Local variations in the response of birds to human presence in urban areas

Nyatanga Tristan; Ndaimani Henry; Gaza Tanyaradzwa

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Local variations in the response of birds to human presence in urban areas

机译：Local variations in the response of birds to human presence in urban areas

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Studies that seek to understand the local variations in the response of birds to human disturbance in urban areas are important for conservation. This article investigated the contribution of human population density in the different urban land use zones of Harare (high, medium and low-density residential areas, as well as industrial areas), among other variables, to the models explaining the flight initiation distance (FID) of twenty-five urban bird species. The specific objectives of the study were: to test whether the variables significantly predict FID; to investigate their relative contribution to the 'best-performing' models; and to determine the relationship between FID and the individual predictor variables. Generalised linear models were used to predict FID as a function of: flock size, intruder starting distance, urban land use zone, perch height, average bird mass and species. We predicted that FID would increase in tandem with flock size and average bird mass, and decrease inversely proportional to population density, intruder starting distance and perch height. We also expected FID to differ by species. Results illustrated that twelve models best explained the FID of birds in the study area. Urban land use zone, intruder starting distance and species were the only predictors that appeared in all the twelve models. However, flock size and average bird mass appeared in only six of the twelve models making them the least important predictor variables. These findings add to current knowledge on local variation in the FID of certain bird species within the different land use zones. The results could be used to create buffers aimed to minimise human-induced disturbance on bird species.

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来源
《Ostrich》 |2021年第4期|270-279|共10页
作者
Nyatanga Tristan; Ndaimani Henry; Gaza Tanyaradzwa;
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作者单位

Univ Zimbabwe;

Univ KwaZulu Natal;

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原文格式 PDF
正文语种英语
中图分类动物学;
关键词
flight initiation distance; generalised linear models; human disturbance; intruder starting distance; urban bird species; urban land use; FLIGHT-INITIATION DISTANCE; ESCAPE BEHAVIOR; RISK-ASSESSMENT; GREEN SPACES; DISTURBANCE; SELECTION; WILDLIFE; SIZE;

Local variations in the response of birds to human presence in urban areas

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