Paul Keddy

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Paul Anthony Keddy
Personal details
Born(1953-05-29)29 May 1953
London, Ontario
Died26 December 2023(2023-12-26) (aged 70)

Paul Anthony Keddy (born May 29, 1953 in London, Ontario) was a Canadian ecologist. He studied plant population ecology and community ecology in wetlands and many other habitats in eastern Canada and Louisiana, United States.

Contents

He began his formal training in biology in 1969 at York University in Toronto and finished his PhD at Dalhousie University with Evelyn C. Pielou. He was a professor of biology for 30 years, first at the University of Guelph (1978–1982), then the University of Ottawa (1982–1999) and then held the Edward G. Schlieder Endowed Chair for Environmental Studies at Southeastern Louisiana University (1999 to 2007). He published over 150 scholarly articles, wrote seven books, and edited two books. He was designated a Highly Cited Researcher by Clarivate (formerly the Institute for Scientific Information). [1] , He received the National Wetlands Award for Science Research in 2007 [2] from the Environmental Law Institute. Although he worked on many types of plant communities and a broad array of ecological questions, the focus of his work was on the principles that organize plant communities, with particular emphasis upon wetlands.

Books

Synthesis was one of Paul Keddy's major contributions to wetland ecology and plant ecology. His first book, Competition, [3] [4] won both the George Lawson Medal [5] of the Canadian Botanical Association and the Henry Allan Gleason Award [6] of the New York Botanical Garden. A second edition of Competition was published in 2001. [7]

A major area of research for Keddy, ecological assembly rules (the constraints (rules) on community formation and maintenance (assembly), was the topic of his co-edited synthesis Ecological Assembly Rules: Perspectives, Advances, Retreats. [8]

In 2006 Keddy was honoured by the Society of Wetland Scientists with the Merit Award for Wetland Ecology: Principles and Conservation. [9] A new edition of Wetland Ecology [10] was published in 2010. [11] This textbook is used in courses around the world. In 2005 he focused on the world's largest wetlands which had not previously been described, ranked or compared, and co-edited The World's Largest Wetlands: Ecology and Conservation. [12]

In 2007, he published Plants and Vegetation: Origins, Processes, Consequences, [13] a textbook on plant ecology. [14]

In addition to scientific writing, Keddy prepared guides to the natural history of two regions of North America. For the State of Louisiana he authored Water, Earth, Fire: Louisiana's Natural Heritage. [15] For Lanark County, Ontario, he wrote Earth, Water, Fire: An Ecological Profile of Lanark County. [16] For this contribution Keddy was given a Champion of Nature Award (2008) by the Mississippi Valley Field Naturalists [17] and the Lanark County Award of Excellence—Heritage and Ecology by the county (2009). [18]

Related Research Articles

<span class="mw-page-title-main">Swamp</span> A forested wetland

A swamp is a forested wetland. Swamps are considered to be transition zones because both land and water play a role in creating this environment. Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations. Saltwater swamps are found along tropical and subtropical coastlines. Some swamps have hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodic inundation or soil saturation. The two main types of swamp are "true" or swamp forests and "transitional" or shrub swamps. In the boreal regions of Canada, the word swamp is colloquially used for what is more formally termed a bog, fen, or muskeg. Some of the world's largest swamps are found along major rivers such as the Amazon, the Mississippi, and the Congo.

<span class="mw-page-title-main">Bog</span> Type of wetland with peat-rich soil

A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials – often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg; alkaline mires are called fens. A baygall is another type of bog found in the forest of the Gulf Coast states in the United States. They are often covered in heath or heather shrubs rooted in the sphagnum moss and peat. The gradual accumulation of decayed plant material in a bog functions as a carbon sink.

<span class="mw-page-title-main">Marsh</span> Low-lying and seasonally waterlogged land

A marsh is — according to ecological definitions — a wetland that is dominated by herbaceous rather than woody plant species. More in general, the word can be used for any low-lying and seasonally waterlogged terrain. In Europe and in agricultural literature low-lying meadows that require draining and embanked polderlands are also referred to as marshes or marshland.

<span class="mw-page-title-main">Thousand Islands – Frontenac Arch</span> Geologic region in North America

The Thousand Islands – Frontenac Arch region or the Frontenac Axis is an exposed strip of Precambrian rock in Canada and the United States that links the Canadian Shield from Algonquin Park with the Adirondack Mountain region in New York, an extension of the Laurentian mountains of Québec. The Algonquin to Adirondacks region, which includes the Frontenac Axis or Arch, is a critical linkage for biodiversity and resilience, and one with important conservation potential. The axis separates the St. Lawrence Lowlands and the Great Lakes Lowlands. It has many distinctive plant and animal species. It is one of four ecoregions of the Mixedwood Plains.

<span class="mw-page-title-main">Pearl River (Mississippi–Louisiana)</span> River in Mississippi and Louisiana, United States

The Pearl River is a river in the U.S. states of Mississippi and Louisiana. It forms in Neshoba County, Mississippi from the confluence of Nanih Waiya and Tallahaga creeks, and has a meander length of 444 miles (715 km). The lower part of the river forms part of the boundary between Mississippi and Louisiana.

<span class="mw-page-title-main">Mississippi River (Ontario)</span> Tributary of the Ottawa River in Ontario, Canada

The Mississippi River is a tributary of the Ottawa River in Eastern Ontario, Canada which has no relation with the Mississippi River in the United States. It is 200 kilometres (120 mi) in length from its source at Mackavoy Lake, has a drainage area of 4,450 square kilometres (1,720 sq mi), and has a mean discharge of 40 cubic metres per second (1,400 cu ft/s). There are more than 250 lakes in the watershed.

<span class="mw-page-title-main">Littoral zone</span> Part of a sea, lake, or river that is close to the shore

The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark, to coastal areas that are permanently submerged — known as the foreshore — and the terms are often used interchangeably. However, the geographical meaning of littoral zone extends well beyond the intertidal zone to include all neritic waters within the bounds of continental shelves.

<span class="mw-page-title-main">Lanark County</span> County in Ontario, Canada

Lanark County is a county located in the Canadian province of Ontario. Its county seat is Perth, which was first settled in 1816.

<span class="mw-page-title-main">Drummond/North Elmsley</span> Township in Ontario, Canada

Drummond/North Elmsley is a township in eastern Ontario, Canada in Lanark County. It is situated on the north shore of the Rideau River between the town of Perth and the town of Smiths Falls. It is a predominantly rural municipality. The township offices are located in the hamlet of Port Elmsley.

Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They include lakes, ponds, rivers, streams, springs, bogs, and wetlands. They can be contrasted with marine ecosystems, which have a larger salt content. Freshwater habitats can be classified by different factors, including temperature, light penetration, nutrients, and vegetation. There are three basic types of freshwater ecosystems: Lentic, lotic and wetlands. Freshwater ecosystems contain 41% of the world's known fish species.

<span class="mw-page-title-main">Aquatic ecosystem</span> Ecosystem in a body of water

An aquatic ecosystem is an ecosystem found in and around a body of water, in contrast to land-based terrestrial ecosystems. Aquatic ecosystems contain communities of organisms—aquatic life—that are dependent on each other and on their environment. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems. Freshwater ecosystems may be lentic ; lotic ; and wetlands.

Sir Harry Godwin, FRS was a prominent English botanist and ecologist of the 20th century. He is considered to be an influential peatland scientist, who coined the phrase "peat archives" in 1981. He had a long association with Clare College, Cambridge.

<span class="mw-page-title-main">Wetlands of Louisiana</span>

The wetlands of Louisiana are water-saturated coastal and swamp regions of southern Louisiana, often called 'Bayou'.

<i>Lobelia dortmanna</i> Species of aquatic plant

Lobelia dortmanna, Dortmann's cardinalflower or water lobelia, is a species of flowering plant in the bellflower family Campanulaceae. This stoloniferous herbaceous perennial aquatic plant with basal leaf-rosettes and flower stalks grows to 0.7–2 m (2.3–6.6 ft) tall. The flowers are 1–2 cm long, with a five-lobed white to pale pink or pale blue corolla, produced in groups of one to ten on an erect raceme held above the water surface. The fruit is a capsule 5–10 mm long and 3–5 mm wide, containing numerous small seeds.

<span class="mw-page-title-main">Westmeath Provincial Park</span> Provincial Park in Westmeath, Ontario

Westmeath Provincial Park is a provincial park on the Ottawa River in Renfrew County, Ontario, Canada. Located on the section of the river known as Bellows Bay, it features a long sandy beach and an active sandspit. It is one of the most pristine sand dune and wetland complexes along the southern Ottawa River.

<i>Pontederia cordata</i> Species of aquatic plant

Pontederia cordata, common name pickerelweed (USA) or pickerel weed (UK), is a monocotyledonous aquatic plant native to the American continents. It grows in a variety of wetlands, including pond and lake margins across an extremely large range from eastern Canada south to Argentina. A few examples include northern rivers, the Everglades and Louisiana.

<i>Sparganium eurycarpum</i> Species of flowering plant

Sparganium eurycarpum is a species of bur-reed known by the common names broadfruit bur-reed and giant bur-reed. It is native to wetlands in Eurasia and North America. It is a clonal perennial, spreading by below-ground rhizomes. The common name, bur-reed, arises from the distinctive round clusters of fruits that take the form of a mace. It can be distinguished from all other species of bur-reed by the presence of two stigmas.

<span class="mw-page-title-main">Plant ecology</span> The study of effect of the environment on the abundance and distribution of plants

Plant ecology is a subdiscipline of ecology that studies the distribution and abundance of plants, the effects of environmental factors upon the abundance of plants, and the interactions among plants and between plants and other organisms. Examples of these are the distribution of temperate deciduous forests in North America, the effects of drought or flooding upon plant survival, and competition among desert plants for water, or effects of herds of grazing animals upon the composition of grasslands.

<span class="mw-page-title-main">White Lake fen</span>

The White Lake fen is a small wetland on the shore of White Lake in Lanark County, Ontario in Canada. It has been designated both an Area of Natural and Scientific Interest and a Provincially Significant Wetland; it is also listed as a Special Place in Lanark County. Fens are a relatively rare wetland habitat in the region of Lanark County; they can occur on either marble or limestone bedrock. White lake has a granite dome along its north shore, while it spreads over marble bedrock to the south. A number of calcareous fens have developed along the south shore. The largest of these has developed in a long narrow arm of the lake, where it stretches for nearly two kilometers and covers 90 ha.

<span class="mw-page-title-main">Burnt Lands alvar</span>

The Burnt Lands is an alvar between Almonte and Ottawa near Upper Huntley, Ontario, Canada. It probably obtained its name from one of the forest fires that swept the area during early European settlement.

References

  1. Clarivate Highly Cited Researchers
  2. "Homepage | ELI National Wetlands Awards".
  3. Keddy, P.A. 1989. Competition. (Population and Community Biology Series). Chapman & Hall, 202 p.
  4. Sterner, Robert W. (1991). "Review of Competition by Paul A. Keddy". The Quarterly Review of Biology. University of Chicago Press. 66 (2): 225–226. doi:10.1086/417207. ISSN   0033-5770.
  5. "Home". Archived from the original on 11 February 2008. Retrieved 27 June 2008.
  6. http://www.botany.org/awards_grants/detail/gleason.php
  7. Keddy, P.A. 2001. Competition. 2nd edn. Kluwer, 552 p. ISBN   978-1-4020-0229-8
  8. Weiher, E. & Keddy, P. (1999) Ecological Assembly Rules: Perspectives, Advances, Retreats. Cambridge University Press, 430 p. ISBN   978-0-521-65235-3
  9. Keddy, P.A. 2000. Wetland Ecology: Principles and Conservation. Cambridge University Press, 614 p. ISBN   0-521-78367-4 Google books
  10. Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation. Cambridge University Press, 497 p. ISBN   9780521519403
  11. Smardon, Richard (2 April 2014). "Review of Wetland Ecology Principles and Conservation, 2nd edition, by Paul Keddy". Water. MDPI AG. 6 (4): 813–817. doi: 10.3390/w6040813 . ISSN   2073-4441.
  12. Fraser, L.H. & Keddy, P.A. 2005. The World's Largest Wetlands: Ecology and Conservation. Cambridge University Press, 498 p. ISBN   978-0-521-83404-9
  13. Keddy, P.A. 2007. Plants and Vegetation: Origins, Processes, Consequences. Cambridge University Press, 680 p. ISBN   978-0-521-86480-0
  14. Bond, William (2009). "Review of Plants and Vegetation: Origins, Processes, Consequences by Paul A. Keddy". BioScience. 59 (8): 713. doi:10.1525/bio.2009.59.8.18. S2CID   130818562.
  15. Keddy, P.A. 2008. Water, Earth, Fire: Louisiana's Natural Heritage. Xlibris, Philadelphia. 229 p.
  16. Keddy, P.A. 2008. Earth, Water, Fire: An Ecological Profile of Lanark County. Motion Creative Printing (revised first edition 1999), 73p.
  17. The Lanark Era. 2008. Champions for Nature are honoured by Mississippi Valley Field Naturalists. May 27, p. 4
  18. "2009 Recipients". www.county.lanark.on.ca. Archived from the original on 17 May 2011. Retrieved 22 May 2022.