Post-dispersal seed predation of woody forest species limits recolonization of forest plantations on ex-arable land
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Post-dispersal seed predation of woody forest species limits recolonization of forest plantations on ex-arable land. / Bruun, Hans Henrik; Valtinat, Karin; Kollmann, Johannes; Brunet, Jörg.
I: Preslia, Bind 82, Nr. 3, 2010, s. 345-356.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Post-dispersal seed predation of woody forest species limits recolonization of forest plantations on ex-arable land
AU - Bruun, Hans Henrik
AU - Valtinat, Karin
AU - Kollmann, Johannes
AU - Brunet, Jörg
PY - 2010
Y1 - 2010
N2 - Reforestation of ex-arable land in temperate regions increases the area of potential habitat for forest plants. However, the herbaceous plant layer of these plantations contains fewer forest species than comparable plantations at continuously forested sites. One of the reasons for this might be differences in recruitment. The present study addresses post-dispersal seed predation, mainly of woody plants, as the factor limiting the recolonization of young oak plantations in southern Sweden. Our objectives were to investigate differences in dispersal and post-dispersal seed predation between first-generation forest plantations on ex-arable land and re-planted clear-cuts on continuously forested land. There was no recruitment following the experimental sowing of six commonwoody species (Alnus glutinosa, Betula pendula, Frangula alnus, Sambucus nigra, Sorbus aucuparia and Sorbus intermedia). Thus, the colonization of forest plantations by native shrubs and trees appears to be habitat-limited; the only exception being Rhamnus catharticus, for which poor dispersal ability may be more important. Post-dispersal seed predation of forest shrubs and trees was marked, especially in relatively small and isolated plantations on ex-arable land. There was a high seed predation of Crataegus monogyna, Sorbus aucuparia and Viburnum opulus on ex-arable land, while that of Frangula alnus and Sambucus racemosa was not associated with site placement and land-use history. Seed predation is probably a more important factor limiting restoration of near-natural forests than previously thought.
AB - Reforestation of ex-arable land in temperate regions increases the area of potential habitat for forest plants. However, the herbaceous plant layer of these plantations contains fewer forest species than comparable plantations at continuously forested sites. One of the reasons for this might be differences in recruitment. The present study addresses post-dispersal seed predation, mainly of woody plants, as the factor limiting the recolonization of young oak plantations in southern Sweden. Our objectives were to investigate differences in dispersal and post-dispersal seed predation between first-generation forest plantations on ex-arable land and re-planted clear-cuts on continuously forested land. There was no recruitment following the experimental sowing of six commonwoody species (Alnus glutinosa, Betula pendula, Frangula alnus, Sambucus nigra, Sorbus aucuparia and Sorbus intermedia). Thus, the colonization of forest plantations by native shrubs and trees appears to be habitat-limited; the only exception being Rhamnus catharticus, for which poor dispersal ability may be more important. Post-dispersal seed predation of forest shrubs and trees was marked, especially in relatively small and isolated plantations on ex-arable land. There was a high seed predation of Crataegus monogyna, Sorbus aucuparia and Viburnum opulus on ex-arable land, while that of Frangula alnus and Sambucus racemosa was not associated with site placement and land-use history. Seed predation is probably a more important factor limiting restoration of near-natural forests than previously thought.
KW - deciduous forest
KW - dispersal ability
KW - forest restoration
KW - habitat limitation
KW - land-use history
KW - species richness
KW - RECRUITMENT LIMITATION
KW - INTEGRATED ANALYSIS
KW - PLANT-POPULATIONS
KW - DECIDUOUS FORESTS
KW - WESTERN BELGIUM
KW - SPATIAL SCALES
KW - DISPERSAL
KW - COLONIZATION
KW - LANDSCAPE
KW - HABITAT
M3 - Journal article
VL - 82
SP - 345
EP - 356
JO - Preslia
JF - Preslia
SN - 0032-7786
IS - 3
ER -
ID: 34277936