4 Works

Data from: Disassortative mating prevails in style-dimorphic Narcissus papyraceus despite low reciprocity and compatibility of morphs

Violeta Irene Simón-Porcar, Thomas R. Meagher & Juan Arroyo
Evolution to reduce inbreeding can favor disassortative (inter-morph) over assortative (intra-morph) mating in hermaphroditic sexually polymorphic plant species. Heterostyly enhances disassortative pollination through reciprocal placement of stigmas and anthers of morphs and appropriate pollinators. Stylar dimorphism in which there is not reciprocal anther placement may compromise disassortative mating, particularly when there is not intra-morph incompatibility. Variable rates of disassortative mating along with differential female fecundity or siring success among floral morphs could lead to variation...

Data from: The building of a biodiversity hotspot across a land-bridge in the Mediterranean

Rafael Molina-Venegas, Abelardo Aparicio, Sébastien Lavergne & Juan Arroyo
Many of the macroevolutionary processes that have shaped present-day phylogenetic patterns were caused by geological events such as plate tectonics and temporary land-bridges. The study of spatial patterns of phylogenetic diversity can provide insights into these past events. Here we focus on a western Mediterranean biodiversity hotspot located in the southern Iberian Peninsula and northwest Africa, two regions that are separated by the Strait of Gibraltar. We explore the spatial structure of the phylogenetic relationships...

Data from: Range-wide population genetics and variation in morph ratio in style-dimorphic Narcissus papyraceus (Amaryllidaceae)

Violeta I. Simón-Porcar, F. Xavier Picó & Juan Arroyo
Premise of the study: Theoretical models state that natural selection and mating patterns account for floral morph ratio in style- polymorphic plants. However, the demographic history of populations can also influence variation in morph ratios. If so, we hypothesize an association between the morph ratios and the genetic structure across populations. Methods: We used nuclear microsatellites to assess genetic variation and structure in populations of Narcissus papyraceus, a style-dimorphic plant whose floral morph ratios (L-morph...

Data from: Extinction debt of a common shrub in a fragmented landscape

Juan P. González-Varo, Rafael G. Albaladejo, Marcelo A. Aizen, Juan Arroyo & Abelardo Aparicio
1. Environmental stochasticity and low demographic rates may cause delayed extinctions of habitat-specialist species that were initially retained within remnant patches after habitat loss and fragmentation. Detecting such extinction debts opens opportunities to counteract future biodiversity loss, yet knowing the underlying causes of population declines is a basic need for targeting specific guidelines for conservation and restoration (e.g. habitat quantity, quality, or connectivity). 2. Here, we examine the extinction debt in the common Mediterranean shrub...

Registration Year

  • 2015
    4

Resource Types

  • Dataset
    4

Affiliations

  • University of Seville
    4
  • French National Centre for Scientific Research
    1
  • Spanish National Research Council
    1
  • University of St Andrews
    1
  • National Scientific and Technical Research Council
    1
  • University of Stirling
    1