Horizontal distribution pattern of the syllid fauna (Annelida: Polychaeta) in the fringing reef lagoon of Anse Forbans (Seychelles, Mahé) and redescription of the abundant Streptosyllis aequiseta

2003 ◽  
pp. 17-26
Author(s):  
Markus Böggemann ◽  
René Hessling ◽  
Wilfried Westheide
Coral Reefs ◽  
2007 ◽  
Vol 26 (1) ◽  
pp. 149-163 ◽  
Author(s):  
C. Coronado ◽  
J. Candela ◽  
R. Iglesias-Prieto ◽  
J. Sheinbaum ◽  
M. López ◽  
...  

2014 ◽  
Vol 517 ◽  
pp. 508-520 ◽  
Author(s):  
Kevin M. Befus ◽  
M. Bayani Cardenas ◽  
Douglas R. Tait ◽  
Dirk V. Erler

2015 ◽  
Vol 120 (4) ◽  
pp. 2736-2750 ◽  
Author(s):  
Sabrina M. Parra ◽  
Arnoldo Valle-Levinson ◽  
Ismael Mariño-Tapia ◽  
Cecilia Enriquez

2020 ◽  
pp. 1-4
Author(s):  
Sanjeev Luintel

The flowering plant diversity in Nepal is very rich with wide range of distribution due to overlap of different phytogeographical regions. In this study, we accounted the distribution pattern of genus Taraxacum belonging to the family Asteraceae. We included 14 species of Nepalese species which have wide range of altitudinal distribution i.e. from tropical region of Terai (720 m asl) to high Himalayas (4850 m asl) and east to west horizontal distribution with most of the species dominant in the central region of Nepal. Most of the species disappear or die during the dry winter season and their flowering starts by the starting of the Monsoon. These species within the genus have extended flowering period which is not strictly constrained by the monsoon. Taraxacum species richness increases along the elevation gradient from west to east across Nepal, in relation to the increased intensity of the monsoon.


2017 ◽  
Author(s):  
Lili Li ◽  
Chengzhang Zhao ◽  
Tingjun Zhang ◽  
dawei wang ◽  
yuxing li ◽  
...  

Species interactions are often context-dependent and complex, such as the grasshopper community and phytoecommunity. The adoption of grasshopper abundance and vegetation community was determined by topographical heterogeneity. However, it remains vague about how vegetation community, such as coverage abundance and height, influence the spatial distribution pattern of grasshopper abundance at the altitude gradient. Using Geostatistical methods in natural grassland of the upper reaches of Heihe River to quantitatively study the relationship of spatial correlation. A 3 years investigation was shown that 3149 grasshoppers were collected, belonging to 3 families, 10 genera, and 13 species. The semivariable function of grasshopper abundance and vegetation community followed a nonlinear model. Meanwhile, horizontal distribution of two communities was a clear flaky and plaque distribution pattern, especially at the altitude gradient. The abundance of grasshoppers is opposite to the height and coverage of vegetation and the overall followability of coverage, while the local following is consistent. Such as grasshopper abundance, the above 2750m sample with the opposite trend, the following areas are consistent. Finally, grasshoppers have the different choice on different vegetation characteristics in different directions, formed of specific trend characteristics; and the spatial distribution trend is different even with the same community indicators, formed of embedded striped patches structure.


2021 ◽  
Author(s):  
Lili Li ◽  
chengzhang zhao ◽  
xiawei zhao ◽  
dawei wang ◽  
yu li

Abstract Species interactions are often context-dependent and complex, such as the grasshopper community and phytoecommunity. The adaption of grasshopper abundance and plant community were determined by topographical heterogeneity. However, it remains vague about how vegetation community, such as coverage, abundance and height, influence the spatial distribution pattern of grasshopper abundance at the altitude gradient. The geostatistical methods were used in natural grassland of the upper reaches of Heihe River to quantify the relationship of spatial correlation. A 5-years investigation shown that 3149 of grasshoppers was collected,belonging to 3 families, 10 genera, and 13 species. The semivariable function of grasshopper abundance and vegetation community followed a nonlinear model. Meanwhile, horizontal distribution of two communities was a clear flaky and plaque distribution pattern, especially at the altitude gradient. The abundance of grasshoppers is opposite to the height and coverage of vegetation and the overall follow ability of coverage, while the local following is consistent. Such as grasshopper abundance, the above 2750m sample with the opposite trend, the following areas were consistent. The grasshoppers exhibited the varieties on vegetation characters among all directions. On the different habits, the spatial distribution formed uniform trends; meanwhile, on the same, the trends diversified with altitude gradient, formed embedded striped patches structure.


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