2019
DOI: 10.1016/j.ygcen.2019.03.002
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Non-invasive monitoring of physiological stress in an afrotropical arid-zone passerine bird, the southern pied babbler

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Cited by 17 publications
(30 citation statements)
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“…We selected all of the samples collected after 3 pm (afternoon samples, n = 114) and then selected another 114 from the samples collected before 9 am (morning samples). Using afternoon samples collected after 3pm allowed for sufficient time between exposure to a temperature stressor during the hottest time of the day and detecting a measurable response in fGCM levels in babblers after ~ 2h (see Jepsen et al, 2019). Afternoon samples were collected on days distributed across a range of T max (28 °C – 41 °C), and from individuals from different group sizes (2-8 adults), sexes (n = 43 males, 63 females, 8 unknown sex), ranks (n = 52 dominant, 62 subordinate) breeding stages (n = 45 from breeding groups, 69 from non-breeding groups).…”
Section: Methodsmentioning
confidence: 99%
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“…We selected all of the samples collected after 3 pm (afternoon samples, n = 114) and then selected another 114 from the samples collected before 9 am (morning samples). Using afternoon samples collected after 3pm allowed for sufficient time between exposure to a temperature stressor during the hottest time of the day and detecting a measurable response in fGCM levels in babblers after ~ 2h (see Jepsen et al, 2019). Afternoon samples were collected on days distributed across a range of T max (28 °C – 41 °C), and from individuals from different group sizes (2-8 adults), sexes (n = 43 males, 63 females, 8 unknown sex), ranks (n = 52 dominant, 62 subordinate) breeding stages (n = 45 from breeding groups, 69 from non-breeding groups).…”
Section: Methodsmentioning
confidence: 99%
“…However, blood collection can be stressful for the study animal (Pavlova et al, 2018; Small et al, 2017), and handling stress risks artificially elevating measurements of stress hormones. Alternative non-invasive methods based on quantifying glucocorticoid metabolites in droppings, hair, feathers, or saliva have attracted much attention and have been validated for an increasing number of species (Sheriff et al, 2011; Palme, 2019; Dantzer et al, 2010; Hämäläinen, Heistermann, Fenosoa & Kraus, 2014), including Southern pied babblers ( Turdoides bicolor ; Jepsen et al, 2019). Measurement of adrenocortical activity via faecal glucocorticoid metabolites (fGCMs) can eliminate the need for handling of study animals altogether, thereby avoiding artificially increasing the circulating glucocorticoid levels of the study animals (Hodges et al 2010), provided that the collection of droppings is not stressful to the animal.…”
Section: Introductionmentioning
confidence: 99%
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“…They have been used to investigate 13 broad areas of wildlife monitoring in Australia over the last twenty-four years [24? ]: However, the field of view and coverage of camera traps is limited, and it has not proved to be a reliable tool to monitor cryptic pest animals and their activities [33]. An alternative way to airborne monitoring through unmanned aerial vehicles (UAVs) and helicopters [1,4,9,10,18,32].…”
Section: Related Workmentioning
confidence: 99%
“…Recent advancements in drone and imaging technologies have enabled non-invasive monitoring of pest animals [4,10,18,32]. However, manual detection of pest animals, habitat identification and estimation of pest population size is cumbersome as it requires frame by frame analysis of hours of video data.…”
Section: Introductionmentioning
confidence: 99%