Structure of the Japanese avian community from city centers to natural habitats exhibits a globally observed pattern

Mikami, Osamu; Mikami, Katsura

doi:10.1007/s11355-012-0201-8

Cited by 12 publications

(7 citation statements)

References 22 publications

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“…a general decrease towards urbanised sites (Blair 1996;Jokimäki et al 2002;Pautasso et al 2011). Whilst there have been some studies that have found evidence of an increase in total biomass towards more urbanised sites (Chace and Walsh 2006;Mikami and Mikami 2014), this was also not the case here. In these studies, biomass typically correlated with the abundance of individual species, suggesting that urbanized sites have more individuals of fewer species (Chace and Walsh 2006).…”

Section: Discussioncontrasting

confidence: 63%

“…Chace and Walsh 2006;Clergeau et al 2006;Faeth et al 2011;Mikami and Mikami 2014;Sanz and Caula 2015), suggesting that fewer species are able to exploit increasingly urbanized habitats. For birds, several studies have also found that species richness peaks at an intermediate level of…”

Section: Discussionmentioning

confidence: 99%

“…The relatively few studies that have considered total bird biomass variations in relation to urban-rural gradients have found inconsistent trends -some studies have found that biomass shows a similar general trend to species richness, typically with an intermediate peak along the gradient (Blair 1996;Jokimäki et al 2002;Pautasso et al 2011), whilst others have found negative correlations, with the highest biomass being in urban areas where species richness is lowest (e.g. Chace and Walsh 2006;Mikami and Mikami 2014).…”

Section: Introductionmentioning

confidence: 99%

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Trends in bird species richness, abundance and biomass along a tropical urbanization gradient

et al. 2016

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AcknowledgementsWe thank Lilian Twanza and Osman Mwebe, who also took part in some of the bird counts in Kampala, and to NatureUganda for data from the rural sites. We are also grateful to L. Bennun, J. Roberts, P. Robinson and J. Pierini for providing personal observations on scavenger populations in African cities, and to an anonymous referee whose constructive comments improved the manuscript. 3Abstract Impacts of urbanization on biodiversity are commonly studied using urbanization gradients which provide a space-for-time substitution in estimating consequences of urban expansion. Rates of urbanization and human population growth are high in tropical countries of the developing world, which also hold most of the world's biodiversity hot-spots, yet few studies have considered biodiversity trends along urban gradients in these regions. Bird communities across a gradient of nine sites in Uganda, from the city centre of Kampala to outlying rural locations, were studied over a six year period. These sites were ordered along an urbanization gradient using Principle Components Analysis based on habitat variables estimated at each site. Bird species richness showed a decrease from rural to urban sites, a trend especially evident in forest birds. There was no clear pattern in total abundance, total biomass or biomass per individual along the gradient. However, this latter result was heavily influenced by a colony of Marabou Storks at one site.When this species was omitted, there was evidence of a positive trend with urbanization, showing that as species richness decreased, the bird community was increasingly dominated by larger species with increasing urbanization, which were mainly scavengers able to exploit human refuse. These results provide further support for the negative impacts of urbanization on species richness, but also demonstrate trends in abundance and biomass are variable across different regions. In particular, the increasing dominance of larger species in urban areas may be relevant to certain geographic and/or socioeconomic contexts.

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Section: Discussioncontrasting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trends in bird species richness, abundance and biomass along a tropical urbanization gradient

et al. 2016

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“…dense urban and sparse urban landcovers), yet our results highlight that urban bluespaces had a bird community with a similar species richness and number of detections to that of managed greenspace. There have been a number of studies that have found evidence of an increase in the number of individuals in more urbanized sites (Mikami & Mikami, ; Seress & Liker, ). However, this was not the case in our study.…”

Section: Discussionmentioning

confidence: 99%

Bird communities across varying landcover types in a Neotropical city

et al. 2019

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Urbanization poses a serious threat to local biodiversity, yet towns and cities with abundant natural features may harbor important species populations and communities. While the contribution of urban greenspaces to conservation has been demonstrated by numerous studies within temperate regions, few consider the bird communities associated with different landcovers in Neotropical cities. To begin to fill this knowledge gap, we examined how the avifauna of a wetland city in northern Amazonia varied across six urban landcover types (coastal bluespace; urban bluespace; managed greenspace; unmanaged greenspace; dense urban; and sparse urban).We measured detections, species richness, and a series of ground cover variables that characterized the heterogeneity of each landcover, at 114 locations across the city. We recorded >10% (98) of Guyana's bird species in Georgetown, including taxa of conservation interest. Avian detections, richness, and community composition differed with landcover type. Indicator species analysis identified 29 species from across dietary guilds, which could be driving community composition. Comparing landcovers, species richness was highest in managed greenspaces and lowest in dense urban areas. The canal network had comparable levels of species richness to greenspaces.The waterways are likely to play a key role in enhancing habitat connectivity as they traverse densely urbanized areas. Both species and landcover information should be integrated into urban land-use planning in the rapidly urbanizing Neotropics to maximize the conservation value of cities. This is imperative in the tropics, where anthropogenic pressures on species are growing significantly, and action needs to be taken to prevent biodiversity collapse. K E Y W O R D Savian, bluespace, diversity, greenspace, Guyana, indicator species, species richness, urban planning

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“…Most studies on birds have focused on their diversity and community composition, their community structure from urban to natural habitats, their ecological function, their distribution and habitat in urban landscapes, and the conceptual framework for conservation in urban landscapes [19][20][21][22][23][24][25][26]. However, studies focusing on the human perception of birds as landscape elements across several countries are rarely done.…”

Section: Introduction mentioning

confidence: 99%

Birds as Landscape Elements in Urban Parks: A Comparative Study on the Perception between Indonesian and Japanese People

Wahyuni

Furuya

2017

J-PAL

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Birds are both a landscape element and a common form of wildlife found in urban parks. Human's perceptions of their surrounding landscapes need to be understood in order to create better environments. This study aimed to determine and evaluate the aesthetic quality of landscapes regarding birds as landscape elements, and to compare the results between Indonesian and Japanese people. The data were analyzed using scenic beauty estimation, the Mann-Whitney U Test, and the Spearman Correlation. A total of 252 respondents evaluated landscape images and answered a questionnaire. The results showed that landscape images with birds were given lower scenic beauty scores from Japanese respondents than they were from Indonesian respondents. There were significant differences between Indonesian and Japanese respondents in four landscape images with birds and two landscape images with human-bird interactions. Besides this, there were different strengths in correlations between landscape images with and without birds and landscape images with and without human-bird interactions among Indonesian and Japanese respondents. In conclusion, the existence of birds as landscape elements in urban parks had an influence on the perceptions and preferences of Indonesian and Japanese respondents. However, there was a difference in how they appreciated birds as landscape elements.

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Structure of the Japanese avian community from city centers to natural habitats exhibits a globally observed pattern

Cited by 12 publications

References 22 publications

Trends in bird species richness, abundance and biomass along a tropical urbanization gradient

Trends in bird species richness, abundance and biomass along a tropical urbanization gradient

Bird communities across varying landcover types in a Neotropical city

Birds as Landscape Elements in Urban Parks: A Comparative Study on the Perception between Indonesian and Japanese People

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