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Publications (6)
El raleo de densidad variable (RDB) es una forma de redireccionar la trayectoria de desarrollo de rodales hacia
una estructura de rodal más heterogénea. En rodales de secuoyas costeras (Sequoia sempervirens) en California, se ha utilizado el RDB para dirigir el desarrollo de rodales jóvenes hacia estructuras de bosques adultos. Los bosques adultos...
Six precommercial thinning treatments and two types of control treatments were established in 9- to 11-year-old, even-aged coast redwood (Sequoia sempervirens (D Don) Endl.) forests in coastal California to study the impact of thinning on stand and individual tree level volume
growth. Species composition was 74% redwood and 23% coast Douglas-fir (P...
Identifying clonal lineages in asexually reproducing plants using microsatellite markers is complicated by the possibility of nonidentical genotypes from the same clonal lineage due to somatic mutations, null alleles, and scoring errors. We developed and tested a clonal identification protocol that is robust to these issues for the asexually reprod...
Tropical forests are important reservoirs of biodiversity, but the processes that maintain this diversity remain poorly understood. The Janzen-Connell hypothesis suggests that specialized natural enemies such as insect herbivores and fungal pathogens maintain high diversity by elevating mortality when plant species occur at high density (negative d...
The coexistence of plant species in species-rich tropical forests can be promoted by specialised enemies acting in a negatively density-dependent manner. While survival of tropical tree seedlings is often negatively density-dependent, the causes have rarely been identified. We tested whether insects and plant pathogens cause density-dependent seedl...
Ecology Letters (2010)
The Janzen-Connell hypothesis is a leading explanation for plant-species diversity in tropical forests. It suggests that specialized natural enemies decrease offspring survival at high densities beneath parents, giving locally rarer species an advantage. This mechanism, in its original form, assumes that density dependence is...
