02440nas a2200313   4500008004100000022001400041245009900055210006900154260001200223490001300235520142800248653001401676653001301690653003101703653002601734653003001760653002701790653002301817653002401840100003201864700002001896700002101916700003301937700002401970700002701994700001802021700001602039856007102055       2020                        eng d  a1755-087400aSpatiotemporal effects of Hurricane Ivan on an endemic epiphytic orchid: 10 years of follow-up0 aSpatiotemporal effects of Hurricane Ivan on an endemic epiphytic  c10/20190 v13, 20203 aBackground: Hurricanes have a strong influence on the ecological dynamics and structure of tropical forests. Orchid populations are especially vulnerable to these perturbations due to their canopy exposure and lack of underground storage organs and seed banks.

Aims: We evaluated the effects of Hurricane Ivan on the population of the endemic epiphytic orchid Encyclia bocourtii to propose a management strategy.

Methods: Using a pre- and post-hurricane dataset (2003–2013), we assessed the population asymptotic and transient dynamics. We also identified the individual size-stages that maximise population inertia and E. bocourtii’s spatial arrangement relative to phorophytes and other epiphytes.

Results: Hurricane Ivan severely affected the survival and growth of individuals of E. bocourtii, and caused an immediate decline of the population growth rate from λ = 1.05 to λ = 0.32, which was buffered by a population reactivity of ρ1 = 1.42. Our stochastic model predicted an annual population decrease of 14%. We found an aggregated spatial pattern between E. bocourtii and its host trees, and a random pattern relative to other epiphytes.

Conclusion: Our findings suggest that E. bocourtii is not safe from local extinction. We propose the propagation and reintroduction of reproductive specimens, the relocation of surviving individuals, and the establishment of new plantations of phorophytes.
10aCaribbean10acyclones10aintegral projection models10amanagement strategies10aplant population dynamics10astochastic growth rate10atransfer functions10atransient behaviour1 aOrtiz-Rodríguez, Iván, A.1 aRaventós, Jose1 aMújica, Ernesto1 aGonzález-Hernández, Elaine1 aVega-Peña, Ernesto1 aOrtega-Larrocea, Pilar1 aBonet, Andreu1 aMerow, Cory  uhttps://www.tandfonline.com/doi/full/10.1080/17550874.2019.1673495