Language Ecology and Endangerment Dataset for South-South Nigeria

This dataset was obtained from a field survey conducted on proper households (those with at least one parent and one child) in the South-South Geopolitical Zone of Nigeria. The dataset, collected between July 2023 and April 2024 using a purposeful sampling method, includes 543 validated responses captured in real-time through an online, electronic survey (e-survey) instrument developed with Google Forms. The survey instrument was synthesised from the United Nations Educational, Scientific, and Cultural Organisation (UNESCO) 2003 Language Vitality and Endangerment (LVE) framework/questionnaire to capture personalised views from households (five per Local Government Area (LGA)) within the language communities. The synthesised instrument makes the dataset suitable for identifying the causal LVE factors, group(s) or agent(s), thereby supporting efficient knowledge extraction and localisation. Also included are data on the speech systems of the languages spoken in these communities–consisting of recorded speech of 108 words selected from the Swadesh wordlist, with textual documentation of the gloss, syllable, and tone patterns of each word. The dataset is useful for mining insights into LVE patterns, providing a basis for understanding linguistic trends, changes, interactions over time, and other factors impacting language sustainability. It can also can support the analysis of complex linguistic behaviours across language communities.

本数据集源于对尼日利亚南南地缘政治区域内适宜家庭（至少包含一位父母和一位子女的家庭）进行的实地调查。该数据集采用目的性抽样方法，于2023年7月至2024年4月间收集，共计543份经过验证的实时在线电子问卷调查（e-survey）结果，该问卷基于谷歌表单开发。问卷工具源自联合国教科文组织（UNESCO）2003年的语言活力与濒危（LVE）框架/问卷，旨在捕捉语言社区内各地方人民政府区域（LGA）的家庭（每个区域五家）的个人观点。综合工具使得数据集适用于识别因果LVE因素、群体或行为者，从而支持高效的知识提取和本地化。此外，数据集还包括这些社区所使用语言的语言系统数据——包括从Swadesh词表中选取的108个词汇的录音，以及每个词汇的词义、音节和声调模式文本记录。该数据集有助于挖掘LVE模式，为理解语言趋势、变化、相互作用以及影响语言可持续性的其他因素提供基础。它还可以支持对语言社区复杂语言行为的分析。