Abstract
Proper timing of the reproductive cycle to assure mate access is critical to optimizing success. We tested the importance of male presence on the progression of the female reproductive cycle in the blood python, Python curtus. Upon reaching sexual maturity, captive-born, individually raised virgin female snakes were housed with either a conspecific male or female. At the onset of the reproductive season (late autumn), all females initiated early follicular growth; however, only females housed with males initiated vitellogenesis, and these females ovulated and oviposited viable eggs. Females not housed with males showed arrested follicular development in that they maintained hydrated, nonvitellogenic follicles that underwent follicular regression after three months. The requirement for male presence prior to vitellogenesis is premature for fertilization but assures the female of a mate prior to mobilizing substantial energy stores into reproduction. Once an energy investment is made, females commit to completing the cycle.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1138-1141 |
| Number of pages | 4 |
| Journal | Copeia |
| Issue number | 4 |
| State | Published - Dec 20 2001 |
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ASJC Scopus subject areas
- Animal Science and Zoology
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Effect of male presence on reproductive activity in captive female blood pythons, Python curtus. / Denardo, Dale; Autumn, K.
In: Copeia, No. 4, 20.12.2001, p. 1138-1141.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of male presence on reproductive activity in captive female blood pythons, Python curtus
AU - Denardo, Dale
AU - Autumn, K.
PY - 2001/12/20
Y1 - 2001/12/20
N2 - Proper timing of the reproductive cycle to assure mate access is critical to optimizing success. We tested the importance of male presence on the progression of the female reproductive cycle in the blood python, Python curtus. Upon reaching sexual maturity, captive-born, individually raised virgin female snakes were housed with either a conspecific male or female. At the onset of the reproductive season (late autumn), all females initiated early follicular growth; however, only females housed with males initiated vitellogenesis, and these females ovulated and oviposited viable eggs. Females not housed with males showed arrested follicular development in that they maintained hydrated, nonvitellogenic follicles that underwent follicular regression after three months. The requirement for male presence prior to vitellogenesis is premature for fertilization but assures the female of a mate prior to mobilizing substantial energy stores into reproduction. Once an energy investment is made, females commit to completing the cycle.
AB - Proper timing of the reproductive cycle to assure mate access is critical to optimizing success. We tested the importance of male presence on the progression of the female reproductive cycle in the blood python, Python curtus. Upon reaching sexual maturity, captive-born, individually raised virgin female snakes were housed with either a conspecific male or female. At the onset of the reproductive season (late autumn), all females initiated early follicular growth; however, only females housed with males initiated vitellogenesis, and these females ovulated and oviposited viable eggs. Females not housed with males showed arrested follicular development in that they maintained hydrated, nonvitellogenic follicles that underwent follicular regression after three months. The requirement for male presence prior to vitellogenesis is premature for fertilization but assures the female of a mate prior to mobilizing substantial energy stores into reproduction. Once an energy investment is made, females commit to completing the cycle.
UR - http://www.scopus.com/inward/record.url?scp=0035924502&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035924502&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035924502
SP - 1138
EP - 1141
JO - Copeia
JF - Copeia
SN - 0045-8511
IS - 4
ER -