REU:  Genetically Variable Complex Life Cycles in           Heterogeneous Environments
{'Code': '08010207', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
{'SignBlockName': 'Gregory J. McCants', 'PO_EMAI': None, 'PO_PHON': None}
This study is concerned with causes of variation in the life            cycles of plant.feeding insects.  The aphid, >Pemphigus> >betae>,               feeds on cottonwood trees during one part its life cycle and on                 roots of herbaceous plants at other parts.  Some colonies of                    these insects switch between the two kinds of plants frequently                 while other colonies switch less often.  Preliminary evidence                   suggests that genetic differences among aphids are partly                       responsible for the variation in frequency of host switching.  In               addition, environmental factors such as temperature and level of                crowding in colonies contribute to the differences.  In this                    study, Dr. Moran will examine how these different genetic and                   environmental factors interact to determine whether or not the                  aphids switch between hosts.  Also, experiments are designed to                 determine whether and how life cycles of these insects are                      genetically adapted to local conditions of host plant                           availability and host plant resistance.  For example, Dr. Moran                 will determine whether the aphids can delete the cottonwood phase               of the life cycle in locations where the cottonwood trees are                   resistant to aphid attack.  The project is also very relevant to                the practical management of agricultural and forest pests.                      Findings will increase current understanding of how plant feeding               insects evolve in response to variation in their host plants.                   Such evolutionary responses on the part of agricultural pests                   have important consequences for their economic impact on crops                  and forests and for the design of long.term pest control                        strategies.
{'FirstName': 'Nancy', 'LastName': 'Moran', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Nancy A Moran', 'EmailAddress': 'nancy.moran@austin.utexas.edu', 'NSF_ID': '000367077', 'StartDate': '08/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Arizona', 'CityName': 'TUCSON', 'ZipCode': '85721', 'PhoneNumber': '5206266000', 'StreetAddress': '845 N PARK AVE RM 538', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Arizona', 'StateCode': 'AZ', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'AZ07', 'ORG_UEI_NUM': 'ED44Y3W6P7B9', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ARIZONA', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '112700', 'Text': 'Evolutionary Processes'}, {'Code': '914500', 'Text': 'SPECIAL PROGRAMS-RESERVE'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8806068.xml'}