Thomas T. Veblen

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Thomas Thorstein Veblen (born 15 November 1947) is an American forest ecologist and physical geographer known for his work on the ecology of Nothofagus (southern beech) forests in the Southern Hemisphere and on the ecology of conifer forests in the southern Rocky Mountains of the U.S.A. He is an Arts and Sciences College Professor of Distinction at University of Colorado at Boulder, USA (2006).

Contents

Career

Veblen’s research focuses on disturbance ecology in the contexts of climate change and human impacts on temperate forest ecosystems in both the Northern and Southern hemispheres. From 1975-79 he was professor of plant ecology in the Forestry School of the Austral University in Valdivia, Chile where he initiated pioneering research on the disturbance ecology and regeneration dynamics of Nothofagus forests. One of his early achievements was the unravelling of how repeated coarse-scale disturbances related mostly to tectonic events control the dynamics of forests in the Andes of southern Chile. [1] His early work developed a conceptual framework which was seminal to the shift from equilibrium to non-equilibrium paradigms in ecology in the 1980s. His early work defined a research agenda for multiple generations of forest ecologists in southern Chile and Argentina including many internationally recognized research leaders who completed their doctoral training with Veblen. [2] His continuing work in the forests of Patagonian Chile and Argentina examines climatic influences on wildfire activity and the effects of introduced mammals on vegetation responses to fire. [3]

In the U.S. Rocky Mountains Veblen has published on the roles of wildfire, bark beetle outbreaks, and wind storms in the dynamics of conifer forests. [4] [5] He published one of the first quantitative studies of interacting disturbance by wildfire, snow avalanches, and bark beetle outbreaks. [6] Using tree ring methods he and his students have reconstructed multi-century records of bark beetle outbreaks and wildfires and related them to interannual climatic variability. [7] [8]

Professor Veblen held a postdoc fellowship with the Forest Research Institute of New Zealand from 1979 to 1981 where he conducted research on the disturbance ecology of beech and conifer forests and the effects of introduced mammals on tree mortality and regeneration in collaboration with Dr. Glenn H. Stewart of the Forest Research Institute. Their papers published in the early 1980s were pivotal to the adoption of non-equilibrium paradigms in plant ecology in New Zealand. [9] [10]

Honours and awards

In 1985 Veblen was awarded a John Simon Guggenheim Memorial Fellowship. Since 1991 Veblen is Honorary Fellow of the Royal Society of New Zealand. [11] In 1992 Veblen received an Honors in Research Award from the Association of American Geographers. In 2000, Veblen was the recipient of a "Carl O. Sauer Distinguished Scholar Award". [12] In 2008 Veblen was elected a Fellow of the American Association for the Advancement of Science. [13] [14] In 2017 Veblen received the title of Distinguished Professor, the highest honor bestowed by the University of Colorado on its faculty. [15]

Publications

Veblen was a co-editor of The Ecology and Biogeography of Nothofagus Forests, a book published by Yale University Press in March 1996. [16]

Related Research Articles

<i>Araucaria araucana</i> Chilean/Argentine pine tree

Araucaria araucana, commonly called the monkey puzzle tree, monkey tail tree, piñonero, pewen or Chilean pine, is an evergreen tree growing to a trunk diameter of 1–1.5 m (3.3–4.9 ft) and a height of 30–40 m (98–131 ft). It is native to central and southern Chile and western Argentina. It is the hardiest species in the conifer genus Araucaria. Because of the prevalence of similar species in ancient prehistory, it is sometimes called a living fossil. It is also the national tree of Chile. Its conservation status was changed to Endangered by the IUCN in 2013 due to the dwindling population caused by logging, forest fires, and grazing.

<span class="mw-page-title-main">Tree line</span> Edge of the habitat at which trees are capable of growing

The tree line is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions. The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed canopy.

<i>Pinus flexilis</i> Pine tree found in North America

Pinus flexilis, the limber pine, is a species of pine tree-the family Pinaceae that occurs in the mountains of the Western United States, Mexico, and Canada. It is also called Rocky Mountain white pine.

<i>Nothofagus</i> Genus of plants

Nothofagus, also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America and east and southeast Australia, New Zealand, New Guinea, and New Caledonia. The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America.

<i>Pinus contorta</i> Species of plant

Pinus contorta, with the common names lodgepole pine and shore pine, and also known as twisted pine, and contorta pine, is a common tree in western North America. It is common near the ocean shore and in dry montane forests to the subalpine, but is rare in lowland rain forests. Like all pines, it is an evergreen conifer.

<i>Fitzroya</i> Species of plant

Fitzroya is a monotypic genus in the cypress family. The single living species, Fitzroya cupressoides, is a tall, long-lived conifer native to the Andes mountains and coastal regions of southern Chile, and only to the Argentine Andes, where it is an important member of the Valdivian temperate forests. Common names include alerce, lahuén, and Patagonian cypress. The genus was named in honour of Robert FitzRoy.

<span class="mw-page-title-main">Coarse woody debris</span>

Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests and in rivers or wetlands. A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris to be defined as "coarse" varies by author, ranging from 2.5–20 cm (1–8 in) in diameter.

<span class="mw-page-title-main">Bark beetle</span> Subfamily of beetles

A bark beetle is the common name for the subfamily of beetles Scolytinae. Previously, this was considered a distinct family (Scolytidae), but is now understood to be a specialized clade of the "true weevil" family (Curculionidae). Although the term "bark beetle" refers to the fact that many species feed in the inner bark (phloem) layer of trees, the subfamily also has many species with other lifestyles, including some that bore into wood, feed in fruit and seeds, or tunnel into herbaceous plants. Well-known species are members of the type genus Scolytus, namely the European elm bark beetle S. multistriatus and the large elm bark beetle S. scolytus, which like the American elm bark beetle Hylurgopinus rufipes, transmit Dutch elm disease fungi (Ophiostoma). The mountain pine beetle Dendroctonus ponderosae, southern pine beetle Dendroctonus frontalis, and their near relatives are major pests of conifer forests in North America. A similarly aggressive species in Europe is the spruce ips Ips typographus. A tiny bark beetle, the coffee berry borer, Hypothenemus hampei is a major pest on coffee plantations around the world.

<span class="mw-page-title-main">American three-toed woodpecker</span> Species of bird

The American three-toed woodpecker is a medium-sized woodpecker, which is native to North America.

<span class="mw-page-title-main">Disturbance (ecology)</span> Temporary change in environmental conditions that causes a pronounced change in an ecosystem

In ecology, a disturbance is a temporary change in environmental conditions that causes a pronounced change in an ecosystem. Disturbances often act quickly and with great effect, to alter the physical structure or arrangement of biotic and abiotic elements. A disturbance can also occur over a long period of time and can impact the biodiversity within an ecosystem.

Thomas W. Swetnam is Regents' Professor Emeritus of Dendrochronology at the University of Arizona, studying disturbances of forest ecosystems across temporal and spatial scales. He served as the Director of the Laboratory of Tree-Ring Research from 2000 to 2015.

<span class="mw-page-title-main">Temperate deciduous forest</span> Deciduous forest in the temperate regions

Temperate deciduous or temperate broad-leaf forests are a variety of temperate forest 'dominated' by deciduous trees that lose their leaves each winter. They represent one of Earth's major biomes, making up 9.69% of global land area. These forests are found in areas with distinct seasonal variation that cycle through warm, moist summers, cold winters, and moderate fall and spring seasons. They are most commonly found in the Northern Hemisphere, with particularly large regions in eastern North America, East Asia, and a large portion of Europe, though smaller regions of temperate deciduous forests are also located in South America. Examples of trees typically growing in the Northern Hemisphere's deciduous forests include oak, maple, basswood, beech and elm, while in the Southern Hemisphere, trees of the genus Nothofagus dominate this type of forest. Temperate deciduous forests provide several unique ecosystem services, including habitats for diverse wildlife, and they face a set of natural and human-induced disturbances that regularly alter their structure.

<span class="mw-page-title-main">Zona Sur</span> Natural region of continental Chile

Zona Sur is one of the five natural regions on which CORFO divided continental Chile in 1950. Its northern border is formed by the Bío-Bío River, which separates it from the Central Chile Zone. The Southern Zone borders the Pacific Ocean to the west, and to the east lies the Andean mountains and Argentina. Its southern border is the Chacao Channel, which forms the boundary with the Austral Zone. While the Chiloé Archipelago belongs geographically to the Austral Zone in terms of culture and history, it lies closer to the Southern Zone.

<span class="mw-page-title-main">Sierra Nevada subalpine zone</span> Biotic zone in California, United States

The Sierra Nevada subalpine zone refers to a biotic zone below treeline in the Sierra Nevada mountain range of California, United States. This subalpine zone is positioned between the upper montane zone at its lower limit, and tree line at its upper limit.

Rucamanque is a property owned by the Universidad de La Frontera in Chile, with a total area of 435.1 hectares, that is used for research, environmental education, and conservation. Rucamanque is located in south-central Chile, at 376 m of altitude, County of Temuco, Cautın, IX Region, Chile.

<i>Dendroctonus rufipennis</i> Species of beetle

Dendroctonus rufipennis, the spruce beetle, is a species of bark beetle native to British Columbia, Newfoundland and Labrador, Nova Scotia, Ontario, Quebec, Northern Manitoba, the Yukon, Alaska, Colorado, Wyoming, Montana, and Maine. They are known to destroy forests of spruce trees including Engelmann, White, Sitka, and Colorado blue spruce. Adults average 4 to 7 mm in length.

<span class="mw-page-title-main">Montane ecosystems</span> Ecosystems found in mountains

Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands and shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply.

<span class="mw-page-title-main">Complex early seral forest</span> Type of ecosystem present after a major disturbance

Complex early seral forests, or snag forests, are ecosystems that occupy potentially forested sites after a stand-replacement disturbance and before re-establishment of a closed forest canopy. They are generated by natural disturbances such as wildfire or insect outbreaks that reset ecological succession processes and follow a pathway that is influenced by biological legacies that were not removed during the initial disturbance. Complex early seral forests develop with rich biodiversity because the remaining biomass provides resources to many life forms and because of habitat heterogeneity provided by the disturbances that generated them. In this and other ways, complex early seral forests differ from simplified early successional forests created by logging. Complex early seral forest habitat is threatened from fire suppression, thinning, and post-fire or post-insect outbreak logging.

<span class="mw-page-title-main">Maulino forest</span>

Maulino forest is a forest type naturally growing in the Chilean Coast Range of Central Chile from latitude 35°55 to 36°20 S. The forest grows in the transition zone between Mediterranean climate and humid temperate climate. Precipitation varies from 1000 to 700 mm/a and is concentrated in winter. According to geographers Humberto Fuenzalida and Edmundo Pisano the forest is one of mesophytes on the transition zone of temperate rain forests.

Tania Schoennagel is an ecologist who specializes in wildfires and insect outbreaks. She is a research scientist at the University of Colorado, Boulder and has been involved with INSTAAR since 2011.

References

  1. Veblen, Thomas; Donoso, Claudio; Schlegel, Federico; Escobar, Bernardo (1981). "Forest dynamics in south central Chile". Journal of Biogeography. 8 (3): 211–247. Bibcode:1981JBiog...8..211V. doi:10.2307/2844678. JSTOR   2844678.
  2. González, M.E., M. Amoroso, A. Lara, T.T. Veblen, C. Donoso, T. Kitzberger, I. Mundo, A. Holz, A. Casteller, J. Paritsis, A. Muñoz, M. L. Suárez. 2014. Ecología de disturbios y su influencia en los bosques templados de Chile y Argentina. Pages 411-502 in C. Donoso, M. E. González, A. Lara (eds). Ecología Forestal. Bases para el Manejo Sustentable y Conservación de los Bosques Nativos de Chile. Ediciones de La Universidad Austral de Chile, Valdivia.
  3. Veblen, T.T.; Holz, A.H.; Paritsis, J.; Raffaele, E.; Kitzberger, T.; Blackhall, M. (2011). "Adapting to global environmental change in Patagonia: What role for disturbance ecology?". Austral Ecology. 36 (8): 891–903. Bibcode:2011AusEc..36..891V. doi:10.1111/j.1442-9993.2010.02236.x. hdl: 11336/76727 .
  4. Veblen, T.T.; Hadley, K.S.; Reid, M.S.; Rebertus, A.J. (1991). "The response of subalpine forests to spruce beetle outbreak in Colorado". Ecology. 72 (1): 213–231. Bibcode:1991Ecol...72..213V. doi:10.2307/1938916. JSTOR   1938916.
  5. Veblen, T.T.; Kulakowski, D.; Eisenhart, K.S.; Baker, W.L. (2001). "Subalpine forest damage from a severe windstorm in northern Colorado". Canadian Journal of Forest Research. 31 (12): 2089–2097. doi:10.1139/cjfr-31-12-2089.
  6. Veblen, T.T.; Hadley, K.S.; Nel, E.M.; Kitzberger, T.; Reid, M.; Villalba, R. (1994). "Disturbance regime and disturbance interactions in a Rocky Mountain subalpine forest". Journal of Ecology. 82 (1): 125–135. Bibcode:1994JEcol..82..125V. doi:10.2307/2261392. JSTOR   2261392.
  7. Veblen, T. T.; Kitzberger, T.; Donnegan, J. (2000). "Climatic and human influences on fire regimes in ponderosa pine forests in the Colorado Front Range". Ecological Applications. 10 (4): 1178–1195. doi:10.2307/2641025. JSTOR   2641025.
  8. Hart, S.J.; Veblen, T.T.; Eisenhart, K.S.; Jarvis, D.; Kulakowski, D. (2014). "Drought induces spruce beetle (Dendroctonus rufipennis) outbreaks across northwestern Colorado". Ecology. 95 (4): 930–939. Bibcode:2014Ecol...95..930H. doi:10.1890/13-0230.1. PMID   24933812.
  9. Veblen, T. T.; Stewart, G. H. (1982). "On the conifer regeneration gap in New Zealand: the dynamics of Libocedrus bidwillii stands on South Island". Journal of Ecology. 70 (2): 413–436. Bibcode:1982JEcol..70..413V. doi:10.2307/2259912. JSTOR   2259912.
  10. Veblen, T. T.; Stewart, G. H. (1982). "The effects of introduced wild animals on New Zealand forests". Annals of the Association of American Geographers. 72 (3): 372–397. doi:10.1111/j.1467-8306.1982.tb01832.x.
  11. "List of Current Honorary Fellows of the Royal Society of New Zealand". The Royal Society of New Zealand. Royal Society of New Zealand . Retrieved November 10, 2015.
  12. Young, Kenneth R (2002). "Thomas T. Veblen: Recipient of the 2000 Carl O. Sauer Distinguished Scholar Award" (PDF). The Journal of Latin American Geography . Retrieved 9 November 2015.
  13. People on the move, Denver Post, December 30, 2008. Accessed November 10, 2015
  14. AAAS Fellows for 2008, American Association for the Advancement of Science. Accessed November 10, 2015
  15. "Interview with Tom Veblen, Distinguished Professor". 19 December 2017.
  16. "Yale University Press - The Ecology and Biogeography of Nothofagus Forests". Yale University Press . Retrieved 9 November 2015.