Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region,southwest China

Pencarian berdasarkan :

SEMUA Pengarang Subjek ISBN/ISSN Pencarian Spesifik

Pencarian terakhir:

e-journal

Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region,southwest China

1,2Xin‐Hui LI [et al.] - Nama Orang;

To better understand the elevational pattern of phylogenetic structure shown by alpine taxa and the
underlying causes, we analyzed the phylogenetic structure of each elevational belt of alpine plants in the Hengduan
Mountains Region, measured by net related index (NRI) and net nearest taxon index (NTI). We found both the indices
of phylogenetic diversity indicated that alpine plants tended to show phylogenetic overdispersion at low elevational
belts, implying that the distribution of alpine plants in these belts was mainly determined by interspecific competition. Alpine plants at higher elevational belts tended to phylogenetic clustering indicated by NRI, and NTI revealed phylogenetic clustering at the belts between 4300 m and 5500 m, which presumably suggested environment filtering and rapid speciation. Above 5500 m, NTI indicated that the phylogenetic structure became random again, perhaps due to the low intensity of filtering and the large distances between plants at the top of the scree slopes. We concluded that phylogenetic structure was, indeed, influenced by the environmental filter, interspecies interaction, rapid speciation during the uplift of the Qinghai–Tibet Plateau, and distance between plants.

Key words alpine plants, environment filtering, Hengduan Mountains Region, interspecific competition,phylogenetic structure.

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri: Journal of Systematics and Evolution
No. Panggil: -
Penerbit: : Institute of Botany., 2014
Deskripsi Fisik: Journal of Systematics and Evolution 52 (3): 280–288 (2014)
Bahasa: English
ISBN/ISSN: doi: 10.1111/jse.120
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: BIOLOGI
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas

FULL TEXT:Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region,southwest China

Komentar

Anda harus masuk sebelum memberikan komentar