Functional and ecosystem service differences between tree species: implications for tree species replacement

Trees ◽  
2020 ◽  
Author(s):  
R. J. Mitchell ◽  
R. L. Hewison ◽  
R. K. Haghi ◽  
A. H. J. Robertson ◽  
A. M. Main ◽  
...  
Keyword(s):  
Ecosystem Service ◽  
Tree Species ◽  
Species Replacement

scholarly journals Assessing the Role of Gender in Identifying and Prioritizing Local Ecosystem Services of Trees in Croplands

2019 ◽  
pp. 1-9
Author(s):  
Tuemay Tassew ◽  
Gebru Eyasu
Keyword(s):  
Ecosystem Services ◽  
Resource Management ◽  
Ecosystem Service ◽  
Tree Species ◽  
T Test ◽  
Service Access ◽  
Men And Women ◽  
Gender Biases ◽  
Local Ecosystem

The overall objective of the study was to assess and compare the role of gender in identifying and prioritizing the ecosystem services of trees in croplands. The research was carried out in croplands and species inventory in each cropland was conducted during field observations of every tree species by interviewing the local farmers and/or villagers. A questionnaire containing both close-ended and open-ended questions were designed to collect information about the role of gender in identifying and prioritizing the ecosystem services supplied by each tree species in croplands based on local communities. A total of 15 ecosystem services were identified from trees in croplands by both men and women. The number and type of ecosystem services identified by men and women were different. The differences could be due to different access and benefits from ecosystem services. As a result, their perception and knowledge of ecosystem services could also vary. After identification of each ecosystem service, a paired two-tail t-test was conducted whether the list of individual score values given to each local ecosystem services identified by both men and women were the same or not. The statistical result of the paired t-test showed that the score values of all the ecosystem services that are only identified by both men and women were not statistically significant. This can imply that the commonly identified ecosystem services have more or less similar importance to men and women. The findings in this research demonstrate that ecosystem services identification might cause gender biases on women due to neglected control and access to the ecosystem services of trees in croplands which in turn could have an impact on tree resource management, conservation, and development interventions. Therefore, integrating women in ecosystem service access and control can help build various experiences of gender and balanced institutions which can aid collective and effective tree and forest resource management and to maximize the benefits for all beneficiaries of the ecosystem services.

scholarly journals Impact of tree species replacement on carbon stocks in a Mediterranean mountain area, NE Portugal

2019 ◽  
Vol 439 ◽  
pp. 181-188
Author(s):  
Felícia Fonseca ◽  
Tomás de Figueiredo ◽  
Ângela Vilela ◽  
Renata Santos ◽  
Ana Luiza de Carvalho ◽  
...  
Keyword(s):  
Tree Species ◽  
Carbon Stocks ◽  
Species Replacement ◽  
Mountain Area

scholarly journals Canopy Gaps Improve Landscape Aesthetic Service by Promoting Autumn Colour-Leaved Tree Species Diversity and Colour-Leaved Patch Properties in Subalpine Forests of Southwestern China

2020 ◽  
Author(s):  
Qiaoyu Li ◽  
Yu Du ◽  
Yuan Liu ◽  
Juan Chen ◽  
Xiaojing Zhang ◽  
...  
Keyword(s):  
Species Diversity ◽  
Ecosystem Service ◽  
Tree Species ◽  
Canopy Gaps ◽  
Southwestern China ◽  
Tree Species Diversity ◽  
Patch Area ◽  
Subalpine Forests ◽  
Gap Characteristics ◽  
Forest Stability

Abstract BackgroundLandscape aesthetic service is a crucial ecosystem service in subalpine forests of the mountain and ravine regions of the Tibetan Plateau; it can provide important ecological and economic value, improving the livelihood of the local people. Canopy gap is recognized as the key mechanism in the maintenance of species diversity and forest stability and is known to further affect ecosystem service functioning. However, the mechanisms and interactions of forest stability maintained by gap formations and forest aesthetic service functioning via gap dynamics are not fully understood. We used very high-resolution images to quantify gap characteristics and examined the effects of canopy gaps on autumn colour-leaved tree species diversity, colour-leaved patch structure characteristics, and landscape aesthetic service in 21 subalpine autumn colour-leaved forest plots in southwestern China. We then used path analysis to determine the relationships between these factors.ResultsThe number of gaps and total gap area were the key gap characteristics affecting landscape aesthetic service; particularly, medium canopy gaps (51–100 m2) played a more important role. The path model showed that increasing the total gap area along with the number of medium canopy gaps had direct positive effects on autumn colour-leaved tree species diversity, colour-leaved patch diversity, and total colour-leaved patch area, thus improving the landscape aesthetic service.ConclusionCanopy gaps indirectly improve landscape aesthetic service by significantly affecting colour-leaved species diversity, colour-leaved patch diversity, and colour-leaved patch area. Our results suggest that forest managers may be able to manipulate the numbers and proportion of medium canopy gaps to protect and preserve autumn colour-leaved tree species diversity and colour-leaved landscapes, promoting the landscape aesthetic service of subalpine autumn colour-leaved forests and, in turn, ensuring the coordinated development of economic, social, and ecological benefits for the underdeveloped rural montane areas of southwestern China.

Purification of plasma membranes from leaves of conifer and deciduous tree species by phase partitioning and free-flow electrophoresis

1995 ◽  
Vol 95 (3) ◽  
pp. 399-408 ◽  
Author(s):  
Elena Toll ◽  
Federico J. Castillo ◽  
Pierre Crespi ◽  
Michele Crevecoeur ◽  
Hubert Greppin
Keyword(s):  
Tree Species ◽  
Plasma Membranes ◽  
Free Flow ◽  
Deciduous Tree ◽  
Phase Partitioning

Biscogniauxia (Hypoxylon) Canker or Dieback in Trees

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Claudia Paez ◽  
Jason A. Smith
Keyword(s):  
Water Stress ◽  
Tree Species ◽  
Soil Compaction ◽  
Urban Areas ◽  
Root Disease ◽  
Poor Health ◽  
Green Spaces ◽  
Opportunistic Pathogens ◽  
Wide Range ◽  
Quercus Spp

Biscogniauxia canker or dieback (formerly called Hypoxylon canker or dieback) is a common contributor to poor health and decay in a wide range of tree species (Balbalian & Henn 2014). This disease is caused by several species of fungi in the genus Biscogniauxia (formerly Hypoxylon). B. atropunctata or B. mediterranea are usually the species found on Quercus spp. and other hosts in Florida, affecting trees growing in many different habitats, such as forests, parks, green spaces and urban areas (McBride & Appel, 2009).  Typically, species of Biscogniauxia are opportunistic pathogens that do not affect healthy and vigorous trees; some species are more virulent than others. However, once they infect trees under stress (water stress, root disease, soil compaction, construction damage etc.) they can quickly colonize the host. Once a tree is infected and fruiting structures of the fungus are evident, the tree is not likely to survive especially if the infection is in the tree's trunk (Anderson et al., 1995).

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