Female reproductive status affecting chimney characteristics and time allocation for surface activities in Uca rosea (Tweedie, 1937) (Brachyura, Ocypodidae)

Crustaceana ◽  
2017 ◽  
Vol 90 (13) ◽  
pp. 1605-1613 ◽  
Author(s):  
Fahmida Wazed Tina ◽  
Mullica Jaroensutasinee ◽  
Krisanadej Jaroensutasinee ◽  
Kanitta Keeratipattarakarn
Keyword(s):  
Time Allocation ◽  
Feeding Rate ◽  
Reproductive Status ◽  
Surface Activities ◽  
Female Reproductive Status ◽  
First Time

We examined the effects of female reproductive status (ovigerous and non-ovigerous) on chimney characteristics and time allocation for surface activities in Uca rosea (Tweedie, 1937) (currently referred to as Tubuca rosea (Tweedie, 1937)). We investigated time spent on feeding, standing, in burrow, surface mating, walking, grooming, and digging of 13 ovigerous and 20 non-ovigerous females of similar-size and measured the diameter, width, and height of their chimneys. Chimneys of ovigerous females were wider and higher than those of non-ovigerous females, but chimney diameters did not differ. Ovigerous females spent less time on feeding and walking, but more time on standing, inside burrows, and mating than non-ovigerous females. Feeding rate/min did not differ between ovigerous and non-ovigerous females. This study reports, for the first time, that reproductive status of females affects chimney characteristics and time allocation for surface activities in U. rosea.

The Occurrence of the New Nolland Mouse, Pseudomys novaehollandiae (Waterhouse), in Tasmania

1980 ◽  
Vol 7 (1) ◽  
pp. 71 ◽  
Author(s):  
GJ Hocking
Keyword(s):  
East Coast ◽  
Fire Regime ◽  
Reproductive Status ◽  
North East ◽  
The North ◽  
Close Relationship ◽  
First Time

Pseudomys nocaehollandiae is recorded for the first time from Tasmania, where it is found to occur in heath and woodland along the north-east coast. The morphological and reproductive status of the specimens collected and their habitat are essentially the same as previously recorded on continental Australia. The close relationship between the distribution of this species and the occurrence of a particular fire regime is stressed.

Photoperiodic responses of four wild-trapped desert rodent species

1998 ◽  
Vol 275 (6) ◽  
pp. R2012-R2022 ◽  
Author(s):  
Hanan A. El-Bakry ◽  
Wafaa M. Zahran ◽  
Timothy J. Bartness
Keyword(s):  
Reproductive Status ◽  
Rodent Species ◽  
Day Length ◽  
Adult Males ◽  
Acomys Cahirinus ◽  
Desert Rodent ◽  
Female Reproductive Status ◽  
Length Changes ◽  
Running Wheels ◽  
Gerbillus Pyramidum

The purpose of this study was to examine the effect of the photoperiod on reproductive status and body and lipid masses in four Egyptian desert rodent species ( Dipodillus dasyurus, Acomys cahirinus, Gerbillus andersoni, and Gerbillus pyramidum). Adult males and females were housed in long days for 11 wk. At that time, one-half of the animals were killed and the remaining animals were moved to short days (SDs) for 11 wk. Some individuals of Gerbillus andersoni and Gerbillus pyramidum had access to running wheels. Testes index and spermatogenesis, but not testis mass, were decreased in all species in SDs. In contrast, SDs did not affect female reproductive status in all species. Exercise stimulated spermatogenesis but did not affect female reproductive status. SDs increased body and lipid masses in male Acomys cahirinus, but not in other species. Collectively, these desert rodent species were responsive to day length changes, but these changes alone did not induce robust alterations in reproductive status and body and lipid masses.

The reproductive status of both sexes affects the frequency of mating and the reproductive success of males in the ball roller beetle Canthon cyanellus cyanellus (Coleoptera: Scarabaeidae)

Behaviour ◽  
2009 ◽  
Vol 146 (11) ◽  
pp. 1499-1512 ◽  
Author(s):  
Mario Favila ◽  
Ivette Chamorro-Florescano
Keyword(s):  
Reproductive Success ◽  
Sperm Competition ◽  
Reproductive Status ◽  
Female Pair ◽  
Female Reproductive Status ◽  
Viable Sperm ◽  
Males And Females

AbstractSeveral studies have shown that males assess female reproductive status and use different mechanisms to increase their reproductive success. However, a male's reproductive status can also affect its own reproductive success. In Canthon cyanellus cyanellus, a male–female pair makes several brood balls during nesting and both care for the brood balls. However, in females that are transported to the nest by males, the spermatheca is often already filled with viable sperm from other males, such that sperm competition is strong. We analyze the effect of the reproductive status of males and females on the frequency of mating during brood ball construction, as well as the reproductive success of males that nest with previously mated females. Virgin and previously mated males copulated with the same frequency before the construction of each brood ball when they nested with virgin females. However, when both types of males nested with previously mated females, the frequency of mating increased before the construction of the first brood ball. The paternity of previously mated males was significantly higher (82%) than that of virgin males (62%). Therefore, the reproductive status of both sexes of C. c. cyanellus affects the frequency of mating and the reproductive success of males.

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