Naslov
Differences in morphometric and life history traits between two related scaly cricket species, with first data for the little-known Paramogoplistes novaki (Orthoptera: Mogoplistidae)

Autori
Rebrina, Fran ; Brigić, Andreja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts / 110th annual meeting of the GERMAN ZOOLOGICAL SOCIETY / - Bielefeld : University of Bielefeld, 2017, 201-201

Skup
110th annual meeting of the GERMAN ZOOLOGICAL SOCIETY

Mjesto i datum
Bielefeld, Njemačka, 12.09.2017. - 15.09.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
NEMA

Sažetak
In a study performed in 2014 along the Krčić River in SE Croatia, altogether 142 scaly cricket specimens were collected, thereof 37 Paramogoplistes novaki and 105 Mogoplistes brunneus. Both species were found only in the karst habitat, M. brunneus along the entire flow and P. novaki exclusively in the lower reach. For the latter, this was the first record in Croatia since its description in 1888. In order to assess the reliability of diagnostic morphometric traits, a thorough comparison between P. novaki and M. brunneus was performed. Namely, the extent of variability of those traits was heretofore insufficiently known for both species. Total body length proved to be unreliable for identification, while commonly used pronotum length to width ratio was found to be reliable only in adult males. However, the shape and several morphometric traits of the subgenital plate, formerly overlooked as diagnostic traits, clearly separated the two species. Lesser variability of the morphometric traits between the sexes, along with several morphological cues, could point out to neotenic origin of P. novaki. Autumn-oriented activity period of P. novaki was much longer than the activity period of M. brunneus, and surface activity maxima of the two species exhibited clear temporal separation, possibly resulting from competition due to niche overlapping. Sex ratios were female-biased in both species, more strongly so in M. brunneus, which could be explained by the higher activity of females in the study area. By providing first substantial insight into morphometric variability and life history of these two little-known species, this study should encourage further research on European scaly crickets.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA