The dynamics of alternative male mating tactics in a population of Black Grouse Tetrao tetrix in the Italian Alps

2012 ◽  
Vol 153 (4) ◽  
pp. 999-1009 ◽  
Author(s):  
D. E. Chamberlain ◽  
M. Bocca ◽  
L. Migliore ◽  
E. Caprio ◽  
A. Rolando
Keyword(s):  
Male Mating ◽  
Black Grouse ◽  
Italian Alps ◽  
Mating Tactics ◽  
Tetrao Tetrix

scholarly journals Erratum to: The dynamics of alternative male mating tactics in a population of Black Grouse Tetrao tetrix in the Italian Alps

2013 ◽  
Vol 154 (3) ◽  
pp. 887-887
Author(s):  
D. E. Chamberlain ◽  
M. Bocca ◽  
L. Migliore ◽  
E. Caprio ◽  
A. Rolando
Keyword(s):  
Male Mating ◽  
Black Grouse ◽  
Italian Alps ◽  
Mating Tactics ◽  
Tetrao Tetrix

scholarly journals The winter roosting and diet of Black Grouse Tetrao tetrix in the north-western Italian Alps

2013 ◽  
Vol 155 (1) ◽  
pp. 183-194 ◽  
Author(s):  
Massimo Bocca ◽  
Enrico Caprio ◽  
Dan Chamberlain ◽  
Antonio Rolando
Keyword(s):  
Black Grouse ◽  
Italian Alps ◽  
Tetrao Tetrix ◽  
The North ◽  
North Western

Fighting behaviour as a correlate of male mating success in black grouse Tetrao tetrix

2012 ◽  
Vol 66 (12) ◽  
pp. 1577-1586 ◽  
Author(s):  
Anni Hämäläinen ◽  
Rauno V. Alatalo ◽  
Christophe Lebigre ◽  
Heli Siitari ◽  
Carl D. Soulsbury
Keyword(s):  
Mating Success ◽  
Male Mating ◽  
Black Grouse ◽  
Male Mating Success ◽  
Tetrao Tetrix ◽  
Fighting Behaviour

Climatic control and population dynamics of black grouse (Tetrao tetrix) in the Western Italian Alps

2014 ◽  
Vol 79 (1) ◽  
pp. 156-166 ◽  
Author(s):  
Ramona Viterbi ◽  
Simona Imperio ◽  
Dante Alpe ◽  
Vittorio Bosser-peverelli ◽  
Antonello Provenzale
Keyword(s):  
Population Dynamics ◽  
Black Grouse ◽  
Italian Alps ◽  
Tetrao Tetrix ◽  
Climatic Control

scholarly journals Estimation of the chemical composition of black grouse Tetrao tetrix diets in the eastern Italian Alps

1997 ◽  
Vol 3 (1) ◽  
pp. 187-194 ◽  
Author(s):  
Stefano Filacorda ◽  
Angela Sepulcri ◽  
Edi Piasentier ◽  
Paolo F. de Franceschi
Keyword(s):  
Chemical Composition ◽  
Black Grouse ◽  
Italian Alps ◽  
Tetrao Tetrix

Fertilization dynamics of sperm from different male mating tactics in bluegill (Lepomis macrochirus)

2005 ◽  
Vol 83 (12) ◽  
pp. 1638-1642 ◽  
Author(s):  
Albrecht I Schulte-Hostedde ◽  
Gary Burness
Keyword(s):  
Sperm Competition ◽  
Lepomis Macrochirus ◽  
Fertilization Success ◽  
Male Mating ◽  
Motile Sperm ◽  
Mating Tactics ◽  
Sperm Activation ◽  
Competition Theory ◽  
Sperm Density ◽  
Over Time

Sperm competition results in the evolution of ejaculate characteristics such as high sperm density, high motility, and fast sperm swimming speed. A fundamental assumption of sperm competition theory is that ejaculates with high motility and fast-swimming sperm have an advantage with respect to fertilization success. We tested this assumption by studying the fertilization dynamics of alternative mating tactics (cuckolders and parentals) of male bluegill (Lepomis macrochirus Rafinesque, 1819). Sneakers (cuckolders) have faster swimming sperm and a higher proportion of motile sperm immediately following sperm activation than do parentals; however, these variables decline more quickly over time in sneaker sperm than in the sperm of parental males. We used a controlled fertilization experiment to test the prediction that parental males will have higher fertilization success than sneakers late in the sperm activation cycle because of the reduced rate of decline in ejaculate quality over time. We found that as the time from sperm activation increases parental sperm fertilizes more eggs than the sperm of sneakers. Our results support the idea that fertilization success is higher when ejaculates contain a higher proportion of either motile sperm or faster swimming sperm, all else being equal. In addition, after controlling for time from sperm activation, we found a significant bias in fertilization success toward parental males, suggesting that cryptic female choice might play a role in fertilization dynamics.

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