Pattern of local plant species richness along a gradient of
landscape topographical heterogeneity: result of spatial mass
effect or environmental shift?

J 2010

Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift?

ZELENÝ, David, Ching-Feng LI a Milan CHYTRÝ

Základní údaje

Originální název

Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift?

Autoři

ZELENÝ, David (203 Česká republika, garant, domácí), Ching-Feng LI (158 Tchaj-wan, domácí) a Milan CHYTRÝ (203 Česká republika, domácí)

Vydání

Ecography, Willey-Blackwell, 2010, 0906-7590

Další údaje

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

Odkazy

Ecography website

Impakt faktor

Impact factor: 4.417

Kód RIV

RIV/00216224:14310/10:00044417

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000280457500016

Klíčová slova anglicky

generalists; specialists; modeling

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 31. 1. 2011 16:14, prof. RNDr. Milan Chytrý, Ph.D.

Anotace

V originále

Several processes are hypothesised to mediate the relationship between local (microsite) plant species richness and the topographical heterogeneity of the surrounding landscape. In a topographically heterogeneous landscape with various habitats occurring close to each other, local species richness may be enriched by species from surrounding habitats due to the spatial mass effect (sink-source dynamics). In contrast, increased habitat fragmentation due to spatial heterogeneity may have a negative effect on local species richness. The spatial mass effect is thought to be more pronounced in communities with a higher ratio of generalists, as generalists are more likely to establish viable populations in sink habitats. To reveal the pattern of local species richness along a gradient of landscape topographical heterogeneity at middle altitudes of the Bohemian Massif, we used 2551 forest vegetation plots stored in the Czech National Phytosociological Database. We developed an analytical approach relating the pattern of local species richness of vegetation types to the gradient of landscape topographical heterogeneity. An increase or decrease in species richness with increasing landscape heterogeneity was related to changes in the generalist/specialist ratio, and also to changes in soil reaction and productivity estimated through Ellenberg indicator values. Local species richness along a gradient of increasing landscape heterogeneity increased in nutrient-poor vegetation and decreased in nutrient-rich vegetation. Nutrient-poor vegetation types, such as thermophilous and acidophilous oak forests, also had a high proportion of habitat generalists, supporting the hypothesis that increased richness in heterogeneous landscapes may result from the spatial mass effect. However, the same pattern may be explained by a shift in environmental conditions along the landscape heterogeneity gradient, such as increasing productivity of nutrient-rich vegetation types or increasing soil reaction of most vegetation types in more heterogeneous landscapes. We discuss available evidence and conclude that these two explanations need not be mutually exclusive.

Návaznosti

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

Citovat

ZELENÝ, David, Ching-Feng LI a Milan CHYTRÝ. Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift? Ecography. Willey-Blackwell, 2010, roč. 33, č. 3, s. 578-589, 11 s. ISSN 0906-7590.

@article{892561,
   author = {Zelený, David and Li, ChingandFeng and Chytrý, Milan},
   article_number = {3},
   keywords = {generalists; specialists; modeling},
   language = {eng},
   issn = {0906-7590},
   journal = {Ecography},
   title = {Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift?},
   url = {http://www3.interscience.wiley.com/journal/123239422/abstract},
   volume = {33},
   year = {2010}
}

TY  - JOUR
ID  - 892561
AU  - Zelený, David - Li, Ching-Feng - Chytrý, Milan
PY  - 2010
TI  - Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift?
JF  - Ecography
VL  - 33
IS  - 3
SP  - 578-589
EP  - 578-589
PB  - Willey-Blackwell
SN  - 09067590
KW  - generalists
KW  - specialists
KW  - modeling
UR  - http://www3.interscience.wiley.com/journal/123239422/abstract
N2  - Several processes are hypothesised to mediate the relationship between local (microsite) plant species richness and the topographical heterogeneity of the surrounding landscape. In a topographically heterogeneous landscape with various habitats occurring close to each other, local species richness may be enriched by species from surrounding habitats due to the spatial mass effect (sink-source dynamics). In contrast, increased habitat fragmentation due to spatial heterogeneity may have a negative effect on local species richness. The spatial mass effect is thought to be more pronounced in communities with a higher ratio of generalists, as generalists are more likely to establish viable populations in sink habitats. To reveal the pattern of local species richness along a gradient of landscape topographical heterogeneity at middle altitudes of the Bohemian Massif, we used 2551 forest vegetation plots stored in the Czech National Phytosociological Database. We developed an analytical approach relating the pattern of local species richness of vegetation types to the gradient of landscape topographical heterogeneity. An increase or decrease in species richness with increasing landscape heterogeneity was related to changes in the generalist/specialist ratio, and also to changes in soil reaction and productivity estimated through Ellenberg indicator values. Local species richness along a gradient of increasing landscape heterogeneity increased in nutrient-poor vegetation and decreased in nutrient-rich vegetation. Nutrient-poor vegetation types, such as thermophilous and acidophilous oak forests, also had a high proportion of habitat generalists, supporting the hypothesis that increased richness in heterogeneous landscapes may result from the spatial mass effect. However, the same pattern may be explained by a shift in environmental conditions along the landscape heterogeneity gradient, such as increasing productivity of nutrient-rich vegetation types or increasing soil reaction of most vegetation types in more heterogeneous landscapes. We discuss available evidence and conclude that these two explanations need not be mutually exclusive.
ER  -

ZELENÝ, David, Ching-Feng LI a Milan CHYTRÝ. Pattern of local plant species richness along a gradient of landscape topographical heterogeneity: result of spatial mass effect or environmental shift? \textit{Ecography}. Willey-Blackwell, 2010, roč.~33, č.~3, s.~578-589, 11 s. ISSN~0906-7590.

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