Ấn phẩm:
Population status and ecological features of the endemic and critically endangered ta kou bent-toed gecko (Cyrtodactylus takouensis) in Vietnam
Đang tải...
Xem mô tả
4
Xem & Tải
22
Nhan đề khác
Tóm tắt
Population estimates and microhabitat characteristics are widely used to support conservation decisions. However, there had been no surveys focusing on the population status of the endemic and Critically Endangered Ta Kou bent-toed gecko to inform conservation actions across its distribution range. In this study, we conducted the first field surveys to assess its population status using the mark–capture–recapture method, determine microhabitat characteristics, and identify anthropogenic threats to the species’ survival in Binh Thuan Province, Vietnam. Based on our study results, Cyrtodactylus takouensis was only recorded on granitic rocks at various elevations from 265 to 694 m a.s.l. In total, 148 individuals of C. takouensis were detected in the dry season, and 95 individuals of C. takouensis were encountered in the rainy season. Of these, 73 and 51 adults were documented during the two seasons, respectively. The estimated total population size of C. takouensis was 315 individuals in the dry season (95% confidence intervals ranging between 189 and 581 individuals), whereas it comprised 149 individuals, calculated using the Petersen–Lincoln and Schnabel formula, in the rainy season (95% confidence intervals ranging between 108 and 361 individuals). The estimated difference in total population size was probably due to several factors, such as the rapid growth of interlaced vines making parts of the surveyed transects inaccessible during the rainy season, weather variations, and differences in survey effort and detection probability. Additionally, several microhabitat variables and species behaviors were investigated in both seasons. However, humidity was the only significant environmental variable when compared between the two seasons. Moreover, we found that tourism activities and parasites could pose threats to C. takouensis on Ta Kou Mountain. However, no structured or quantitative framework was employed to assess these risks in this study. Further research is needed to quantify factors affecting the species’ survival.
Tác giả
Ngo, Thi Hanh
Người hướng dẫn
Nơi xuất bản
Nhà xuất bản
Năm xuất bản
2025
ISSN tạp chí
Nhan đề tập
Từ khóa chủ đề
Agriculture
Bộ sưu tập
Tài liệu tham khảo
Thông tin bản quyền
Tệp tin
Population Status and Ecological Features.pdf
Dung lượng: 7.31 MBĐịnh dạng: pdf
Lượt xem: 22 Lượt tải: 0