FN Archimer Export Format
PT J
TI Age, condition and dominance-related sexual ornament size before and during the breeding season in the black grouse     Lyrurus tetrix
BT 
AF HARRIS, Sarah
   KERVINEN, Matti
   LEBIGRE, Christophe
   PIKE, Thomas W.
   SOULSBURY, Carl D.
AS 1:1;2:2,3;3:4;4:1;5:1;
FF 1:;2:;3:;4:;5:;
C1 Univ Lincoln, Joseph Banks Labs, Sch Life Sci, Lincoln, England.
   Univ Jyvaskyla, Dept Biol & Environm Sci, Jyvaskyla, Finland.
   Finnish Wildlife Agcy, Kuopio, Finland.
   IFREMER, Unite Sci & Technol Halieut, Ctr Bretagne, Plouzane, France.
C2 UNIV LINCOLN, UK
   UNIV JYVASKYLA, FINLAND
   RIISTA, FINLAND
   IFREMER, Unite Sci & Technol Halieut, Ctr Bretagne, Plouzane, France.
IF 2.232
TC 2
UR https://archimer.ifremer.fr/doc/00440/55121/56577.pdf
LA English
DT Article
DE ;age;ornament expression;dominance
AB Male ornaments function as honest cues of male quality in many species and are subject to intra‐ and intersexual selection. These ornaments are generally studied during peak expression, however their size outside the breeding season may determine ultimate ornament size and costliness, and as such reproductive success. We investigated whether male black grouse Lyrurus tetrix eye comb size was related to age, condition and measures of male dominance before and during the breeding season. Total combined eye comb size began to increase ~70 days before the start of the breeding season. Adult males (aged ≥ 2 years old) had consistently larger eye combs than younger males (1 year old) both before and during the breeding season. Heavier and more dominant adult males (attending the lek more frequently and successfully reproducing) had larger eye combs. For younger males, those that were heavier had larger eye combs. Additionally, males that spent more time on the lek showed increased eye comb size as the breeding season approached. Overall we find that ornament size is positively related to dominance and condition before and during the breeding season. Since dominance is accrued through year‐round interactions in many species, the ability to maintain larger signals over prolonged periods, including outside of the breeding season, is likely to be beneficial for adults. For younger males, it is likely that they cannot sustain or are constrained from producing larger eye combs over long periods of time. They therefore prioritise growth of their ornaments later, and according to the amount of time they spend on the lek. 
PY 2018
PD JUN
SO Journal Of Avian Biology
SN 0908-8857
PU Wiley
VL 49
IS 7
UT 000440036000011
DI 10.1111/jav.01648
ID 55121
ER

EF