Extra-pair mating effort of male hooded warblers,Wilsonia citrina

1998 ◽  
Vol 55 (3) ◽  
pp. 553-561 ◽  
Author(s):  
BRIDGET J.M STUTCHBURY
Keyword(s):  
Mating Effort ◽  
Wilsonia Citrina ◽  
Pair Mating ◽  
Hooded Warblers ◽  
Extra Pair Mating

scholarly journals Pair Formation and Copulation Behavior in Least Flycatcher Clusters

The Condor ◽  
2000 ◽  
Vol 102 (4) ◽  
pp. 832-837 ◽  
Author(s):  
Scott A. Tarof ◽  
Laurene M. Ratcliffe
Keyword(s):  
Mating Behavior ◽  
Visual Display ◽  
Pair Formation ◽  
Mating Effort ◽  
Mating Tactics ◽  
Breeding Grounds ◽  
Pair Mating ◽  
Empidonax Minimus ◽  
Copulation Behavior ◽  
Extra Pair Mating

Abstract Least Flycatcher Empidonax minimus pairs form dense clusters of territories on the breeding grounds. We describe pair formation and copulation behavior (both within- and extra-pair) in Least Flycatcher clusters. Pair formation involved a complex behavioral sequence of trill vocalizations and visual display. Within-pair copulations were five times more likely to achieve cloacal contact than were extra-pair copulations. Least Flycatchers exhibited an overall within-pair mating effort of 2.0 ± 0.5 events pair−1 hr−1 compared to an extra-pair mating effort of 1.8 ± 0.3 events pair−1 hr−1. Within- and extra-pair mating behavior by focal birds were distinctly different with respect to rate, conspicuousness, duration, aggression intensity, and pre-copulatory display. The rate of territory incursions for extra-pair copulations was high. We discuss copulation behavior in the context of male and female mating tactics, and highlight the disparity in our knowledge of mating behavior in other members of this genus.

Extra-Pair Mating System of a Synchronously Breeding Tropical Songbird

1998 ◽  
Vol 29 (1) ◽  
pp. 72 ◽  
Author(s):  
Bridget J. M. Stutchbury ◽  
Eugene S. Morton ◽  
Walter H. Piper
Keyword(s):  
Mating System ◽  
Pair Mating ◽  
Extra Pair Mating

scholarly journals The Spatial Response of Male Hooded Warblers to Edges in Isolated Fragments

The Condor ◽  
2000 ◽  
Vol 102 (3) ◽  
pp. 595-600 ◽  
Author(s):  
D. Ryan Norris ◽  
Bridget J. M. Stutchbury ◽  
Trevor E. Pitcher
Keyword(s):  
Space Use ◽  
Forest Edge ◽  
Time Of Day ◽  
Forest Edges ◽  
Forest Patches ◽  
Wilsonia Citrina ◽  
Use Patterns ◽  
Continuous Forest ◽  
Hooded Warblers ◽  
Occupancy Rates

Abstract We tested whether Hooded Warblers (Wilsonia citrina) avoided abrupt forest edges by radiotracking males breeding in small, isolated forest patches (0.5–2.0 ha) in northwest Pennsylvania. Because territory edges were synonymous with abrupt forest edges in all cases, we compared space use patterns with males radiotracked in a nearby continuous forest (150 ha), where we defined edge from territorial boundaries. Based on the proportion of edge to core area, males in both habitats avoided the area within 20 m of the edge, implying that males responded to the presence of territory edge rather than forest edge. Surprisingly, however, males in isolated fragments used the edge area significantly more than males in continuous forest, even when measured against the relative amount of edge area within each territory. Elevated levels of edge use were not related to distance of nests to edges, nest stage, or time of day. We conclude that the presence of physical edges is not the sole determinant of territorial space use in this species and there are likely additional social factors influencing occupancy rates in small, isolated woodlots. Therefore, definitions of forest-interior species based on edge use need to be reconsidered.

scholarly journals Experimental evidence that extra-pair mating drives asymmetrical introgression of a sexual trait

2013 ◽  
Vol 280 (1771) ◽  
pp. 20132175 ◽  
Author(s):  
Daniel T. Baldassarre ◽  
Michael S. Webster
Keyword(s):  
Sexual Selection ◽  
Similar Amount ◽  
Plumage Colour ◽  
Sensory Bias ◽  
Mating Advantage ◽  
Malurus Melanocephalus ◽  
Pair Mating ◽  
Correlational Data ◽  
Extra Pair Mating ◽  
Manipulation Experiment

Theory suggests that traits under positive selection may introgress asymmetrically across a hybrid zone, potentially driven by sexual selection. Two subspecies of the red-backed fairy-wren ( Malurus melanocephalus ) differ primarily in a sexual signal used in mate choice—red versus orange male back plumage colour—but phylogeographic analyses suggest asymmetrical introgression of red plumage into the genetic background of the orange subspecies. We hypothesized that this asymmetrical introgression may be facilitated by sexual selection if red males have a mating advantage over orange males. We tested this hypothesis with correlational data and a plumage manipulation experiment where we reddened the back plumage of a subset of orange males to mimic males of the red subspecies. There was no correlational evidence of a mating advantage to naturally redder males in this population. Experimentally reddened males sired a similar amount of within-pair young and lost paternity at the same rate as orange males, but they sired significantly more extra-pair young, leading to substantially higher total reproductive success. Thus, we conclude that sexual selection via extra-pair mating is a likely mechanism responsible for the asymmetrical introgression of plumage colour in this system, and is potentially driven by a sensory bias for the red plumage signal.

Female house wrens (Troglodytes aedon) increase the size, but not immunocompetence, of their offspring through extra-pair mating

2008 ◽  
Vol 17 (16) ◽  
pp. 3697-3706 ◽  
Author(s):  
ANNA M.  FORSMAN ◽  
LAURA A.  VOGEL ◽  
SCOTT K.  SAKALUK ◽  
BONNIE G.  JOHNSON ◽  
BRIAN S.  MASTERS ◽  
...  
Keyword(s):  
Troglodytes Aedon ◽  
House Wrens ◽  
Pair Mating ◽  
Extra Pair Mating

Extra-pair mating and sexual selection on male traits across populations

2014 ◽  
Vol 126 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Linda A. Whittingham ◽  
Peter O. Dunn
Keyword(s):  
Sexual Selection ◽  
Pair Mating ◽  
Extra Pair Mating

Breeding synchrony and extra-pair mating in birds

1998 ◽  
Vol 43 (3) ◽  
pp. 217-219 ◽  
Author(s):  
Patrick J. Weatherhead ◽  
Stephen M. Yezerinac
Keyword(s):  
Breeding Synchrony ◽  
Pair Mating ◽  
Extra Pair Mating

scholarly journals Benefits of extra-pair mating may depend on environmental conditions—an experimental study in the blue tit (Cyanistes caeruleus)

2013 ◽  
Vol 67 (11) ◽  
pp. 1809-1815 ◽  
Author(s):  
Aneta Arct ◽  
Szymon M. Drobniak ◽  
Edyta Podmokła ◽  
Lars Gustafson ◽  
Mariusz Cichoń
Keyword(s):  
Experimental Study ◽  
Environmental Conditions ◽  
Blue Tit ◽  
Cyanistes Caeruleus ◽  
Pair Mating ◽  
Extra Pair Mating
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