Sperm competition and the level of polyandry in a bushcricket with large nuptial gifts

Hockham, Leon R.; Graves, Jeff A.; Ritchie, Michael G.

doi:10.1007/s00265-004-0838-x

Cited by 21 publications

(27 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While previous studies of orthopteran insects have used microsatellite analysis to estimate the degree of polyandry and paternity skew in field‐mated females (Hockham et al . ; Bretman & Tregenza ; Simmons et al . ; Simmons & Beveridge ; Oneal & Knowles ; Turnell & Shaw ,b), none of these have used the relative position of sperm within the female's reproductive tract to predict the pattern of sperm use.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Paternity analysis of wild‐caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera

et al. 2017

View full text Add to dashboard Cite

In species where females store sperm, males may try to influence paternity by the strategic placement of sperm within the female's sperm storage organ. Sperm may be mixed or layered in storage organs, and this can influence sperm use beyond a 'fair raffle'. In some insects, sperm from different matings is packaged into discrete packets (spermatodoses), which retain their integrity in the female's sperm storage organ (spermatheca), but little is known about how these may influence patterns of sperm use under natural mating conditions in wild populations. We examined the effect of the size and position of spermatodoses within the spermatheca and number of competing ejaculates on sperm use in female dark bushcrickets (Pholidoptera griseoaptera) that had mated under unmanipulated field conditions. Females were collected near the end of the mating season, and seven hypervariable microsatellite loci were used to assign paternity of eggs laid in the laboratory. Females contained a median of three spermatodoses (range 1-6), and only six of the 36 females contained more than one spermatodose of the same genotype. Both the size and relative placement of the spermatodoses within the spermatheca had a significant effect on paternity, with a bias against smaller spermatodoses and those further from the single entrance/exit of the spermatheca. A higher number of competing males reduced the chances of siring offspring for each male. Hence, both spermatodose size and relative placement in the spermatheca influence paternity success.

show abstract

Section: Discussionmentioning

confidence: 99%

“…) in a variety of taxa including, for example, arthropods such as crickets and bushcrickets (Orthoptera: Ensifera; Bretman & Tregenza ; Hockham et al . ; Simmons et al . ; Simmons & Beveridge ; Turnell & Shaw ,b; Oneal & Knowles ).…”

Section: Introductionmentioning

confidence: 99%

Paternity analysis of wild‐caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In Orthopterans, patterns of paternity bias are predomi-nantly due to the relative number of sperm stored from different males at the time of fertilization (Table 3). In several species, there are mechanisms of active sperm displacement (Ono et al, 1989;Helversen & Helversen, 1991), but more typically there is variation in the amount of sperm transferred (Sakaluk, 1986;Gwynne & Snedden, 1995;Sakaluk & Eggert, 1996), or passive sperm loss (Parker & Smith, 1975;Ló pez-Leó n et al, 1993;Reinhardt, 2000;Reinhardt & Meister, 2000;Zhu & Tanaka, 2002;Hockham et al, 2004). However, intermediate values of P 2 are observed in most crickets (Backus & Cade, 1986;Simmons, 1986;Gregory & Howard 1994;Morrow & Gage, 2001;Bussiè re et al, 2006;Bretman et al, 2009;Hall et al, 2010).…”

Section: No Sperm Precedence In Gryllus Pennsylvanicus Femalesmentioning

confidence: 99%

Post‐mating prezygotic barriers to gene exchange between hybridizing field crickets

Larson¹,

Hume²,

Andrés³

et al. 2011

J of Evolutionary Biology

View full text Add to dashboard Cite

Studies of sexual selection in speciation have traditionally focused on mate preference, with less attention given to traits that act between copulation and fertilization. However, recent work suggests that post‐mating prezygotic barriers may play an important role in speciation. Here, we evaluate the role of such barriers in the field crickets, Gryllus firmus and Gryllus pennsylvanicus. Gryllus pennsylvanicus females mated with G. firmus males produce viable, fertile offspring, but when housed with both species produce offspring sired primarily by conspecifics. We evaluate patterns of sperm utilization in doubly mated G. pennsylvanicus females and find no evidence for conspecific sperm precedence. The reciprocal cross (G. firmus female × G. pennsylvanicus male) produces no progeny. Absence of progeny reflects a barrier to fertilization rather than reduced sperm transfer, storage or motility. We propose a classification scheme for mechanisms underlying post‐mating prezygotic barriers similar to that used for premating barriers.

show abstract

“…Such starkly bimodal distributions of P 2 have now been documented across many taxa (reviewed by Simmons [4]; Poecilia reticulata guppies [72]; Ephippiger ephippiger bushcrickets [73];…”

Section: Discussionmentioning

confidence: 99%

Determinants of reproductive success across sequential episodes of sexual selection in a firefly

South

Lewis

2012

Proc. R. Soc. B.

View full text Add to dashboard Cite

Because females often mate with multiple males, it is critical to expand our view of sexual selection to encompass pre-, peri-and post-copulatory episodes to understand how selection drives trait evolution. In Photinus fireflies, females preferentially respond to males based on their bioluminescent courtship signals, but previous work has shown that male paternity success is negatively correlated with flash attractiveness. Here, we experimentally manipulated both the attractiveness of the courtship signal visible to female Photinus greeni fireflies before mating and male nuptial gift size to determine how these traits might each influence mate acceptance and paternity share. We also measured pericopulatory behaviours to examine their influence on male reproductive success. Firefly males with larger spermatophores experienced dual benefits in terms of both higher mate acceptance and increased paternity share. We found no effect of courtship signal attractiveness or pericopulatory behaviour on male reproductive success. Taken together with previous results, this suggests a possible trade-off for males between producing an attractive courtship signal and investing in nuptial gifts. By integrating multiple episodes of sexual selection, this study extends our understanding of sexual selection in Photinus fireflies and provides insight into the evolution of male traits in other polyandrous species.

show abstract

Sperm competition and the level of polyandry in a bushcricket with large nuptial gifts

Cited by 21 publications

References 30 publications

Paternity analysis of wild‐caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera

Paternity analysis of wild‐caught females shows that sperm package size and placement influence fertilization success in the bushcricket Pholidoptera griseoaptera

Post‐mating prezygotic barriers to gene exchange between hybridizing field crickets

Determinants of reproductive success across sequential episodes of sexual selection in a firefly

Contact Info

Product

Resources

About