Bird Diversity in Urban Ecosystems: The Role of the Biome and Land Use Along Urbanization Gradients

Filloy, Julieta; Zurita, Gustavo A.; Bellocq, M. Isabel

doi:10.1007/s10021-018-0264-y

Cited by 51 publications

(53 citation statements)

References 47 publications

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“…Urbanization could exert large influences on breeding bird populations through the destroy of nest sites and the eliminating of food resources (Han et al, 2019; Hensley et al, 2019). Additional gradient studies have revealed that along an urbanization gradient, avian species richness peaks in moderately urbanized areas (Blair, 1999; Jokimaki & Suhonen, 1993; Pal et al, 2019; Verma & Das Murmu, 2015), which is the intermediate disturbance hypothesis (Connell, 1978), while a recent study suggested that it depends on the end of the gradient and biome (Filloy, Andres Zurita & Isabel Bellocq, 2019). Studies focusing on the avian-environment relationship have generally shown that in comparison to regional factors, local habitat configuration has a greater effect on this relationship (Evans, Newson & Gaston, 2009), especially for species with limited dispersion capacity (Graham & Blake, 2001).…”

Section: Introductionmentioning

confidence: 99%

The effect of habitat changes along the urbanization gradient for breeding birds: an example from the Xiong’an New Area

Xie

et al. 2019

PeerJ

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BackgroundBecause of its status as an ecocivilization pilot city, fundamental research on spatial distribution patterns and impact factors of the avian community within the Xiong’an New Area is necessary for future ecological planning and mitigation of negative impacts from future urbanization. Gradient research within small cities can provide important information for the development of urbanization gradient patterns of avian communities.MethodsA total of 30 sample points within the urbanization gradient were selected, and avian communities and environmental variables were measured within a 50 m radius sample circle. Principal component regression analysis was used to analyze bird-environment relationships. The Sorensen dissimilarity index was used to calculate the beta-diversity.ResultsOur results showed that there was a significant urban-rural pattern with a gradient phenomenon in avian communities. Results of this study showed more resident, passenger and insectivore species, and a higher density of breeding insectivore and omnivore individuals appear in the urban fringe than in the other areas. A relatively high value of overall beta-diversity and spatial isolation probably exists among the three disjunct constructed regions. Both species richness and individual abundance were significantly influenced by the species diversity of the trees and foliage height diversity (FHD).DiscussionBased on our results and our goal of avian species diversity conservation, we first suggest that urban green spaces be established and ensure a high complexity of vegetation structure as this is critically needed to increase avian species α-diversity within habitat patches. Second, different habitat types within and around the three constructed areas should be developed based on the important existing bird habitats to increase avian diversity in each city, especially in the areas within Xiongxian and Rongcheng that are well protected, and to elevate the beta-diversity of the total region. Finally, based on the biodiversity hotspots identified by this research, ecological corridors should be carefully planned to improve the stability of regional bird communities.

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Section: Introductionmentioning

confidence: 99%

The effect of habitat changes along the urbanization gradient for breeding birds: an example from the Xiong’an New Area

Xie

et al. 2019

PeerJ

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“…Although several studies have shown the importance of primary productivity (Haedo et al 2017, Leveau et al 2018, Filloy et al 2018) and habitat diversity (Leveau 2013b) determining the spatial variation of species richness in urban areas, this is the first case study where both variables are considered in the context of species-energy relationships.…”

Section: Discussionmentioning

confidence: 99%

“…The aim of this study is to evaluate which mechanism is more likely explaining the bird species richness variation along three urban-rural gradients of the Pampean region, Argentina. Although several studies have proposed theoretical models of bird richness response to urbanization (Lepczyk et al 2008, Filloy et al 2018), species-energy relationships have been scarcely studied and, to my knowledge, several hypotheses have never been explored simultaneously in urban environments yet. Unlike natural systems, in which primary productivity and habitat diversity are usually correlated (Hurlbert 2004), urban-rural gradients in central Argentina allows to separate the effects of these variables because agricultural areas can have a high primary productivity but a low habitat heterogeneity due to crops dominance (Leveau 2013a, Leveau et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Urbanization and species-energy relationships

2018

Preprint

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Species-energy relationships (SER) have been used scarcely to predict responses of biodiversity to changes in land use. In this work, two hypothesis of the SER were tested on bird communities along urbanization gradients: the increasing population size (IPS) and the niche position (NP) hypotheses. The IPS hypothesis states that sites with more primary productivity have more individuals, decreasing the probability of extinction and increasing species richness. The HPN predicts that sites with greater primary productivity and environmental heterogeneity allow the availability of a greater variety of resources and the presence of specialist species, thus increasing species richness. The hypothesis of habitat heterogeneity was evaluated by which more complex habitats provide more variety of resources and greater species richness. Birds were counted along three urban-rural gradients in the Pampean region of Argentina during the breeding season. The productive energy was measured from the NDVI and the environmental heterogeneity through the Shannon-Wiener diversity index, calculated with the percentage coverage of different substrates. Bird richness and habitat diversity were higher at intermediate levels of urbanization, while primary productivity had a negative relationship with urbanization. Although there was a positive relationship between bird richness and abundance, there was no positive relationship between bird abundance and primary productivity. Bird richness showed a positive relationship with habitat diversity and primary productivity; although path analysis revealed that the habitat diversity increased bird richness through an increase of bird abundance. The NP hypothesis was the most consistent to predict the bird richness along urban-rural gradients.

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“…Consequently, from an ecological perspective, the extirpation of species as a result of human disturbances can be considered a novel ecological filter 18,19 ; in addition, human disturbance can influence the condition of existing ecological filters (such as resources availability). Previous studies have shown that the response of populations and communities to human disturbance partially depends on the similarity between the native and the disturbed habitat 20,21 . Land uses maintaining key components from the native habitat, such as specific resources or abiotic conditions, usually preserve the conditions of ecological filters and the diversity of species, whereas land uses that strongly change the filter conditions are used mainly by extra-regional or invasive species with different ecological requirements 20,[22][23][24] .…”

mentioning

confidence: 99%

“…Previous studies have shown that the response of populations and communities to human disturbance partially depends on the similarity between the native and the disturbed habitat 20,21 . Land uses maintaining key components from the native habitat, such as specific resources or abiotic conditions, usually preserve the conditions of ecological filters and the diversity of species, whereas land uses that strongly change the filter conditions are used mainly by extra-regional or invasive species with different ecological requirements 20,[22][23][24] . While different land uses within a region can be viewed as a gradient of suitability for native species 25 , the intensity of these changes can be strongly influenced by the regional context or biome as the species' range of tolerance to environmental conditions, which defines the ecological niche, at this scale depends on evolutionary processes 24 .…”

mentioning

confidence: 99%

Dung beetles response to livestock management in three different regional contexts

Alonso

Zurita

Bellocq

2020

Sci Rep

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the response of biological communities to human disturbances depends on factors acting at local and regional scale and on the interaction between them. We compared the response of native forest dung beetle communities to cattle grazing under regional contexts differing on precipitation patterns (Atlantic forest and humid and dry chaco). through multivariate and GLMM analyses we contrasted richness and composition across regions and land uses and explored the role of local and regional variables accounting for those changes. We captured a total of 44101 individuals of 109 species. The interaction between local and regional variables influenced the response to livestock management. in the two wet regions (humid chaco and Atlantic forest) diversity was similar in the native forest regardless of cattle presence but differs strongly in open pastures. In contrast, in the dry Chaco, differences between native forest and land use were not evident. Vegetation structure was a major determinant of species richness, whereas regional climate determined differences in species composition. We concluded that the response of dung beetles to livestock management cannot be generalized for all biomes. in dry ecosystems, dung beetles are probably pre-adapted to environmental conditions imposed by cattle ranching whereas in wet ecosystems the impact of cattle ranching is more significant.

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Bird Diversity in Urban Ecosystems: The Role of the Biome and Land Use Along Urbanization Gradients

Cited by 51 publications

References 47 publications

The effect of habitat changes along the urbanization gradient for breeding birds: an example from the Xiong’an New Area

The effect of habitat changes along the urbanization gradient for breeding birds: an example from the Xiong’an New Area

Urbanization and species-energy relationships

Dung beetles response to livestock management in three different regional contexts

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