This README_Common_et _al._2021_Avian_Vampire_Fly_Intensity_Mortality.txt file was generated on 2021-07-25 by L.K. Common GENERAL INFORMATION 1. Title of Dataset: Avian Vampire Fly (Philornis downsi) Intensity and Mortality 2. Author Information Name: Lauren K. Common Institution: Flinders University Address: College of Science and Engineering, Sturt Road, Bedford Park, South Australia, Australia, 5042 Email: lauren.common@flinders.edu.au Name: Petra Sumasgutner Institution: University of Vienna Address: Konrad Lorenz Research Center, Core Facility for Behavior and Cognition, Department of Behavioral and Cognitive Biology, University of Vienna, Austria Email: petra.sumasgutner@univie.ac.at Name: Rachael Y. Dudaniec Institution: Macquarie University Address: Department of Biological Sciences, Macquarie University, Sydney, Australia 2109 Email: rachael.dudaniec@mq.edu.au Name: Diane Colombelli-Negrel Institution: Flinders University Address: College of Science and Engineering, Sturt Road, Bedford Park, South Australia, Australia, 5042 Email: diane.colombelli-negrel@flinders.edu.au Name: Sonia Kleindorfer Institution: Flinders University, University of Vienna Address: Sturt Road, Bedford Park, South Australia, Australia, 5042; Konrad Lorenz Research Center, Core Facility for Behavior and Cognition, Department of Behavioral and Cognitive Biology, University of Vienna, Austria Email: sonia.kleindorfer@flinders.edu.au; sonia.kleindorfer@univie.ac.at 3. Date of data collection: 2004-2020, January-April (Darwin's Finch Breeding Season) 4. Geographic location of data collection : Floreana Island, Galapagos Islands, Highlands (01°17’S, 090°27’W). 5. Information about funding sources that supported the collection of the data: This study was funded by the Australian Research Council, Macquarie University, Rufford Small Grant Foundation, Mohamed bin Zayed Species Conservation Fund, Max Planck Institute for Ornithology, Royal Society for the Protection of Birds/Birdfair, Earthwatch Institute, Galápagos Conservation Fund, and Australian Federation of University Women (SA). This data was analysed in paper contribution number 2368 of the Charles Darwin Foundation of the Galápagos Islands. SHARING/ACCESS INFORMATION Links to publications that cite or use the data: Common, L.K., Sumasgutner, P., Dudaniec, R.Y., Colombelli-Negrel, D. and Kleindorfer, S. (2021) Avian vampire fly (Philornis downsi) mortality differs across Darwin’s finch host species. Scientific Reports, in press. DATA & FILE OVERVIEW File List: Common_et _al._2021_Avian_Vampire_Fly_Intensity.csv Philornis downsi collected in nests of Darwin's finches during the breeding season, Floreana Islands 2004-2020 Common_et_al._2021_Avian_Vampire_Fly_Mortality.csv Philornis downsi collected in nests of Darwin's finches during the breeding season, Floreana Islands 2004-2020, identified to age class. METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: Full methods available in Common et al. 2021 Scientific Reports upon publication. Avian vampire fly (Philornis downsi) intensity (total number of parasites collected per nest) was collected from nests of Darwin's finches monitored in the highlands of Floreana Island, Galapagos across 10 years: 2004, 2005, 2006, 2008, 2010, 2012, 2013, 2014, 2016 and 2020. Floreana rainfall data (sum of annual rainfall; mm) were collected via satellite sourced from CPC Global Unified Precipitation Data provided by NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, downloaded from the Galápagos Vital Signs website by the Galápagos Conservancy. Nests of three host species and one hybrid, small ground finch (Geospiza fuliginosa), small tree finch (Camarhynchus parvulus), medium tree finch (C. pauper) and the hybrid tree finch (C. parvulus x C. pauper including introgressed individuals) were monitored during incubation and nesting. Host species was determined morphologically in the field and hybrids were confirmed via microsatellite analysis. Brood size was collected using borescope. Upon nest termination (host death, as determined via borescope, or fledging) nests were collected and dismantled to collect the total number of P. downsi (larvae, pupae, puparia and adult flies). Dead nestlings were soaked in ethanol for 24 hours to collect any larvae residing in the nares or ear canals and these larvae were added to the total intensity. For a subset of these nests, all P. downsi larvae were identified to age class: first instar, second instar and third instar. First and second instar are unable to survive to adulthood upon termination of the nest and therefore were used to caculate to proportion of unsuccessful P. downsi per nest. 2. Instrument- or software-specific information needed to interpret the data: Analysed in R4.0.3 using packages lme4, MASS, car, lattice, ggplot2 and effects. DATA-SPECIFIC INFORMATION FOR: Common_et _al._2021_Avian_Vampire_Fly_Intensity.csv 1. Number of variables: 9 2. Number of cases/rows: 280 3. Variable List: ID: Unique ID number for each case year: Year of data collection rainfall: Cumulative annual rainfall (mm) of Floreana Highlands species: Host species, common and scientific name nestID: Unique nestID, no nests were sampled twice broodsize: Number of nestlings upon hatching ageatdeath: Age at which nestlings died, measured in days since hatching totalPdownsiintensity: Total number of Philornis downsi (larvae, pupae, puparium, adult) collected in the nest upon nest termination nestingheight: Nest height in tree (m) 4. Missing data codes: Null DATA-SPECIFIC INFORMATION FOR: Common_et _al._2021_Avian_Vampire_Fly_Mortality.csv 1. Number of variables: 16 2. Number of cases/rows: 241 3. Variable List: ID: Unique ID number for each case year: Year of data collection rainfall: Cumulative annual rainfall (mm) of Floreana Highlands speciesname: Host species, common and scientific name nestID: Unique nestID, no nests were sampled twice broodsize: Number of nestlings upon hatching chickagedeath: Age at which nestlings died, measured in days since hatching firstsecond: Number of first and second instar P. downsi larvae found upon nest termination third: Number of third instar P. downsi larvae found upon nest termination pupae: Number of P. downsi pupae found upon nest termination puparia: Number of P. downsi puparia found upon nest termination fly: Number of adult P. downsi found upon nest termination totallarvae: Total number of P. downsi larvae (first, second and third instar) found upon nest termination totalphilornis: Total number of Philornis downsi (larvae, pupae, puparium, adult) collected in the nest upon nest termination propunsuccessful: Proportion of unsuccessful P. downsi, i.e. proportion of first and second instar larvae nestingheight: Nest height in tree (m) 4. Missing data codes: null