Influence of Site and Stand Factors on the Distribution of Crustose Lichens Of The Caliciales in a Suboceanic Spruce Forest Area in Central Norway

1996 ◽  
Vol 28 (04) ◽  
pp. 315 ◽  
Author(s):  
Håkon Holien
1996 ◽  
Vol 28 (4) ◽  
pp. 315-330 ◽  
Author(s):  
Håkon Holien

AbstractThe distribution of crustose Caliciales has been surveyed in 100 spruce forest patches in Sør-Trøndelag, central Norway. Relationships between occurrence of the species and a number of site and stand variables were analysed by detrended correspondence analysis (DCA) and direct gradient analysis. Species diversity7 was significantly higher in old forests and in forests at higher altitudes compared to young forests and forests at lower altitudes. Old trees and snags are considered to be the most important structural components in old forests promoting species diversity of the Caliciales. Threatened or vulnerable species, such as Chaenotheca gracilliina, Cybebe gracilenta, Sclerophora coniophaea and S. peronella were confined to forest on rich soils showing no correlation with forest stand age. Chaenotheca brachypoda and C. trichialis were found to be the most typical old forest species among the Caliciales. Humidiphilous species are considered to be less affected by forestry in a humid climate. A change in forestry practice towards methods imitating the natural dynamic processes is considered necessary to maintain species diversity of the Caliciales in boreal forests.


2017 ◽  
Vol 10 (2) ◽  
pp. 499-508 ◽  
Author(s):  
A. Kilpeläinen ◽  
H. Strandman ◽  
T. Grönholm ◽  
V.-P. Ikonen ◽  
P. Torssonen ◽  
...  

2015 ◽  
Vol 5 (3) ◽  
pp. 142-152
Author(s):  
Шевченко ◽  
Nikolay Shevchenko

Article examines the interspecific the pine and spruce forest area Sobinsk Pechora-Ilych nature reserve occupies the area between Kedrovka and Big Shaytanovki at the top of the Pecho-ra basin. This area is a good example of how 80-year period under the regime of commandments was restored forest communities under the upper basin of the Pechora River.


2013 ◽  
Vol 81 (4) ◽  
pp. 13-24 ◽  
Author(s):  
Monika Budzáková ◽  
Dobromil Galvánek ◽  
Pavol Littera ◽  
Jozef Šibík

A strong windstorm in November 2004 resulted in a huge blown-down spruce forest area in the southern part of the Tatra National Park in the Western Carpathians in Slovakia, Central Europe. The aim of this work is to study the vegetation composition of spruce forest at differently managed sites four years after this disturbance. Four study areas were selected for this purpose: (<strong><em>i</em></strong>) an area where the fallen trees were extracted and new seedlings were planted; (<strong><em>ii</em></strong>) an area, which was hit by a forest fire after the extraction; (<strong><em>iii</em></strong>) an area where no active management was applied; (<strong><em>iv</em></strong>) a reference forest unaffected by such disturbance. A total of 100 plots were selected, 25 of each area type. The result of DCA and CCA analyses consistently indicated that after this short period the non-extracted and extracted areas are currently most similar to the reference forest area, while the fire affected area differed. A one-way ANOVA comparing species cover for the different plot sizes indicated some significant differences between the extracted and non-extracted plots. The abundance of certain species commonly occurring in spruce forests, such as <em>Dyopteris carthusiana</em> agg., <em>Vaccinium myrtillus</em> and <em>Avenella flexuosa</em>, correlated weli with the non-extracted plots, compared to the extracted plots. Coverage of these species was lowest on burned plots. The lowest Shannon-Wiener’s diversity values were recorded in burned plots. This was most likely a consequence of mono-dominant competitive species spread, (mainly <em>Chamerion angustifolium</em>) which profited from the altered ecological conditions following the fire. Although some differences were also registered in the Shannon-Wiener diversity index between the remaining research plots, however these were not statistically significant. The most important results of our investigations include the extensive influence of fire disturbance on vegetation. Study revealed that the wind-disturbed area is able to regenerate sufficiently without human intervention.


2011 ◽  
Vol 1 (4) ◽  
pp. 7-8
Author(s):  
Dr. M. P. Naik Dr. M. P. Naik ◽  
Keyword(s):  

2017 ◽  
Vol 39 (3) ◽  
pp. 296-302
Author(s):  
Dao Nhan Loi ◽  
Vu Dinh Thong

The internationally renowned Muong Phang Cultural and Historical Site is located in the Dien Bien Phu region, northwestern Vietnam, and has received special attention from the public because of its great biodiversity. This site has a large forest area and other habitats including lakes, streams, rivers and paddyfield. These habitats would be ideal homes for bats and other biological taxa. However, in general, the wildlife of the Muong Phang Cultural and Historical Site receives little attention from scientists and authorities. Between 2014 and 2016, we conducted  series of surveys for bats in Muong Phang. Bat capture and sound recordings were the main procedure to obtain materials and data necessary for the assessment of diversity and conservation status. The results of the surveys this time revealed that there are 19 species of bats belonging to 7 genera, 5 families in the study area. Of these, a Myotis sp. is different from all the previously recorded Myotis bats from Vietnam, and, a Rhinolophus sp. is different from every described species of the family Rhinolophidae. This paper provides the first records of bats from Muong Phang with remarks on their taxonomy and conservation status.   Citation: Dao Nhan Loi, Vu Dinh Thong, 2017. First records of bats (Mammalia: Chiroptera) from Muong Phang cultural and historical site, Dien Bien province, Northwestern Vietnam. Tap chi Sinh hoc, 39(3): 296-302. DOI: 10.15625/0866-7160/v39n3.10641. *Corresponding author: [email protected]. Received 29 August 2017, accepted 10 September 2017 


1982 ◽  
Author(s):  
Ronald L. Hackett
Keyword(s):  

1986 ◽  
Author(s):  
Mark H. Hansen
Keyword(s):  

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