TY  - JOUR
A1  - Däubler, Thomas Karl
A1  - Pfeiffer, S.
A1  - Hörhold, Hans-Heinrich
A1  - Neher, Dieter
T1  - Photogeneration of charge carriers in segmented arylamino-PPV derivatives
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Däubler, Thomas Karl
A1  - Cimrova, V.
A1  - Pfeiffer, S.
A1  - Hörhold, Hans-Heinrich
A1  - Neher, Dieter
T1  - Field and wavelength dependence of charge carrier photogeneration in soluble PPV derivatives
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Wells, Konstans
A1  - O'Hara, R. B.
A1  - Boehm, S. M.
A1  - Gockel, Sonja
A1  - Hemp, Andreas
A1  - Renner, S. C.
A1  - Pfeiffer, S.
A1  - Boehning-Gaese, Katrin
A1  - Kalko, Elisabeth K. V.
T1  - Trait-dependent occupancy dynamics of birds in temperate forest landscapes fine-scale observations in a hierarchical multi-species framework
JF  - Animal conservation
N2  - Silvicultural practices lead to changes in forest composition and structure and may impact species diversity from the overall regional species pool to stand-level species occurrence. We explored to what extent fine-scale occupancy patterns in differently managed forest stands are driven by environment and ecological traits in three regions in Germany using a multi-species hierarchical model. We tested for the possible impact of environmental variables and ecological traits on occupancy dynamics in a joint modelling exercise while taking possible variation in coefficient estimates over years and plots into account. Bird species richness differed across regions and years, and trends in species richness across years were different in the three regions. On the species level, forest management affected occupancy of species in all regions, but only 35% of the total assemblage-level variation in occurrence probability was explained by either forest type and successional stage and <?1% by forest edge. On the assemblage level, bird occurrence decreased with body mass in all regions. Species with smaller breeding ranges had lower occurrence probabilities in one region, while later spring arrival decreased occurrence probabilities in the two other regions. Spatial variation in the effect size of trait covariates such as species phylogeny and breeding strata showed that variation in patch occupancy due to fine-scale differences in forest management is, to some extent, predictable from ecological traits. Our results show that environmental factors and ecological traits jointly predict variation in bird occupancy patterns and their response to forest management. Observations at the fine scale of forest stands, at which conservation efforts can be arranged along with forest management practices in heterogeneous environments, have been shown to provide meaningful insights despite the difficulties involved in monitoring mobile organisms such as birds at the plot level.
KW  - bird community
KW  - biodiversity conservation
KW  - forest management
KW  - functional traits
KW  - multi-species hierarchical modelling
KW  - patch occupancy
KW  - silviculture
Y1  - 2012
U6  - https://doi.org/10.1111/j.1469-1795.2012.00560.x
SN  - 1367-9430
VL  - 15
IS  - 6
SP  - 626
EP  - 637
PB  - Wiley-Blackwell
CY  - Hoboken
ER  -