Rocks and walls: natural versus secondary habitats

LÁNÍKOVÁ, Deana a Zdeňka LOSOSOVÁ. Rocks and walls: natural versus secondary habitats. Online. Folia Geobotanica. Průhonice: Institute of Botany, 2009, roč. 44, č. 3, s. 263-280. ISSN 1211-9520. [citováno 2024-04-23]

Základní údaje

• Originální název: Rocks and walls: natural versus secondary habitats
• Název česky: Skály a zdi: přírozená versus sekundární vegetace
• Autoři: LÁNÍKOVÁ, Deana (203 Česká republika, garant, domácí) a Zdeňka LOSOSOVÁ (203 Česká republika, domácí)
• Vydání: Folia Geobotanica, Průhonice, Institute of Botany, 2009, 1211-9520.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Článek v odborném periodiku
• Obor: 10600 1.6 Biological sciences
• Stát vydavatele: Česká republika
• Utajení: není předmětem státního či obchodního tajemství
• WWW: URL
• Impakt faktor: Impact factor: 1.320
• Kód RIV: RIV/00216224:14310/09:00028622
• Organizační jednotka: Přírodovědecká fakulta
• UT WoS: 000270980500004
• Klíčová slova anglicky: alien species; chasmophytic vegetation; diversity; Ellenberg indicator values; endangered species
• Příznaky: Recenzováno

Anotace

Walls are often considered secondary habitats for vegetation of natural rock surfaces. Compared with rocks, walls differ in many features, for example the presence of a binding material (mainly calcareous mortar), location in settlements and exposure to human impact. A data set of 1,205 phytosociological relevés recorded on horizontal wall tops, wall verticals and rock verticals in the Czech Republic was used to compare their vegetation with regard to i) species composition (frequent species, species diversity, endangered and alien species) and ii) the ecological requirements of the respective species. Gamma diversity of vascular plant species was comparable in all habitat types (242 species on wall tops, 212 species on wall verticals and 197 species on rock verticals). Wall verticals had higher beta diversity, but lower alpha diversity than rocks. Remarkable differences were found comparing the diversity of alien species. Whereas alpha and gamma diversities of aliens were higher on both wall habitats, beta diversity of aliens was the highest on rocks. The high floristic heterogeneity of walls is mainly attributable to the large pool of species from the surrounding urbanized landscape (e.g., cultivated ornamental species and synanthropic weeds) that are favoured by high nutrient inputs. In contrast, species characteristic of rocks are mainly substrate specialists. Walls and rocks share the frequent occurrence of ferns, grasses and herbs typical of forest understorey and clearings. Compared with rocks, walls are generally colonized by species requiring higher nutrient content, soil reaction, temperature and moisture. Secondary wall habitats might be suitable for some rare and endangered species, but contrary to rocks their occurrences are only accidental and temporary. The

Anotace česky

Walls are often considered secondary habitats for vegetation of natural rock surfaces. Compared with rocks, walls differ in many features, for example the presence of a binding material (mainly calcareous mortar), location in settlements and exposure to human impact. A data set of 1,205 phytosociological relevés recorded on horizontal wall tops, wall verticals and rock verticals in the Czech Republic was used to compare their vegetation with regard to i) species composition (frequent species, species diversity, endangered and alien species) and ii) the ecological requirements of the respective species. Gamma diversity of vascular plant species was comparable in all habitat types (242 species on wall tops, 212 species on wall verticals and 197 species on rock verticals). Wall verticals had higher beta diversity, but lower alpha diversity than rocks. Remarkable differences were found comparing the diversity of alien species. Whereas alpha and gamma diversities of aliens were higher on both wall habitats, beta diversity of aliens was the highest on rocks. The high floristic heterogeneity of walls is mainly attributable to the large pool of species from the surrounding urbanized landscape (e.g., cultivated ornamental species and synanthropic weeds) that are favoured by high nutrient inputs. In contrast, species characteristic of rocks are mainly substrate specialists. Walls and rocks share the frequent occurrence of ferns, grasses and herbs typical of forest understorey and clearings. Compared with rocks, walls are generally colonized by species requiring higher nutrient content, soil reaction, temperature and moisture. Secondary wall habitats might be suitable for some rare and endangered species, but contrary to rocks their occurrences are only accidental and temporary. The

Návaznosti

• GA206/09/0329, projekt VaV: Název: Vegetace České republiky: dokončení národního přehledu rostlinných společenstev

Investor: Grantová agentura ČR, Vegetace České republiky: dokončení národního přehledu rostlinných společenstev

• IAA601630803, projekt VaV: Název: Makroekologická studie biodiverzity velkých měst: druhová bohatost, invaze a biotická homogenizace na příkladu dvou taxonomických skupin

Investor: Akademie věd ČR, Makroekologická studie biodiverzity velkých měst: druhová bohatost, invaze a biotická homogenizace na příkladu dvou taxonomických skupin

• MSM0021622416, záměr: Název: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Diverzita biotických společenstev: kauzální analýza variability v prostoru a čase