Dissertation Research: A Nutritional Basis for Insular      Gigantism in Small Mammalian Herbivores
{'Code': '08010207', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
{'SignBlockName': 'Tarri Joyner', 'PO_EMAI': 'tjoyner@nsf.gov', 'PO_PHON': '7032927742'}
Body size influences the physiology, behavior and community                level interactions of organisms, but little is actually known                   about the factors controlling it.  Small mammalian herbivores,                  isolated on islands and relieved of predation and competition                   pressures, offer an ideal situation for the study of selection on               size.  Island herbivores subsist on a food supply which is not                  only less diverse, but less abundant than in mainland habitats.                 Theory predicts that larger animals will have lower specific                    metabolic rates, yet their gut size increases approximately                     isometrically.  Thus, selection on body size may result from the                greater efficiency of larger animals in extracting energy from                  low-quality foods.  A comparative approach will be used to test                 this hypothesis.  Selection on size will be measured on two                     islands--one where gigantism is exhibited, one where it is not.                 Dietary composition and quality will be measured and analyzed,                  then related to biological traits associated with size.
[{'FirstName': 'Richard', 'LastName': 'Lenski', 'PI_MID_INIT': 'E', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Richard E Lenski', 'EmailAddress': 'lenski@msu.edu', 'NSF_ID': '000250057', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Felisa', 'LastName': 'Smith', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Felisa A Smith', 'EmailAddress': 'fasmith@unm.edu', 'NSF_ID': '000453161', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of California-Irvine', 'CityName': 'IRVINE', 'ZipCode': '926970001', 'PhoneNumber': '9498247295', 'StreetAddress': '160 ALDRICH HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '47', 'CONGRESS_DISTRICT_ORG': 'CA47', 'ORG_UEI_NUM': 'MJC5FCYQTPE6', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CALIFORNIA IRVINE', 'ORG_PRNT_UEI_NUM': 'MJC5FCYQTPE6'}
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{'Code': '114100', 'Text': 'PHYSIOLOG & STRUCTURAL SYS'}
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