Temporal variations in the singing activity and the detection of Turtle DovesStreptopelia turtur: implications for surveys

Autor:	F. Buner, J. Calladine, N.J. Aebischer
Rok vydání:	1999
Předmět:	biology Ecology Streptopelia Zoology biology.organism_classification Streptopelia turtur law.invention law Abundance (ecology) Sunrise Turtle (robot) Singing Ecology Evolution Behavior and Systematics Dove Nature and Landscape Conservation Morning
Zdroj:	Bird Study. 46:74-80
ISSN:	1944-6705 0006-3657
Popis:	Daily and seasonal variations in the singing activity of the Turtle Dove and the detectability of territory-holding individuals were examined. The use of registrations of singing birds only was more reliable in identifying territories than registrations of all birds. Approximately 70% of known territories were detected during the two hours after sunrise, with less than 30% detected during the remainder of the day. Census work to determine density should therefore only be undertaken in the early morning. The relatively constant but low detection rate (10–20%) later than five hours after sunrise implies that the collection of data for calculation of indices of abundance can be made at this time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::354cdbca59a35c231a52abb8041ed742 https://doi.org/10.1080/00063659909461116 Zobrazit plný text záznamu