Flora of Mt. Mantalingahan Range, Palawan Island, Philippines: Basis for Prioritizing Protected Areas

Author(s):  
LITA B. SOPSOP ◽  
GLENN O. SOPSOP

In Palawan Island, Philippines, Mt. Mantalingahan is given high conservation value because its varied habitats harbor different organisms including important wildlife, but little is known about its floristic composition. Using the Variable Transect Method for Rapid Assessment of Tropical Plant Communities, its peripheral forest flora in four surrounding municipalities was surveyed to describe the community structure and assess the priority areas for protection. The mountain’s peripheral forest is rich in diversified flora having at least 351 species in 214 genera and 92 families. Endemism is remarkably high having at least 50 species of which nine are only found in Palawan, higher than the six species found in Puerto Princesa City Underground River National Park. It contains numerous plant species that are rare with narrow habitat range, economically important, and 13 vulnerable, four endangered and five critically endangered. From the criteria in prioritizing areas for protection, Rizal municipality ranked first, followed by Bataraza, Sofrono Española, and Brooke’s Point municipalities. Results from rapid floral assessment demonstrate that Mt. Mantalingahan Range is one of the most important sites in Palawan Corridor for biodiversity conservation. The best and strictest measures should be applied to prevent any degradation of such a rich genetic resource. Keywords - Plant Ecology, flora, threatened species, ecological design, Palawan, Philippines

PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0119166 ◽  
Author(s):  
Marcelo Freire Moro ◽  
Igor Aurélio Silva ◽  
Francisca Soares de Araújo ◽  
Eimear Nic Lughadha ◽  
Thomas R. Meagher ◽  
...  

Biologia ◽  
2009 ◽  
Vol 64 (2) ◽  
Author(s):  
Gyula Pinke ◽  
Robert Pál

AbstractThe stubble-field weed community, dominated by Stachys annua, was generally distributed in Hungary until the 1950s on mid-heavy and heavy, base-rich soils. Stachys annua is an excellent nectar-producer, and from the nectar collected in its habitats popular stubble-honey was produced. This vegetation type has suffered significant decline, mainly due to the early ploughing of stubbles associated with the intensification of agriculture. In the present study, the floristic composition of this community is assessed based on 213 phytosociological records, and its distribution in the past ten years in western Hungary is mapped. Sixty-five percent of the species are of Eurasian, European and Mediterranean elements, and the largest proportion of the species are spring-germinating summer annuals. The proportion of insect-pollinated plant species is approximately 70%, and the species composition also offers significant seed food sources for farmland birds, e.g. Coturnix coturnix and Perdix perdix. Therefore this community should deserve a high conservation priority for biodiversity. The factors that offer the greatest threats to the continuing existence of this community type are intensive agricultural management and the increasing spread of Ambrosia artemisiifolia.


1972 ◽  
Vol 79 (4) ◽  
pp. 284-294 ◽  
Author(s):  
Allen M. Young

A knowledge of life cycle and natural history are often important prerequisites to studies of population biology in butterflies. Although studies on the systematics and broad distribution patterns of that familiar New World Tropical group, the Ithomiinae, have been conducted (Seitz, 194; Fox, 1956; Fox, 1968), a lot remains to be known about the biology of many species in Central America. This is surprising in light of the considerable interest in these butterflies as members of mimicry complexes. In this spirit, this paper summarizes life cycle and natural history data on a clear wing ithoreiine Hymenitis nero (Hewitson) (Nymphalidae: Ithomiinae) in Costa Rica. Similar studies of several other sympatric ithomiines have either been completed (Young, in prep.) or begun, as a preliminary step towards understanding the local patterns of diversity of this family in selected tropical plant communities.


2020 ◽  
Author(s):  
Kflay Gebrehiwot ◽  
Sebsebe Demissew

AbstractThe objective of this paper was to systematically analyze the trend of plant ecological research in Ethiopia. The inclusion and exclusion of the articles for analysis were performed using Reporting Standards for Systematic Evidence Syntheses (ROSES) flow diagram developed for systematic review/meta-analysis. The number of articles published, authors, and collaboration has increased dramatically since the 1960s. Most of the research largely focused on the Dry evergreen Afromontane Forest and grassland complex (DAF) and Moist evergreen Afromontane Forest (MAF) vegetation types, comprising of about 52.6%. Of the remaining vegetation types, the woodlands (14.3%) i.e. Acacia-Commiphora woodland and bushland proper (ACW), and Combretum-Terminalia woodland and wooded grassland (CTW), desert and semi-desert scrubland (DSS) (2.3%), and the Afroalpine (AA) and Ericaceous Belt (EB) (1.5%) received little attention. A descriptive study on plant community ecology revolving on floristic composition and community structure is the dominant research theme, which revealed a narrow theme in contrast to the global trend. Other plant ecological studies such as reproductive and dispersal ecology of invasive plant species, and pollination ecology seems largely a neglected topic by the academia. Furthermore, the recommendations forwarded are not result-based. As a future direction, the Ethiopian government should develop a project database both for completed and ongoing projects.


Biotemas ◽  
2021 ◽  
Vol 34 (1) ◽  
Author(s):  
Jefferson Rodrigues Maciel ◽  
Yuri de Souza Vieira Couceiro

Local extinction of native Atlantic Forest flora species occurs mainly due to habitat fragmentation. Reforestation and natural regeneration can mitigate these factors. The present study attempts to understand whether floristic composition and dispersal processes are being reestablished in an area of lowland Atlantic Forest, eight years after its reforestation. The study area was an old pasture set between two urban fragments in the city of Recife that was reforested in 2011. Melastomataceae species were collected in this area and the morphology of their fruits was compared with the species of the family recorded in the adjacent fragments. Miconia prasina, M. albicans, M. affinis, Clidemia hirta, and C. capitellata have been found in the reforested area. Although there are species with larger fruits in the adjacent fragments, there was no statistically significant difference between the means of the two areas. The fruit morphology indicates that the species found in the area are dispersed by birds and small mammals. It is possible to conclude that the reforested area already presents the expected ecological processes for a corridor between two fragments. Thus, the two adjacent areas serve as vectors for the colonization of native Atlantic Forest species in the reforested area.


Koedoe ◽  
2010 ◽  
Vol 52 (1) ◽  
Author(s):  
Mahlomola E. Daemane ◽  
Sarel S. Cilliers ◽  
Hugo Bezuidenhout

The proposed Highveld National Park (HNP) is an area of high conservation value in South Africa, covering approximately 0.03% of the endangered Grassland Biome. The park is situated immediately adjacent to the town of Potchefstroom in the North-West Province. The objective of this study was to identify, classify, describe and map the plant communities in this park. Vegetation sampling was done by means of the Braun-Blanquet method and a total of 88 stratified random relevés were sampled. A numerical classification technique (TWINSPAN) was used and the results were refined by Braun-Blanquet procedures. The final results of the classification procedure were presented in the form of phytosociological tables and, thereafter, nine plant communities were described and mapped. A detrended correspondence analysis confirmed the presence of three structural vegetation units, namely woodland, shrubland and grassland. Differences in floristic composition in the three vegetation units were found to be influenced by environmental factors, such as surface rockiness and altitude. Incidences of harvesting trees for fuel, uncontrolled fires and overgrazing were found to have a significant effect on floristic and structural composition in the HNP. The ecological interpretation derived from this study can therefore be used as a tool for environmental planning and management of this grassland area.Conservation implications: Grasslands are amongst the most threatened and least conserved vegetation biomes in South Africa, with less than 1.3% currently being conserved. The HNP has significant value for biodiversity conservation and the protection of this area will contribute to the preservation of the highly threatened Highveld vegetation types. 


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