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Kaycee E. Morra
Michigan State University
3Publications
1H-index
2Citations
Publications 3
Newest
#1Kaycee E. Morra (MSU: Michigan State University)H-Index: 1
#2Yoshito Chikaraishi (Hokkaido University)H-Index: 30
Last.Peggy H. Ostrom (MSU: Michigan State University)H-Index: 33
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We investigated how foraging habits vary among three ecologically distinct wide-ranging seabirds. Using amino acid δ15N proxies for nutrient regime (δ15NPhe) and trophic position (Δδ15NGlu-Phe), we compared Newell’s shearwater (Puffinus newelli) and Laysan albatross (Phoebastria immutabilis) foraging habits over the past 50–100 years, respectively, to published records for the Hawaiian petrel (Pterodroma sandwichensis). Standard ellipses constructed from the isotope proxies show that inter-popul...
#1Kaycee E. Morra (MSU: Michigan State University)H-Index: 1
#2Anne E. Wiley (University of Akron)H-Index: 7
Last.Peggy H. Ostrom (MSU: Michigan State University)H-Index: 33
view all 5 authors...
Abstract. Isotope data from Hawaiian Petrel (Pterodroma sandwichensis) primaries P1 and P6 were compared to determine whether foraging habits change between the beginning and middle of the nonbreeding season. P6 data did not differ between samples derived from a longitudinal and a minimally invasive protocol and point samples taken from the feather bases. While P6 δ13C increased longitudinally, no δ15N longitudinal trends emerged, yet inter-individual δ15N variability was high. P6 δ13C data sugg...
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