News News

Downsized mutualisms: Consequences of seed dispersers' body-size reduction for early plant recruitment

Human-driven body-size reduction of frugivorous vertebrates may entail the loss of seed dispersal functions, impairing plant regeneration. Here, the consequences of body-size reduction of Giant Canarian lizards (g. Gallotia, Lacertidae) on the recruitment of Neochamaelea pulverulenta (Rutaceae), an endemic shrub relying exclusively on these frugivores for seed dispersal, are evaluated. Results show that the age structure patterns (quantitative component) did not differ, but significant reductions in effective recruitment rate, and seedling vigour in populations hosting small- to medium-sized lizard species, are found. Results highlight the importance of conserving the full range of functional processes (qualitative and quantitative components) involved in mutualistic interactions crucial for the persistence of local regeneration and plant population dynamics. informacion[at]ebd.csic.es Pérez-Méndez et al (2015).  Downsized mutualisms: Consequences of seed dispersers' body-size reduction for early plant recruitment. Perspect Plant Ecol Evol Syst DOI: 10.1016/j.ppees.2014.12.001


Average (0 Votes)

Latest News Latest News

Transporting Biodiversity Using Transmission Power Lines as Stepping-Stones

The most common ecological response to climate change is the shifts in species distribution ranges. Nevertheless, landscape fragmentation compromises the ability of limited dispersal species to...

Spanish scientists warn: Urgent need for planning of renewable energies to safeguard biodiversity

Spanish researchers warn in a letter that the new projects for renewable enery plants in Spain will affect hundreds of thousands of hectares and that there is no way to offset the huge quantity of...

Oversea migration of white storks through the water barriers of the straits of Gibraltar

Soaring landbirds typically exploit atmospheric uplift as they fly overland, displaying a highly effective energy-saving locomotion. However, large water bodies lack thermal updrafts, potentially...