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Levaillant's woodpecker

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Last Updated: 28 November 2020

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Levaillant's woodpecker

Scientific classification
Class:Aves
Family:Picidae
Genus:Picus
Kingdom:Animalia
Order:Piciformes
Phylum:Chordata
Species:P. vaillantii

Touihri, M., Villard, M.-, & Charfi-Cheikhrouha, F. 2015. Nesting habitat requirements of two species of North African woodpeckers in native oak forest. Bird Study 62: 386-393. Doi: 10. 1080 / 00063657. 2015. 1049511 PDF in researchgate. Net capsule: Nests of Levaillants Woodpecker Picus vaillantii and Great Spotted Woodpecker Dendrocopos major were associated with higher densities of snags and down wood than foraging locations. Conclusion: Both Levaillants and Great spot Woodpecker show high requirements for large-diameter trees and snags, which provide substrates for both nesting and foraging. Nesting habitat requirements may not always be higher than those associated with foraging, but the fact that they were for Great Spotted Woodpecker calls for caution when planning for Woodpecker conservation.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Distribution and habitat

Among six habitat variables consider, only densities of snags and down woody material had a significant positive effect on nest presence. We find significant interaction between Woodpecker species and snag density, latter being slightly higher around Levaillant's Woodpecker nest sites. Both Woodpecker species mainly build their nests in live trees, which are much more abundant than dead or declining trees. However, selection ratio indicates strong preference for dead and declining trees and avoidance of live trees. Great Spotted Woodpeckers seem to prefer declining trees and Levaillant's Woodpeckers prefer snags as nesting substrates. With respect to tree diameter, both Woodpecker species prefer to nest in large-diameter trees. The Great Spotted Woodpecker showed a clear preference for trees > 50 cm dbh. In contrast, Levaillant's Woodpecker had a very similar selection index for trees 40-50 and > 50 cm dbh, whereas smaller trees were avoid. In our study area, dominant tree species is Zen Oak. In spite of this, Great spot Woodpecker show preference for Cork Oak. Zen Oak was highly selected by Levaillant's Woodpecker. About half of the nesting cavities of each Woodpecker species were located in the trunk, and another 30% in dead limbs. Remaining nests were excavated with live limbs. The nests of Levaillant's Woodpecker were slightly higher than those of the Great Spotted Woodpecker, but this difference was not significant. For Great Spotted Woodpecker, discriminant function analysis produced two significant axes and correctly classified 92% of sites. We find significant differences in vegetation structure between nesting, foraging, and unused sites. The first axis explains 67. 4% of variance and separate unused sites from others. In decreasing order of importance, density of trees 30-40 cm dbh and canopy closure were the most significant discriminant variables positively correlated with DF1. Sapling density was negatively correlate with DF1. Unused sites differ from nests and foraging sites by their higher density of saplings and lower density of trees 30-40 cm dbh. Nest sites had a mean density of trees 30-40 cm dbh and canopy closure almost three times higher than those of unused sites. Unused sites correspond to disturbed or transition zones where tree densities were probably insufficient to host woodpeckers despite the presence of some critical resources such as dead wood and large trees. The second axis explains 32. 6% of variance and contrast between nest sites and foraging sites. Four variables were significantly and positively correlate with DF2. In decreasing order of correlation, they were: density of downed wood, density of trees > 50 cm dbh, density of trees 40-50 cm dbh, and density of snags 10 cm. For Levaillant's Woodpecker, discriminant function analysis produces only one significant axis, which explains 98. 4% of variance and correctly classified 76. 7% of sites. Six variables were significantly correlate with this axis. Among them, only sapling density had negative coefficient, all other variables being positively associate.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Description

Levaillant's woodpecker is 30-33 cm in length with a 45-51 cm wingspan. It is very similar to the European Green woodpecker and Iberian Green woodpecker. Both Levaillant's woodpecker and Iberian Green woodpecker were formerly considered subspecies of P. Viridis. Levaillant's woodpecker is dark Green above and yellowish Green below, with crimson nape. Black moustache has a pale border above. The rump is chrome yellow and the outer webs of primaries are bar black and white. Bill and feet are slate grey. The sexes are similar except that the male has a crimson crown, whereas the female's crown is grey. Like. P v. Sharpei, both sexes lack black in lores and around the eyes shown by most forms of Green woodpecker. Call is loud ringing laugh, plue, plue, plue, very like Green woodpecker's yaffle, but perhaps slightly faster.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

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