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13 results for “Puffinus”
Figure 5 in The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus
Figure 5. Persian Shearwater Puffinus persicus persicus, off Watamu, coastal Kenya, 1 March 2022, showing the characteristic brown-toned upperparts, much-reduced white in the underwing-coverts, dusky axillaries and brown flanks streaking of this taxon (Jaap Gijsbertsen)
Figure 4 in The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus
Figure 4. Persian Shearwater Puffinus persicus, ashore near Pangani, north-east Tanzania, 14 March 2009, showing the characteristic dusky underwing, axillaries, and faint white spot in front of the eye (© B. Simonsen)
Figure 1 in The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus
Figure 1. Specimens of Persian Shearwater Puffinus persicus persicus (A) NMK 1442019 (Sidney Shema), (B) NMK B9189 (Sidney Shema), (C) NMK B8032 (Sidney Shema) and Tropical Shearwater Puffinus bailloni nicolae (D) AMNH 788928 (© Augie Kramer) collected in Kenya between 1963 and 2019, alongside a paratype of P. b. nicolae (E) MNHN-ZO-MO-1878-1051 (www.science.mnhn.fr/institution/mnhn/collection/zo/item/ search?lang=en_US) from the Seychelles. Birds not to scale.
Figure 3 in The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus
Figure 3. Persian Shearwater Puffinus persicus persicus, Diani, coastal Kenya, 26 February 2019, before it died (© S. Kapila)
Figure 2 in The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus
Figure 2. Persian Shearwater Puffinus persicus persicus off Oman (left ML 155569281; © Marcel Gil Velasco) and United Arab Emirates (right ML 93690941; © Tommy Pedersen) alongside the December 1981 specimen from Mtwapa Creek, Kenya (centre NMK B9189; Sidney Shema), showing typical pattern of wear and fading on head producing white grizzling / streaking, and a poorly demarcated border between cheeks and throat.
Exploring the mechanisms of coordinated chick provisioning in the Manx shearwater (Puffinus puffinus)
<p>Many species that provide care for their offspring in tandem with a partner coordinate their activities to maximise the efficiency of their investment. However, it is not well known exactly how this coordination is achieved. Manx shearwaters <i>Puffinus puffinus </i>are Procellariiform seabirds that exhibit a dual foraging strategy during chick provisioning in which long foraging trips to maintain condition are alternated with short, frequent trips to feed the offspring. This strategy is employed in a coordinated manner between the parents, with one making short trips while the other takes a single long trip. Previous work revealed that a complementary switch in foraging trip type is initiated by the parents following a synchronous visit to the nest. We used a combination of observational data and an experimental manipulation to examine the mechanisms that may underlie this behaviour. Specifically, we investigated the evidence that physical reunion is necessary to induce a switch in trip type, whether parents change their behaviour to maximise the probability of partner encounter, and whether indirect cues gained from the chick could inform a switch in behaviour. In our experimental approach, we manipulated the information adults had available to them by supplementarily feeding chicks to alter their begging behaviour. We found no support for the role of physical reunion or indirect cues in the coordination of care in this species. We discuss the possibility that the patterns of alternated provisioning observed during chick rearing in Manx shearwaters may emerge through entrainment during the well-coordinated incubation period preceding chick provisioning.</p>
Yelkouan shearwater (Puffinus yelkouan) Maltese Islands' colony differences in feather corticosterone, bulk stable isotopes, mercury concentration, adult breeding success and foraging strategies
<p>All data and scripts uploaded and described here are related to the manuscript being submitted under the title: "<span lang="EN-GB">Feather corticosterone and stable isotopes explain fledging and adult breeding success in a burrow-nesting seabird, the Yelkouan shearwater <em>Puffinus yelkouan</em>", accepted for publication in Marine Biology (doi: 10.1007/s00227-025-04748-8).</span></p> <h2><strong><u>Adult Breeding success </u></strong></h2> <p>In the script “YESH_Malta_BreedingSuccess_DSR_Rmark.R” apparent breeding success and daily nest survival rates are estimated for yelkouan shearwater nests in Maltese colonies based on the nest log data found in “BreedingSuccessSummaryData.zip”.</p> <h2><strong><u>Nestling and fledgling feather growth, corticosterone, stable isotopes and mercury</u></strong></h2> <p>The R script “YESH_FeatherGrowth_CORT_SI_Hg_chicks_Malta_Script.R” was written to load, combine and analyse all the data related to measurements of nestling growth, feather corticosterone, bulk stable isotopes and mercury analysis. The folder “YESH_FeatherGrowth_CORT_SI_Hg_chicks_Malta_Data.zip” contains the files with these data as named and loaded in the script. The folder also contains the original outputs from the corticosterone measurements by plate, including standard curves, provided in the subfolder: “CORT_Output_by_plate”. Original outputs as sent from the LIENs laboratory for stable isotopes and mercury can be found in the subfolder “SI_Hg_Outputs”.</p> <h2><strong><u>Adult shearwater tracking data analysis</u></strong></h2> <p>The R script written to analyse gps-logger data is named: “YESH_RM_MJ_ChickRearPeriod_ForagingStrategies.R”</p> <p>Adult yelkouan shearwater gps-logger tracking data during the chick-rearing period from the two colonies compared, Majjistral (MJ) and Rdum tal-Madonna (RM): “YESH_Malta_RM_MJ_ChickRearPeriod.csv”.</p> <p>Apart from the consolidated form the tracking data from the chick-rearing period can be found on BirdLife International Seabird Tracking Database:</p> <p>2012, 2013 & 2014: <a href="https://data.seabirdtracking.org/dataset/836">https://data.seabirdtracking.org/dataset/836</a></p> <p><a href="https://data.seabirdtracking.org/dataset/837">https://data.seabirdtracking.org/dataset/837</a></p> <p><a href="https://data.seabirdtracking.org/dataset/952">https://data.seabirdtracking.org/dataset/952</a></p> <p>2019: <a href="https://data.seabirdtracking.org/dataset/1935">https://data.seabirdtracking.org/dataset/1935</a></p> <p>2021: https://data.seabirdtracking.org/dataset/2223</p> <p>https://data.seabirdtracking.org/dataset/2224</p> <p>2022: <a href="https://data.seabirdtracking.org/dataset/1855">https://data.seabirdtracking.org/dataset/1855</a> </p> <p>“TRACKID_2012_2022_DIAGNOSTICSV3.csv” describes the completeness of tracks based on visual assessment and is loaded during the running of the script.</p> <p>Output shapefiles produced by running the script are provided in the folder: “YESH_RM_MJ_ShapefileOutputs_KDE.zip”.</p> <h2>Acknowledgements and Funding</h2> <p>We are grateful to the German Ornithologists’ Society through which all laboratory analysis was funded with funds from the Ursula Honig estate. Tracking was funded under EU-LIFE+ Malta Seabird Project (LIFE10NAT/MT/090), EU-LIFE Artina (LIFE17 NAT/HR/000594) and EU-LIFE PanPuffinus! (LIFE19 NAT/MT/000982), co-financed respectively by the Maltese Ministry for Sustainable Development, the Environment and Climate Change; Ministry of Education and Employment and Ministry for Agriculture, Fisheries and Animal Rights. All handling and sampling of shearwaters were carried out under permits from the Environment & Resources Authority (ERA) and the Wild Birds Regulation Unit (WBRU). We thank all staff and volunteers of BirdLife Malta having taken part in fieldwork, and all members of the public who contact us for grounded shearwaters. We are grateful to Gaël Guillou of the platform “Analyses isotopiques” for running the stable isotope analyses and to Maud Brault-Favrou of the platform “Analyses élémentaires” for running Hg analyses, both at the LIENSs laboratory. Thanks are due to the CPER (Contrat de Projet Etat-Région) and the FEDER (Fonds Européen de Développement Régional) for funding the AMA and the IRMS of LIENSs. Contributor PB is an honorary member of the IUF (Institut Universitaire de France). </p>
Exploring the mechanisms of coordinated chick provisioning in the Manx shearwater (Puffinus puffinus)
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Data from: Flying south: foraging locations of the Hutton's shearwater (Puffinus huttoni) revealed by time-depth recorders and GPS tracking
1. The Hutton's shearwater Puffinus huttoni is an endangered seabird endemic to Kaikōura, New Zealand, but the spatial and temporal aspects of its at-sea foraging behaviour are not well known. 2. To identify foraging areas and estimate trip durations, we deployed Global Positioning Systems (GPS) devices and Time-Depth Recorders (TDR) on 26 adult Hutton's shearwaters during the chick-rearing period in 2017 and 2018. 3. We found Hutton's shearwaters travelled much further from their breeding grounds at Kaikōura than previously considered, with most individuals foraging in coastal and oceanic areas 125–365 km south and near Banks Peninsula. Trip durations varied from 1 to 15 days (mean = 5 days), and total track lengths varied from 264 to 2157 km (mean = 1092.9 km). 4. Although some diving occurred in near-shore waters near the breeding colony, most foraging was concentrated in four regions south of Kaikōura. Dive durations averaged 23.2 seconds (range 8.1 to 71.3 sec) and dive depths averaged 7.1 m (range 1.5 to 30 m). Foraging locations had higher chlorophyll a levels and shallower water depths than non-foraging locations. Birds did not feed at night, but tended to raft in areas with deeper water than foraging locations. 5. Mapping the spatial and temporal distribution of Hutton's shearwaters at-sea will be fundamental to their conservation, as it can reveal potential areas of overlap with fisheries and other industrial users of the marine environment.
Data from: MetaBARFcoding: DNA-barcoding of regurgitated prey yields insights into Christmas Shearwater (Puffinus nativitatis) foraging ecology at Hōlanikū (Kure Atoll), Hawaiʻi
<p>Morphological identification of digested prey remains from a generalist predator can be challenging, especially when attempting to match degraded remains to taxonomic keys. DNA techniques, whereby prey is sequenced and matched to large public nucleotide sequence databases, are increasingly being used to augment morphological identification. We used "metaBARFcoding" (DNA metabarcoding) to target a region of the cytochrome <i><u>c</u></i> oxidase subunit I mitochondrial gene to identify prey in highly-digested regurgitations from Christmas Shearwaters <i>Puffinus nativitatis </i>at Hōlanikū (Kure Atoll). Metabarcoding was used to bulk-process 92 water samples from regurgitations collected from 2009-2017, providing an overview of the seabird's diet. We additionally Sanger sequenced 100 prey items from 50 randomly chosen regurgitations to verify that metabarcoding characterized key components of the diet. The metabarcoding technique identified 87 unique taxa from 29 families of fish and squid, spanning diverse taxa, including reef-associated, pelagic-oceanic, and mesopelagic species. Rare prey (frequency of occurrence <u><</u> 5% of samples) constituted 66% of the species richness, demonstrating the highly diverse diet of this generalist predator. Overall, 81% of the families detected in the contemporary diet were previously documented in Christmas Shearwater diets from the Northwestern Hawaiian Islands. Our results indicate that metabarcoding the cytochrome <i>c</i> oxidase subunit I (COI) region is useful in identifying a wide range of taxa from highly digested regurgitations, thus facilitating this approach to study seabird diets.</p>
Puffinus griseus
Cráneo de fardela negra (*Puffinus griseus*), ave que se encuentra presente en las zonas costeras y de altamar desde Arica hasta el Cabo de Hornos en Chile. Ejemplar perteneciente a la colección del Área de Zoología de Vertebrados del MNHN. Source: Objaverse 1.0 / Sketchfab
Data from: MetaBARFcoding: DNA-barcoding of regurgitated prey yields insights into Christmas Shearwater (Puffinus nativitatis) foraging ecology at Hōlanikū (Kure Atoll), Hawaiʻi
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Data from: Flying south: foraging locations of the Hutton’s shearwater (Puffinus huttoni) revealed by time-depth recorders and GPS tracking
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