Interspecific competition leads to more long-winged morphs in two sympatric cricket species

Coexistence mechanisms for species competing for the same resource include resource partitioning, neutrality, microhabitat preference, and trade-offs between competitive and dispersal abilities. We explored the coexistence mechanism of two species of trigonidiid crickets (Dianemobius nigrofasciatus and Polionemobius taprobanensis) that share the same habitat. Dianemobius nigrofasciatus is more common in areas where the ground surface is somewhat open, while P. taprobanensis is more common in more densely vegetated environments. The effects of micro-environmental differences, similarities in competitive ability, and investment in dispersal ability under interspecific competitive conditions on the coexistence of these species were examined using laboratory experiments. Both P. taprobanensis and D. nigrofasciatus performed better in vegetated environments. Although the adult emergence of D. nigrofasciatus was delayed by the presence of P. taprobanensis, the emergence rate of P. taprobanens..., We explored the coexistence mechanism of two species of trigonidiid crickets (Dianemobius nigrofasciatus and Polionemobius taprobanensis) that share the same habitat. Dianemobius nigrofasciatus is more common in areas where the ground surface is somewhat open, while P. taprobanensis is more common in more densely vegetated environments. The effects of micro-environmental differences, similarities in competitive ability, and investment in dispersal ability under interspecific competitive conditions on the coexistence of these species were examined using laboratory experiments.
To determine whether the density of heterospecific crickets affected survival or adult emergence rates during the nymphal stage, a laboratory experiment was carried out in plastic containers (height = 10 cm, diameter = 10cm). Newly emerged first instar nymphs were collected within 72 hours. Estimated population density in the field was 3-4 individuals/m2 (see supplemental materials), but this is the density of adult..., , # Data from: Interspecific competition leads to more long-winged morphs in two sympatric cricket species

[https://doi.org/10.5061/dryad.866t1g20s](https://doi.org/10.5061/dryad.866t1g20s)

## Description of the data and file structure

This study examined how two cricket species, *Dianemobius nigrofasciatus* and *Polionemobius taprobanensis*, coexist in shared habitats with differing vegetation density. Laboratory experiments tested the effects of microhabitat, interspecific competition, and dispersal traits on survival and development. Nymphs were reared under controlled conditions across different densities and habitat treatments. Survival rates, adult emergence, wing morph, and tibial length were measured to assess competitive dynamics and body size.

### Files and variables

#### File: size.txt

**Description: size** 

##### Variables

* s: P. taprobanensis
* m: D. nigrofasciatus
* density_D: initial number of  D. nigrofasciatus per container
* densityh_P: initial number of P. tapr...,