Oaks (Quercus sp.) and only oaks? Relations between habitat structure and home range size of the middle spotted woodpecker (Dendrocopos medius)

Pasinelli, Gilberto

doi:10.1016/s0006-3207(99)00137-8

Cited by 90 publications

(87 citation statements)

References 24 publications

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“…These results suggest that B. b. spinosus may rest and forage within 50% core areas while B. viridis rests only within core areas, in line with behavioral field data (table B8). Furthermore, these results demonstrate the dominating effect of single habitat structures on space use, which has been shown for other animals, such as birds (Pasinelli 2000;Buner et al 2005) and bears (McLoughlin et al 2003). For both species, the 50% core areas increased with increasing habitat structure (surrogate for refuge density), except for B. b. spinosus, where the 50% core area decreased with increasing areas of large wood deposits ( fig.…”

Section: The Impact Of Direct and Indirect Effects Of Habitat And Biosupporting

confidence: 65%

“…However, the effects of habitat structure and resources on home range size have rarely been untangled (but see Tufto et al 1996;Lombardi et al 2007). Habitat structure per se may constrain or facilitate access to resources (Arthur et al 1996;Revilla et al 2004), and the distribution of the preferred habitat type may have a dominating effect on space use (Pasinelli 2000;Buner et al 2005), suggesting a close link between habitat selection and home range size. In this study, we therefore include factors for overall habitat structure (e.g., habitat richness) and partial habitat structure (area of preferred habitat type) and food resources to quantify their separate effects on home range size.…”

Section: Introductionmentioning

confidence: 99%

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Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Indermaur¹,

Gehring²,

Wehrle³

et al. 2009

The American Naturalist

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Understanding individual space use remains a major issue in ecology, and it is complicated by definitions of spatial scale and the interplay of multiple factors. We quantified the effect of habitat and biotic and individual factors on space use by amphibians (Bufo bufo spinosus [BB] and Bufo viridis [BV]) that were radio-tracked in their terrestrial summer habitat. We analyzed two spatial scales, 50% core areas and 95% home ranges (excluding 50% core areas), thought to represent resting and foraging areas, respectively. The 50% core area of BB was best explained by habitat structure and prey density, whereas the 50% core area of BV was determined solely by habitat structure. This suggests that the resting and foraging areas of BB are not spatially separated. The 95% home range of BB was determined by prey density, while for BV both habitat structure and prey density determined home range size. We conclude that the terrestrial area requirements of amphibians depend on the productivity and spatiotemporal complexity of landscapes and that differential space use may facilitate their co-occurrence. Behavior-based a priori hypotheses, in combination with an information-theoretic approach and path analyses, provide a promising framework to disentangle factors that govern individual space use, thereby advancing home range studies. [BV]) that were radiotracked in their terrestrial summer habitat. We analyzed two spatial scales, 50% core areas and 95% home ranges (excluding 50% core areas), thought to represent resting and foraging areas, respectively. The 50% core area of BB was best explained by habitat structure and prey density, whereas the 50% core area of BV was determined solely by habitat structure. This suggests that the resting and foraging areas of BB are not spatially separated. The 95% home range of BB was determined by prey density, while for BV both habitat structure and prey density determined home range size. We conclude that the terrestrial area requirements of amphibians depend on the productivity and spatiotemporal complexity of landscapes and that differential space use may facilitate their co-occurrence. Behavior-based a priori hypotheses, in combination with an information-theoretic approach and path analyses, provide a promising framework to dis-

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Section: The Impact Of Direct and Indirect Effects Of Habitat And Biosupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Indermaur¹,

Gehring²,

Wehrle³

et al. 2009

The American Naturalist

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“…Many woodpecker species specialize in their use of the forest resources and are dependent upon large or deciduous trees for foraging and nesting (Mikusiński et al, 2001;Robles et al, 2007;Ciudad et al, 2009;Touihri et al, 2014). One of the observed species, the Middle-spotted Woodpecker (Dendrocopos medius), is highly associated with mature oak stands in the Mediterranean (Robles et al, 2007) and are often considered a suitable indicator of valuable broadleaved forests (Pasinelli, 2000;Roberge & Angelstam, 2006). Specialized birds like woodpeckers may rely on other stand structures of oak forests than examined in this paper, thus they do not necessarily follow the general patterns for bird assemblages in forest stands.…”

Section: Discussionmentioning

confidence: 99%

Influences of forest type and habitat structure on bird assemblages of oak (Quercus spp.) and pine (Pinus spp.) stands in southwestern Turkey

Bergner

Avcı

Eryiğit

et al. 2015

Forest Ecology and Management

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The Mediterranean basin exhibits a multitude of forest habitats affected by former and current exploitation and management. Recent afforestation programs have resulted in an increase in the proportion of coniferous trees, while oak stands, formerly utilized for coppicing and grazing, are abandoned or converted into coniferous plantations. The loss of oak stands might negatively affect birds dependent upon broadleaved forests. Studies confirming or rejecting that statement are scarce, particularly in the eastern part of the region. Using a study area in southwestern Turkey we applied a guild-based approach to investigate how pine and oak stands across a chronosequence differ in their capacity to support forest bird assemblages. Variables describing the vegetation were sampled to characterize the stands and relate bird assemblages to stand structure. Bird abundance and species richness was positively associated with age for both stand types. Richness and diversity was highest in oak stands, while there were no differences in bird abundance between the two forest types. Pine stands supported a different bird species composition compared to oak stands of the same age. Stand age and structure, rather than forest type, held the highest explanatory powers for bird assembly structure. Primary cavity-nesters and ground-nesters were more abundant in oak stands, possibly reflecting differences in stand structure and resource distribution. To support these birds with suitable habitats, oaks stands need conservation. Management practices in pine stands should strive for increasing the amount of old trees and retain vegetation in the understory to benefit breeding birds.

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“…Besides commercial aspects, oaks are important in nature conservation, and they provide habitats for various groups of organisms Communicated by Christian Ammer. (Lindbladh and Foster 2010;Pasinelli 2000;Ranius et al 2008;Ranius and Jansson 2000;Thor et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Young conifer stands form a deer browsing refuge for an oak admixture: silvicultural implications for forest regeneration under herbivore pressure

Borkowski

Dobrowolska

Dąbrowski³

et al. 2017

Eur J Forest Res

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There is little knowledge how ungulate pressure on forest regeneration may be mitigated by silvicultural methods. The knowledge is especially needed for artificially regenerated, deciduous tree species. We studied factors affecting browsing incidence by deer in the Pisz Forest District in Poland, an area where 10,000 ha of forest was damaged by a 2002 hurricane. In 2006, we established three experimental plots (in total, 22.6 ha), in which the main species was Scots pine (Pinus sylvestris) admixed with pedunculate oak (Quercus robur). The data on browsing were collected in 2008-2015. In general, oak browsing incidence was unrelated to oak planting density. On a plantation scale, it was significantly affected by the pine age. Although in each variant all the oaks were browsed for four consecutive years (2009)(2010)(2011)(2012), in 2013 browsing incidence began to decrease. When the pines grew higher and formed a physical barrier, it was harder for deer-roe deer (Capreolus capreolus), red deer (Cervus elaphus) and moose (Alces alces)-to move through and locate the oaks. Moreover, within plantations, oak browsing incidence was higher in the patches with shorter pines.Browsing of individual saplings or small groups of saplings was also negatively affected by the height of neighbouring pine saplings. Oak density influenced deer selectivity depending on the tree height. In a low oak tree density, browsing incidence was unrelated to oak height, while in higher tree density, deer selected oaks of the height between 40 and 100 cm. We postulate that deciduous admixture in a coniferous (unattractive) stand can be planted with a few year delay. Older coniferous trees should impede locating of attractive tree species by deer and the browsing incidence.

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Oaks (Quercus sp.) and only oaks? Relations between habitat structure and home range size of the middle spotted woodpecker (Dendrocopos medius)

Cited by 90 publications

References 24 publications

Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Behavior‐Based Scale Definitions for Determining Individual Space Use: Requirements of Two Amphibians

Influences of forest type and habitat structure on bird assemblages of oak (Quercus spp.) and pine (Pinus spp.) stands in southwestern Turkey

Young conifer stands form a deer browsing refuge for an oak admixture: silvicultural implications for forest regeneration under herbivore pressure

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