Assessing nest attentiveness of Common Terns via video cameras and temperature loggers

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dc.contributor.authorSullivan, Jeffery D.
dc.contributor.authorMarbán, Paul R.
dc.contributor.authorMullinax, Jennifer M.
dc.contributor.authorBrinker, David F.
dc.contributor.authorMcGowan, Peter C.
dc.contributor.authorCallahan, Carl R.
dc.contributor.authorProsser, Diann J.
dc.date.accessioned2021-04-01T19:41:20Z
dc.date.available2021-04-01T19:41:20Z
dc.date.issued2020-07-08
dc.description.abstractWhile nest attentiveness plays a critical role in the reproductive success of avian species, nest attentiveness data with high temporal resolution is not available for many species. However, improvements in both video monitoring and temperature logging devices present an opportunity to increase our understanding of this aspect of avian behavior. To investigate nest attentiveness behaviors and evaluate these technologies, we monitored 13 nests across two Common Tern (Sterna hirundo) breeding colonies with a paired video camera - temperature logger approach, while monitoring 63 additional nests with temperature loggers alone. Observations occurred from May to August of 2017 on Poplar (Chesapeake Bay, Maryland, USA) and Skimmer Islands (Isle of Wight Bay, Maryland, USA). We examined data respective to four times of day: Morning (civil dawn‒11:59), Peak (12:00‒16:00), Cooling (16:01‒civil dusk), and Night (civil dusk‒civil dawn). While successful nests had mostly short duration off-bouts and maintained consistent nest attentiveness throughout the day, failed nests had dramatic reductions in nest attentiveness during the Cooling and Night periods (p < 0.05) with one colony experiencing repeated nocturnal abandonment due to predation pressure from a Great Horned Owl (Bubo virginianus). Incubation appeared to ameliorate ambient temperatures during Night, as nests were significantly warmer during Night when birds were on versus off the nest (p < 0.05). Meanwhile, off-bouts during the Peak period occurred during higher ambient temperatures, perhaps due to adults leaving the nest during the hottest periods to perform belly soaking. Unfortunately, temperature logger data alone had limited ability to predict nest attentiveness status during shorter bouts, with results highly dependent on time of day and bout duration. While our methods did not affect hatching success (p > 0.05), video-monitored nests did have significantly lower clutch sizes (p < 0.05). The paired use of iButtons and video cameras enabled a detailed description of the incubation behavior of COTE. However, while promising for future research, the logistical and potential biological complications involved in the use of these methods suggest that careful planning is needed before these devices are utilized to ensure data is collected in a safe and successful manner.en_US
dc.description.urihttps://doi.org/10.1186/s40657-020-00208-7
dc.identifierhttps://doi.org/10.13016/ba8b-yhpb
dc.identifier.citationSullivan, J.D., Marbán, P.R., Mullinax, J.M. et al. Assessing nest attentiveness of Common Terns via video cameras and temperature loggers. Avian Res 11, 22 (2020).en_US
dc.identifier.urihttp://hdl.handle.net/1903/26940
dc.language.isoen_USen_US
dc.publisherSpringer Natureen_US
dc.relation.isAvailableAtCollege of Agriculture & Natural Resourcesen_us
dc.relation.isAvailableAtEnvironmental Science & Technologyen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.subjectCommon Ternen_US
dc.subjectiButtonen_US
dc.subjectNest attentivenessen_US
dc.subjectSterna hirundoen_US
dc.subjectTemperature loggeren_US
dc.subjectVideo monitoringen_US
dc.titleAssessing nest attentiveness of Common Terns via video cameras and temperature loggersen_US
dc.typeArticleen_US

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