Taxonomic, phylogenetic and functional diversity of an urban Amazonian avifauna

Lees, Alexander Charles; Moura, Nárgila

doi:10.1007/s11252-017-0661-6

Cited by 19 publications

(11 citation statements)

References 23 publications

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“…Most of the studies about the effects of urbanization on species diversity have been carried out in temperate zones [2, 10, 11, 18, 19, 20, 21, 22], while in the tropics, especially in the Americas, the research has been sparse [15, 23, 24, 25]. This bias in research efforts is concerning because patterns observed in temperate regions can often be hard to generalize to poorly studied regions in the tropics [15].…”

Section: Introductionmentioning

confidence: 99%

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Birds vs bricks: Patterns of species diversity in response to urbanization in a Neotropical Andean city

et al. 2019

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Urbanization is currently one the most important causes of biodiversity loss. The Colombian Andes is a well-known hotspot for biodiversity, however, it also exhibit high levels of urbanization, making it a useful site to document how species assemblages respond to habitat transformation. To do this, we compared the structure and composition of bird assemblages between rural and urban habitats in Armenia, a medium sized city located in the Central Andes of Colombia. In addition, we examined the influence of urban characteristics on bird species diversity within the city of Armenia. From September 2016 to February 2017 we performed avian surveys in 76 cells (250 x 250 m each) embedded within Armenia city limits; and in 23 cells (250 x 250 m each) in rural areas around Armenia. We found that bird diversity was significantly lower in urban habitats than in rural habitats, and differed in species composition by 29%. In urban cells, with higher abiotic noise intensity and higher impervious surface area, we found lower bird diversity than that in urban cells with higher guadual ( Guadua angustifolia patches), and forested surface areas. We did not find segregation of urban cells according to the species composition, although additional bird surveys inside urban forests remnant are needed to be more conclusive about this aspect. Altogether, our results highlight the importance of green areas embedded within cities to conserve bird diversity through reducing the ecological impact of urbanization on avian biodiversity.

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Section: Introductionmentioning

confidence: 99%

“…In the last two decades, some studies were conducted using birds in urban habitats of Latin America [14, 15, 25, 41, 42, 43, 44], but not all of them were in tropical regions. Thus, there is a gap in knowledge which still exists about the structure (i.e.…”

Section: Introductionmentioning

confidence: 99%

Birds vs bricks: Patterns of species diversity in response to urbanization in a Neotropical Andean city

et al. 2019

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“…Nearly one fifth (19.0%) of the estimated species richness for Yucatan was recorded in this study (Navarro-Sigüenza et al., 2014) together with 21.4% of the endemic species of YP. Lees and Moura (2017) registered a similar percentage of the regional species pool for the city of Belém, in the Brazilian Amazon. We highlight the relevance of this in the context of migratory species that rest and feed in the area either during the whole winter or during a brief period (Deppe & Rotenberry, 2005).…”

Section: Implications For Conservationmentioning

confidence: 60%

Drivers of Functional Composition of Bird Assemblages in Green Spaces of a Neotropical City: A Case Study From Merida, Mexico

Nava-Diaz

Pineda-López

Dorantes-Euán

2020

Tropical Conservation Science

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Given current urbanization trends, understanding the factors that affect local biodiversity is paramount for designing sound management practices. Existing evidence suggests that the assembly of urban communities is influenced by the environmental filtering of organisms based on their traits. Here, we investigate how environmental characteristics including isolation measurements affect the functional composition of avian assemblages in green spaces of Merida, Mexico, a Neotropical city. We sampled 22 sites, analyzed point-count data collected during fall migration, and characterized the habitat with regard to floristic and structural vegetation attributes, vegetation cover within green spaces, urban infrastructure, and isolation. We assessed the relationship between habitat descriptors and bird functional traits using RLQ and fourth-corner tests and compared trait–environment associations between resident and wintering species. Our results showed that functional composition of resident bird assemblages was linked to the environmental characteristics of the site, while the functional composition of wintering species was not. In particular, the degree of isolation revealed to be an important determinant of trait composition. Plant species richness, particularly native tree and shrub species, were critical for the functional composition of resident birds in green spaces. Our findings suggested shifts in body mass from less to more isolated green spaces. Specifically, we observed that large-bodied species predominated in isolated green spaces. This information is useful given the predicted increases in habitat isolation and transformation of green spaces due to urbanization.

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“…The impacts were observed in the dynamics of composition of the entire communities (La Sorte et al, 2014;Leveau et al, 2015;Leveau and Leveau, 2016) or in the analysis of migratory birds affected (Catterall et al, 1998, Juri andChani, 2009). A study conducted in an urban area located in the Amazonas showed a positive relationship between urbanization and the amount of migrant species found (Lees and Moura 2017). Most of studies compared the seasonal dynamics between habitat types, except two studies that related seasonal changes of community composition with impervious surface cover and other vegetation characteristics (Leveau et al, 2015;Leveau and Leveau, 2016).…”

Section: Seasonal Scalementioning

confidence: 99%

Urbanization, resources stabilization and the temporal persistence of bird species: A review

Leveau

2018

Preprint

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Background. A scarcely studied consequence of urbanization is the effect of the temporal stabilization of habitat structure and resources on bird communities. This alteration is thought to dampen environmental variations between day and night, seasons and years, promoting a temporal persistence of bird composition in urban environments. The aim of this study is to review actual evidence of temporal stabilization of habitats and resources in urban environments, and its potential effects on the temporal variation of bird species presence among different temporal scales. Methods. Selection of literature was made by searching published articles and book chapters using Google scholar. I only included articles that compared the temporal variation of bird composition or resources between different levels of urbanization. Results. In general, there is evidence of temporal stabilization of habitat structure and resources along the three scales considered. At the diurnal scale, the main factor considered was artificial light in the context of light pollution. At the seasonal and interannual scales, several case studies found a lesser temporal variation of primary productivity in urban areas compared with natural and rural areas. Bird species composition showed more stabilization in urban environments at the three temporal scales: 1) several case studies reported bird feeding at night, associated with artificial light; 2) studies in urban parks and along urbanization gradients showed lower seasonal variation of bird composition in the more urbanized areas; and 3) in general, case studies along urbanization gradients showed lower interannual variation of bird composition in the more urbanized areas, although some studies showed no relationships or opposed trends than expected. Discussion. The published evidence suggests that urban areas dampen the natural cycles at several temporal scales. The stabilization of biotic and abiotic factors, such as light, temperature, food and habitat structure are desynchronized from natural diurnal, seasonal and interannual cycles. However, there is a dearth of studies that simultaneously analyze the relationship between resources and bird composition stabilization. I also emphasize the need to differentiate spatial and temporal homogenization of avifaunas for a future research agenda. Moreover, the relationship between urbanization and other taxa is also commented. Finally, I propose suggestions for future work at different spatial scales.

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Taxonomic, phylogenetic and functional diversity of an urban Amazonian avifauna

Cited by 19 publications

References 23 publications

Birds vs bricks: Patterns of species diversity in response to urbanization in a Neotropical Andean city

Birds vs bricks: Patterns of species diversity in response to urbanization in a Neotropical Andean city

Drivers of Functional Composition of Bird Assemblages in Green Spaces of a Neotropical City: A Case Study From Merida, Mexico

Urbanization, resources stabilization and the temporal persistence of bird species: A review

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