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the potential reproductive rates of males and females and/or (2) a mate familiarity effect that increased reproductive success in successive matings. Further research could investigate relationships between mating pattern and varying intersexual differences in potential repro- ductive rates across

In: Behaviour

Introduction Body size is one of the most significant targets of sexual selection as it is tightly linked with fitness. Competition among males for females and selection of larger males by females may lead to a non-random mating pattern. Large males may also be more successful in male

In: Animal Biology

Mating pattern and hatching success in a population of the Andean frog Hyla labialis Gloria Gutiérrez 1 , Horst Lüddecke 2 1 Departamento de Biología, Universidad de Tunja, Tunja, Colombia e-mail: glolegu@hotmail.com 2 Departamento de Ciencias Biológicas, Universidad de los Andes, A.A. 4976

In: Amphibia-Reptilia

Variation in mating pattern in a population of the Andean frog Hyla labialis Horst Lüddecke Departamento de Ciencias Biológicas, Universidad de los Andes, A.A. 4976, Bogotá, Colombia e-mail: holuddec@uniandes.edu.co Abstract. Unmated frogs and mated pairs from a population of individually

In: Amphibia-Reptilia

common physiological characteristic in amphibians. In the reproduction of various amphibians, there are considerable differences in mating pattern, reproductive frequency, the size of egg and clutch, fertilization mode and the place of incubation and ovulation (Wells, 2007). In amphibians, the mating

In: Animal Biology

THE MATING PATTERNS OF FEMALES WHEN TERRITORIAL DIFFERENCES AMONG MALES ARE REDUCED: A TEST IN THE POLYGYNOUS BEAUGREGORY DAMSELFISH by M. ITZKOWITZ 1,2) , M.J. DRAUD 3) , F. TRIEFENBACH 4) and M. HALEY 5,6) ( 1 Department of Biological Sciences, 31 Williams Hall, Lehigh University, Bethlehem

In: Behaviour

VARIATION IN LEKKING COSTS IN BLACKBUCK (ANTILOPE CERVICAPRA): RELATIONSHIP TO LEK-TERRITORY LOCATION AND FEMALE MATING PATTERNS by KAVITA ISVARAN 1) and YADAVENDRADEV JHALA 2) (Wildlife Institute of India, Dehradun, India) (Acc. 22-X-1999) Summary We studied variation in lekking costs in an

In: Behaviour

Sexually reproductive insects exhibit diverse mating behaviors. However, the mating pattern remains unknown for Panorpodes of Panorpodidae to date. In this study, we investigated the mating behavior and copulatory mechanism of the short-faced scorpionfly Panorpodes kuandianensis Zhong, Zhang and Hua, 2011 for the first time. The results show that the male provides a salivary mass as a nuptial gift to the female and starts to copulate with the female in a V-shaped position, then changes to an end-to-end position by temporarily twisting the female abdominal segments VII−IX by 180°. During mating the basal processes and the basal teeth of the gonostyli and the hypandrium are used to obtain copulation and sustain the coupling of genitalia to secure successful sperm transfer. This unique mating pattern is greatly different from that of other Mecoptera reported and is likely evolved as an adaptation in the context of sexual conflict.

In: Contributions to Zoology
In: The Ottoman Middle East

because the males exhibit parental care. The male carries eggs (possibly from several females) wrapped around his hind limbs until they are ready to hatch. The mating pattern of this species is not random; a significant correlation was found between male snout-vent length and dorsal egg count. Bigger

In: Amphibia-Reptilia