USA: Ala Mahamoe Restoration Project

Overview

Increasing efficacy in water usage and recharge at Ala Mahamoe, O’ahu, through native plant restoration and the establishment of Hawaiian Cultural Garden. The objectives of the Ala Mahamoe Restoration Projects are three-fold:

  • Control invasive species in the project area to improve the integrity and ecological services of the watershed through increased recharge capacity
  • Provide opportunities for students and community members to be involved in forest stewardship and conservation work through a green infrastructure project; and
  • Perpetuate native Hawaiian cultural practices through the establishment of a Hawaiian cultural garden.

Quick Facts

Project Location:
Ko'olau Mountains , 21.45, -157.89999999999998

Geographic Region:
Pacific Ocean

Country or Territory:
United States of America

Biome:
Tropical Forest

Ecosystem:
Montane Grasslands & Shrublands

Project Lead:
Ko'olau Mountains Watershed Partnership

Organization Type:
NGO / Nonprofit Organization

Project Partners:
State of Hawai'i Division of Land and Natural Resources (DLNR) Honolulu Board of Water Supply (HBWS) Pacific Cooperative Studies Unit

Location

Project Stage:
Implementation

Start Date:
2018-01

End Date:
2021-01

Primary Causes of Degradation

Agriculture & Livestock, Fire & Weather Events, Fragmentation, Invasive Species (native or non-native pests, pathogens or plants), Urbanization, Transportation & Industry

Degradation Description

The forests in the mauka regions of the Central Ko’olau Mountains comprise some of the most important watersheds on the island of O’ahu. These watersheds rely on the presence of native plant species to efficiently capture and hold onto precipitation to consistently replenish underground aquifers with fresh water. This is true in both wet and dryland forest ecosystems, where traits of native plant species have evolved to suit their climatic conditions and efficiently retain the water. The forest in the mid to lower mauka sections have been degraded by agricultural practices and urban development. This projects seeks to restore 5.1 acres. This area is currently dominated by habitat-modifying weeds. It is suspected that this area was used for cattle ranching due to its flat ground. Our goal is to restore this area to a more native-dominated system to increase recharge capacity in this high priority watershed area.

Defining the Reference Ecosystem

The reference ecosystem is based on diverse sources of information (e.g. multiple extant reference sites, field indicators, historical records, predictive data).

Project Goals

  • Control invasive species in the project area to improve the integrity and ecological services of the watershed through increased recharge capacity
  • Provide opportunities for students and community members to be involved in forest stewardship and conservation work through green infrastructure project; and
  • Perpetuate native Hawaiian cultural practices through the establishment of a Hawaiian cultural garden.

Monitoring

The project does not have a monitoring plan.

Activities were undertaken to address any socio-economic aspects of the project:
2551 waimano home road #202

Ecological Outcomes Achieved

Socio-Economic & Community Outcomes Achieved

Primary Contact

Name:
alison crowley

Affiliation:
Field Crew Supervisor

City:
pearl city

State:
Hawaii

Organizational Contact