Assessing the potential impacts of bioenergy cropping on a population of the ground-breeding bird <i>Alauda arvensis</i>: a case study from southern Germany

Schlager, Patric; Ruppert-Winkel, Chantal; Schmieder, Klaus

doi:10.1080/01426397.2020.1808963

Cited by 3 publications

(3 citation statements)

References 34 publications

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“…The closed-grasslands LULC category showed the highest significant relation, thereby having the most important effect on skylark abundance. The arable-land LULC category is also a preferred category according to the literature [11,18,29,50]. The nonpreferred group (class) of LULC categories contains land-cover types with significant negative relations with skylark abundance: built-up land, green urban areas, complex cultivation patterns, forests, and wetlands and water surfaces.…”

Section: Relationship Between Land-cover Proportions and Skylark Abunmentioning

confidence: 99%

“…According to the pattern and process paradigm, which analyze the relationship between the landscape patterns spatial distribution and landscape processes, landscape indices are widely used as indicators of biodiversity and habitat changes [13,[25][26][27][28]. After we identified preferred and non-preferred habitats for skylarks, we could calculate shape-and sizerelated class-level landscape metrics, and land-cover heterogeneity, and estimate the collective impact of these variables on skylark abundance [9][10][11]13,29,30].…”

Section: Introductionmentioning

confidence: 99%

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Modelling the Impacts of Habitat Changes on the Population Density of Eurasian Skylark (Alauda arvensis) Based on Its Landscape Preferences

Csikós

Szilassi

2021

Land

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The dramatic decline of the abundance of farmland bird species can be related to the level of land-use intensity or the land-cover heterogeneity of rural landscapes. Our study area in central Europe (Hungary) included 3049 skylark observation points and their 600 m buffer zones. We used a very detailed map (20 × 20 m minimum mapping unit), the Hungarian Ecosystem Basemap, as a land-cover dataset for the calculation of three landscape indices: mean patch size (MPS), mean fractal dimension (MFRACT), and Shannon diversity index (SDI) to describe the landscape structure of the study areas. Generalized linear models were used to analyze the effect of land-cover types and landscape patterns on the abundance of the Eurasian skylark (Alauda arvensis). According to our findings, the proportions of arable land, open sand steppes, closed grassland patches, and shape complexity and size characteristics of these land cover patches have a positive effect on skylark abundance, while the SDI was negatively associated with the skylark population. On the basis of the used statistical model, the abundance density (individuals/km*) of skylarks could be estimated with 37.77% absolute percentage error and 2.12 mean absolute error. We predicted the skylark population density inside the Natura 2000 Special Protected Area of Hungary which is 0–6 individuals/km* and 23746 ± 8968 skylarks. The results can be implemented for the landscape management of rural landscapes, and the method used are adaptable for the density estimation of other farmland bird species in rural landscapes. According to our findings, inside the protected areas should increase the proportion, the average size and shape complexity of arable land, salt steppes and meadows, and closed grassland land cover patches.

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Section: Relationship Between Land-cover Proportions and Skylark Abunmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling the Impacts of Habitat Changes on the Population Density of Eurasian Skylark (Alauda arvensis) Based on Its Landscape Preferences

Csikós

Szilassi

2021

Land

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“…Now they are gone, as skylarks have generally become a rare species in the wider area (cf. Schlager et al, 2020). Several factors related to agricultural intensification seem to have contributed to this decline: reduced crop diversity, predominance of autumn-sown crops, the increased use of fertilisers and insecticides (European Commission, 2007), increase of energy crops (such as silage maize; Csikos & Szilassi, 2020), greater sward height (Kolecek et al, 2015), reduction of grazing land (Mischenko et al, 2019), farming tramlines as linear structures in fields that are dangerous nesting sites (Püttmanns et al, 2021), but also more wind turbines (Erickson et al, 2014) and predators at field edges (Morris & Gilroy, 2008)-taken together, the general deterioration of the agricultural landscape as a habitat for skylarks (Chamberlain et al, 1999;cf.…”

Section: Conservationmentioning

confidence: 99%