Growth and population structure of the tree species Malouetia tamaquarina (Aubl.) (Apocynaceae) in the central Amazonian floodplain forests and their implication for management

2011 ◽  
Vol 261 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Juliana Menegassi Leoni ◽  
Sinomar Ferreira da Fonseca ◽  
Jochen Schöngart
Keyword(s):  
Population Structure ◽  
Tree Species ◽  
Floodplain Forests

scholarly journals Effects of logging on Virola surinamensis in an Amazonian floodplain forest

2014 ◽  
Vol 15 (3) ◽  
pp. 1-8
Author(s):  
Leandro V. Ferreira ◽  
Denise A. Cunha ◽  
Pia Parolin
Keyword(s):  
Population Structure ◽  
Genetic Resources ◽  
Economic Value ◽  
Timber Species ◽  
Floodplain Forests ◽  
Male And Female ◽  
Conservation Program ◽  
Priority Species ◽  
New Policies ◽  
The Impact

Virola surinamensis is a dioecious timber species of Amazonian floodplain forests. It is threatened by extinction and a priority species in the conservation program of genetic resources with high economic value for Brazil. The present study was aimed to assess the population structure of Virola surinamensis and the impact of logging in the estuary region of Brazilian Amazonia. Our data suggest that altering the dioecious population structure by logging likely creates the imbalance of male and female individuals in the population. New policies are needed to protect Virola trees with a special regard on reproductive matriarch trees.

How far a protected area contributes to conserve habitat species composition and population structure of endangered African tree species (Benin, West Africa)

2013 ◽  
Vol 13 ◽  
pp. 60-68 ◽  
Author(s):  
Thierry D. Houehanou ◽  
Achille E. Assogbadjo ◽  
Romain Glele Kakaï ◽  
Tina Kyndt ◽  
Marcel Houinato ◽  
...  
Keyword(s):  
Population Structure ◽  
West Africa ◽  
Species Composition ◽  
Tree Species ◽  
Protected Area

scholarly journals What We Know and What We Do Not Know about Dragon Trees?

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 236 ◽  
Author(s):  
Petr Maděra ◽  
Alan Forrest ◽  
Pavel Hanáček ◽  
Petr Vahalík ◽  
Roman Gebauer ◽  
...  
Keyword(s):  
Population Structure ◽  
Nature Conservation ◽  
Tree Species ◽  
Current Knowledge ◽  
Final Part ◽  
The World ◽  
Ancient Times ◽  
Characteristic Features ◽  
Tree Group

This article is a broad review focused on dragon trees—one of the most famous groups of trees in the world, well known from ancient times. These tertiary relicts are severely endangered in most of the area where they grow. The characteristic features of the dragon tree group are described and the species belonging to this group are listed. This review gathers together current knowledge regarding the taxonomy, evolution, anatomy and morphology, physiology, and ontogeny of arborescent dragon tree species. Attention is also paid to the composition, harvesting, medicinal, and ethnobotanical use of the resin (dragons’ blood). An evaluation of population structure, distribution, ecology, threats, and nature conservation forms the final part of the review. In the conclusions we recommend further avenues of research that will be needed to effectively protect all dragon tree species.

Regeneration Potential of Floodplain Forests Under the Influence of Nonnative Tree Species: Soil Seed Bank Analysis in Northern Italy

2013 ◽  
Vol 22 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Sandra Skowronek ◽  
André Terwei ◽  
Stefan Zerbe ◽  
Inga Mölder ◽  
Peter Annighöfer ◽  
...  
Keyword(s):  
Seed Bank ◽  
Tree Species ◽  
Soil Seed Bank ◽  
Northern Italy ◽  
Floodplain Forests ◽  
Regeneration Potential

scholarly journals Population structure and spatial pattern of predominant tree species in a pine–oak mosaic mixed forest in the Qinling Mountains, China

2017 ◽  
Vol 12 (1) ◽  
pp. 78-86 ◽  
Author(s):  
Haibin Kang ◽  
Yuying Zheng ◽  
Shutong Liu ◽  
Zongzheng Chai ◽  
Mingjie Chang ◽  
...  
Keyword(s):  
Population Structure ◽  
Spatial Pattern ◽  
Tree Species ◽  
Mixed Forest ◽  
Qinling Mountains

scholarly journals Population Structure and Fruit Production of Carapa guianensis (Andiroba) in Amazonian Floodplain Forests

2017 ◽  
Vol 10 ◽  
pp. 194008291771883 ◽  
Author(s):  
Marina Londres ◽  
Mark Schulze ◽  
Christina L. Staudhammer ◽  
Karen A. Kainer
Keyword(s):  
Population Structure ◽  
Fruit Production ◽  
Floodplain Forests ◽  
Carapa Guianensis

scholarly journals Estructura poblacional y características morfológicas de Abarema glauca (Fabaceae) en el sur de Artemisa, Cuba

2020 ◽  
Vol 14 (1) ◽  
pp. 121-139
Author(s):  
Diana Rodríguez-Cala ◽  
Daniel Tejeda Gómez ◽  
Raúl Jorge Marrero ◽  
Gabriela Ramos-González ◽  
Aylen Mederos Perugorría ◽  
...  
Keyword(s):  
Population Structure ◽  
20Th Century ◽  
Tree Species ◽  
Natural Regeneration ◽  
Population Studies ◽  
Older Age ◽  
The Status

Abarema glaucum is a tree species native to Cuba, Hispaniola and Bahamas. It is considered Vulnerable to extinction in Cuba. The evaluation in Cuba also warns of the need to carry out population studies of the species. This work made the assessment of the status of Abarema glaucum in Artemisa, where the species had been reported before the half of 20th century. For this, the population structure was characterized; amount of accumulated aerial biomass in the region was estimated; and the threats to its conservation in the region were identified. Abarema glaucum has less than 250 individuals, with less than 50 mature individuals, dispersed between three sites in Güira de Melena y Alquízar. The diameter and height vary between 0.03 and 36.31 cm, and 0.05 and 15 m, respectively. The accumulated aerial biomass is estimated between 3 and 4 metric tons among 33 adults. The individuals are aggregated with good natural regeneration, but low recruitment towards older age phases. It is a species dispersed in patches of remaining forest in the region, where the risk of fire, logging, trampling, as well as the degradation of its habitat, constitute threats to its conservation. Logging could delay and even prevent flowering in the adults. The logging and the continuous decline of the quality of the habitat are putting the sustainability of the species in the area in danger.

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