ŠILC, Urban, Zdeňka LOSOSOVÁ a Sava VRBNIČANIN. Weeds shift from generalist to specialist: narrowing of ecological niches along a north-south gradient. Preslia. Česká botanická společnost, 2014, roč. 86, č. 1, s. 35-46. ISSN 0032-7786. |
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@article{1163775, author = {Šilc, Urban and Lososová, Zdeňka and Vrbničanin, Sava}, article_number = {1}, keywords = {Balkan; Caucalidion; central Europe; niche width; species co-occurrence; weed vegetation}, language = {eng}, issn = {0032-7786}, journal = {Preslia}, title = {Weeds shift from generalist to specialist: narrowing of ecological niches along a north-south gradient}, volume = {86}, year = {2014} }
TY - JOUR ID - 1163775 AU - Šilc, Urban - Lososová, Zdeňka - Vrbničanin, Sava PY - 2014 TI - Weeds shift from generalist to specialist: narrowing of ecological niches along a north-south gradient JF - Preslia VL - 86 IS - 1 SP - 35-46 EP - 35-46 PB - Česká botanická společnost SN - 00327786 KW - Balkan KW - Caucalidion KW - central Europe KW - niche width KW - species co-occurrence KW - weed vegetation N2 - There are changes in the realized niches of species along environmental gradients, especially at the edge of their distribution where they become more specialized. A classical case is weeds of the Caucalidion alliance that spread with agriculture from the Fertile Crescent and thrive in a wide range of climates that differ from that prevailing in their native area.We used large data sets of vegetation collected in central Europe (3383 plots) and north-western Balkans (4505 plots) and used a co-occurrence species algorithm to calculate the specialist/generalist status of weed species. The change in the width of the ecological niches was tested using target species. Our assumptions were confirmed as the same characteristic species of Caucalidion weed vegetation in the north-western Balkans are more specialized in central Europe, where they occupy more basic habitats that vary less in terms of soil reaction. Testing niche theory using real data is especially important for nature conservation because specialists are more prone to decline in abundance or to go extinct ER -
ŠILC, Urban, Zdeňka LOSOSOVÁ a Sava VRBNIČANIN. Weeds shift from generalist to specialist: narrowing of ecological niches along a north-south gradient. \textit{Preslia}. Česká botanická společnost, 2014, roč.~86, č.~1, s.~35-46. ISSN~0032-7786.
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