Surface pollen distribution patterns in Beibu Gulf and corresponding sediment dynamics environment

Annual pollen deposition (pollen cm−2 yr−1) was sampled for 6 yr in the southern Sierra Nevada, the Owens Valley, and the Inyo Mountains of central California. Spatial pollen distributions were examined for anemophilous plants which are limited to growth sites (1) at high elevations on one or both mountain ranges, (2) on lower mountain slopes, and (3) on the Owens Valley floor, Pollen deposition values for high- and low-elevation plants changed by a factor of 5 to 10 between adjacent sample sites which straddle boundaries of the plant communities in which the source plants grow. Pollen deposition values were high and variable within communities in which the species grew. Pollen deposition beyond source populations was low and uniform despite great differences in distance of sites from pollen sources. The step function that seems to characterize pollen distribution patterns implies that pollen from distant populations may be of little value in interpreting vegetation stability and change reflected by fossil pollen stratigraphy. The physical isolation of pollen embedded in the local mountain-valley wind system from that in the prevailing westerlies may explain part of the spatial distribution of the pollen.

Download Full-text

Assessing pollen distribution patterns and provenance based on palynological investigation on surface sediments from Laizhou Bay, China: an aid to palaeoecological interpretation

Palaeogeography Palaeoclimatology Palaeoecology ◽

10.1016/j.palaeo.2016.06.010 ◽

2016 ◽

Vol 457 ◽

pp. 209-220 ◽

Cited By ~ 7

Author(s):

Shixiong Yang ◽

Jie Li ◽

Limi Mao ◽

Kam-biu Liu ◽

Maosheng Gao ◽

...

Keyword(s):

Surface Sediments ◽

Distribution Patterns ◽

Laizhou Bay ◽

Pollen Distribution

Download Full-text

Comparison of pollen distribution patterns in surface sediments of a Colombian Caribbean mangrove with geomorphology and vegetation

Review of Palaeobotany and Palynology ◽

10.1016/j.revpalbo.2009.04.004 ◽

2009 ◽

Vol 156 (3-4) ◽

pp. 358-375 ◽

Cited By ~ 26

Author(s):

Ligia E. Urrego ◽

Gladys Bernal ◽

Jaime Polanía

Keyword(s):

Surface Sediments ◽

Distribution Patterns ◽

Pollen Distribution

Download Full-text

Surface Pollen Distribution from Alpine Vegetation in Eastern Tibet, China

Scientific Reports ◽

10.1038/s41598-017-00625-7 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 8

Author(s):

Yun Zhang ◽

Zhaochen Kong ◽

Zhenjing Yang ◽

Li Wang ◽

Xiaohong Duan

Keyword(s):

Alpine Vegetation ◽

Surface Pollen ◽

Eastern Tibet ◽

Pollen Distribution

Download Full-text

Hydrodynamics and Sediment Dynamics of Tidal Inlets

10.1029/ln029 ◽

1988 ◽

Keyword(s):

Sediment Dynamics ◽

Tidal Inlets

Download Full-text

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

Akuatik Jurnal Sumberdaya Perairan ◽

10.33019/akuatik.v13i2.1434 ◽

2020 ◽

Vol 13 (2) ◽

pp. 112-121

Author(s):

Sudiyar . ◽

Okto Supratman ◽

Indra Ambalika Syari

Keyword(s):

Negative Impact ◽

Principal Component ◽

Environmental Parameters ◽

Data Retrieval ◽

Distribution Patterns ◽

Random System ◽

System Method ◽

Relationship Of ◽

The Relationship ◽

Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m², The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

Download Full-text