Simulated impacts of harvesting Chamaedorea linearis and C.pinnatifrons (Arecaceae): Implications for conservation

Palms are important sources of non-timber forest products. One of their most common uses is as ornamentals, which often involves harvesting whole individuals or plant parts from wild populations. Chamaedorea linearis and C. pinnatifrons are still not excessively harvested, but they have substantial ornamental potential, and their populations are decreasing. The use of a wild species can contribute to its conservation if the use is governed by adequate harvest rates. We simulated harvest impacts on the population dynamics of C. linearis and C. pinnatifrons in an Andean montane forest in Parque Natural Chicaque, Colombia, using integral projection models (IPMs) over the period 2019–2021. We projected management scenarios including the harvest of juveniles, as well as leaves and fruits of adults. In our model, the finite growth rate of C. linearis decreased (=0.76–0.91) while in C. pinnatifrons it remained stable ( =0.98–1.04). The simulations of the harvest of juveniles and leaves sugge..., Study sites and species description
Chamaedorea linearis and C. pinnatifrons are 3-10 meters-tall, solitary, dioecious palm species. Both predominantly inhabit the Andean region of Colombia; although their range extends from Mexico to Bolivia in tropical forests (Galeano & Bernal, 2010). Our study focused on these species within the Parque Natural Chicaque, Colombia (4°37'8.06'' N, 74°18'48.38'' W). The park spans an area of 300 ha and is characterized by cloud forests situated at elevations from 2,000 to 2,700 m a.s.l. The temperatures in the area range from 12 to 17°C, and the annual rainfall exhibits a bimodal pattern, with an average of 2000 mm primarily occurring during the months of April-May and October-November (Rivera & Córdoba, 1998). The forest within the park is a mix of secondary growth and features multiple layers, including herbaceous, shrub, and arboreal strata (Rivera & Córdoba, 1998).
Data collection
In 2019, a total of 410 individuals of C. linearis and 61..., , # Simulated impacts of harvesting Chamaedorea linearis and C.pinnatifrons (Arecaceae): Implications for conservation

[https://doi.org/10.5061/dryad.x95x69pvf](https://doi.org/10.5061/dryad.x95x69pvf)

## Description of the data and file structure

The data was collected to determine the vital rates of survival, growth, and fecundity, population dynamics, and harvest simulations of leaves, fruits, and juveniles of *Chamaedorea linearis* and *C. pinnatifrons. *

Vital rates: Survival rates were determined by calculating the proportion of living individuals in each census. Growth rates were estimated by measuring the annual increase in size for both acaulescent and stemmed individuals. For acaulescent individuals the pinnae number in the youngest new leaf in each census was the growth indicator. For stemmed individuals the growth rate was the annual stem growth, which was calculated by multiplying the number of leaves produced by the internode length. To obtain the internode length, the s...