埃塞俄比亚西南部Wolkite镇及其周边地区极度濒危的非洲白背秃鹫的种群状况

Beselam Shiferaw, A. Bekele, Bezawork Afework
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引用次数: 1

摘要

非洲白背秃鹫(Gyps africanus)是一种极度濒危的鸟类,通常在垃圾食物来源和栖息和/或筑巢地点可用的地区发现。本研究评估了2019年4月至2021年3月在Wolkite镇屠宰场及周围倾倒场的非洲白背秃鹫的种群规模和威胁。采用总计数法对种群大小进行评估,并进行描述性统计分析。采用半结构化开放式问题问卷,研究当地社区的态度和看法。在研究期间,进行了192次实地考察,以统计非洲白背秃鹫的种群规模。在屠宰场和垃圾场对非洲白背秃鹫的个体进行了统计。排土场共发现472只(36%),平均±SD: 20±7.4;范围:8-29只),屠宰场共计数839只(64%)(Mean±SD: 34±8;范围:22-47)。垃圾场年龄分类为成虫269只,亚成虫203只,成虫与亚成虫年龄分类差异有统计学意义(x2= 8.14, df =1, p< 0.05)。在屠宰场,成虫319只,亚成虫520只,各年龄组间差异有统计学意义(x2= 48.2, df =1, p< 0.05)。在研究期间,观察到人类干扰、与家畜和野生动物争夺食物和栖息地等威胁。
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Population status of the Critically Endangered African White-Backed Vultures (Gyps africanus) in and around Wolkite town, Southwestern Ethiopia
African white-backed vultures (Gyps africanus) are critically endangered bird species which are commonly found in areas where rubbish food sources and roosting and/or nesting sites are available. This study assessed the population size and threats of the African white-backed vultures in Wolkite town abattoir and the surrounding dumping site from April 2019 to March 2021. A total count method was employed to assess the population size of the species and analyzed using descriptive statistics. A questionnaire consisting semi-structured open-ended questions was used to study the attitude and perception of the local community. During the study period, 192 field visits were conducted to count the population size of African white-backed vultures. Individual African white-backed vultures were counted in the abattoir and dumping sites. About 472 individuals (36%) were counted in the dumping site (Mean ± SD: 20±7.4; Range: 8-29) and 839 individuals (64%) were counted in the abattoir (Mean ± SD: 34±8; Range: 22-47). The age category in the dumping site constituted 269 adults and 203 sub-adults with a statistically significant difference (x2= 8.14, df =1, p< 0.05) between adults and sub-adult age groups. In the abattoir, 319 of the population were adults and 520 were sub-adults, a significant difference (x2= 48.2, df =1, p< 0.05) in the age groups in the area. Threats such as human disturbance and competition for food and roosting with domestic and wild animals were observed during the study period. 
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