1
|
Potvin DA, Strickland K, MacDougall-Shackleton EA, Slade JW, Frère CH. Applying network analysis to birdsong research. Anim Behav 2019. [DOI: 10.1016/j.anbehav.2019.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
2
|
Reitsma LR, Jukosky JA, Kimiatek AJ, Goodnow ML, Hallworth MT. Extra-pair paternity in a long-distance migratory songbird beyond neighbors’ borders and across male age classes. CAN J ZOOL 2018. [DOI: 10.1139/cjz-2016-0277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Roughly 90% of socially monogamous bird species exhibit some degree of extra-pair paternity (EPP), although the extent and the underlying mechanisms vary among species. We analyzed spatial and demographic patterns of EPP over a 6 year period (2005–2010) as part of a long-term population study of Canada Warblers (Cardellina canadensis (L., 1766)). We identified 12 microsatellite loci used to assess paternity for 185 nestlings from 61 nests. Extra-pair young (EPY) accounted for 41.6% of all nestlings and 57.4% of nests contained at least one EPY. Fewer than half of EPY were sired by males who shared territorial boundaries, and some males sired young in nests 1 km from their territory. The age of social males did not differ from males who cuckolded them. The majority (83%) of EPY were sired by males in older age classes (2+ years old), while <17% were sired by 1 year olds. Of the young sired by older males, 58.5% were sired by males 3–7 years old. Males that sired more EPY sired fewer within-pair young (WPY); those without EPY sired more WPY suggesting a possible fitness trade-off between these two strategies. Our findings suggest multiple age-based strategies within a single breeding population, as well as potential strategy shifts to maximize lifetime fitness as they age.
Collapse
Affiliation(s)
- Leonard R. Reitsma
- Department of Biological Sciences, Plymouth State University, Plymouth, NH 03264, USA
| | - James A. Jukosky
- Department of Natural Sciences, Colby Sawyer College, New London, NH 03257, USA
| | - Alexi J. Kimiatek
- Department of Biological Sciences, Plymouth State University, Plymouth, NH 03264, USA
| | - Marrisa L. Goodnow
- Department of Biological Sciences, Plymouth State University, Plymouth, NH 03264, USA
| | - Michael T. Hallworth
- Smithsonian Conservation Biology Institute, Migratory Bird Center, Washington, DC 20008, USA
| |
Collapse
|
3
|
Vaytina TM, Shitikov DA. Age-related changes in song repertoire size and song type sharing in the Whinchat Saxicola rubetra. BIOACOUSTICS 2017. [DOI: 10.1080/09524622.2017.1408495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- T. M. Vaytina
- Zoology and Ecology Department, Moscow Pedagogical State University, Moscow, Russia
| | - D. A. Shitikov
- Zoology and Ecology Department, Moscow Pedagogical State University, Moscow, Russia
| |
Collapse
|
4
|
|