Competition between Quercus petraea and Carpinus betulus in an ancient wood in England: seedling survivorship

1998 ◽  
Vol 9 (6) ◽  
pp. 873-880 ◽  
Author(s):  
M.G. Le Due ◽  
D.C. Havill
Keyword(s):  
Quercus Petraea ◽  
Carpinus Betulus ◽  
Seedling Survivorship ◽  
Ancient Wood

scholarly journals Estudio climatológico de los Pirineos centrales franceses

1991 ◽  
Vol 16 ◽  
pp. 405-416
Author(s):  
Marcel Gruber
Keyword(s):  
Quercus Petraea ◽  
Betula Pubescens ◽  
Carpinus Betulus

Algunos valles (Neste d'Aure, Gave de Pau) presentan un clima ligeramente continental y su vegetación y flora se caracterizan por la presencia de Pinos sylvestris, Quereos petraea (en el piso montano) con hayedos y abetales mesófilos o mesoxerófilos; en el piso subalpino, Pinos uncinata y Arctostaphylos uva-ursi son predominantes con los prados secos y abiertos. Otros valles más húmedos (Adour, Baréges) poseen más hayedos o abetales higrófilos y pocos bosques de Pinos sylvestris y Quercus petraea; Betula pubescens, Pinos uncinata y Rhododendron ferrogineum tienen mayor importancia en el piso subalpino con los prados húmedos. En el piso colino de los Pirineos centrales, Quereos robur es el roble dominante pero otras especies se desarrollan también en esta región atlántica: Quereos petraea, Q. pyrenaica, Q. pubescens y Carpinus betulus.

Isotopically labelled water - A valuable tracer to track initiation and progress of bud dormancy in temperate trees

2021 ◽  
Author(s):  
Manuel Gabriel Walde ◽  
Matthias Saurer ◽  
Yann Vitasse
Keyword(s):  
Progressive Increase ◽  
Quercus Petraea ◽  
Acer Pseudoplatanus ◽  
Tilia Cordata ◽  
Winter Dormancy ◽  
Carpinus Betulus ◽  
Complex Interactions ◽  
Temperate Trees ◽  
Quantitative Changes ◽  
Track Initiation

<p>Leaf-out of deciduous trees is regulated by a set of environmental factors such as cool temperatures during winter-dormancy (chilling), warm spring temperatures (forcing), and daylength (photoperiod), with complex interactions between these factors. Teasing apart these different factors in situ is challenging as no visible changes occurs during the dormancy phase. Manipulating these factors in climate chamber experiments may overcome this issue but may not reflect how they truly interact in natural conditions. Previous researches suggested that bud meristems are disconnected from the xylem flow during endodormancy and that the connection become progressively restored once exposed to a certain duration of chilling. Here we developed a new method using isotopically labelled water (D<sub>2</sub>O) to quantify the amount of water that can reach buds during the whole dormancy till budburst for 5 different species (<em>Acer pseudoplatanus</em>, <em>Carpinus betulus</em>, <em>Fagus sylvatica</em>, <em>Quercus petraea</em>, <em>Tilia cordata</em>).</p><p>In detail, we harvested twig cuttings from leaf fall to budburst (~every two weeks, 12 times) of these species from two different sites (about 5°C of difference) and placed them into labelled water during 24 h at constant light and 20°C. Buds were then cut and water content extracted to quantify δD. Thus, tracing back the water flow into the buds by the amount of D<sub>2</sub>O taken up. In parallel a subset of twigs was left in the room at 20°C to assess the time to budburst as a proxy for dormancy depth. Analyses of the data are ongoing and preliminary results show progressive increase of water uptake after induction of winter dormancy until budburst as chilling duration increased. Further, we also found distinct differences between species whereas <em>Carpinus betulus</em> showed the highest and <em>Tilia cordata </em>the lowest label uptake during winter dormancy. Furthermore, individuals growing at higher elevation took up less label indicating a stronger dormancy at lower winter temperatures. In summary, we think that our method seems a valuable tool to track quantitative changes in dormancy depth of temperate species especially, in combination with investigations on the molecular level such as sugars or hormones during winter-dormancy.</p>

scholarly journals ŠUMSKA VEGETACIJA TREŠNJIKA KOD BANJE LUKE

2017 ◽  
Vol 1 (25) ◽  
Author(s):  
Miloš Miletić ◽  
Đorđije Milanović ◽  
Vladimir Stupar ◽  
Jugoslav Brujić
Keyword(s):  
Fagus Sylvatica ◽  
Natura 2000 ◽  
Quercus Petraea ◽  
Vaccinium Myrtillus ◽  
Carpinus Betulus ◽  
Tilia Tomentosa

Rad obrađuje šumsku vegetaciju potencijalnog Natura 2000 područja „Trešnjik” na Starčevici kodBanje Luke. Iako područje leži nadomak glavnog grada Republike Srpske, šumska vegetacija do sadanije bila istraživana. Istraživanje je ukazalo na veliki diverzitet šumskih staništa na relativno malomprostoru. Utvrđeno je ukupno sedam stanišnih tipova, klasifikovanih u dvije ekološki i florističkijasno definisane grupe: (i) Grupa stanišnih tipova bukovih šuma: (1) stanišni tip Athyrium filix-femina-Fagus sylvatica (čiste šume bukve); (2) stanišni tip Fagus sylvatica-Tilia tomentosa (šume bukvei srebrnolisne lipe); (3) stanišni tip Quercus petraea-Tilia tomentosa (degradacija prethodnog tipa,sa dominacijom lipe); (ii) Grupa stanišnih tipova kitnjakovih šuma: (4) stanišni tip Carpinus betulus-Quercus petraea (klimatogena šuma kitnjaka i graba); (5) stanišni tip Vaccinium myrtillus-Quercuspetraea (acidofilna kitnjakova šuma); (6) stanišni tip Carpinus orientalis-Quercus petraea (termofilnekitnjakove šume); (7) stanišni tip Fraxinus ornus-Carpinus orientalis (šikare bjelograbića i crnogjasena).

scholarly journals Comparison of habitats of the rare fungus Pluteus fenzlii between Białowieża Virgin Forest (Poland) and thermophilous forests (Slovakia)

2019 ◽  
Vol 64 (1) ◽  
pp. 101-110
Author(s):  
Tomáš Kučera ◽  
Vladimír Kunca ◽  
Jan Holec
Keyword(s):  
Quercus Robur ◽  
Natura 2000 ◽  
Quercus Petraea ◽  
Oak Forests ◽  
Tilia Cordata ◽  
Carpinus Betulus ◽  
Virgin Forest ◽  
Closed Canopy ◽  
Turkey Oak ◽  
Priority Habitat

AbstractPluteus fenzlii is a rare Eurasian lignicolous fungus, an iconic bright yellow species that attracts attention. Its habitat in the Białowieża Virgin Forest, Poland, is dominated by Carpinus betulus with admixture of Quercus robur, Tilia cordata and Picea abies, with an herb layer typical for the Carpinion betuli alliance. In Slovakia, the country hosting the highest number of localities worldwide, P. fenzlii prefers closed canopy of thermophilous forest with dominance of Quercus cerris and adjacent Quercus robur agg., Q. petraea agg., Carpinus betulus and Tilia cordata. In the Natura 2000 classification this vegetation belongs to habitat 91M0, Pannonian-Balkanic Turkey Oak-Sessile Oak forests, and priority habitat 91G0, Pannonic woods with Quercus petraea and Carpinus betulus. The Slovak localities can be assigned to the mycosociological community Boleto (aerei)–Russuletum luteotactae, typical for thermophilous oak forests of Southern Europe and extrazonal areas in Central Europe. The presence of P. fenzlii at the isolated Białowieża locality could represent either a remote site of its present occurrence or a remnant of its former distribution, connected with the relict occurrence of thermophilous vegetation in Białowieża where continental oak forests have already disappeared.

scholarly journals Forest defoliator pests alter carbon and nitrogen cycles

2016 ◽  
Vol 3 (10) ◽  
pp. 160361 ◽  
Author(s):  
Anne l-M-Arnold ◽  
Maren Grüning ◽  
Judy Simon ◽  
Annett-Barbara Reinhardt ◽  
Norbert Lamersdorf ◽  
...  
Keyword(s):  
Climate Change ◽  
Leaf Litter ◽  
Soil Microbial Activity ◽  
Quercus Petraea ◽  
Oak Forests ◽  
Operophtera Brumata ◽  
Winter Moth ◽  
Carbon And Nitrogen ◽  
Soil Microbial ◽  
C And N

Climate change may foster pest epidemics in forests, and thereby the fluxes of elements that are indicators of ecosystem functioning. We examined compounds of carbon (C) and nitrogen (N) in insect faeces, leaf litter, throughfall and analysed the soils of deciduous oak forests ( Quercus petraea  L.) that were heavily infested by the leaf herbivores winter moth ( Operophtera brumata  L.) and mottled umber ( Erannis defoliaria  L.). In infested forests, total net canopy-to-soil fluxes of C and N deriving from insect faeces, leaf litter and throughfall were 30- and 18-fold higher compared with uninfested oak forests, with 4333 kg C ha −1 and 319 kg N ha −1 , respectively, during a pest outbreak over 3 years. In infested forests, C and N levels in soil solutions were enhanced and C/N ratios in humus layers were reduced indicating an extended canopy-to-soil element pathway compared with the non-infested forests. In a microcosm incubation experiment, soil treatments with insect faeces showed 16-fold higher fluxes of carbon dioxide and 10-fold higher fluxes of dissolved organic carbon compared with soil treatments without added insect faeces (control). Thus, the deposition of high rates of nitrogen and rapidly decomposable carbon compounds in the course of forest pest epidemics appears to stimulate soil microbial activity (i.e. heterotrophic respiration), and therefore, may represent an important mechanism by which climate change can initiate a carbon cycle feedback.

The Hornbeam (Carpinus Betulus L.) In Britain

1924 ◽  
Vol 12 (1) ◽  
pp. 39 ◽  
Author(s):  
Miller Christy
Keyword(s):  
Carpinus Betulus
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