van der Valk, Arnold

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Email Address
valk@iastate.edu
Birth Date
Title
Professor Emeritus
Academic or Administrative Unit
Organizational Unit
Ecology, Evolution and Organismal Biology

The Department of Ecology, Evolution, and Organismal Biology seeks to teach the studies of ecology (organisms and their environment), evolutionary theory (the origin and interrelationships of organisms), and organismal biology (the structure, function, and biodiversity of organisms). In doing this, it offers several majors which are codirected with other departments, including biology, genetics, and environmental sciences.

History
The Department of Ecology, Evolution, and Organismal Biology was founded in 2003 as a merger of the Department of Botany, the Department of Microbiology, and the Department of Zoology and Genetics.

Dates of Existence
2003–present

Related Units

Organizational Unit
Botany
The Botany Graduate Program offers work for the degrees Master of Science and Doctor of Philosophy with a graduate major in Botany, and minor work for students majoring in other departments or graduate programs. Within the Botany Graduate Major, one of the following areas of specialization may be designated: aquatic and wetland ecology, cytology, ecology, morphology, mycology, physiology and molecular biology, or systematics and evolution. Relevant graduate courses that may be counted toward completion of these degrees are offered by the Departments of EEOB and GDCB, and by other departments and programs. The specific requirements for each student’s course distribution and research activities are set by the Program of Study Committee established for each student individually, and must satisfy all requirements of the Graduate College (See Index). GRE (and if necessary, TOEFL) scores are required of all applicants; students are encouraged to contact faculty prior to application.
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Publication

Effects of Agricultural Development on Biodiversity: Lessons from Iowa

1996-09-01 , Bultena, Gordon , Duffy, Michael , Thompson, Janette , Jungst, Steven , van der Valk, Arnold , Kanwar, Ramesh , Menzel, Bruce , Kanwar, Rameshwar , Singh, Piyush , Willham, Richard , Misra, Manjit , Economics , Agricultural and Biosystems Engineering

Numerous ecological studies have shown that human population growth is forcing many plant and animal species into extinction. Communities of all living organisms, such as those found in prairies, marshes, woodlands, and lakes, interact in many ways with their surrounding environments. A recent report of the 1995 UN Conference on Biodiversity in Indonesia found that human population growth and economic development are depleting the planet's biological resources. Although environmental awareness is growing, damage to global diversity continues. More than 30,000 plant and animal species face possible extinction worldwide and some forty to a hundred species become extinct every day.