Long‐term consistency in spatial patterns of primate seed dispersal

• Published in: Ecology and evolution 2017-03, Vol.7 (5), p.1435-1441
• Main Authors: Heymann, Eckhard W., Culot, Laurence, Knogge, Christoph, Noriega Piña, Tony Enrique, Tirado Herrera, Emérita R., Klapproth, Matthias, Zinner, Dietmar
• Format: Article
• Language: English
• Subjects: Animal behavior; Breeding success; Callitrichidae; Carbon sequestration; Consistency; Dispersal; dispersal distances; dispersaldistances; Dispersion; Ecological effects; Embryos; Environmental sciences & ecology; Flowers & plants; Frugivores; Genetic structure; kernel density estimates; Landscape; Legumes; Life sciences; Original Research; Parkia; plant-animal interactions; Rainforests; Regeneration; Reproduction; Saguinus mystax; Sciences de l’environnement & écologie; Sciences du vivant; Seed dispersal; Seeds; Species; Studies; tropical forest; Tropical forests
• ISSN: 2045-7758; 2045-7758
• DOI: 10.1002/ece3.2756

Seed dispersal is a key ecological process in tropical forests, with effects on various levels ranging from plant reproductive success to the carbon storage potential of tropical rainforests. On a local and landscape scale, spatial patterns of seed dispersal create the template for the recruitment process and thus influence the population dynamics of plant species. The strength of this influence will depend on the long‐term consistency of spatial patterns of seed dispersal. We examined the long‐term consistency of spatial patterns of seed dispersal with spatially explicit data on seed dispersal by two neotropical primate species, Leontocebus nigrifrons and Saguinus mystax (Callitrichidae), collected during four independent studies between 1994 and 2013. Using distributions of dispersal probability over distances independent of plant species, cumulative dispersal distances, and kernel density estimates, we show that spatial patterns of seed dispersal are highly consistent over time. For a specific plant species, the legume Parkia panurensis, the convergence of cumulative distributions at a distance of 300 m, and the high probability of dispersal within 100 m from source trees coincide with the dimension of the spatial–genetic structure on the embryo/juvenile (300 m) and adult stage (100 m), respectively, of this plant species. Our results are the first demonstration of long‐term consistency of spatial patterns of seed dispersal created by tropical frugivores. Such consistency may translate into idiosyncratic patterns of regeneration. We analysed the long‐term consistency of spatial patterns of seed dispersal with spatially explicit data on seed dispersal by two Neotropical primate species, Leontocebus nigrifrons and Saguinus mystax (Callitrichidae). Examining distributions of dispersal probability over distances, cumulative dispersal distances and kernel density estimates, we demonstrate for the first time long‐term consistency of spatial patterns of seed dispersal created by tropical frugivores.