The composition of Rhododendron species forest has changed to Lyonia ovalifolia (Angeri) forest.
1. Background
On July 3, 2024, we visited Maiwakhola Village, municipality 3, Falate, Milke region (GPS coordinates 27.322245,87.50406) in Nepal's Taplejung district. Our goal was to monitor the plantation area. During the drive, I observed the crown pattern of various species and discovered that near the settlement, the light shining colour of the species crown is distributed on the higher area. I consulted with few locals about the observation and noticed that the rhododendron species composition has shifted to Lyonia ovalifolia (Angeri).
The composition of rhododendron forest has changed to Lyonia ovalifolia (Angeri) forest is oberserved in the Falate milke area of Taplejung,Nepal, The all households of this are depended in fuelwood enery for cooking, husbandry and thier daily woks. The composition started near to settlement area so the changed is might be due to over use of fuel wood of rhododendron speceis, or anyother reasons.
2. What happens when the composition shifts.
2.1. Loss of Biodiversity:
- Rhododendron Diversity: Rhododendron is a diverse genus with many species occupying different ecological niches. Their disappearance indicates a loss of this variety, potentially impacting pollinators and herbivores specifically adapted to these species.
- Associated Species: Plants and animals that rely on Rhododendrons for food, shelter, or breeding could be affected. This could disrupt the food chain and lead to population declines of dependent species.
2.2.Changes in Ecosystem Function:
- Soil Composition: Different plant species have varying effects on soil nutrients and acidity. Lyonia ovalifolia might alter soil composition compared to Rhododendrons, potentially impacting other plants in the ecosystem.
- Nutrient Cycling: The decomposition rate and nutrient cycling patterns might change due to the different leaf litter characteristics of Lyonia ovalifolia compared to Rhododendrons.
- Water Retention: The canopy structure and water needs of the two species differ. This could affect water infiltration, storage, and overall water flow in the ecosystem.
2.3. Loss of Resources:
- Food and Medicine: Local communities might have relied on specific Rhododendron species for edible flowers, fruits, or medicinal properties. The disappearance of these species could lead to food scarcity or a lack of traditional medicines.
- Fuelwood and Construction Materials: Some Rhododendron species might have been used for firewood or construction materials. The new dominant species, Lyonia ovalifolia, might not be suitable for these purposes, forcing people to find alternative sources further away.
- Income Generation: Rhododendrons might have played a role in income generation through the collection and sale of flowers, leaves, or other products. The loss of these resources could lead to economic hardship.
- Livestock Grazing: The change in plant composition might affect the availability and quality of forage for livestock. This could lead to reduced milk and meat production, impacting food security and income generation.
3. conclusion.
The shift from a Rhododendron forest to a Lyonia ovalifolia forest raises concerns for the local communities and the ecosystem's biodiversity. While the TMJ project's conservation efforts for Rhododendron species are crucial, the proposed conservation area designation for this area becomes even more critical.
Post No :3