Ecology and Control of Naturalized Melastomataceae

DeWalt, Saara J.; Denslow, Julie S.; Johnson, Matthew

doi:10.1007/978-3-030-99742-7_34

Cited by 1 publication

(2 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tectococcus is expected to reduce fruiting as well as growth rates of plants in both overstory and understory. While effective control of invasive species via reduction in seed production and dispersal is difficult to attain (e.g., DeWalt et al., 2022), the possibility of Tectococcus impacts on growth rates of both sprouts and shoots holds promise for reduction in population growth rates. While Tectococcus likely had minimal impact on growth rates or recruitment of shoots or sprouts during the time reported here, we expect both to be affected as the agent population spreads from the canopy to the understory.…”

Section: Discussionmentioning

confidence: 99%

Section: Shoots Sproutsmentioning

confidence: 99%

See 1 more Smart Citation

Strawberry guava invasion of a Hawaiian rainforest: Changing population patterns

Denslow,

Johnson,

Chaney

et al. 2024

Biotropica

Self Cite

View full text Add to dashboard Cite

Strawberry guava (waiawī, Psidium cattleyanum Sabine, Myrtaceae) is a small tree invasive on oceanic islands where it may alter forest ecosystem processes and community structure. To better understand the dynamics of its invasion in Hawaiian rainforests in anticipation of the release of a biocontrol agent, we measured growth and abundance of vertical stems ≥0.5 cm DBH for 16 years (2005–2020) in Metrosideros‐Cibotium rainforest on windward Hawai'i Island. Specifically, we compared the growth and abundance of both shoots (originating from seed or from the root mat) and sprouts (originating above ground from established stems) in four replicate study sites. Mean stem density increased from 9562 stems/ha in 2005 to 26,595 stems/ha in 2020, the majority of which were stems <2 cm DBH. Early in the invasion, both density and per capita recruitment of shoots was greater than that of sprouts, but as overall stem density increased, sprout abundance and recruitment came to surpass that of shoots. Relative growth rates among small stems <2 cm DBH declined over time for both shoots and sprouts, but relative growth rates of sprouts were consistently greater than that of shoots after the first 3 years. The capacity of strawberry guava to recruit from both shoots and sprouts facilitates its invasion of rainforest, its persistence in the forest understory, and its response to canopy opening. Strawberry guava thus poses a considerable risk of stand replacement for Hawaiian rainforests. Stand management will require perpetual efforts to control both seed production and sprouting.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Shoots Sproutsmentioning

confidence: 99%