Parks/NCC agreement.
References
Jalava, J.V. and H. Godschalk. 1997. Priority Site for Conservation Action in the
Niagara Escarpment Biosphere Reserve. Papers presented at the Leading Edge '97: The
Edge and the Point Conference, 17 October 1997, Burlington, Ontario. 9 pp.
Herman, K.D., L.A. Masters, M.R. Penskar, A.A. Reznicek, G.S. Wilhelm and W.W. Brodowicz.
1996. Floristic Quality Assessment with Wetland Categories and Computer Applications
for the State of Michigan. Michigan Department of Natural Resources, Wildlife
Division, Natural Heritage Program, Lansing. 21 pp. + appendices.
Oldham, M.J., W.D. Bakowsky and D.A. Sutherland. 1995. Floristic Quality Assessment System
for Southern Ontario. Natural Heritage Information Centre, Ontario Ministry of Natural
Resources, Peterborough. 69 pp.
Parks Ontario. 1995. Potential Sites for Action 1995-96, Land Acquisition Partnership
Agreement. Ontario Ministry of Natural Resources. Manuscript. 4 pp.
Riley, J.L., J.V. Jalava and S. Varga. 1996. [Draft] Ecological Survey of the Niagara
Escarpment Biosphere Reserve. Volume I: Significant Natural Areas. Volume II: Technical
Appendices. Ontario Ministry of Natural Resources, Southern Region, Aurora. Open File
Site Report 9601. v + 629 pp., vii + 310 pp.
Wilhelm, G.S. and L.A. Masters. 1995. Floristic Quality Assessment in the Chicago Region and
Application Computer Programs. The Morton Arboretum, Lisle, Illinois. 65 pp.
TNC (The Nature Conservancy). 1996. Site Conservation Planning: Summary Document. Site
Conservation Planning Implementation Team. The Nature Conservancy, Arlington, Virginia.
Manuscript. 22 pp.
TNC (The Nature Conservancy). 1997. (Draft) Element Occurrence Data Standard. Part 1. The
Nature Conservancy, in co-operation with the Network of Natural Heritage Programs and
Conservation Data Centers. The Nature Conservancy, Arlington, Virginia. Manuscript. 140
pp.
References
Snell and Cecile Environmental Research. 1997. Great Lakes Wetlands Biomonitoring
Project: Initial Development of a Framework for Monitoring Priority Coastal Marsh
Health and Integrity. Volume 1: Final Report; Volume 2: Additional Materials. Presented
to Environment Canada, Environmental Conservation Branch, Downsview, by, Nature
Conservancy of Canada, Toronto.Winifred (Cairns) Wake has summarized a colossal amount of information on over 600 sites of interest to naturalists throughout Ontario. The book is well researched, well laid out, and very useful, particularly for a naturalist traveling to an unfamiliar part of the province. "A Nature Guide to Ontario" is a complete rewrite of "A Naturalist's Guide to Ontario", which was edited by Bill Judd and Murray Speirs, and published in 1964. Winifred Wake and the Federation of Ontario Naturalists are to be congratulated for producing this fine publication which will guide the next generation of Ontario's naturalists. The book sells for $19.95 and can be found in many Ontario bookstores.
Crowder, A., K.E.J. Topping and J.C. Topping. 1997. Plants of the Kingston Region: 1996. Fowler Herbarium, Queen's University, Kingston, Ontario. 123 pp.
• This annotated checklist of vascular plants covers a large area of southeastern Ontario, centered on Kingston. It is an extensive update of the 1970 checklist by Beschel, Garwood, Hainault, Macdonald, van der Kloet, and Zavitz. For each species, information is provided on scientific name (following Morton and Venn's 1990 Ontario checklist), common name, introduced or native status, whether or not there is a local specimen in the Queen's herbarium (QK), local status and habitat. This booklet will be useful for botanists and naturalists in southeastern Ontario. "Plants of the Kingston Region" is available by mail from John Topping, Manager, Department of Biology, Queen's University, Kingston, Ontario K7L 3N6 (phone 613-545-6137, email toppingj@biology.queensu.ca) for $14.00.
Bruce-Grey Plant Committee. 1997. A Guide to the Orchids of Bruce and Grey Counties, Ontario. Stan Brown Printers Limited, Owen Sound, Ontario. 106 pp.
• The Bruce Peninsula is a favourite location for orchid lovers from throughout North America. This book covers the 46 orchid species (77% of Ontario's orchids) known from these two counties; 44 species occur on the Bruce Peninsula alone. A key is provided as well as descriptions and illustrations for each species. Colour photographs by Donald Gunn add to the attractiveness and usefulness of the book, as does a chart of flowering times and a glossary. The book is available for $17.00 from the Bruce-Grey Plant Committee, c/o Owen Sound Field-Naturalists, Box 401, Owen Sound, Ontario N4K 5P7.
Reddoch, J.M. and A.H. Reddoch. 1997. The orchids in the Ottawa District: floristics, phytogeography, population studies and historical review. Canadian Field Naturalist 111(1):1-184.
• An entire special issue of Canadian Field-Naturalist is devoted to this superb treatment of the orchids of the Ottawa District. Orchids have long been a favourite group among botanists and naturalists, and the Reddochs have provided a detailed and thorough article which will have utility far beyond the Ottawa District. Forty-four species are treated with sections on description, blooming period, colony sizes, current status, distribution, habitats, history, and other topics. Each species account includes one or more illustrations as well as an Ottawa area distribution map. Copies of this issue of Canadian Field-Naturalist can be purchased for $12.50 from William J. Cody, Business Manager, P.O. Box 35069, Westgate P.O., Ottawa, Ontario K1Z 1A2.
Waldron, G.E. 1997. The Tree Book: Tree Species and Restoration Guide for the Windsor - Essex Region. Project Green Inc., Windsor, Ontario. 219 pp.
• Gerry Waldron has produced a book of great value to those wishing to propagate and grow native tree species. Although the book is written for the Essex County area, many of the 71 species covered are widely distributed in southern Ontario, so the book will have use beyond the borders of Essex County. Each species account includes sections on Description; Quick Check; Wood; Habitat; Wildlife Value; Propagation, Culture and Use; Problems; and Remarks. Also included are sketches of leaves, twigs, fruit and tree habit, an Essex County distribution map, and measurements on the largest Ontario specimen. Several useful introductory chapters precede the species accounts. The book is available for $45.00 (including shipping and handling) from the Essex County Field Naturalist's Club, P.O. Box 23011, Devonshire Mall, Windsor, Ontario N8X 5B5. All profits support the activities of the Natural Habitat Restoration Program.
Flora of North America Editorial Committee. 1997. Flora of North America North of Mexico, Volume 3, Magnoliophyta: Magnoliidae and Hamamelidae. Oxford University Press, New York. 590 pp.
• The long-awaited third volume of the Flora of North America project is now in print. This volume covers important Ontario families such as the buttercup family (Ranunculaceae), nettle family (Urticaceae), oak family (Fagaceae), hickory and walnut family (Juglandaceae), and birch family (Betulaceae). Descriptions, taxonomic keys, and range maps can be found for all species, subspecies and varieties occurring in North America, as well as line drawings of selected species. Volume three is available for U.S. $85.00 from Oxford University Press, 198 Madison Avenue, New York, New York 10016.
Newmaster, S.G., A.G. Harris and L.J. Kershaw. 1997. Wetland Plants of Ontario. Lone Pine Publishing, Edmonton, Alberta. 240 pp.
• Persons wishing to identify common wetland plants in Ontario will find this a very helpful book. More than 475 species of wetland plants are described and most are illustrated by colour photographs. The fact that some bryophytes, aquatics, sedges, rushes, and grasses are included and illustrated make this publication particularly useful, since these groups are often poorly covered or not covered at all in many field guides. Copies are available for $24.95 in many Ontario bookstores.
• Ontario Insects, now in its third volume, is an informative and attractive publication of the Toronto Entomologists' Association (TEA), currently edited by Matt Holder (now working on contract with the NHIC) and Phil Lester. Although Toronto based, the TEA is a province-wide group of mostly amateur entomologists, with a primary focus on butterflies, but an increasing interest in moths, dragonflies and damselflies (Odonata), and other insect groups. In addition to Ontario Insects, published tri-annually, the TEA also publishes an annual summary of Ontario Lepidoptera, which in recent years has included information on more than just butterflies. Membership in the TEA is $20 per individual, $10 for students, and $25 per family. Dues can be sent to Alan J. Hanks, Treasurer, 34 Seaton Drive, Aurora, Ontario L4G 2K1.
Catling, P.M. and V.R. Brownell. 1997. Damselflies (Zygoptera) in Ontario from 1900 to 1952: An atlas of E. M. Walker's distributional data for monitoring, and biodiversity and biogeography studies. Privately published. 10 pages plus distribution maps.
• Paul Catling and Vivian Brownell have compiled a vast amount of historical information on Ontario damselflies from the publications of Edmund Walker, author of the classic three volume work on "The Odonata of Canada and Alaska" and many other publications on Canadian dragonflies and damselflies. The 1900 to 1952 distribution of 43 damselfly taxa is plotted on dot distribution maps, providing the basis for evaluation of recent changes in status and distribution. With the increasing interest in Odonata among Ontario naturalists, this publication will become a valuable resource. Copies can be obtained for $10 from the authors at 2326 Scrivens Drive, R.R. 3, Metcalfe, Ontario K0A 2P0.
Marshall, S. 1997. Insects of Algonquin Provincial Park. Friends of Algonquin Park, Whitney, Ontario.
• Steve Marshall of the University of Guelph has produced a beautifully-illustrated booklet on Algonquin Park insects. Anyone with even a casual interest in insects will enjoy this publication which contains a wealth of information on the insects of this part of Ontario. The more than 200 excellent colour photos alone are well worth the purchase price. Copies are available for $2.95 from the Friends of Algonquin Park, Box 248, Whitney, Ontario K0J 2M0.
Harding, J.H. 1997. Amphibians and Reptiles of the Great Lakes Region. University of Michigan Press, Ann Arbor, Michigan. 378 pp.
• Beautiful colour photographs are one noteworthy feature of this excellent new book, which covers all Ontario amphibian and reptile species. Information on each species is provided under the following headings: description, confusing species, distribution and status, habitat and ecology, reproduction and growth, and conservation. Shaded distribution maps show the range of each species in the Great Lakes area. The paperback edition is available for U.S. $19.95 from the University of Michigan Press, P.O. Box 1104, Ann Arbor, Michigan 48106, U.S.A.
Christie, P. 1997. Reptiles and Amphibians of Prince Edward County, Ontario. Natural Heritage/Natural History Inc., P.O. Box 95, Station 0, Toronto, Ontario M4A 2M8. 143 pp.
• Peter Christie's guidebook covers 30 amphibian and reptile species reported from Prince Edward County in southeastern Ontario. The book is compiled from an analysis of over 1,000 records from Prince Edward County, most of which were contributed by the Ontario Herpetofaunal Summary database via the Natural Heritage Information Centre. Each species account contains a sketch of the animal, a map showing the distribution of records from the county, plus sections on description and distribution. This book will be a useful reference for naturalists visiting Prince Edward County as well as those having a general interest in the province's amphibians and reptiles.
Green, D.M., editor. 1997. Amphibians in Decline: Canadian Studies of a Global Problem. Herpetological Conservation Number 1, Society for the Study of Amphibians and Reptiles, St. Louis, Missouri, 338 pp.
• "Amphibians in Decline" is the culmination of several years work by the Canadian Declining Amphibian Populations Working Group (DAPCAN) in addressing the amphibian decline question in Canada. The book contains 29 chapters on amphibian conservation and decline topics, as well as an appendix on "Checklist and current status of Canadian amphibians". This book belongs on the bookshelf of any naturalist or biologist with an interest in Canadian herpetology. Copies can be obtained from the Publications Secretary, Society for the Study of Amphibians and Reptiles, Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, Missouri 63103-2010, U.S.A. for CAN $55.00 plus shipping and handling.
[The following publications, authored by NHIC staff, have been prepared since the previous listings (NHIC Newsletter 2(1):10 and 3(1):9).]Blaney, C.S., M.J. Oldham and A.A. Reznicek. 1997. Hyssop-leaved Loosestrife, Lythrum hyssopifolia L. (Lythraceae),
new to Canada. Canadian Field-Naturalist 111(4):664-665.Catling, P.M., M.J. Oldham, D.A. Sutherland, V.R. Brownell and B.M.H. Larson. 1997. The recent spread of Autumn-Olive,Elaeagnus umbellata, into southern Ontario and its current status. Canadian Field-Naturalist 111(3):376-380.Harris, A. and M.J. Oldham. 1996. New plants for Thunder Bay District, Ontario. Field Botanists of Ontario Newsletter9(2):6-10King, R.B., M.J. Oldham, W.F. Weller and D. Wynn. 1997. Historic and current amphibian and reptile distributions in the islandregion of western Lake Erie. American Midland Naturalist 138:153-173.Jalava, J.V. 1996. Sooty Tern on Lake Ontario. Birders Journal 5(5):234-235.
Jalava, J.V. 1996. Provincial Life Science Areas of Natural and Scientific Interest in Ecological Site Regions 6 and 7: Summaryof Locations, Sizes and Evaluation Reports. Natural Heritage Information Centre, Peterborough. iv + 41 ppJalava, J.V. and H. Godschalk. 1997. Priority Sites for Conservation Action in the Niagara Escarpment Biosphere Reserve.Paper presented at the Leading Edge '97: The Edge and the Point Conference, 17 October 1997, Burlington, Ontario. 9 pp.Jalava, J.V. and M.J. Oldham. 1996. Detectives of Biodiversity. Aski 21(1):17.
Oldham, M.J. 1996. A day on Middle Sister Island. The Egret 11(3):1, 4-8.
Oldham, M.J. 1996. Natural Heritage Resources of Ontario: Rare Vascular Plants. Second edition. Natural Heritage InformationCentre, Ontario Ministry of Natural Resources, Peterborough. 53 pp.Oldham, M.J. 1996. Natural Heritage Resources of Ontario: Amphibians & Reptiles. Second edition. Natural HeritageInformation Centre, Ontario Ministry of Natural Resources, Peterborough. 10 pp.
Oldham, M.J. 1996. Status and Conservation of Ontario Reptiles. Paper presented at the 1st meeting of the Working Group onAmphibian and Reptile Conservation in Canada (WGARCC), 6 October 1996, University of Calgary, Alberta. 4 pp.
Oldham, M.J. 1997. County distribution of southern Ontario vascular plants. Field Botanists of Ontario (FBO) Newsletter10(1):7-8
Oldham, M.J. 1997. Additions to the vascular flora of the Hamilton-Wentworth Regional Municipality, Ontario. Field Botanistsof Ontario (FBO) Newsletter 10(1):8-11.
Oldham, M.J. 1997. Bibliography of Ontario Endangered and Threatened Plant Species. Natural Heritage Information Centre,Ontario Ministry of Natural Resources, Peterborough. 34 pp.
Oldham, M.J. 1997. Potential additions to the native vascular flora of Ontario. Field Botanists of Ontario (FBO) Newsletter10(2):4-11.
Oldham, M.J. 1997. Obituary - William G. Stewart. Field Botanists of Ontario (FBO) Newsletter 10(2):11.
Oldham, M.J. 1997. Correct authorship for the scientific name of Lakeside Daisy, Hymenoxys herbacea. Field Botanists ofOntario (FBO) Newsletter 10(3):11.
Oldham, M.J. and W.D. Bakowsky. 1996. An Ecological Evaluation of the Gallagher Tradeland, Gunflint Lake, Thunder BayDistrict, Ontario. Natural Heritage Information Centre, Ontario Ministry of Natural Resources, Peterborough. 31 pp.
Oldham, M.J. and M. Zinck. 1997. New and noteworthy records from the vascular flora of Nova Scotia, Canada. CanadianField-Naturalist 111(3):393-398.
Riley, J.L., J.V. Jalava, M.J. Oldham and H.G. Godschalk. 1997. Natural Heritage Resources of Ontario: Bibliography ofLife Science Areas of Natural and Scientific Interest in Ecological Site Regions 6E and 7E, Southern Ontario. First
Edition. Ontario Ministry of Natural Resources, Natural Heritage Information Centre, Peterborough. 156 pp. + 3 maps.
Weller, W.F., M.J. Oldham, F.W. Schueler and M.E. Obbard. Undated [1996]. Report of the Historical Database Committee:Report of the Historical Population Trends Subgroup, Canadian Working Group - Declines in Canadian
Amphibians Identified Using Historical Distributional Data. Pages 19-21, in "Proceedings of the Fourth Annual Meeting
of the Task Force on Declining Amphibian Populations in Canada", compiled by B. Preston and R. Larche,
Manitoba Museum of Man and Nature, Winnipeg.