Avian movement across abrupt ecological edges: Differential responses to housing density in an urban matrix

Hodgson, Patricia Ruth; French, Kristine; Major, Richard E.

doi:10.1016/j.landurbplan.2006.02.012

Cited by 86 publications

(39 citation statements)

References 47 publications

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“…Faeth et al (2005) refer to some groups of arthropods that are highly abundant in urban areas, such as generalist ground arthropods, plant-feeding arthropods, generalist pollinating and jumping spiders, and this factor may account for the predominance of insectivorous species in the area surveyed. Abundance and richness of nectarivorous species were interesting in areas with high housing density and were similar to the results observed by Hodgson et al (2007), where the shortage of food is apparently large. People living in residential areas often have artificial bird feeders with nectar, fruits, and seeds.…”

Section: Discussionsupporting

confidence: 85%

Relation between green spaces and bird community structure in an urban area in Southeast Brazil

2011

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Increased urbanization typically leads to an increase in abundance of a few species and a reduction in bird species richness. Understanding the structure of biotic communities in urban areas will allow us to propose management techniques and to decrease conflicts between wild species and human beings. The objective of this study was to describe the structure of the bird community in an urban ecosystem. The study was carried out in the city of Taubaté in southeastern Brazil. Point-counts were established in areas with different levels of tree density ranging from urban green spaces to predominantly built-up areas. We looked for a correlation between the richness/abundance of birds and the size of the area surveyed, the number of houses, the number of tree species and the number of individual trees. The results of multiple regression showed that bird richness had a direct relationship with vegetation complexity. The abundance and diversity of tree species were better predictors of bird species than the number of houses and size of the area surveyed. We discuss implications of this study for conservation and management of bird diversity in urban areas, such as the need to increase green areas containing a large diversity of native plant species.

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Section: Discussionsupporting

confidence: 85%

Relation between green spaces and bird community structure in an urban area in Southeast Brazil

2011

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“…Most species-specific differences detected were related to the ability to use the matrix as secondary habitat (e.g. Sieving et al 1996;Bender and Fahrig 2005;Umetsu and Pardini 2006;Hodgson et al 2007). This is especially relevant given that matrix use is among the main factors determining extinction proneness in fragmented landscapes (Laurance 1991;Gascon et al 1999;Viveiros de Castro and Fernandez 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Matrix type thus may control the nature and magnitude of edge (e.g. Haynes and Cronin 2006;Hodgson et al 2007), area (e.g. Brotons et al 2003;Wethered and Lawes 2003;Haynes et al 2007b), and isolation effects (e.g.…”

Section: Introductionmentioning

confidence: 99%

Does the type of matrix matter? A quantitative review of the evidence

2009

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It has been increasingly recognized that the type of matrix surrounding habitat patches can affect biodiversity in landscapes, but there were only qualitative reviews of the subject focused on particular taxonomic groups. We present a quantitative review of studies from 1985 to 2008 that compared effects of different matrix types on individuals, populations and communities. We compiled 104 studies, most on animals, covering a broad range of landscape types and spatial scales. Most studies were empirical, focused on individuals and communities, and evaluated abundance/richness in the patch as the dependent variable. The type of matrix surrounding habitat patches influenced the studied parameters in 95% of the studies, but such effects were overall smaller compared to patch size or isolation effects. Matrix type effects were strongly species-specific, with different species responding differently to matrix type in 96% of studies comparing species or group of species. In 88% of studies, matrix types more similar in structure to the patch had higher quality for the studied organisms from the point of view of functional connectivity. Overall, the type of matrix is important, but patch size and isolation are the main determinants of ecological parameters in landscapes. Matrix quality generally increases with increasing structural similarity with habitat patches, a pattern that could be used as a general guideline for management of the matrix in fragmented landscapes.

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“…Relatively few studies have investigated correlations between the layout of the urban matrix and biological diversity (Hodgkison 2005). One reason the urban matrix has not been researched in regard to biodiversity in the city is simply the fact that the matrix consists mainly of private property that cannot be accessed and studied as easily as public open space (Hodgson et al 2007).…”

Section: Underestimation Of the Urban Matrixmentioning

confidence: 99%

The ecology of urban areas and their functions for species diversity

Werner¹

2011

Landscape Ecol Eng

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Despite the appearance of an enormous number of publications about urban ecology and species diversity, many issues are simply opened up rather than explained. The ecological complexity of urban areas, i.e., the variety of determinants and the spatial and temporal dynamic of cities, preclude simple starting points and lines of explanation. Therefore, we lack sufficient comparisons between various cities, especially comparisons on a global level. If cities are to be compared by appropriate indicators, and if they are to be evaluated with respect to urban biodiversity, then models are necessary that help us understand and mirror the causal relationships between urban areas and biological diversity. Three approaches, also representing a multiscaled view of urban areas, are presented that are suitable for developing applicable models and indicators for monitoring ecological systems: the embedded city, the urban matrix, and urban patches. The embedded city represents a globally useful concept, because the relationship between cities and their regions can be applied as an indicator to all regions. The lack of sufficient description of the urban matrix makes comparisons between cities difficult and causes scientists to underestimate the importance and function of the matrix for urban biodiversity. Urban patches are often investigated in urban studies about plants and animals. Therefore, much existing data can be used, and several criteria describing the functions of patches for biodiversity are available. In particular, the first two approaches should be researched more intensively.

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Avian movement across abrupt ecological edges: Differential responses to housing density in an urban matrix

Cited by 86 publications

References 47 publications

Relation between green spaces and bird community structure in an urban area in Southeast Brazil

Relation between green spaces and bird community structure in an urban area in Southeast Brazil

Does the type of matrix matter? A quantitative review of the evidence

The ecology of urban areas and their functions for species diversity

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