scholarly journals The unexpected genetic mating system of the red-backed toadlet (Pseudophryne coriacea): A species with prolonged terrestrial breeding and cryptic reproductive behaviour

2018 ◽  
Vol 27 (14) ◽  
pp. 3001-3015 ◽  
Author(s):  
Daniel M. O'Brien ◽  
J. Scott Keogh ◽  
Aimee J. Silla ◽  
Phillip G. Byrne
Keyword(s):  
Mating System ◽  
Reproductive Behaviour ◽  
Genetic Mating System

Monogamy with exceptions: Social and genetic mating system in a bird species with high paternal investment

Behaviour ◽  
2005 ◽  
Vol 142 (8) ◽  
pp. 1093-1114 ◽  
Author(s):  
Peter Pechacek ◽  
Klaus G. Michalek ◽  
Hans Winkler ◽  
Donald Blomqvist
Keyword(s):  
Mating System ◽  
Bird Species ◽  
Paternal Investment ◽  
Genetic Mating System

OFF-TERRITORY FORAYS AND GENETIC MATING SYSTEM OF THE WOOD THRUSH (HYLOCICHLA MUSTELINA)

The Auk ◽  
2008 ◽  
Vol 125 (1) ◽  
pp. 67-75 ◽  
Author(s):  
MELISSA L. EVANS ◽  
BRIDGET J. M. STUTCHBURY ◽  
BONNIE E. WOOLFENDEN
Keyword(s):  
Mating System ◽  
Hylocichla Mustelina ◽  
Wood Thrush ◽  
Genetic Mating System

Breaking the rules: sex roles and genetic mating system of the pheasant coucal

Oecologia ◽  
2011 ◽  
Vol 167 (2) ◽  
pp. 413-425 ◽  
Author(s):  
G. Maurer ◽  
M. C. Double ◽  
O. Milenkaya ◽  
M. Süsser ◽  
R. D. Magrath
Keyword(s):  
Mating System ◽  
Sex Roles ◽  
Genetic Mating System

scholarly journals Testes size, testosterone production and reproductive behaviour in a natural mammalian mating system

2011 ◽  
Vol 81 (1) ◽  
pp. 296-305 ◽  
Author(s):  
Brian T. Preston ◽  
Ian R. Stevenson ◽  
Gerald A. Lincoln ◽  
Steven L. Monfort ◽  
Jill G. Pilkington ◽  
...  
Keyword(s):  
Mating System ◽  
Reproductive Behaviour ◽  
Testosterone Production ◽  
Testes Size

scholarly journals Parentage Assignment Reveals Multiple Paternity in the Critically-Endangered Guatemalan Beaded Lizard (Heloderma Charlesbogerti)

2021 ◽  
Author(s):  
Brenna A Levine ◽  
Robert Hill ◽  
Joseph Mendelson ◽  
Warren Booth
Keyword(s):  
Genetic Diversity ◽  
Mating System ◽  
Prediction Models ◽  
Multiple Paternity ◽  
Parentage Analysis ◽  
Multiple Sexual Partners ◽  
Species Of Conservation Concern ◽  
In The Wild ◽  
Genetic Mating System ◽  
Conservation Concern

Abstract Within captive management programs for species of conservation concern, understanding the genetic mating system is of fundamental importance, given its role in generating and maintaining genetic diversity and promoting opportunities for sperm competition. If a goal of a conservation program is reintroduction, knowledge of the mating system may also inform prediction models aimed at understanding how genetic diversity may be spatially organized, thus informing decisions regarding where and which individuals should be released in order to maximize genetic diversity in the wild population. Within captive populations, such information may also influence how animals are maintained in order to promote natural behaviors. Here we investigate the genetic mating system of the Guatemalan beaded lizard, Heloderma charlesbogerti, a member of a genus lacking such information. A group of adult male and female H. charlesbogerti were co-habited for five years during the species perceived breeding season. Through genomic parentage analysis, 50% of clutches comprising multiple offspring were found to result from polyandry, with up to three males siring offspring within single clutches. Furthermore, males were found to be polygamous both within and across seasons, and females would exhibit promiscuity across seasons. As such, within this captive environment, where opportunities existed for mating with multiple sexual partners, the genetic mating system was found to be highly promiscuous, with multiple paternity common within clutches. These findings are novel for the family Helodermatidae, and the results have broader implications about how reproductive opportunities should be managed within captive conservation programs.

Social Organisation in the Rufous Bettong, Aepyprymnus Rufescens

1996 ◽  
Vol 44 (1) ◽  
pp. 9 ◽  
Author(s):  
H Frederick ◽  
CN Johnson
Keyword(s):  
Mating System ◽  
Close Contact ◽  
Reproductive Behaviour ◽  
Social Organisation ◽  
Overt Aggression ◽  
Association Patterns ◽  
Intimate Knowledge ◽  
Males And Females ◽  
Almost All

This study examined association patterns and reproductive behaviour in a sexually monomorphic potoroid marsupial, the rufous bettong, Aepyprymnus rufescens. A total of 29 individuals was marked, and 22 of these were observed regularly over a six-month period; these 22 individuals accounted for almost all the animals using the study area. Rufous bettongs at this site were predominantly solitary (71% of sightings were of single animals) and groups, when they formed, were generally small (maximum of six individuals). Most groups of two were male-female pairs, and unisex groups occurred significantly less often than expected. These male-female groups formed as a result of sexual investigations of females by males, and were shore-lived. Analysis of the frequency with which particular males and females were seen together (excluding occasions when females were in oestrus) showed that most males did not persistently associate with any particular female. Instead, they appeared to maintain transitory contact with as many females as possible. However, three pairs were regularly seen together, suggesting that some males may maintain especially close contact with particular females. Females as they approached oestrus were followed continually by several males, with one male following very closely and preventing others from approaching. In two well-studied cases, the male who defended priority of access to the female was the same individual who had most often associated with that female when not in oestrus. These males demonstrated intimate knowledge of the nesting locations of the females and were able to join them very early each evening, and defended them against other males with little overt aggression. The mating system in this population appears to be promiscuous, but with a hint of monogamy arising from the tendency of some males to persistently investigate and ultimately to guard sexual access to certain individual females.

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