Hummingbird Territory Size Estimation

To estimate the size of the territories (area), we observed the behavior of the owner hummingbird and the locations of the perch, foraging, and chases. Once the observation period was over, we used a GPS (Garmin) to mark points around the perimeter of each activity performed by the territory owner, then calculated the area (square meters) encompassed within the perimeter points. During the observation period, we also counted the number of open flowers contained in each monitored territory.

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Mendiola-Islas V., Lara C., Corcuera P, & Valverde P.L. (2023). The behavior of Broad-tailed hummingbirds is altered by cycles of human activity in a forested area converted into agricultural land. PeerJ, 11, e14953.

Publication 2023

Flowers Perch Perimeter

Corresponding Organization :

Other organizations : Universidad Autónoma Metropolitana, Autonomous University of Tlaxcala

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Variable analysis

independent variables

None explicitly mentioned

dependent variables

Territory size (area in square meters)
Number of open flowers contained in each monitored territory

control variables

None explicitly mentioned

controls

No positive or negative controls were explicitly mentioned in the protocol.

Annotations

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