| Titre : | Near-natural Strict Forest Reserves: What do they contribute to the protection of woodland birds? |
| Auteurs : | Joerg Mueller, Auteur |
| Type de document : | Article |
| Dans : | Ornithologischer Anzeiger (43(1) May 2004) |
| Article en page(s) : | 3-18 |
| Résumé : | In Bavaria in 153 near-natural Strict Forest Reserves timber is not being used anymore. This report compares breeding bird communities of eight broad-leaved deciduous Strict Forest Reserves using data from quantitative raster mappings. Both the comparison of gildes and the ordination show a progression of the reserves along a gradient of their near-natural status. Old oak tree high forest stands and reserves with trees showing huge crowns of former coppice with a standard system in a landscape of deciduous woods are very close to natural conditions. Clearly reserves with a proportion of conifer trees in a landscape of coniferous forests are further away from natural conditions. Reserves dominated by beech show fewer indicators of near-natural status, where old growing trees are still missing. With an increasing degree of near-natural status also the species richness, shown in a Shinozaki graph, is also increasing. Judged by the degree of threat, reserves with a good near-natural status are also of high value to bird protection. Middle Spotted Woodpecker, Collared Flycatcher, and Pied Flycatcher with their high breeding densities proved to be appropriate indicators for near-natural broad-leaved woods. In the reserve "Eichhall" breeding densities of 2.6 pairs/10 ha were found for the Middle Spotted Woodpecker, 3.1 pairs/10 ha for the Collared Flycatcher and 6 pairs/10 ha for the Pied Flycatcher. Thus for the protection of woodland birds larger reserves with old and huge crowned oak trees in broad-leaved woods are most important, smaller reserves in conifer woods rather serve as stepping stones for the spread of rare birds. |
Bibliothèque Tour du Valat
Se connecter
La Tour du Valat
Institut de recherche pour la conservation des zones humides méditerranéennes- Les publications récentes de la Tour du Valat
- Catalogue en ligne du centre de ressources
- A la une
-
Sélections
- Les écrits de Luc Hoffmann, fondateur de la Tour du Valat
- Des références récentes sur les zones humides méditerranéennes
- Quelques exemples d'impact du changement climatique sur les zones humides
- Quelques références bibliographiques sur la grippe aviaire
- Les recherches de la Tour du Valat sur le saturnisme
- De récentes publications sur la Camargue
- Le fonds Camargue de la bibliothèque
- Coordination géographique
- Nous contacter
Infos pratiques
Heures d'ouverture et contact
Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...
Liens utiles
- 1 - Le site Internet de la Fondation Tour du Valat
- 2 - La base documentaire du Pôle-relais lagunes méditerranéennes
- 3 - Le site Internet consacré aux Oiseaux d'eau en région Méditerranée
- 4 - Le site Internet ObsNature Camargue -Crau-Alpilles - recueil de données d'observations naturalistes
- 5 - Le site Internet de MedWet, l’initiative pour les zones humides méditerranéennes
