Influences of forest type and forest structure on bird communities in oak and pine woodlands in Spain

Díaz, Leticia

doi:10.1016/j.foreco.2005.10.061

Cited by 103 publications

(68 citation statements)

References 83 publications

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“…Forests with a high number of tree species at the landscape scale usually supply greater variety of potentially suitable niches for different bird species than forests with homogeneous characteristics (Hobson and Bayne, 2000;Díaz, 2006;Gil-Tena et al, 2007), as we found in this study. In this sense, the weak association between species richness and the percentage of monospecific stands is supporting the reported favourable effect of tree diversity at scales smaller than 1 × 1 km.…”

Section: Discussionsupporting

confidence: 62%

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Modelling bird species richness with neural networks for forest

Gil‐Tena

Vega‐García²,

Brotóns

et al. 2010

For. syst.

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For preserving biodiversity of European-Mediterranean forest ecosystems in current and future scenarios of global change by means of sustainable forest management it is necessary to determine how environment and forest characteristics correlate with biodiversity. For this purpose, neural networks were used to model forest bird species richness as a function of environment and forest structure and composition at the 1 × 1 km scale in Catalonia (NE Spain). Univariate and multivariate models respectively allowed exploring individual variable response and obtaining a parsimonious (ecologically meaningful) and accurate neural network. Forest area (with a canopy cover above 5%), mean forest canopy cover, mean annual temperature and summer precipitation were the best predictors of forest bird species richness. The resultant multivariate network had a good generalization capacity that failed however in the locations with highest species richness. Additionally, those forests with different degrees of canopy closure that were more mature and presented a more diverse tree species composition were also associated with higher bird species richness. This allowed us to provide management guidelines for forest planning in order to promote avian diversity in this European-Mediterranean region.Key words: global change; fires; forest biodiversity; forest landscape composition and structure; forest planning; landscape diversity. ResumenModelización de la riqueza de aves mediante redes neuronales para la gestión forestal a escala de paisaje en el NE de España Para preservar la biodiversidad de los ecosistemas forestales de la Europa mediterránea en escenarios actuales y futuros de cambio global mediante una gestión forestal sostenible es necesario determinar cómo influye el medio ambiente y las propias características de los bosques sobre la biodiversidad que éstos albergan. Con este propósito, se analizó la influencia de diferentes factores ambientales y de estructura y composición del bosque sobre la riqueza de aves forestales a escala 1 × 1 km en Cataluña (NE de España). Se construyeron modelos univariantes y multivariantes de redes neuronales para respectivamente explorar la respuesta individual a las variables y obtener un modelo parsimonioso (ecológicamente interpretable) y preciso. La superficie de bosque (con una fracción de cabida cubierta superior a 5%), la fracción de cabida cubierta media, la temperatura anual y la precipitación estival medias fueron los mejores predictores de la riqueza de aves forestales. La red neuronal multivariante obtenida tuvo una buena capacidad de generalización salvo en las localidades con una mayor riqueza. Además, los bosques con diferentes grados de apertura del dosel arbóreo, más maduros y más diversos en cuanto a su composición de especies arbóreas se asociaron de forma positiva con una mayor riqueza de aves forestales. Finalmente, se proporcionan directrices de gestión para la planificación forestal que permitan promover la diversidad ornítica en esta región de la Europa mediterrá...

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Section: Discussionsupporting

confidence: 62%

“…Older forests often harbour more forest bird species (Barbaro et al, 2005;Díaz, 2006;Gil-Tena et al, 2007) by providing more complex structures with more vegetation strata (e.g. Venier and Pearce, 2005) or more cavities and a higher amount of dead wood that can be used as breeding and feeding substrates (e.g.…”

Section: Discussionmentioning

confidence: 99%

Modelling bird species richness with neural networks for forest

Gil‐Tena

Vega‐García²,

Brotóns

et al. 2010

For. syst.

View full text Add to dashboard Cite

show abstract

“…Tree DBH, height, and vertical and horizontal stratifications influence bird diversity and abundance (Archaux & Bakkaus 2007). Other vegetation characteristics, like maturity of trees or undergrowth density, may also play an important role in bird community dynamics (Diaz 2006), since the vegetative structure determines where and how species use resources (Block & Brennan 1993). We found that canopy cover, height and DBH are all important for increasing and sustaining bird diversity.…”

Section: Discussionmentioning

confidence: 75%

“…Accordingly, forestry practices that alter the age and structure of forests, such as coppicing are highly relevant for bird species conservation (Mullerova et al 2014). Bird abundance often increases with forest maturity, altitudinal position, and development (cover and height) of the shrub layer (Diaz 2006). However, each species may have a different habitat preference or ecological niche associated with cover and height of trees within forests (MacArthur & MacArthur 1961).…”

Section: Introductionmentioning

confidence: 99%

Bird composition and diversity in oak stands under variable coppice management in Northwestern Turkey

Beşkardeş¹,

Keten²,

Kumbaşlı³

et al. 2018

iForest

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Coppice management results in profound differences in forest structure and composition, which in turn can modify habitat value for bird species. We measured bird species richness and composition at 50 sample plots in pure oak forest stands in northwestern Turkey, which differed in age, cover and height in association with coppice management. We recorded a total of 38 bird species and 699 individuals across all stands. Regression-based multimodel inference showed that structural features of forest stands strongly affect bird diversity and abundance. While canopy cover and tree height affect bird diversity positively, elevation of sampling plots, tree density and tree diameter at breast height (DBH) had a negative effect. In addition, constrained ordination analyses revealed that canopy cover was the most important factor influencing bird species composition. Forest stands that have 42-85% canopy cover, i.e., a few (2009-2580 oak trees) large tall (13.36-15.78 m) trees, were the most preferred habitat by bird species. However, we also found that different bird species favor different stand structural features. Thus, variation in stand structure from maintaining some coppice management across the landscape may be beneficial for rare or endangered species and result in greater landscape level biodiversity.

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“…According to the former studies (e.g. Fuller, 2003;Diaz, 2008), especially the presence of large, older trees (>40 cm) have a positive effect on bird abundance, because older trees generally have more diverse strata composition than younger trees, and thereby provide more feeding grounds, refuges and breeding sites. In particular, birds that nest in natural cavities are rewarded by large trees, as they generally select nest trees thicker than 25 cm DBH (Lawler and Edwards, 2002).…”

Section: Discussionmentioning

confidence: 99%

Effects of forest heterogeneity on the efficiency of caterpillar control service provided by birds in temperate oak forests

Bereczki

Odór

Csóka

et al. 2014

Forest Ecology and Management

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Controlling herbivore insects by insectivorous birds is a major ecosystem service, nevertheless little is known about how local habitat features and forest management influence the efficiency of this service and about how the pest control service birds provide can be maintained and improved. We conducted an experiment in temperate oak forests in the Mátra Mountains, northern Hungary to measure bird predation rate of artificial caterpillars resembling winter moth (Operophtera brumata L.) larvae, to evaluate the relationships among insectivorous bird communities, caterpillar populations and leaf damage caused by caterpillars and to assess the effect of forest heterogeneity on these processes. We found, that structurally heterogeneous forests maintained a significantly higher abundance of insectivorous birds.Especially the tree size heterogeneity increased bird abundance. The rate of bird predation was positively related to the abundance of insectivorous birds as well as to caterpillar abundance, which indicates that birds were able to respond to caterpillar density. We were not able to demonstrate a direct negative effect of bird predation on caterpillar abundance and a positive effect of caterpillar abundance on leaf damage. Structurally heterogeneous forests, however, suffered from less leaf damage than did homogeneous forests, which result may indicates that the higher activity of insectivorous birds in heterogeneous stands resulted in 3 lower activity of insect herbivores. Thus, we concluded that forest management can contribute to the mitigation of insect damages by maintaining the suitability of forest stands to the insectivorous bird communities through the maintenance of high stand heterogeneity and the presence of some key elements (e.g. retention tree groups, tree diversity, shrub layer).

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Influences of forest type and forest structure on bird communities in oak and pine woodlands in Spain

Cited by 103 publications

References 83 publications

Modelling bird species richness with neural networks for forest

Modelling bird species richness with neural networks for forest

Bird composition and diversity in oak stands under variable coppice management in Northwestern Turkey

Effects of forest heterogeneity on the efficiency of caterpillar control service provided by birds in temperate oak forests

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