HenningNottebrockPlant and Landscape Ecology, University of Hohenheim

HenningNottebrockassociatedPartyFrankSchurrCo-ownerBaptisteSchmidCo-ownerMatthiasSchleuningCo-ownerKatrinBöhning-GaeseCo-ownerJörnPagelCo-ownerMartinaTreurnichtCustodian/StewardKarenEslerCustodian/Steward2016-09-08We set up 27 study plots (120x120m) in the Fynbos, Western Cape and mapped all Protea shrubs taller than 30cm. On 2157 focal plants of 22 Protea species on all sites (Protea acuminata, P. aurea, P. burchellii, P. coronata, P. compacta, P. cynaroides, P. eximia, P. grandiceps, P. laurifolia, P. lepidocarpodendron, P. longifolia, P. lorifolia, P. magnifica, P. mundii, P. nana, P. neriifolia, P. nitida, P. obtusifolia, P. punctata, P. repens, P. speciosa, P. susannae) we measured the canopy seed bank size. For all individuals we counted the number of matured cones and measured the plant size and on 1755 focal individuals we counted number of cones, fertile seeds per cone, total number of ovules per cone, predation rate and seed mass. We created neighborhood models and investigated spatial effects of resources (seed crops and plant size, respectively) provided by the Protea plants in the study sites on the predation rate and on total number of matured cones. For more details see Nottebrock et al. 2016 Oikos (DOI: 10.1111/oik.03438).community dynamicscompetitionfynbos western capeplant coexistenceplant-animal interactionspredationprotea proteaceaeObtain permission from data set owner(s)Western Cape, South Africa19.100819.5147-33.6286-34.61392011-02-012012-09-01SpeciesProtea acuminataSpeciesProtea aureaSpeciesProtea burchelliiSpeciesProtea coronataSpeciesProtea compactaSpeciesProtea cynaroidesSpeciesProtea eximiaSpeciesProtea grandicepsSpeciesProtea laurifoliaSpeciesProtea lepidocarpodendronSpeciesProtea longifoliaSpeciesProtea lorifoliaSpeciesProtea magnificaSpeciesProtea mundiiSpeciesProtea nanaSpeciesProtea neriifoliaSpeciesProtea nitidaSpeciesProtea obtusifoliaSpeciesProtea punctataSpeciesProtea repensSpeciesProtea speciosaSpeciesProtea susannaeHenningNottebrockPlant and Landscape Ecology, University of Hohenheim

henning@nottebrock.net

We mapped all individuals taller than 30 cm of 22 Protea species on 27 different sites with a highly precise dGPS; in total 49990 Protea individuals. We measured cone number and predation rate of 2157 and 1755 focal individuals in the core zone of 100x100m with a 10m buffer, respectively. Moreover we measured canopy seed bank sizes: we counted the cones, harvested 5 randomly selected cones and cut them open with secetures to count the number of fertile seeds, total number of ovules, seed mass and seed size. Out of this we calculated the potential number of fertile seeds per plant (seed crop). We related these demographic measurements to neighbourhood analyses from individual-based maps. Neighbourhood analyses include different neighbourhood effects. To analyse cone number and predation rate we used conspecific and heterospecific neighbourhood effects, neutral neighbourhood effects (all individuals) and, in addition, these neighbourhood effects indicated by plant size or seed crop, respectively. For more details see Nottebrock et al. 2016 Oikos (DOI: 10.1111/oik.03438).

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