Bird species assemblages differ, while functional richness is maintained across an urban landscape

Mbiba, Monicah; Mazhude, Cynthia; Fabricius, Christo; Fritz, Hervé; Muvengwi, Justice

doi:10.1016/j.landurbplan.2021.104094

Cited by 20 publications

(16 citation statements)

References 77 publications

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“…This indicates that the suburban mountain parks have abundant living resources to support the two guilds without competitive exclusion, which may lead to overlapping specific functions. This is comparable to the findings of Mbiba et al (2021) [23]. In contrast, a negative correlation between species richness and α-diversity was found for the herbivorous guild in the periurban area, suggesting the potential influence on food and plant groups from competitive species under this type of urbanization, which may lead to a shortage of resources and the duplicate species functions [65].…”

Section: Urbanization Affects Bird Functional Roles and Indicator Spe...supporting

confidence: 82%

“…Compared to the city center, these areas are typically less developed, have less foot traffic, and are less impacted by urbanization. Furthermore, bird communities in urban parks or natural woodlands respond differently to habitat size and structure across several spatial dimensions [21][22][23], and there are functional or ecological implications in relation to changes in urbanization. Within the same geographic area, the species richness of bird communities in more urbanized areas may be lower than in pristine sites.…”

Section: Introductionmentioning

confidence: 99%

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Bird Communities Vary under Different Urbanization Types—A Case Study in Mountain Parks of Fuzhou, China

Dong

et al. 2022

Diversity

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Bird habitats are becoming increasingly fragmented as a result of rapid urbanization. As one of the essential refuges for urban bird communities, mountain parks are of practical significance for studying the spatial changes of birds, which can inform the future planning of mountain park planning. In this study, we assessed the α, β, and functional diversity of bird communities in mountain parks in Fuzhou, China, at three levels of urbanization (urban, peri-urban, suburban) and explored how diversity (abundance, richness, α-diversity, Chao1) varies along the urbanization gradient. A three-month bird survey was conducted using the transect method to examine the impact of urbanization on bird community structures in mountain parks. In addition, we evaluated the functional diversity of bird guilds in order to identify potential indicator species for monitoring different urbanization gradients in mountain parks. The results showed that: (1) During the three bird surveys from December 2021 to February 2022, 96 bird species and 2429 individuals of 9 orders, 34 families, and 63 genera were identified. (2) Urbanization had a significant impact on the overall bird α-diversity (p = 0.040) and richness (p = 0.024) but not on the overall bird abundance (p = 0.056). (3) The results of non-metric multidimensional scaling showed significant variations among overall birds in mountain parks along with three urbanization levels (stress = 0.155, p = 0.027). Similarly, significant differences were observed in the upper-stratum guild (stress = 0.183, p = 0.049) but not in other diet and vertical foraging stratum guilds. (4) Five species were identified as potential candidates for monitoring the trends of urban gradients. Moreover, compared to insectivorous or omnivorous guilds, most carnivorous and herbivorous guilds may not be suitable for monitoring the negative effects of urbanization in mountain parks. Our findings can help inform urban mountain park management or restoration strategies intended to mitigate the adverse impacts of urbanization.

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Section: Urbanization Affects Bird Functional Roles and Indicator Spe...supporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Bird Communities Vary under Different Urbanization Types—A Case Study in Mountain Parks of Fuzhou, China

Dong

et al. 2022

Diversity

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“…), which force plenty of bird species to migrate to habitats that are more conducive to survival. This has also been verified by previous literature [ 68 , 69 , 70 ]. Similarly, in high-disturbance areas, we have found higher levels of negative emotions and anxiety among recreationists.…”

Section: Discussionsupporting

confidence: 92%

Does Bird Diversity Affect Public Mental Health in Urban Mountain Parks?—A Case Study in Fuzhou City, China

Zheng

Huang

et al. 2022

IJERPH

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Intensified urbanization has caused a linear decline in the quality of urban biodiversity and indirectly harms our current human settlement environment. Urban mountain parks provide a refuge for the animals and plants and play a vital role in satisfying residents’ lives. At present, few studies are focusing on the impact of biodiversity on human mental health benefits of urban mountain parks in high-density construction areas along the coast of the Eastern Hemisphere. Here, we examined the relationship between bird abundance, Shannon diversity, Simpson diversity, and Richness and momentary mental health (positive, negative, and anxiety) in urban mountain parks. The timed species counts method was used to conduct three surveys of birds in urban mountain parks, and linear regression was performed on the relationship between bird diversity and mental health among sites. According to the regression model results, we found no significant correlation in any disturbance levels. As urban mountain parks are an essential part of the human settlement environment, how to improve the biodiversity and mental health of urban mountain parks is one of the focuses of research on biodiversity well-being in the future. Urban planning authorities and public mental health researchers should pay attention to the importance of biodiversity in urban development and consider how to realize the beautiful vision of the harmonious coexistence of humans, animals, plants, and the environment in which we live.

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“…This suggests that for this guild, many species tend to share similar trait values, and the loss of some species does not necessarily translate to the loss of species traits. In this case, local-scale strategies focused on maintaining heterogeneous habitats with complex vegetation types within urban green spaces can be enough to protect FRic, even if the levels of built infrastructure are high (Callaghan et al, 2018;Mbiba et al, 2021;Oliveira Hagen et al, 2017). The importance of focusing on managing landscape configuration in urban areas will depend on the management objective.…”

Section: Discussionmentioning

confidence: 99%

Disentangling direct and indirect effects of landscape structure on urban bird richness and functional diversity

Suárez‐Castro

Maron

Mitchell

et al. 2022

Ecological Applications

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As fragmented landscapes become increasingly common around the world, managing the spatial arrangement of landscape elements (i.e., landscape configuration) may help to promote the conservation of biodiversity. However, the relative effects of landscape configuration on different dimensions of biodiversity across species assemblages are largely unknown. Thus, a key challenge consists in understanding when it is necessary to focus on landscape configuration, in addition to landscape composition, to achieve multifunctional landscapes. We tested the effects of landscape composition (the percentage of tree cover and built infrastructure) and landscape configuration (degree of fragmentation) on landscape-level species richness and different metrics of functional diversity of urban birds. We collected data on different bird guilds (nectarivores/frugivores, insectivores) from Brisbane, Australia. Using structural equation models, we found that landscape structure (landscape composition and configuration) affected functional diversity via two main pathways:(1) through effects of landscape composition, mediated by landscape configuration (indirect effects), and (2) through direct ("independent") effects of landscape composition and configuration, filtering species with extreme trait values. Our results show that landscape-level species richness declined with the extent of built infrastructure, but patterns of trait diversity did not necessarily correlate with this variable. Landscape configuration had a stronger mediating effect on some metrics of the functional diversity of insectivores than on the functional diversity of frugivores/nectarivores. In addition, fragmentation increased the effects of built infrastructure for some traits (body size and dispersal capacity), but not for others (habitat plasticity and foraging behavior).These results suggest that differential approaches to managing landscape structure are needed depending on whether the focus is on protecting functional diversity or species richness and what the target guild is. Managing landscape fragmentation in areas with high levels of built infrastructure is important if the objective is to protect insectivore species with uncommon traits, even if it is not

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Bird species assemblages differ, while functional richness is maintained across an urban landscape

Cited by 20 publications

References 77 publications

Bird Communities Vary under Different Urbanization Types—A Case Study in Mountain Parks of Fuzhou, China

Bird Communities Vary under Different Urbanization Types—A Case Study in Mountain Parks of Fuzhou, China

Does Bird Diversity Affect Public Mental Health in Urban Mountain Parks?—A Case Study in Fuzhou City, China

Disentangling direct and indirect effects of landscape structure on urban bird richness and functional diversity

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