<abstract xmlns="http://www.w3.org/1999/xhtml">This paper presents an assessment of changes in <italic>Avicennia marina</italic> population along the Egyptian coasts of the Red Sea. A retrospective analysis of the mangrove cover and distribution was carried out. The populations in Sharm El-Bahary and wadi El-Gimal lack at least one or more volume class stages, while all volume classes are represented in the last two populations occurring in wadi Al-Qu’lan and Sharm El-Madfa’a. The relationships between the individual diameter and canopy volume of <italic>A. marina</italic> population are simply linear. Strong correlation coefficients are obtained (<italic>r</italic>2=0.92) for the population of Sharm El-Bahry and the weak correlation coefficients are obtained (<italic>r</italic>2=0.63) for the population of wadi El-Gimal. On the other hand, the relationships between the individual heights and canopy volume of <italic>A. marina</italic> population are simply linear. Strong correlation coefficients are obtained (<italic>r</italic>2=0.72) for the population of Sharm El-Bahry and the weak correlation coefficients are obtained (<italic>r</italic>2=0.46) for the population of wadi El-Gimal. All growth performance of <italic>A. marina</italic> species differ significantly at the four localities except the circumference. The comparison of soil characteristics <italic>A. marina</italic> populations in the four study localities showed significant variations in all variables except the silt content and SO4.</abstract>

This paper presents an assessment of changes in Avicennia marina population along the Egyptian coasts of the Red Sea. A retrospective analysis of the mangrove cover and distribution was carried out. The populations in Sharm El-Bahary and wadi El-Gimal lack at least one or more volume class stages, while all volume classes are represented in the last two populations occurring in wadi Al-Qu’lan and Sharm El-Madfa’a. The relationships between the individual diameter and canopy volume of A. marina population are simply linear. Strong correlation coefficients are obtained (r2=0.92) for the population of Sharm El-Bahry and the weak correlation coefficients are obtained (r2=0.63) for the population of wadi El-Gimal. On the other hand, the relationships between the individual heights and canopy volume of A. marina population are simply linear. Strong correlation coefficients are obtained (r2=0.72) for the population of Sharm El-Bahry and the weak correlation coefficients are obtained (r2=0.46) for the population of wadi El-Gimal. All growth performance of A. marina species differ significantly at the four localities except the circumference. The comparison of soil characteristics A. marina populations in the four study localities showed significant variations in all variables except the silt content and SO4.

Distribution and Population Structure of <italic>Avicennia marina</italic> (Forssk.) Vierh in Relation to the Environmental Gradient Along the Red Sea Coast of Egypt

Plant Ecology and Ranges Department, Desert Research Center

Ekológia (Bratislava)

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Distribution and Population Structure of  (Forssk.) Vierh in Relation to the Environmental Gradient Along the Red Sea Coast of Egypt

This paper presents an assessment of changes in Avicennia marina population along the Egyptian coasts of the Red Sea. A retrospective analysis of the mangrove...

Distribution and Population Structure of Avicennia marina (Forssk.) Vierh in Relation to the Environmental Gradient Along the Red Sea Coast of Egypt

Published Online: Apr 18, 2021

Page range: 48 - 53

Received: Aug 22, 2020

Accepted: Nov 04, 2020

DOI: https://doi.org/10.2478/eko-2021-0006

Keywords
mangrove, distribution, Red Sea, population structure

© 2021 Ramadan A. Shawky, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Distribution and Population Structure of Avicennia marina (Forssk.) Vierh in Relation to the Environmental Gradient Along the Red Sea Coast of Egypt

Published Online: Apr 18, 2021

Page range: 48 - 53

Received: Aug 22, 2020

Accepted: Nov 04, 2020

DOI: https://doi.org/10.2478/eko-2021-0006

Keywordsmangrove, distribution, Red Sea, population structure

© 2021 Ramadan A. Shawky, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
mangrove, distribution, Red Sea, population structure