Juvenile Sandhill Cranes exhibit wider ranging and more exploratory movements than adults during the breeding season

David W. Wolfson, John R. Fieberg, David E. Andersen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Sandhill Cranes Antigone canadensis exhibit delayed sexual maturity and breeding, and therefore juvenile Cranes searching for suitable territories to occupy have different ecological constraints on movements than adults, which must defend a territory and raise young. We used fine-scale GPS telemetry data to characterize and compare movements of adult and juvenile Cranes near the boundary between two populations in Minnesota, USA, from arrival on natal areas in the spring until staging prior to autumn migration. Juvenile and adult Cranes had marked differences in movement patterns throughout the breeding season. Juveniles were more likely than adults to display long-distance movements: they revisited areas less frequently throughout the breeding season and they had lower average residence times.

Original languageEnglish (US)
Pages (from-to)556-562
Number of pages7
JournalIbis
Volume162
Issue number2
DOIs
StatePublished - Apr 1 2020

Bibliographical note

Funding Information:
We thank N. Cross, J. Dachenhaus, J. Fox, D. Fronczak, G. Kramer and E. Wells for assistance with fieldwork and many private landowners for granting access during our study. We thank W. Brininger, T. Buker, L. Domine, W. Ford, A. Hewitt, G. Knutsen, M. North and H. Saloka for logistical support. We thank S. Dodge for assistance with animating Crane trajectories. We thank C. Bracis for help with the recurse package. We thank D. Chamberlain, M. MacPherson, G. Souchay and one anonymous reviewer for comments that were helpful in improving the manuscript. Funding for this project was provided by the U.S. Fish and Wildlife Service and U.S. Geological Survey (Science Support Program) through Research Work Order No. 101 at the U.S. Geological Survey, Minnesota Cooperative Fish and Wildlife Research Unit; by the Minnesota Environmental and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR); by the U.S. Fish and Wildlife Service Webless Migratory Game Bird Program; and by the Minnesota Department of Natural Resources. Any use of trade, firm or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government, the University of Minnesota or the State of Minnesota. The Minnesota Institutional Animal Care and Use Committee granted approval for field methods employed in this study (# 1403-31362A).

Publisher Copyright:
© 2019 British Ornithologists’ Union

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

  • Antigone canadensis
  • movement ecology
  • prospecting
  • residence time
  • revisitation
  • telemetry

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