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Biology 457 Research Methods. Deng Pan dpan@keene.edu 603-358-2725. Agenda. Develop your research topic Develop search strategies Choose appropriate databases Examples of using databases. Defining a Topic. Choose a topic that interests you

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biology 457 research methods

Biology 457Research Methods

Deng Pan

dpan@keene.edu

603-358-2725

agenda
Agenda
  • Develop your research topic
  • Develop search strategies
  • Choose appropriate databases
  • Examples of using databases
defining a topic
Defining a Topic
  • Choose a topic that interests you
  • In this class, the topic is an invasive plant – Purple Loosestrife
  • Preliminary search by browsing sources, talking to your professors, your group members, etc.
map your idea
Map Your idea
  • Create a concept map for your research topic
  • Virtually displays the concepts and relationships among ideas
  • A concept map helps you to further organize your ideas and define your topic
develop a concept map
Develop a Concept Map

Impact on

species diversity

Competition with

Goldenrod

Nutrient

concentration

Purple loosestrife

Ecosystem

functions

Herbivory

And other

issues…

develop research questions
Develop Research Questions
  • What’s the effect of purple loosestrife on species diversity?
  • What’s the effect of other invasive plants on species diversity?
  • Are there any quantity relationships between native plants and exotic plants?

Impact on species diversity

agenda1
Agenda
  • Develop your research topic
  • Develop search strategies
  • Choose appropriate databases
  • Examples of using databases
identify search terms
Identify Search Terms

What’s the effect of purple loosestrife on plant diversity?

Purple loosestrife

Effect

Plant diversity

Impact

Lythrum salicaria

Species diversity

Plant populations

Relation

Invasive plants

boolean operators
Boolean Operators

Term A

Term B

AND

  • Searches for materials containing both of the search terms
  • Narrows the search

OR

  • Searches for material containing either of the search terms
  • Broadens the search

NOT

  • Searches for material which contains term A but does not contain term B
  • Narrows the search
  • Use it carefully

Term A

Term B

Term B

Term A

truncation wildcard
Truncation/Wildcard
  • Allow you to retrieve variations of a specific word
  • Expressed by an asterisk (*) or a question mark (?)
nesting
Nesting
  • Nesting keeps concepts that are alike together and tells a search engine to search the terms in the parentheses first.

Question: what’s the effect of purple loosestrife on plant diversity?

(Effect* OR impact)

AND

(“Purple loosestrife”OR “invasive plant*”)

AND

(“Plant divers*”OR“plant population”)

review and refine your search
If you get too many hits, NARROW your search:

Search with more specific terms.

Consider adding additional search terms by using “AND”

Limit your search by discipline, date, language, or type

If you get too few hits, BROADEN your search:

Search with less specific terms.

Consider using “OR” to add synonyms.

Consider using truncation or wildcard to retrieve more variations

Consider removing a term(s) from your search strategy.

Review and Refine Your Search
agenda2
Agenda
  • Develop your research topic
  • Develop search strategies
  • Choose appropriate databases
  • Examples of using databases
what they cover
What They Cover?
  • Content scope and time scope
  • General databases
    • Academic Search Premier
  • Subject-specific databases
    • GEOBASE
    • AGRICOLA
  • Back file database
    • JSTOR
agenda3
Agenda
  • Develop your research topic
  • Develop search strategies
  • Choose appropriate databases
  • Examples of using databases
examples of using databases
Examples of Using Databases
  • www.keene.edu/library>Find an esource>Biology>Articles and databases