Marmoset thông thường (Callithrix jacchus) không sử dụng thông tin xã hội trong ba nhiệm vụ tìm kiếm thức ăn xã hội đồng thời

Animal Cognition - Tập 10 - Trang 149-158 - 2006
Bernhard Voelkl1, Ludwig Huber1
1Department for Behaviour, Neurobiology and Cognition, Faculty of Life Sciences, University of Vienna, Vienna, Austria

Tóm tắt

Việc kiếm ăn theo nhóm được cho là làm tăng hiệu quả tìm kiếm thức ăn, vì các cá nhân có thể thu được lợi ích từ thông tin công khai qua việc quan sát các hoạt động kiếm ăn của các thành viên trong nhóm khác. Chúng tôi đã thực hiện một loạt các thí nghiệm với loài marmoset thông thường (Callithrix jacchus) đang bị nuôi nhốt để điều tra mức độ mà các marmoset sử dụng thông tin xã hội về vị trí thức ăn khi kiếm ăn đồng thời với các cá thể cùng loài. Các đối tượng đã được đối mặt với các cá thể trình diễn có quyền lực và kém quyền lực trong ba thí nghiệm khác nhau về lượng thông tin về vị trí thức ăn mà các trình diễn viên có thể cung cấp. Trong cả ba thí nghiệm, hiệu suất của các đối tượng trong điều kiện xã hội không được cải thiện so với điều kiện kiểm soát không xã hội. Bởi vì chúng tôi có thể loại trừ hành vi ăn cắp thức ăn và sự thay thế hung hăng như những lời giải thích, chúng tôi lập luận rằng xu hướng của các đối tượng trong việc cạnh tranh rải rác bằng cách tránh né người khác và phân tán khắp khu vực kiếm ăn dường như cản trở hoặc che giấu việc thu thập thông tin xã hội về vị trí của các khu vực có phần thưởng.

Từ khóa

#thông tin xã hội #kiếm ăn theo nhóm #marmoset #hành vi xã hội #cạnh tranh ngầm

Tài liệu tham khảo

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