Size and Forest Structure of Display Grounds of Capercaillie Tetrao urogallus pleskei at Alutaguse, North-East Estonia in 1979-89

1991 ◽  
Vol 22 (3) ◽  
pp. 294
Author(s):  
Ene Viht
Keyword(s):  
Forest Structure ◽  
Tetrao Urogallus ◽  
North East

Aufzuchtshabitate für Auerhühner – ein Experiment mit Haushuhnküken | Capercaillie chick habitat – an experiment with barn fowl chicks

2010 ◽  
Vol 161 (7) ◽  
pp. 264-270
Author(s):  
Maria Stettler ◽  
Roland F. Graf ◽  
Niklaus Zbinden
Keyword(s):  
Forest Structure ◽  
Action Plan ◽  
Positive Influence ◽  
Tetrao Urogallus ◽  
Vegetation Types ◽  
The Past ◽  
Lower Quantity ◽  
Movement Ability ◽  
Microclimatic Conditions ◽  
Characteristic Field

Capercaillie (Tetrao urogallus) populations in Switzerland declined seriously in the past decades. The national capercaillie action plan defines actions to improve forest structure and composition in order to further the populations of the largest grouse species. These habitat measures should focus on improving summer habitat for hens with chicks, because winter habitats are available in good quality and quantity. However, our knowledge on reproduction habitats in alpine conditions is limited. In this study, we investigated microclimatic conditions, i.e. plant wetness, and movement ability of barn fowl chicks in seven characteristic field layer types in the northern Swiss Lower Alps. In the experiment on movement ability, we worked with barn fowl instead of capercaillie chicks for methodological reasons. In the bilberry-dominated vegetation, we measured a significantly lower quantity of water than in the vegetation types without bilberry. In the movement experiment, we found no significant differences between the vegetation types. As a qualitative result, we observed that the chicks moved easily even in high (> 30 cm) and close bilberry vegetation. Our results suggest that bilberry-dominated vegetation provides better conditions for grouse chicks than wet meadows and pastures, because less water adheres to the bilberry plants. Thus, the chicks get less wet in bilberry vegetation, which probably has a positive influence on the survival of the chicks. Even tall and dense vegetation seems not to impede the movement of the chicks. The results of our experiment may not be directly transferable to the demands of capercaillie chicks. Nevertheless, our study provides further evidence for the importance of bilberry as capercaillie chick habitat, especially in regions with high precipitations.

Ras al Khaimah: further archaeological discoveries

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi
Keyword(s):  
United Arab Emirates ◽  
The State ◽  
Focused Attention ◽  
North East ◽  
The North ◽  
History Of ◽  
The City

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.

Prevalence of cerebral palsy in north-east Italy from 1965 to 1989

1999 ◽  
Vol 41 (1) ◽  
pp. 26-39 ◽  
Author(s):  
Michele Bottos ◽  
Tatiana Granato ◽  
Giuseppa Allibrio ◽  
Caterina Gioachin ◽  
Maria Luisa Puato
Keyword(s):  
Cerebral Palsy ◽  
North East

Lichens in the North-East regions of Cyprus

1999 ◽  
Vol 110 (5-6) ◽  
pp. 455-463 ◽  
Author(s):  
S. Güvenç ◽  
Ş Öztürk
Keyword(s):  
North East ◽  
The North
Sign in / Sign up

Export Citation Format

Share Document