Diversity in body size, bioacoustic traits, and cuticular hydrocarbon profiles in Isophya autumnalis populations

This study investigates the variations in body size, bioacoustic traits, and cuticular hydrocarbon (CHC) profiles in different populations of the bush cricket species Isophya autumnalis Karaba & gbreve;, & gbreve; , 1962. Within-population body size variations, particularly those associated with distinct habitat dif-- ferences and climate shifts within their local distribution ranges, suggest that ecological factors affect morphological characteristics. Sexual size di-- morphism (SSD) in I. autumnalis may affect reproductive behavior and strategies, potentially influenced by the bioacoustic environment. While male calling songs exhibit temporal variations across populations, sug-- gesting differences among allopatric populations, CHC profiles, known to undergo selection under various climatic conditions, also vary noticeably across local populations. These findings highlight the importance of un-- derstanding within-species variations for the conservation of Isophya and similar taxa in the face of habitat threats. Overall, this study contributes to a comprehensive understanding of how morphology and bioacoustic be-- havioral traits are shaped over short distances in allopatric populations of species with limited mobility, such as I. autumnalis, , providing insights into adaptation processes and highlighting the urgency of conservation efforts for endemic species in Anatolia.