Intrinsic Male Mating Capacity Is Limited in the Plethodontid Salamander, Desmognathus ochrophaeus

1988 ◽  
Vol 22 (4) ◽  
pp. 394 ◽  
Author(s):  
Paul A. Verrell
Keyword(s):  
Male Mating ◽  
Plethodontid Salamander ◽  
Desmognathus Ochrophaeus

Tests for age and size effects on male mating success in a plethodontid salamander

1988 ◽  
Vol 9 (2) ◽  
pp. 135-144 ◽  
Author(s):  
Hélène Francillon-Vieillot ◽  
Lynne D. Houck
Keyword(s):  
Body Size ◽  
Mating Success ◽  
Size Effects ◽  
Equal Access ◽  
Male Mating ◽  
Male Mating Success ◽  
Plethodontid Salamander ◽  
Age Estimates ◽  
Desmognathus Ochrophaeus

AbstractWe used the skeletochronological method to obtain estimates of age for male Desmognathus ochrophaeus (Urodela: Plethodontidae). Age estimates were compared with body size and with a measure of matiing success obtained from an earlier study. Body size is significantly correlated with age, but there is much variation in age among animals having the same body size. Mating success was not significantly correlated either with size or age when males had equal access to potentially receptive females.

Multiple mating by females is not dependent on body size in the salamander Desmognathus ochrophaeus

1996 ◽  
Vol 17 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Cara Shillington ◽  
Paul Verrell
Keyword(s):  
Mate Choice ◽  
Sperm Competition ◽  
Multiple Mating ◽  
Natural Populations ◽  
Mating Frequency ◽  
Published Data ◽  
Multiple Partners ◽  
Plethodontid Salamander ◽  
The Face ◽  
Desmognathus Ochrophaeus

AbstractMale mate choice for particular "classes" of females may be devalued if chosen females are more likely to mate with multiple partners (thus precipitating sperm competition). Larger females carry greater numbers of eggs available for fertilization in the plethodontid salamander Desmognathus ochrophaeus, and are chosen by males in simultaneous mate-choice tests. We found no difference in mating frequency between 12 large females and 12 smaller females across 576 male-female encounters. Given limited published data on patterns of sperm utilization in this salamander, we conclude that male choice of more fecund partners may be advantageous even in the face of multiple mating by females and resultant sperm competition. Studies of natural populations of salamanders are required to confirm this conclusion.

Alarm response by a plethodontid salamander (Desmognathus ochrophaeus): Conspecific and heterospecific “Schreckstoff”

1994 ◽  
Vol 20 (11) ◽  
pp. 2751-2759 ◽  
Author(s):  
William I. Lutterschmidt ◽  
Glenn A. Marvin ◽  
Victor H. Hutchison
Keyword(s):  
Alarm Response ◽  
Plethodontid Salamander ◽  
Desmognathus Ochrophaeus

The Effects of the sphragis on male and female genitalia in Acraea (Nymphalidae) butterflies

2020 ◽  
Vol 22 ◽  
Author(s):  
Shannon L Summers ◽  
Akito Y Kawahara ◽  
Ana P. S. Carvalho
Keyword(s):  
Interspecific Variation ◽  
Sperm Storage ◽  
Male Mating ◽  
Museum Collections ◽  
Storage Organ ◽  
Mating Plug ◽  
Males And Females ◽  
Comparison And Analysis ◽  
Imagej Software ◽  
Sexually Antagonistic Coevolution

Male mating plugs have been used in many species to prevent female re-mating and sperm competition. One of the most extreme examples of a mating plug is the sphragis, which is a large, complex and externalized plug found only in butterflies. This structure is found in many species in the genus Acraea (Nymphalidae) and provides an opportunity for investigation of the effects of the sphragis on the morphology of the genitalia, which is poorly understood. This study aims to understand morphological interspecific variation in the genitalia of Acraea butterflies. Using specimens from museum collections, abdomen dissections were conducted on 19 species of Acraea: 9 sphragis bearing and 10 non-sphragis bearing species. Genitalia imaging was performed for easier comparison and analysis and measurements of genitalia structures was done using ImageJ software. Some distinguishing morphological features in the females were found. The most obvious difference is the larger and more externalized copulatory opening in sphragis bearing species, with varying degrees of external projections. Females of the sphragis bearing species also tend to have a shorter ductus (the structure that connects the copulatory opening with the sperm storage organ) than those without the sphragis. These differences may be due to a sexually antagonistic coevolution between the males and females, where the females evolve larger and more difficult to plug copulatory openings and the males attempt to prevent re-mating with the sphragis.

RELATIVE ABUNDANCE AND THE SPECIES-SPECIFIC REINFORCEMENT OF MALE MATING PREFERENCE IN THE CHRYSOCHUS (COLEOPTERA: CHRYSOMELIDAE) HYBRID ZONE

Evolution ◽  
2005 ◽  
Vol 59 (12) ◽  
pp. 2639 ◽  
Author(s):  
Merrill A. Peterson ◽  
Barbara M. Honchak ◽  
Stefanie E. Locke ◽  
Timothy E. Beeman ◽  
Jessica Mendoza ◽  
...  
Keyword(s):  
Relative Abundance ◽  
Hybrid Zone ◽  
Mating Preference ◽  
Male Mating ◽  
Species Specific
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