FOLIA BIOLOGICA ET GEOLOGICA 51/4, 151–163, LJUBLJANA 2010 COBISS 1.01 SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VA L L E Y ? * SUBMEDITERANSKI TRA VNIKI V ALPSKEM BOHINJU?** Igor DAKSKOBLER 1 , Peter STRGAR 2 , Ivan VEBER 3 & Branko ZUPAN 4 Abstract UDC: 581.5:633.21(234.323) In the summer of 2010, on dry meadows and pastures on gla- cial material (unconsolidated moraine, till) in Ukanc (Bohinj, the Julian Alps) we found several plants unusual for this re- gion, as they mainly grow in the Submediterranean region of Slovenia. Centaurea rupestris, Dianthus sanguineus, Plantago holosteum, Scorzonera villosa, Koeleria macrantha and Cam- panula rapunculus grow together on only one of the meadows, while Scirpoides holoschoenus grows on several spots, but still on sites that are very similar to that of the above-mentioned species and not on wet meadows that are otherwise its charac- teristic habitat. With the phytosociological table we describe the species composition of these meadows and argue that most of the listed species are not indigenous to the new localities, but probably grow subspontaneously. We presume that they “migrated” to Bohinj a little short of a hundred years ago, du- ring the World War I. At that time there were military camps put up in Ukanc and the existing meadows were used as ex- pansive pastures kept for horses. Key words: Dianthus sanguineus, Centaurea rupestris, Scorzonera villosa, Scirpoides holoschoenus, Gladiolus palus- tris, Natura 2000, Bohinj, the Julian Alps, the Triglav National Park Izvleček UDK: 581.5:633.21(234.323) Na suhih travnikih in pašnikih na ledeniškem gradivu (ne- sprijeta morena, til) v Ukancu (Bohinj, Julijske Alpe) smo po- leti 2010 našli več za to območje nenavadnih rastlin, ki v Slo- veniji v glavnem uspevajo le v submediteranskem območju. Samo na enem travniku skupaj rastejo vrste Centaurea rupes- tris, Dianthus sanguineus, Plantago holosteum, Scorzonera villosa, Koeleria macrantha in Campanula rapunculus, vrsta Scirpoides holoschoenus pa uspeva na več krajih, vendar na precej podobnih rastiščih kot prej naštete in ne na močvirnih travnikih, za katere je sicer značilna. S fitocenološko tabelo opisujemo vrstno sestavo teh travnikov in razpravljamo o ver- jetni drugotnosti novih nahajališč. Domnevamo, da se je veči- na naštetih vrst v Bohinj »priselila« pred nekaj manj kot sto leti, med prvo svetovno vojno. Takrat so bila v Ukancu vojaška taborišča, zdajšnji travniki pa obsežni pašniki za konje. Ključne besede: Dianthus sanguineus, Centaurea rupes- tris, Scorzonera villosa, Scirpoides holoschoenus, Gladiolus pa- lustris, Natura 2000, Bohinj, Julijske Alpe, Triglavski narod ni park 1 Dr. Igor Dakskobler, the Jovan Hadži Institute of Biology of the Scientific Research Centre of the Slovenian Academy of Sciences and Arts, Regional research unit, Brunov drevored 13, 5220 Tolmin, igor.dakskobler@zrc-sazu.si 2 Peter Strgar, Zoisova 11, SI-4264 Bohinjska Bistrica, peter.strgar@petersfoto.si 3 Ivan Veber, Zoisova 24, SI-4264 Bohinjska Bistrica 4 Branko Zupan, Savica 6, SI-4264 Bohinjska Bistrica * To the memory of Prof. Dr. Tone Wraber ** V spomin prof. dr. Tonetu Wraberju 152 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Bohinj is a picturesque glacial valley in the Julian Alps. Although it is botanically (floristically, phytosociologi- cally) still insufficiently researched, the knowledge of its f lora and vegetation is nevertheless extensive. Recent re- search studies conducted by unprofessional botanists (B. Anderle, B. Zupan, I. Veber, P. Strgar, M. Kocjan, L. Pintar, V. Leban), gave rise to numerous new findings, most of which, however still remain to be published. In this short article we want to draw attention to an inte- resting occurrence of Submediterranean species on meadows in Ukanc. Thermophilous species in Bohinj are not rare and this is especially true for the sunny sl o pes abo v e Lake Bo hin j ( co m par e e.g. M. W rab er 1961). Nevertheless, we were surprised to find Dianthus sanguineus on a dry meadow in Ukanc near the Zlatorog Hotel (det. Peter Strgar, 10 June 2010, Figure 5). Once we had thoroughly examined the meadow (Figure 6) we found four more species unusual for the Alpine region: Scorzonera villosa, Campanula rapunculus (Figure 7), Plantago holosteum (leg. & det. Igor Dakskobler, B. Zupan and Ivan Veber, 11. 6. 2010) and Koeleria macra- ntha (leg. Igor Dakskobler, B. Zupan and Ivan Veber, 11. 6. 2010, det. A. Seliškar, 20. 10. 2010). On our revisiting the site (6.7.2010, I.D., B.Z., I.V.) we found also Centau- rea rupestris (Figure 8) and Orobanche minor in the im- mediate vicinity of this meadow. On very similar mea- dows under the Mežnar homestead (Blato) and at the last weekend houses on the left bank of the Savica, B. Zupan and I. Veber found also Scirpoides holoschoenus (leg. 27. 6. 2010, det. I. Dakskobler, 6.7. 2010, Figure 9). Both researchers also know the locality of the taxa Iris sibirica subsp. erirrhiza and Gladiolus palustris on these meadows. With the phytosociological table we will pre- sent the floristic composition of dry meadows in Ukanc. In the discussion we will consider the origin of Subme- diterranean species in the Alpine Bohinj valley. 1 INTRODUCTION 2 METHODS Standard Central-European method (Braun-Blanquet 1964) was used in the preparation of phytosociological relevés. The relevés were entered into the FloVegSi data- base (T. Seliškar, Vreš & A. Seliškar 2003). The data- base was used also in the preparation of distribution maps of some of the studied species. The nomenclature source for the names of vascular plants is the Mala flora Slovenije (Martinčič et al. 2007) and Theurillat (2004) for the names of syntaxa. 3 RESULTS Floristic composition of the researched meadows is pre- sented in Table 1 and approximate locations of the relevés in Figure 1. Their geological bedrock is uncon- solidated moraine (till) – Buser (1987), the soil is shal- low and skeletal, in places slightly wet, the soil type is rendzina. The climate in Ukanc is montane, relatively cold and humid. We have temperature data for Stara Fužina, which is located at a similar altitude (547 m a.s.l.) on the other side of the lake. Mean annual tem- perature there in the period 1961–1990 was 7.6 ° C, mean temperature of the warmest month July was 17.3 ° C and of the coldest month January -2.8 ° C. The vegetation pe- riod lasts from April to October (the temperature data are taken from Mekinda-Majaron 1995: 113). Mean annual precipitation in the same period (1961–1991) in Ukanc (530 m a.s.l.) was 2915 mm, with the most abun- dant precipitation in May and November and with the least precipitation in February and March (B. Zupančič 1995: 322). A phenological feature of Ukanc is a relative- ly early foliation of beech (earlier in spring than else- where in Bohinj), which indicates a slightly warmer local climate and the influence of the lake. The meadow in the vicinity of the Zlatorog Hotel near the outfall of the Savica into the lake is the richest in terms of floristics. 86 species were recorded there. The entire species composition indicates a slightly rud- eralized community. The meadow is mowed, but the edges are already becoming overgrown. In terms of the number and medium coverage it is dominated by char- acter species of dry and semi-dry central- and southern- European grasslands from the class Festuco-Brometea. We listed 39 species and if the species from ecologically similar classes Tr i f o l i o - G e ra n i e t e a and Koelerio-Co- rynephoretea are included, the number rises to 47. Well represented are also the character species of cultivated meadows from the class Molinio-Arrhenatheretea (30 153 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 species), which indicates certain human impact. The floristic inventory of this meadow encompasses five spe- cies diagnostic for the Illyirian-Submediterranean order Scorzonero-Chrysopogonetalia: Sanguisorba muricata, Dianthus sanguineus, Scorzonera villosa, Plantago holos- teum and Centaurea rupestris. This is a very high pro- portion for an Alpine region with the described climate. Despite the fact that their main distribution area is in the Submediterranean region, some of the listed species have other localities already known in mainland Slove- nia, including the Alpine phytogeographical region. Such species are e.g. Sanguisorba muricata, Plantago ho- losteum (the Julian Alps in the Soča Valley: the Tolmin- ka valley, the Lepena and Soča valleys at the village of Soča – Dakskobler 2005: 180, Dakskobler & Za vršnik 2009) and Scorzonera villosa (only on the margins of the Julian Alps, the southern foothills of Matajur, Kanalski Kolovrat – Dakskobler 2005: 182). Ukanc in Bohinj is the first known locality for Centaurea rupestris and Di- anthus sanguineus in the Slovenian part of the Julian Alps (see Figures 2 and 3). Centaurea rupestris is a south- eastern European species, a character species of the alli- ance Saturejion subspicatae, so far known in the Alps only in the Italian province of Vicenza (Aeschimann et al. 2004 b: 598). Dianthus sanguineus is an Illyrian-east- ern-Alpine species, a character species of the alliance Figure 1: Localities of the researched meadows in Ukanc (Source: State topographical map 1: 25 000, GURS) Slika 1: Lokacije popisanih travnikov v Ukancu (Vir: Državna topografska karta RS 1: 25 000 GURS) 154 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Figure 2: Distribution of Centaurea rupestris in Slovenija according the data in the FloVegSi-database Slika 2: Razširjenost vrste Centaurea rupestris v Sloveniji po podatkih v bazi FloVegSi Figure 3: Distribution of Dianthus sanguineus in Slovenija according the data in the FloVegSi database Slika 3: Razširjenost vrste Dianthus sanguineus v Sloveniji po podatkih v bazi FloVegSi Figure 4: Distribution of Scirpoides holoschoenus in Slovenia Slika 4: Razširjenost vrste Scirpoides holoschoenus v Sloveniji However , even more surprising that these species’ occurrence in Bohinj is the occurrence of Scirpoides ho- loschoenus. Although the latter was not found in the de- scribed meadow at Zlatorog, it was found on several other meadows in the upper part of Ukanc, in very sim- ilar ecological circumstances, although it is more likely to occur in hedges, on the margins of meadows and pas- tures with occasionally slightly wet soil, characteristic for springs (relevé 4 in Table 1). This Mediterranean- western-Asian species, a character species of the alliance Molinio-Holoschoenion, is not a novelty in the Alps as it is known in many regions (Aeshimann et al. 2004 b: 760). It is very rare in Slovenia (Figure 4). Its localities known so far are along the Slovenian coast, in the Vi- pava valley (Mlake) and in the Borovnica valley to the south of Ljubljana (Petelin & Bačič 2009: 418–419). The sites on the localities know so far in Slovenia were sandy banks and wet meadows, even water pools (Martinčič 2007: 798, Petelin & Bačič, ibid.). The species is included in the Red list as vulnerable (Martinčič, ibid.). In Ukanc, where its northernmost and the highest locality in Slovenia is, the species there- fore grows on slightly different sites, on semi(dry) mead- ows and their margins, on glacial moraine with shallow and only occasionally wet soil. Scorzonerion villosae, known so far in the Alps in the Italian provinces of Udine (in this province also in the foothills of the Julian Alps – see Poldini 2002: 168), Pordenone, Treviso and Belluno (Aeschimann et al. 2004 a: 354). Another rarity in the flora of the Julian Alps is Koeleria macrantha (compare Jogan et al. 2001: 214 and Jogan 2007: 885). 155 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 4 DISCUSSION AND CONCLUSIONS The growth of Submediterranean species in the Alpine valley of Bohinj raises dilemmas for a particular reason. During World War I (WWI) Ukanc was the site of a military camp. There were warehouses and dwellings for Russian war prisoners. They set up several hamlets and put up many barracks. All construction sites were first stabilised with gravel, which caused considerable damage to the meadows. Army horses grazed there, thus destroying the grass sward (Budkovič 1999: 78, 116). It can be presumed that hay to cater for the horses in the winter was brought from different places. Several spe- cies are known in this part of Bohinj, whose origin is associated with developments during World War I. Such species are, for example, Telekia speciosa and Tana cetum macrophyllum (T. Wraber 1964: 101, 2005). We believe that at least Dianthus sanguineus, Centaurea rupestris, Scorzonera villosa and perhaps also Campanula rapun- culus are not autochthonous to Bohinj, but were intro- duced with horse fodder during WWI and persisted on sites that were relatively favourable for their growth (shallow sandy soil on moraine). Similarly, Scirpoides holoschoenus in Ukanc also grows on otherwise unchar- acteristic sites. Military camps can also be associated with the occurrence of Iris sibirica subsp. erirrhiza – Table 1, relevé No. 2, even though this species has also entirely natural localities in the Julian Alps, with the closest localities to Bohinj on Štuke under Črna prst and in Krevle under Kobla (Čušin & Dakskobler 2001: 72– 73). Regardless of the supposedly non-native occurrence of Submediterranean species, the (semi)dry meadows in Ukanc remain a curiosity worthy of our attention and protection. Last but not least, they host a species of Eu- ropean conservation concern – Gladiolus palustris (relevé No. 3 in Table 1, see also Seliškar 2004). In ad- dition, Ukanc is a part of the Triglav National Park. With proper care, annual mowing and pasture that is not too intensive (such as the Mežnar homestead's prac- tice on Blato) these meadows could be preserved for pos- terity and the Submediterranean species, although most likely alien in origin, could be sustained. If they were able to survive for nearly one hundred years, they are bound to survive in the future. A thorough floristic in- ventarisation of Ukanc as a whole and a detailed map- ping of plant communities and habitat types are impera- tive. Consolidation of knowledge of Slovenian botanical enthusiasts and professional researchers is bound to give good results and add value to the tourist offer in Ukanc. 5 POVZETEK Uvod Bohinj je slikovita ledeniška dolina v Julijskih Alpah, ki je botanično (floristično, fitocenološko) še pomanjkljivo raziskana, čeprav je vednost o tukajšnji flori in vegetaci- ji precejšnja. Veliko novih spoznanj so prinesle v za- dnjem času raziskave nepoklicnih botanikov (B. Ander- le, B. Zupan, I. Veber, P. Strgar, M. Kocjan, L. Pintar, V. Leban), ki pa v glavnem še niso objavljene. V kratkem prispevku bomo opozorili na zanimivo pojavljanje sub- mediteranskih vrst na travnikih v Ukancu. Toploljubne vrste v Bohinju sicer niso redkost, kar velja še posebej za prisojna pobočja nad Bohinjskim jezerom (prim. npr. M. Wraber 1961). Kljub temu nas je najdba vrste Dian- thus sanguineus na suhem travniku v Ukancu v bližini hotela Zlatorog (det. Peter Strgar, 10. junij 2010, slika 5) presenetila. Ko smo ta travnik (slika 6) podrobno popi- sali, smo na njem našli še štiri za alpski svet precej nena- vadne vrste: Scorzonera villosa, Campanula rapunculus (slika 7), Plantago holosteum (leg. & det. Igor Daksko- bler, B. Zupan in Ivan Veber, 11. 6. 2010) in Koeleria macrantha (leg. Igor Dakskobler, B. Zupan in Ivan Veber, 11. 6. 2010, det. A. Seliškar 20. 10. 2010), ob po- novnem obisku (6.7.2010, I.D., B.Z., I.V.) tudi vrsto Cen- taurea rupestris (slika 8), v neposredni bližini tega trav- nika pa vrsto Orobanche minor. Na precej podobnih travnikih pod domačijo Mežnar (Blato) in pri zadnjih vikendih na levem bregu Savice pa sta B. Zupan in I. Veber našla tudi vrsto Scirpoides holoschoenus (leg. 27. 6. 2010, det. I. Dakskobler, 6.7. 2010, slika 9), že od prej pa na teh travnikih poznata tudi nahajališče taksonov Iris sibirica subsp. erirrhiza in Gladiolus palustris. S fitoce- nološko tabelo bomo predstavili floristično sestavo suhih travnikov v Ukancu in v razpravi razmišljali o iz- voru submediteranskih vrst v alpskem Bohinju. Metode Pri fitocenoloških popisih smo uporabili standardno srednjeevropsko metodo (Braun-Blanquet 1964). Fi- tocenološke popise smo vnesli v bazo FloVegSi ((T. Seliškar, Vreš & A. Seliškar 2003). To bazo smo upo- rabili tudi pri izdelavi arealnih kart nekaterih od obrav- navanih vrst. Nomenklaturni vir za imena praprotnic in 156 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 semenk je Mala flora Slovenije (Martinčič et al. 2007), za imena sintaksonov pa Theurillat (2004). Rezultati Floristična sestava popisanih travnikov je v tabeli 1, pri- bližne lokacije popisov pa v sliki 1. Njihova geološka podlaga je nesprijeta morena (til) – Buser (1987), tla so plitva in skeletna, ponekod tudi nekoliko mokrotna, talni tip je rendzina. Podnebje v Ukancu je gorsko, raz- m e r o m a hl a dn o in h umi dn o . T e m p e r a turn e p o da tk e imamo za Staro Fužino, ki leži na podobni nadmorski višini (547 m nm. v.), a na drugi strani jezera. Letna pov- prečna temperatura v razdobju 1961–1990 je bila tam 7,6 ° C, povprečna temperatura najtoplejšega meseca julija 17,3 ° C in najhladnejšega meseca januarja -2,8 ° C. Vege- tacijska doba traja od aprila do oktobra (temperaturne podatke povzemamo po Mekinda-Majaron 1995: 113). V istem razdobju (1961–1991) so v Ukancu (530 m nm. v.) izmerili povprečno letno množino padavin 2915 mm, največje obilje padavin je bilo v maju in novembru, naj- manj padavin pa v februarju in marcu (B. Zupančič 1995: 322). Fenološka značilnost Ukanca je za razmero- ma zgodnje spomladansko olistanje bukve (prej kot dru- gje v Bohinju), kar kaže na krajevno nekoliko toplejše podnebje in vpliv jezera. Floristično najbogatejši je travnik v bližini hotela Zlatorog oz. izliva Savice v jezero. Na njem smo popisali 86 vrst. Celotna vrstna sestava kaže na nekoliko rudera- lizirano združbo. Travnik kosijo, robni deli pa se že za- raščajo. Po številu in srednjem zastiranju na njem pre- vladujejo značilnice suhih in polsuhih srednje- in juž- noevropskih travišč iz razreda Festuco-Brometea. Na- šteli smo jih 39, če jim prištejemo še vrste ekološko soro- dnih razredov Tr i f o l i o - G e ra n i e t e a in Koelerio-Co- rynephoretea, je takih vrst celo 47. Precej obilno so za- stopane tudi značilnice gojenih travnikov iz razreda Molinio-Arrhenatheretea (30 vrst), kar kaže na določene človekove vplive. V florističnem inventarju tega travni- ka je pet vrst, ki so diagnostične za ilirsko-submedite- ranski red Scorzonero-Chrysopogonetalia: Sanguisorba muricata, Dianthus sanguineus, Scorzonera villosa, Plantago holosteum in Centaurea rupestris. To je za alp- sko območje s prej opisanim podnebjem nenavadno visok delež. Nekatere od naštetih vrst imajo kljub teži- šču uspevanja v submediteranskem območju že znana nahajališča v notranjosti Slovenije, tudi v alpskem fito- geografskem območju. Take so npr. vrste Sanguisorba muricata, Plantago holosteum (posoški del Julijskih Alp: dolina T olminke, dolini Lepene in Soče pri vasi Soča – Dakskobler 2005: 180, Dakskobler & Završnik 2009) in Scorzonera villosa (le na obrobju Julijskih Alp, južno prigorje Matajurja, kanalski Kolovrat – Dakskobler 2005: 182). Ukanc v Bohinju pa je prvo znano nahajali- šče za vrsti Centaurea rupestris in Dianthus sanguineus v slovenskem delu Julijskih Alp (glej sliki 2 in 3). Cen- taurea rupestris je jugovzhodno-evropska gorska vrsta, značilnica zveze Saturejion subspicatae, ki so jo v Alpah doslej poznali le v italijanski provinci Vicenza (Aeschi- mann et al. 2004 b: 598), Dianthus sanguineus pa je ilir- sko-vzhodno-alpska vrsta, značilnica zveze Scorzoneri- on villosae, v Alpah doslej znana v italijanskih provincah Udine (v tej provionci tudi v prigorju Julijskih Alp, glej Poldini 2002: 168), Pordenone, Treviso in Belluno (Ae- schimann et al. 2004 a: 354). Redkost v flori Julijskih Alp je tudi vrsta Koeleria macrantha (primerjaj Jogan et al. 2001: 214 in Jogan 2007: 885). Še bolj presenetljivo kot je v Bohinju pojavljanje naštetih vrst, je tukajšnje uspevanje vrste Scirpoides holoschoenus. Te sicer nismo našli na prej opisanem travniku pri Zlatorogu, pač pa na več drugih travnikih v zgornjem delu Ukanca, v ekolo- ško precej podobnih razmerah, le da bolj v mejicah, na robovih travnikov in pašnikov, kjer so tla ponekod ne- koliko povirna, mokrotna (popis 4 v tabeli 1). Ta medite- ransko-zahodnoazijska vrsta, značilnica zveze Molinio- Holoschoenion, v Alpah sicer ni novost, saj jo poznajo v številnih pokrajinah (Aeshimann et al. 2004 b: 760). V Sloveniji je zelo redka (slika 4). Doslej znana nahajališča so ob Jadranski obali, v Vipavski dolini (Mlake) in v Bo- rovniški dolini južno od Ljubljane (Petelin & Bačič 2009: 418–419). Rastišče na doslej znanih nahajališčih v Sloveniji so bilo peščeni bregovi in močvirni travniki, tudi mlake (Martinčič 2007: 798, Petelin & Bačič, ibid.). Vrsta je uvrščena v Rdeči seznam kot ranljiva (Martinčič, ibid.). V Ukancu, kjer je doslej najbolj se- verno in najvišje ležeče nahajališče v Sloveniji, ta vrsta raste torej na nekoliko drugačnih rastiščih, na pol(suhih) travnikih in na njihovih robovih, na ledeniški moreni s plitvimi in le ponekod mokrotnimi tlemi. Razprava in zaključki Uspevanje submediteranskih vrst v alpskem Bohinju vzbuja pomisleke predvsem iz enega razloga. V Ukancu je bilo med prvo svetovno vojno vojaško taborišče. V njem so bila skladišča in bivališča ruskih vojnih ujetni- kov. Osnovali so več naselij, postavili številne barake. Vsa gradbišča so najprej utrdili z gramozom in s tem na- redili veliko škode na travnikih. Na njih so se pasli voja- ški konji in uničevali travno rušo (Budkovič 1999: 78, 116). Domnevamo lahko, da so seno za zimsko oskrbo konjev prinesli iz različnih krajev. V tem delu Bohinja poznamo že nekaj vrst, katerih izvor povezujemo z do- gajanjem med prvo svetovno vojno. Taki vrsti sta npr. Telekia speciosa in Tanacetum macrophyllum (T. Wrab- er 1964: 101, 2005). Menimo, da vsaj vrste Dianthus san- 157 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 guineus, Centaurea rupestris, Scorzonera villosa in morda tudi Campanula rapunculus v Bohinju niso prvo- tne (avtohtone), temveč so sem prišle s krmo za konje med prvo svetovno vojno in so se na zanje razmeroma ugodnih rastiščih (plitvih peščenih tleh na moreni) ob- držale. Podobno velja za navadno bičevje ( Scirpoides ho- loschoenus), saj v Ukancu uspeva na zanj neznačilnih rastiščih. Najbrž z vojaškimi taborišči med prvo svetov- no vojno lahko povezujemo tudi uspevanje kojniške pe- runike (Iris sibirica subsp. erirrhiza) – Tabela 1, popis št. 2, čeprav ima ta vrsta tudi povsem naravna nahajališča v Julijskih Alpah, Bohinju najbližje na Štukah pod Črno prstjo in v Krevlah pod Koblo (Čušin & Dakskobler 2001: 72–73). Ne glede na domnevno nesamoniklost su- bmediteranskih vrst so (pol)suhi travniki v Ukancu po- sebnost, vredna naše pozornosti in predvsem varovanja. Ne nazadnje na njih uspeva tudi evropsko varstveno po- membna vrsta Gladiolus palustris (popis št. 3 v Tabeli 1, glej tudi Seliškar 2004) in Ukanc je del Triglavskega narodnega parka. S primerno rabo, vsakoletno košnjo, ne preveč intenzivno pašo (primer Mežnarjeve domačije na Blatu) lahko te travnike ohranimo zanamcem, sub- mediteranske vrste, čeprav najbrž priseljenke (apofiti), pa obdržimo. Če so tu preživele že skoraj 100 let, bodo lahko tudi v prihodnje. Nujna bi bila podrobna floristič- na inventarizacija celotnega Ukanca in podrobno karti- ranje rastlinskih združb oz. habitatnih tipov. Združitev znanja domačih botaničnih navdušencev in poklicnih raziskovalcev bi nedvomno dalo dobre rezultate in turis- tičnemu Ukancu prineslo dodano vrednost. ACKNOWLEDGEMENT Sincere thanks to Mag. Andrej Seliškar for his assistance in the determination of two grasses, Koeleria macrantha and Festuca nigrescens. He and Dr. Branko Vreš also reviewed our article and contributed valuable corrections. Iztok Sajko prepared Figure 6 for print. English translation by Andreja Šalamon Verbič. REFERENCES – LITERATURA Aeschimann, D., K. Lauber, D. M. Moser & J.-P. Theurillat, 2004 a: Flora alpina. Bd. 1: Lycopodiaceae−Apiaceae. Haupt Verlag, Bern, Stuttgart, Wien. Aeschimann, D., K. Lauber, D. M. Moser & J.-P. Theurillat, 2004 b: Flora alpina. Bd. 2: Gentianaceae–Orchidace- ae. Haupt Verlag, Bern, Stuttgart, Wien. Braun-Blanquet, J., 1964: Pflanzensoziologie. 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Frajman, I. Leskovar, D. Naglič, A. Podobnik, B. Rozman, S. Strgulc - Krajšek & B. Trčak, 2001: Gradivo za Atlas flore Slovenije. Center za kartografijo favne in flore, Miklavž na Dravskem polju. Martinčič, A., 2007: Cyperaceae – ostričevke. V: Martinčič, A. (ur.): Mala flora Slovenije. Ključ za določanje prapro- tnic in semenk. Tehniška založba Slovenije, Ljubljana: 793–821. Martinčič, A., T. Wraber, N.Jogan, A. Podobnik, B. T urk, B. Vreš, V . Ravnik, B. Frajman, S. Strgulc Krajšek, B. Trčak, T. Bačič, M. A. Fischer, K. Eler & B. Surina, 2007: Mala flora Slovenije. Ključ za določanje praprot- nic in semenk. Četrta, dopolnjena in spremenjena izdaja. Tehniška založba Slovenije, Ljubljana. Mekinda - Majaron, T., 1995: Klimatografija Slovenije. Temperatura zraka 1961–1990. Hidrometeorološki zavod Republike Slovenije, Ljubljana. 158 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Petelin, S. & T. Bačič, 2009: Botanični sprehod po Borovniški dolini. Proteus (Ljubljana) 71 (9–10): 417–422. Poldini, L. (s sodelovanjem G. Oriolo & M. Vidali), 2002: Nuovo Atlante corologico delle piante vascolari nel Friuli Venezia Giulia. Regione Autonoma Friuli Venezia Giulia, Azienda Parchi e Foreste Regionali & Università degli Studi di Trieste, Dipartimento di Biologia, Udine. Seliškar, A., 2004: Gladiolus palustris Gaudin – močvirski meček. V: Čušin, B. (ed.) & al.: Natura 2000 v Sloveniji – rastline, ZRC, ZRC SAZU, Ljubljana: 97–101. Seliškar, T., B. Vreš & A. Seliškar, 2003: FloVegSi 2.0. Računalniški program za urejanje in analizo bioloških po- datkov. Biološki inštitut ZRC SAZU, Ljubljana. Theurillat, J.-P., 2004: Pflanzensoziologisches System. V: Aeschimann, D., K. Lauber, D. M. Moser & J.-P. Theurillat: Flora alpina 3: Register. Haupt Verlag, Bern, Stuttgart, Wien: 301–313. Wraber, M., 1961: Termofilna združba gabrovca in omelike v Bohinju (Cytisantho-Ostryetum assoc. nova). Razprave 4. razreda SAZU (Ljubljana) 6: 5–50. Wraber, T., 1964: Floristične novosti iz Julijskih Alp. Biološki vestnik (Ljubljana) 12: 97–108. Wraber, T., 2005: O verjetni nesamoniklosti nekaterih semenk, primerov za florulo castrensis, v flori Slovenije. Hlad- nikia (Ljubljana) 18: 3–10. Zupančič, B., 1995: Klimatografija Slovenije. Padavine 1961–1990. Hidrometeorološki zavod Republike Slovenije, Ljubljana. 159 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Figure 5 (Slika 5): Dianthus sanguineus in Ukanc (Vrsta Dianthus sanguineus v Ukancu) – Photo (Foto) Peter Strgar Figure 6 (Slika 6): Meadow at Ukanc, locality of the sub-Mediterranean species (Travnik v Ukancu, nahajališče submediteranskih vrst) Photo (Foto) Igor Dakskobler 160 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Figure 9 (Slika 9): Scirpoides holoschoenus in Ukanc (Vrsta Scirpoides holoschoenus v Ukancu) – Photo (Foto) Peter Strgar Figure 7 (Slika 7): Campanula rapunculus in Ukanc (Vrsta Campanula rapunculus v Ukancu) – Photo (Foto) Peter Strgar Figure 8 (Slika 8): Centaurea rupestris in Ukanc (Vrsta Centaurea rupestris v Ukancu) – Photo (Foto) Peter Strgar 161 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Table 1: Phytosociological composition of meadows on unconsolidated moraine in Ukanc (Bohinj, the Julian Alps) Tabela 1: Fitocenološka sestava travnikov na nesprijeti moreni v Ukancu (Bohinj, Julijske Alpe) Number of relevé (Zaporedna številka popisa) 1 2 3 4 Working number of relevé (Delovna številka popisa) 236962 237001 237000 237005 Altitude in m (Nadmorska višina v m) 527 560 560 570 A s p e c t ( L e g a ) 0000 Slope in degrees (Nagib v stopinjah) 0 0 0 0 Parent material (Matična podlaga) Mo Mo Mo Mo S o i l ( T l a ) RRRR Stoniness in % (Kamnitost v %) 0 0 0 0 Cover in % (Zastiranje v %) Herb layer (Zeliščna plast) E1 100 100 100 100 Relevé area (Velikost popisne ploskve) m 2 40 20 20 20 Number of species (Število vrst) 86 54 31 30 Date of taking relevé (Datum popisa) 6/11/2010 6/11/2010 6/11/2010 7/6/2010 Locality (Nahajališče) Ukanc - Jezero Ukanc - Blato Ukanc - Blato Ukanc - Blato Quadrant (Kvadrant) 9749/1 9748/2 9748/2 9748/2 SCh Scorzonero-Chrysopogonetalia Pr. Sanguisorba muricata E 11+.+3 Dianthus sanguineus E 12...1 Centaurea rupestris E 1+...1 Plantago holosteum E 1+...1 Scorzonera villosa E 1+...1 FB Festuco-Brometea Rhinanthus freynii E1 3 3 3 + 4 Euphorbia cyparissias E 111114 Salvia pratensis E 111214 Centaurea scabiosa subsp. fritschii E 1+1114 Peucedanum oreoselinum E1 1 1 1 . 3 Koeleria pyramidata E1 1 1 . + 3 Briza media E 111.13 Brachypodium rupestre E1 + . 1 + 3 Hippocrepis comosa E 1++.+3 Anthyllis vulneraria E1 + . + + 3 Thymus praecox E 11+.+3 Bromopsis erecta E1 2 2 . . 2 Thlaspi praecox E1 1 + . . 2 Orobanche gracilis E1 + 1 . . 2 Plantago media E1 + + . . 2 Polygala comosa E1 + + . . 2 Ranunculus polyanthemophyllus E1 + + . . 2 Helianthemum ovatum E1 + + . . 2 Campanula rotundifolia E1 + + . . 2 Carlina acaulis E1 + + . . 2 Campanula glomerata E 1+.+.2 Trifolium montanum E1 . 1 1 . 2 Galium verum E1 . . + + 2 Silene vulgaris subsp. vulgaris E 11...1 Medicago lupulina E 11...1 Allium carinatum subsp. carinatum E 1+...1 Arabis hirsuta E 1+...1 Carex humilis E 1+...1 Filipendula vulgaris E 1+...1 Hieracium bauhinii E 1+...1 Pimpinella saxifraga E 1+...1 Thymus pulegioides E 1+...1 Verbascum austriacum E 1+...1 *Koeleria macrantha E 1+...1 Orchis ustulata E 1r...1 Medicago falcata E1 . 1 . . 1 Buphthalmum salicifolium E1 . + . . 1 Iris sibirica subsp. erirrhiza E1 . + . . 1 162 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 Teucrium chamaedrys E1 . + . . 1 Potentilla pusilla E 1..+.1 MC Molinion caeruleae Galium boreale E1 + 1 + . 3 Molinia caerulea subsp. caerulea E 1+...1 Gladiolus palustris E 1..1.1 Gymnadenia conopsea E 1..1.1 Scirpoides holoschoenus E1 . . . 1 1 MA Molinio-Arrhenatheretea Trifolium pratense E 131114 Plantago lanceolata E1 1 1 2 + 4 Leontodon hispidus E 111+14 Centaurea jacea E 11+++4 Lotus corniculatus E1 + + + 1 4 Achillea millefolium E1 1 + . 1 3 Dactylis glomerata E 11+.+3 Erigeron annuus E 1.+++3 Helictotrichon pubescens E1 3 2 . . 2 Galium mollugo E1 1 + . . 2 Festuca pratensis E1 + 1 . . 2 Tragopogon orientalis E1 + + . . 2 Leucanthemum ircutianum E1 1 . . + 2 Stellaria graminea E 1+.+.2 Agrostis capillaris E1 + . . + 2 Colchicum autumnale E1 . + + . 2 Knautia arvensis E 12...1 Ranunculus acris E 11...1 Ajuga reptans E 1+...1 Allium scorodoprasum E 1+...1 Arrhenatherum elatius E 1+...1 Bromus hordeaceus E 1+...1 Campanula patula E 1+...1 Rhinanthus minor E 1+...1 Rumex acetosa E 1+...1 Trifolium repens E 1+...1 Veronica chamaedrys E 1+...1 Daucus carota E 1+...1 Euphrasia rostkoviana E 1+...1 Lychnis flos-cuculi E 1+...1 Poa pratensis E 1+...1 Trisetum f lavescens E 1+...1 Crepis biennis E1 . + . . 1 Pastinaca sativa E1 . + . . 1 Vicia cracca E 1..+.1 Festuca arundinacea E1 . . . 1 1 Prunella vulgaris E1 . . . + 1 Agrostis stolonifera E1 . . . + 1 KC Koelerio-Corynephoretea Echium vulgare E1 1 1 . . 2 Arenaria serpyllifolia E 1+...1 Cerastium pumilum E 1+...1 Sedum sexangulare E 1+...1 ES Elyno-Seslerietea Galium anisophyllum E1 + + . . 2 Betonica alopecuros E 1.1.12 Carduus crassifolius E1 . + + . 2 Phyteuma orbiculare E1 . + + . 2 CU Calluno-Ulicetea *Festuca nigrescens E1 1 1 . . 2 Anthoxanthum odoratum E 1+...1 Luzula campestris E 1+...1 Carex pallescens E 1..+.1 Number of relevé (Zaporedna številka popisa) 1234P r . 163 I. DAKSKOBLER, P. STRGAR, I. VEBER & B. ZUPAN: SUBMEDITERRANEAN MEADOWS IN THE ALPINE BOHINJ VALLEY? FOLIA BIOLOGICA ET GEOLOGICA 51/4 – 2010 SCF Scheuchzerio-Caricetea fuscae Carex panicea E1 . . . + 1 Juncus articulatus E1 . . . + 1 TG Tr ifolio - Ge ranie te a Thalictrum minus E1 + + 1 . 3 Polygonatum odoratum E 1+.+.2 Campanula rapunculus E1 + . . . 1 Anthericum ramosum E1 + . . . 1 Viola hirta E1 + . . . 1 TR Thlaspietea rotundifolii Petasites paradoxus E1 . 2 1 + 3 Biscutella laevigata E1 + + . . 2 EP Erico-Pinetea Carex alba E1 . 1 . . 1 Carex ornithopoda E1 . + . . 1 QP Quercetalia pubescentis Convallaria majalis E 1.++.2 Carex flacca E1 . . + . 1 QF Querco-Fagetea Carex montana E1 + . . . 1 Cruciata glabra E1 + . . . 1 Melica nutans E1 . + . . 1 Equisetum arvense E1 . + . . 1 * det. A. Seliškar Number of relevé (Zaporedna številka popisa) 1234P r .