Factors Affecting Temporal Dynamics of Avian Assemblages in a Heterogeneous Landscape

Tworek, Stanisław

doi:10.3161/068.039.0201

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…Matrix type is one important aspect of landscape context, especially in human-dominated landscapes (Ricketts 2001;Vandermeer and Carvajal 2001;Haila 2002;Kupfer et al 2006;Laurance 2008). Nowadays, it appears to be common sense that the ''matrix matters'' (Ricketts 2001), and affects both within-and between-patch processes in heterogeneous landscapes (Stouffer and Bierregaard 1995b;Tworek 2004;Bender and Fahrig 2005;Fischer et al 2005;Haynes et al 2007a). Much of the current research in landscape ecology intends to understand how different matrix types influences biodiversity (Haila 2002;Kupfer et al 2006;Laurance 2008).…”

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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Section: Introductionmentioning

confidence: 99%

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

2009

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“…Land cover diversity index positively correlated with grassland, forest, orchard and building covers and, therefore, it described their joint effect on birds. Agricultural landscapes that are more diverse are inhabited by more species (Tworek 2004;Herzon and O'Hara 2007;Chiron et al 2010;Geiger et al 2010). Such landscapes are also more permeable for moving birds, thus, higher landcover diversity may enhance orchard utilization by birds by reducing effects of orchard isolation.…”

Section: Diversity Of Surrounding Landscapementioning

confidence: 99%

Effects of management intensity and orchard features on bird communities in winter

Myczko

Rosin

Skórka

et al. 2013

Ecological Research

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The knowledge and conservation of diminishing valuable habitats in agricultural landscapes are of key importance in saving declining farmland biodiversity. One of these habitats is the traditional orchard whose role in supporting birds is still poorly known, especially in winter. We counted birds in 106 orchards differing in management intensity (abandoned, traditional, and intensive) during December 2009 and January 2010 in Wielkopolska, western Poland and measured site characteristics and composition of surrounding landscapes for every orchard. Old abandoned and traditionally managed orchards had significantly higher bird species richness than intensive ones. Irrespective of orchard type, bird species richness as well as density were positively influenced by the cover of unmown herb layer in orchards and tree diversity. Tree and fruit densities positively affected bird species richness and density mainly in abandoned orchards while in other orchard types the effect of these variables was less pronounced. Land cover diversity in a landscape had a positive effect on species richness and density mostly in abandoned orchards and we believe that this effect reflects the elevated utilization of such orchards by birds from the surrounding landscape. Thus, abandoned, as well as traditionally managed orchards seems to be especially important habitats that offer food source and refuge for wintering birds and should be protected. We propose to diversify fruit production by planting various tree species, leaving part of the herb layer unmown and several trees unharvested in intensive orchards in order to improve suitability of modern orchards for birds.

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“…Forest cover (%) within a 1-km radius (ha). Woodland patches may serve as a breeding habitat for some species foraging in farmland and thus may increase total species richness ( Tworek , 2004 ; Bouvier et al , 2014 ).…”

Section: Methodsmentioning

confidence: 99%

Constant and seasonal drivers of bird communities in a wind farm: implications for conservation

Rosin

Skórka

Szymański

et al. 2016

PeerJ

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Background. One of the most difficult challenges for conservation biology is to reconcile growing human demands for resources with the rising need for protecting nature. Wind farms producing renewable energy have been recognised to be a threat for birds, but clear directives for environmental planning are still missing.Methods. Point counts were performed to study the relationship between eight environmental variables and bird populations in different parts of a year on the largest Polish wind farm between March 2011 and February 2013. Variables potentially related to species richness (Chao 1 estimator) and the abundance of the entire bird community as well as five selected farmland species were analysed with the use of generalized linear mixed models.Results. Some associations between the studied variables and bird populations were season/year specific, while others had a constant direction (positive or negative) across seasons and/or years. The latter were distance to the nearest turbine, field size, number of wind turbines, proximity of settlements and water bodies. Spatial autocorrelation and counting time were significantly correlated with bird population estimates but the directions of these relationships varied among seasons and years. Associations between abundance of individual species and environmental variables were species-specific.Conclusions. The results demonstrated a constant negative relationship between wind turbine proximity and bird numbers. Other environmental variables, such as field size, proximity of settlements and water bodies that also had constant associations with bird populations across seasons may be taken into account when minimizing adverse effects of wind farm development on birds or choosing optimal locations of new turbines.

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Factors Affecting Temporal Dynamics of Avian Assemblages in a Heterogeneous Landscape

Cited by 9 publications

References 24 publications

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

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

Effects of management intensity and orchard features on bird communities in winter

Constant and seasonal drivers of bird communities in a wind farm: implications for conservation

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