Abstract Detail

Conservation Biology

Reatini, Bryan [1], Valdebenito, Hugo [2].

Is reproductive interference contributing to the local extinction of the endemic Galápagos tree species Psidium galapageium?

Introduced species can have both indirect and direct impacts on native species. One potential direct impact is reproductive interference (RI), whereby heterospecific mating reduces the fitness of at least one of the species involved. Theoretical studies show that RI can lead to rapid extinction, and empirical studies suggest that RI is common between native and introduced species. Here, we test the hypothesis that an invasive species of guava (Psidium guajava) is contributing to the local extirpation of the Galápagos endemic tree species guayabillo (Psidium galapageium) through RI.

1 - University of North Carolina, Biology, Chapel Hill, North Carolina, 27599-3280, United States
2 - Universidad San Francisco de Quito, Colegio de Ciencias Biológicas y Ambientales/Herbarium QUSF, Calle Diego de Robles y Vía Interoceanica, Cumbayá, Quito, Pichincha, 170901, Ecuador

Keywords:
reproductive interference
Extinction
hybridization.

Presentation Type: Oral Paper
Session: CB3, Conservation Biology 3
Location: Virtual/Virtual
Date: Friday, July 31st, 2020
Time: 12:45 PM
Number: CB3002
Abstract ID:555
Candidate for Awards:None