Ms. Natalie Breidenbach Bidang BIOLOGI

77 Sekretariat Perizinan Penelitian Asing Kementerian Riset dan Teknologi DIREKTORI PENELITIAN ASING DI INDONESIA 2013 The leave samples are about a size of 2g and the bark about 1 cm2. Families can not be forseen because the dominant species on each plot will be sampled.

46.1 Ms. Natalie Breidenbach

Warga Negara : Jerman Jabatan : Researcher Institusi : University of Göttingen No. SIP : 24EXTSIPFRPSMIII2013 47. Taxonomic, Phylogenetic and Biogeographical Diversity of Vascular Plants in Rainforest Transformation systems on Sumatra Indonesia Tujuan Penelitian : Mengkaji dampak perubahan penggunaan lahan terhadap keanekaragaman tumbuhan tropik Bidang Penelitian : Biologi Daerah Penelitian : Jambi TN Bukit Dua Belas dan Hutan Harapan Lama Penelitian : 12 dua belas bulan mulai 17 Juni 2013 Mitra Kerja : IPB - Dr. Sri Sudarmiyati Tjitrosudirdjo dan Universitas Jambi - Drs. Astrizal Paiman, M.P Abstrak Efects of land-use on tropical plant diversity to date have been mainly studied based on species occurrences and abundances. Other aspects of biological diversity such as functional diversity FD or phylogenetic diversity PD have been only rarely integrated but see Mayield et al. 2006. On the other hand, there is clear evidence that crucial ecosystem functions are determined rather by the number of functional traits in a community than by its number of species Hooper et al. 2005. For instance, grassland experiments have shown that the number of functional groups better predicts productivity than the number of species Tilman et al. 1997. Furthermore, functional redundancy in plant communities leads to greater ecosystem resilience Laliberte et al. 2010. Recent approaches in functional plant ecology, the increasing availability of phylogenetic data, novel 78 Sekretariat Perizinan Penelitian Asing Kementerian Riset dan Teknologi DIREKTORI PENELITIAN ASING DI INDONESIA 2013 bioinformatic tools, and advances in statistical modelling opens new avenues for an expanded perspective on how functional and phylogenetic diversity and the biogeographic patterns of species change in rainforest transformation systems. The integration of ecological traits with data on phylogenetic community structure can ofer new insights on how communities are structured and which processes e.g. niche conservatism, environmental iltering determine changes in community composition and diversity, e.g. along environmental or land-use gradients Webb et al. 2002; Kembel Hubbell 2006. Often phylogenetic distance is used as a proxy for functional dissimilarity, but the validity of this assumption has rarely been tested. More importantly, taxonomic diversity TD, PD, FD are not necessarily closely and linearly correlated. For instance, the loss of species from functionally highly redundant communities will result in only limited losses of FD compared to communities with low functional Taxonomic, phylogenetic, functional, and biogeographical diversity of vascular plants B06 redundancy Flynn et al. 2009; compare Fig. 2.This SP aims at providing an integrative perspective on how PD and FD change along gradients of TD and across diferent transformation systems. The overarching goal of this SP is to quantify the efects of rainforest transformation on plant diversity and ecosystem functioning by 1 integrating diferent metrics of biodiversity: taxonomic, phylogenetic, functional, and biogeographical; 2 investigating how plant diversity is partitioned at diferent spatial scales alpha, beta, gamma. ini merupakan lanjutan dari tahun 2012.

47.1 Dr. Katja Rembold