Testing Experimental Results in the Field: Comment on Ficetola and De Bernardi (2005)

Hettyey, Attila; Pearman, Peter B.

doi:10.1111/j.1439-0310.2006.01250.x

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…For example, Clemente et al () showed that naturally coexisting species pairs of Tetranychus spider mites do not exhibit strong reproductive interference, despite the occurrence of heterospecific mating. Similarly, naturally coexisting Rana frogs exhibited no evidence of reproductive interference in nature (Ficetola & De Bernardi, ; but see also Hettyey & Pearman, ), although they may display reproductive interference when one species is extremely rare (Hettyey & Pearman, ; Hettyey et al, ). Similar examples may also be found in amphipods (Cothran et al, ).…”

Section: Transitions Of Demographic and Evolutionary Stabilitiesmentioning

confidence: 99%

When does reproductive interference occur? Predictions and data

Kyogoku

2020

Population Ecology

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Reproductive interference is interspecific sexual interactions that are costly to at least one species involved. Although many studies have reported a substantial fitness cost associated with reproductive interference, suggesting its ecological significance, others have not observed reproductive interference in study species. Reproductive interference that incurs a large fitness cost is more likely to occur during secondary contacts than between long‐coexisting species. I first explain the rationale underlying this prediction using existing literature. Next, I present a conceptual framework to classify pairs of interacting species into one of four states, defined by the ecological and evolutionary stabilities of the species pairs. I discuss how the stability states of species pairs are likely to change over time, along with changes in the demographic and evolutionary role of reproductive interference. I then perform literature survey to test the prediction that reproductive interference should be more prevalent in secondary contact. Finally, I discuss the implications of the proposed conceptual framework and literature survey result.

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Section: Transitions Of Demographic and Evolutionary Stabilitiesmentioning

confidence: 99%

When does reproductive interference occur? Predictions and data

Kyogoku

2020

Population Ecology

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Reproductive interference between Rana dalmatina and Rana temporaria affects reproductive success in natural populations

et al. 2014

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Experimental evidence suggests that reproductive interference between heterospecifics can seriously affect individual fitness; support from field studies for such an effect has, however, remained scarce. We studied reproductive interference in 25 natural breeding ponds in an area where two ranid frogs, Rana dalmatina and Rana temporaria, co-occur. The breeding seasons of the two species usually overlap and males of both species are often found in amplexus with heterospecific females, even though matings between heterospecifics produce no viable offspring. We estimated species abundance ratios based on the number of clutches laid and evaluated fertilization success. In ponds with low spatial complexity and a species abundance ratio biased towards R. temporaria, the average fertilization success of R. dalmatina eggs decreased, while this relationship was not detectable in spatially more complex ponds. Fertilization success of R. temporaria did not decrease with increasing relative numbers of heterospecifics. This asymmetry in fitness effects of reproductive interference may be attributed to R. temporaria males being more competitive in scramble competition for females than R. dalmatina males. Our study is among the first to demonstrate that in natural breeding populations of vertebrates interference among heterospecifics has the potential to substantially lower reproductive success at the population level, which may in turn affect population dynamics.

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