scholarly journals Male competition reverses female preference for male chemical cues

2021 ◽  
Author(s):  
Zorimar Vilella‐Pacheco ◽  
Lisa D. Mitchem ◽  
Vincent A. Formica ◽  
Edmund D. Brodie
Keyword(s):  
Chemical Cues ◽  
Female Preference ◽  
Male Competition

Operational sex ratio influences female preference and male–male competition in guppies

1999 ◽  
Vol 58 (2) ◽  
pp. 287-294 ◽  
Author(s):  
Mullica Jirotkul
Keyword(s):  
Sex Ratio ◽  
Female Preference ◽  
Male Competition ◽  
Operational Sex Ratio

Female Choice of Males in Cuttlefish (Mollusca: Cephalopoda)

Behaviour ◽  
1997 ◽  
Vol 134 (13-14) ◽  
pp. 975-988 ◽  
Author(s):  
Jean Geary Boal
Keyword(s):  
Chemical Cues ◽  
Virgin Female ◽  
Female Preference ◽  
Male Dominance ◽  
Adult Males ◽  
Visual Displays ◽  
Significant Preference ◽  
Dominance Hierarchies ◽  
In Captivity ◽  
Sexually Mature

AbstractIn captivity, male cuttlefish use visual displays to establish size-based dominance hierarchies and larger males obtain most of the copulations. This experiment was performed to determine if females prefer the larger, more dominant males and whether females use male visual displays to evaluate males. Twenty sexually mature, virgin female cuttlefish were given up to six opportunities to approach one of two males out of a pool of ten adult males, or to approach neither. Females did have significant preferences between males, but they were not related to male dominance. Females showed a consistent and significant preference for the more recently mated male. These preferred males were also more likely to mate again, when given the opportunity, than were less-preferred, less-recently mated males. Females also preferred males that showed fewer zebra displays. Viewing male-male interactions did not affect their choices. Results suggest that female preference could be based on chemical cues, while visual displays may function primarily as agonistic signals. Females who mated did so repeatedly before laying eggs, providing opportunity for sperm competition.

scholarly journals Advertisement-call modification, male competition, and female preference in the bird-voiced treefrog Hyla avivoca

2008 ◽  
Vol 63 (2) ◽  
pp. 195-208 ◽  
Author(s):  
Carlos César Martínez-Rivera ◽  
H. Carl Gerhardt
Keyword(s):  
Female Preference ◽  
Male Competition ◽  
Advertisement Call ◽  
Hyla Avivoca

Female Preference and Variability Among t-Haplotypes in Wild House Mice

1994 ◽  
Vol 143 (5) ◽  
pp. 766-784 ◽  
Author(s):  
Sarah Lenington ◽  
Carol B. Coopersmith ◽  
Mark Erhart
Keyword(s):  
Female Preference ◽  
House Mice ◽  
Wild House Mice

scholarly journals Combined cues of male competition influence spermatozoal investment in a moth

2020 ◽  
Vol 34 (6) ◽  
pp. 1223-1234
Author(s):  
Junyan Liu ◽  
Yujing Zhang ◽  
Xia‐Lin Zheng ◽  
Xiong Z. He ◽  
Qiao Wang
Keyword(s):  
Male Competition

scholarly journals Protogyny in Autumn Migration: Do Male Birds ”Play Chicken”?

The Auk ◽  
2005 ◽  
Vol 122 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Alexander M. Mills
Keyword(s):  
Migratory Birds ◽  
Indirect Selection ◽  
Male Competition ◽  
Autumn Migration ◽  
Direct Selection ◽  
Differential Migration ◽  
The North ◽  
Parsimonious Explanation ◽  
Ground Conditions ◽  
Wintering Ground

AbstractProtandry, the earlier arrival of males than of females on breeding areas, occurs in many taxa, including many migratory birds. Numerous hypotheses have been generated to explain protandry. Using bird-banding records, I show that protogyny, the earlier migration of females, frequently occurs in the autumn, though it is less universal and less dramatic than spring protandry. In one species, it occurs in both hatch-year and adult birds. When (1) spring and autumn, (2) departures and arrivals, and (3) breeding and wintering ground conditions are considered, hypotheses generated only to explain spring protandry can be more thoroughly evaluated. Using that approach, the most parsimonious explanation of differential migration between the sexes explains earlier male arrival in spring and later male departure in autumn through either (1) indirect selection operating on intrasexual male competition for territories or (2) direct selection operating on intersexual relations requiring males to be present on breeding territories when females are present. In autumn-protogynous species, males may ”play chicken,” balancing the benefits of remaining longer than females and protecting territories for subsequent years against the costs of remaining in the north under deteriorating conditions and delaying the acquisition of a good winter territory.Protogynie et migration automnale: Est-ce que les mâles ”jouent les dégonflés”?

scholarly journals The role of adult fiddler crab environmental acoustic cues and chemical cues in stimulating molting of field-caught megalopae

2021 ◽  
Vol 537 ◽  
pp. 151516
Author(s):  
Emily E. Waddell ◽  
Wendy E.D. Piniak ◽  
Kathleen A. Reinsel ◽  
James M. Welch
Keyword(s):  
Chemical Cues ◽  
Fiddler Crab ◽  
Acoustic Cues

scholarly journals Interactions of ants with native and invasive lady beetles and the role of chemical cues in intraguild interference

Chemoecology ◽  
2021 ◽  
Author(s):  
Roman Bucher ◽  
Laura M. Japke ◽  
Ayse Gül Ünlü ◽  
Florian Menzel
Keyword(s):  
Chemical Cues ◽  
Harmonia Axyridis ◽  
Species Recognition ◽  
Lady Beetle ◽  
Lasius Niger ◽  
Beetle Species ◽  
Beetle Elytra ◽  
Lady Beetles ◽  
Ant Aggression

AbstractThe predator-predator naïveté hypothesis suggests that non-native predators benefit from being unknown to native predators, resulting in reduced intraguild interference with native predators. This novelty advantage should depend on the ability of native predators to recognize cues of non-native predators. Here, we compared ant aggression and lady beetle reaction in four native and the invasive lady beetle species Harmonia axyridis. In addition, we tested whether lady beetle cuticular hydrocarbons (CHCs) are involved in species recognition, which might explain naïveté if the invasive species has a specific CHC profile. To this end, we conducted behavioral assays confronting two native ant species with both living lady beetles and lady beetle elytra bearing or lacking CHCs of different lady beetle species. Finally, we characterized CHC profiles of the lady beetles using GC–MS. In general, the aggression of Lasius niger was more frequent than that of Myrmica rubra and L. niger aggression was more frequent towards most native lady beetle species compared to H. axyridis. The removal of CHCs from lady beetle elytra reduced aggression of both ant species. If CHCs of respective lady beetle species were added on cue-free elytra, natural strength of L. niger aggression could be restored. CHC analyses revealed a distinct cue composition for each lady beetle species. Our experiments demonstrate that the presence of chemical cues on the surface of lady beetles contribute to the strength of ant aggression against lady beetles. Reduced aggression of L. niger towards H. axyridis and reduced avoidance behavior in H. axyridis compared to the equally voracious C. septempunctata might improve the invasive lady beetle’s access to ant-tended aphids.

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