TY  - JOUR
A1  - Caron, Maria Mercedes
A1  - De Frenne, Pieter
A1  - Brunet, J.
A1  - Chabrerie, Olivier
A1  - Cousins, S. A. O.
A1  - De Backer, L.
A1  - Decocq, G.
A1  - Diekmann, M.
A1  - Heinken, Thilo
A1  - Kolb, A.
A1  - Naaf, T.
A1  - Plue, J.
A1  - Selvi, Federico
A1  - Strimbeck, G. R.
A1  - Wulf, Monika
A1  - Verheyen, Kris
T1  - Interacting effects of warming and drought on regeneration and early growth of Acer pseudoplatanus and A. platanoides
JF  - Plant biology
N2  - Climate change is acting on several aspects of plant life cycles, including the sexual reproductive stage, which is considered amongst the most sensitive life-cycle phases. In temperate forests, it is expected that climate change will lead to a compositional change in community structure due to changes in the dominance of currently more abundant forest tree species. Increasing our understanding of the effects of climate change on currently secondary tree species recruitment is therefore important to better understand and forecast population and community dynamics in forests. Here, we analyse the interactive effects of rising temperatures and soil moisture reduction on germination, seedling survival and early growth of two important secondary European tree species, Acer pseudoplatanus and A.platanoides. Additionally, we analyse the effect of the temperature experienced by the mother tree during seed production by collecting seeds of both species along a 2200-km long latitudinal gradient. For most of the responses, A.platanoides showed higher sensitivity to the treatments applied, and especially to its joint manipulation, which for some variables resulted in additive effects while for others only partial compensation. In both species, germination and survival decreased with rising temperatures and/or soil moisture reduction while early growth decreased with declining soil moisture content. We conclude that although A.platanoides germination and survival were more affected after the applied treatments, its initial higher germination and larger seedlings might allow this species to be relatively more successful than A.pseudoplatanus in the face of climate change.
KW  - Acer platanoides
KW  - Acer pseudoplatanus
KW  - climate change
KW  - drought
KW  - reproduction
KW  - seed
KW  - temperature
Y1  - 2015
U6  - https://doi.org/10.1111/plb.12177
SN  - 1435-8603
SN  - 1438-8677
VL  - 17
IS  - 1
SP  - 52
EP  - 62
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Denoux, Clemence
A1  - Martin-Creuzburg, Dominik
A1  - Koussoroplis, Apostolos-Manuel
A1  - Perriere, Fanny
A1  - Desvillettes, Christian
A1  - Bourdier, Gilles
A1  - Bec, Alexandre
T1  - Phospholipid-bound eicosapentaenoic acid (EPA) supports higher fecundity than free EPA in Daphnia magna
JF  - Journal of plankton research
N2  - Nutrition bioassays in which polyunsaturated fatty acids (PUFA)-deficient diets were supplemented with free long-chain PUFA (>= C20) consistently revealed positive effects on somatic growth and fecundity of Daphnia. However, free PUFA are hardly available in natural diets. In general, PUFA are bound to other lipids, especially to phospholipids and triglycerides. Here, we evaluate the potential of free and phospholipid-bound dietary eicosapentaenoic acid (EPA) to support somatic growth and fecundity of Daphnia magna. In a growth experiment, supplementation of a C20 PUFA-deficient diet with free or phospholipid-bound EPA improved somatic growth rates of D. magna equally. However, the increase in fecundity was significantly more pronounced when phospholipid-bound EPA was provided. Free and phospholipid-bound EPA were provided in the same concentrations in our experiment, suggesting that the allocation to reproduction-related processes is affected differently by phospholipid-bound PUFA and free PUFA. Our finding stresses the need to consider the distribution of dietary PUFA in different lipid classes to gain a better understanding of how PUFA influence life history traits of Daphnids in the field.
KW  - Daphnia magna
KW  - food quality
KW  - phospholipids
KW  - polyunsaturated fatty acids
KW  - reproduction
KW  - somatic growth
KW  - trophic interactions
Y1  - 2017
U6  - https://doi.org/10.1093/plankt/fbx037
SN  - 0142-7873
SN  - 1464-3774
VL  - 39
SP  - 843
EP  - 848
PB  - Oxford Univ. Press
CY  - Oxford
ER  -