The report presents the latest census results for the iconic Haleakalā Silversword (Argyroxiphium sandwicense subsp. macrocephalum), continuing a decades-long monitoring series.
Annual flowering counts and population status, including:
Number of newly recorded blooms in 2011
Information on surviving seedlings from previous years
Rates of plant mortality and survival across permanent monitoring plots
Focus on demographic trends, noting fluctuations related to age structure and environmental stressors.
Scientific Monitoring: A key annual report in an over 40-year dataset of plant demographic records.
Conservation Planning: Supports resource managers and park staff with data for restoration efforts.
Educational Value: Functional case study for ecology, conservation biology, and population dynamics coursework.
Highlights ongoing data collection that supports the long-term protection and understanding of this rare, endemic species .
Confirms vulnerabilities tied to pollination gaps, invasive predators, and changing climate, consistent with previous census findings .
Serves as a vital scientific record informing adaptive management strategies to preserve and recover silversword populations.
