2005
Alien plants in temperate weed communities: prehistoric and recent invaders occupy different habitats
PYŠEK, Petr, Vojtěch JAROŠÍK, Milan CHYTRÝ, Zdeněk KROPÁČ, Lubomír TICHÝ et. al.Základní údaje
Originální název
Alien plants in temperate weed communities: prehistoric and recent invaders occupy different habitats
Název česky
Nepůvodní rostliny v temperátních plevelových společenstvech: historické a recentní invazní druhy obsazují různá stanoviště
Autoři
PYŠEK, Petr (203 Česká republika), Vojtěch JAROŠÍK (203 Česká republika), Milan CHYTRÝ (203 Česká republika, garant), Zdeněk KROPÁČ (203 Česká republika), Lubomír TICHÝ (203 Česká republika) a Jan WILD (203 Česká republika)
Vydání
Ecology, Washington, Ecological Society of America, 2005, 0012-9658
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.506
Kód RIV
RIV/00216224:14310/05:00013891
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000227659700026
Klíčová slova anglicky
agricultural management; archaeophytes; biological invasions; Central Europe; climate; crop characteristics; exotic species; invasion history; Neolithic agriculture; neophytes; soil type
Štítky
Změněno: 16. 12. 2006 19:05, prof. RNDr. Milan Chytrý, Ph.D.
V originále
Variables determining the number of native and alien plants on arable land in Central Europe are identified. Species richness of 698 samples of weed floras recorded in the Czech Republic in plots of a standard size of 100 m2 in 1955-2000 was studied in relation to altitudinally based floristic region, soil type, type of cultivated crop, climatic variables, altitude, year of the record, crop cover and height, and human population density in the region. Vascular plant species were classified into native and alien, the latter divided in archaeophytes, introduced before AD 1500, and neophytes, introduced after this date. The use of minimal adequate models in the analysis of covariance allowed determination of the net effects of mutually correlated environmental variables. Models for particular species groups explained 33-48% of variation in species numbers and 27-51% in proportions; however, explanatory variables affected native species, archaeophytes, and neophytes differently. The number and proportion of neophytes increased in 1955-2000, whereas the number of native species and archaeophytes declined (in archaeophytes more slowly in the warm than in the moderate to cool altitudinal floristic region). In warm and dry regions and on dry soils, where most archaeophytes find optimum conditions, fewer native species are able to persist in weed communities than in colder and wetter regions. Archaeophytes respond like neophytes to some variables (climate, seasonal development of crop) and alternatively like native species to other variables (increasing agricultural intensification through time, human population density). Archaeophytes are common in old crops introduced with the beginning of agriculture (cereals), but are poorly represented in relatively recently introduced crops (rape, maize), where neophytes are most numerous. These patterns reflect the history of plant invasions in Central Europe. Neolithic agriculture, introduced from the Near East in the sixth millenium BC, brought archaeophytes with crops and, by creating intense and continuous propagule pressure and imposing new agricultural management, facilitated their invasion. By contrast, the crops introduced during the past five centuries and their specific agrotechnical management have supported spreading of other weed species, mainly invaders from overseas.
Česky
Analýza zastoupení archeofytů a neofytů ve středoevropské plevelové vegetaci.
Návaznosti
MSM 143100010, záměr |
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MSM0021622416, záměr |
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