Citizen science perceptions into the distribution and impacts of the Common Myna (Acridotheres tristis) in Jordan

Abstract

The Common Myna (Acridotheres tristis) is a globally recognized invasive alien species with documented ecological and social impacts. This study employed a citizen science approach to investigate the distribution and perceived ecological and economic effects of the Common Myna in Jordan. An online questionnaire yielded 201 valid responses from all 12 governorates, of which only 50.2% of respondents who recognized the species were included in the subsequent data analysis. Reports from 113 localities indicated that the species is concentrated in urbanized areas of northwestern Jordan. Increased sightings since 2019 suggest population growth and continued expansion across human-modified landscapes. Increased occurrences near protected and in agricultural areas raise ecological concerns. Respondents identified competition with native birds as the main impact, while effects on crops and human health (e.g., noise) were perceived as minor. Urban expansion and food waste were viewed as key drivers of the spread. Beyond data collection, the survey also functioned as an awareness tool, highlighting the dual value of citizen science for both monitoring and education. Overall, the study highlights the importance of implementing coordinated management measures that integrate regulation, waste management, and public awareness.