Biology 3446B Study Guide - Midterm Guide: Plasticine, Post Hoc Analysis, Telemetry
18 Feb 2016
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Wildlife ecology techniques notes: effects of radiotransmitters and plasticine bands on. Individual markers are vital in understanding the behavior, demography, and survival of birds, but markers may influence their survival. Objectives of this study were to test for effects of markers and measure the strength of any observed effects on duckling survival. Authors banded 572-day-old mallard (anas platyhunchos) ducklings from 85 broods with plasticine-filled leg bands in. 82 hatchling malards from 43 broods were marked with 1. 8-g backmounted prong-and-suture transmitters in 2006. Survival probabilities of marked ducklings and 621 unmarked ducklings from 110 broods were compare, where only the female was radio-marked using the nest survival module in. Program mark: the best supported model recognized deleterious effects of both radiotransmitters and plasticine bands. Cumulative survival to 30 d of age for unmarked ducklings averaged 0. 22 in 2006 and 0. 20 in 2007. was 0. 14 and 0. 13, respectively: 30 d survival of banded ducklings during these 2 years.
