cd0e9bc1-bd57-44ae-9fec-2f6239e8726d English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:18:54 UK GEMINI 2.3 WGS 84 Kākāpō (Strigops habroptilus) egg fertility on Anchor and Whenua Hou islands, New Zealand, 2019 breeding season 2020-09-18 publication https://catalogue.ceh.ac.uk/id/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d 10.5285/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d doi: Savage, J.L., Crane, J.M.S., Hemmings, N. (2020). Kākāpō (Strigops habroptilus) egg fertility on Anchor and Whenua Hou islands, New Zealand, 2019 breeding season. NERC Environmental Information Data Centre 10.5285/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d This dataset contains information on the fertility and physical characteristics of kākāpō (Strigops habroptilus) eggs laid on Anchor and Whenua Hou islands, New Zealand during the 2018/19 breeding season. Of the 252 total eggs laid, 129 failed to develop; undeveloped eggs were dissected, fixed in formalin, and then inspected using fluorescence microscopy at the University of Sheffield UK. For all eggs, data are provided on mother and clutch of origin, developmental stage reached, and maternal mating behaviour. For dissected undeveloped eggs, additional data include fertilisation status, numbers of sperm visible on the perivitelline layer, egg size and weight, dry eggshell weight, and yolk and albumen weights. Full details about this dataset can be found at https://doi.org/10.5285/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d Savage, J.L. University of Sheffield james.savage@cantab.net https://orcid.org/0000-0002-4737-5673 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Crane, J.M.S. Kākāpō Recovery, New Zealand Department of Conservation jcrane@doc.govt.nz https://orcid.org/0000-0003-4441-8399 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Hemmings, N. University of Sheffield n.hemmings@sheffield.ac.uk https://orcid.org/0000-0003-2418-3625 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Savage, J. University of Sheffield james.savage@cantab.net pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher University of Sheffield copyright@sheffield.ac.uk owner Strigops habroptilus Wikidata 2012-10-29 creation conservation mortality GEMET - Concepts, version 4.1.3 2019-01-28 creation Environmental survey New Zealand Eggshells Embryo mortality Infertility Kākāpō Hatching failure Sperm Kakapo otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions otherRestrictions If you reuse this data, you should cite: Savage, J.L., Crane, J.M.S., Hemmings, N. (2020). Kākāpō (Strigops habroptilus) egg fertility on Anchor and Whenua Hou islands, New Zealand, 2019 breeding season. NERC Environmental Information Data Centre https://doi.org/10.5285/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d textTable English utf8 biota environment 2018-12-17 2019-12-15 166.478 167.675 -46.803 -45.739 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/cd0e9bc1-bd57-44ae-9fec-2f6239e8726d.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 All data were collected by the authors or by other staff within the New Zealand Department of Conservation Kākāpō Recovery Team. All data collection was carried out by trained and experienced staff following established conservation management or laboratory protocols. All data were collected in field or lab notebooks in the first instance, then transcribed to digital spreadsheets. Measurements reported in data files were checked against original notebooks before data deposition. Original notebooks are held at the University of Sheffield, UK, and with the Kākāpō Recovery Team, NZ; the latter also maintains a comprehensive kākāpō database. See documentation file for further methodological details and data collection roles.