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Publikováno v:
Studies on Neotropical Fauna and Environment. :1-8
Autor:
Federico A Chinchilla
Publikováno v:
Revista de Biología Tropical, Vol 57, Iss 3, Pp 865-877 (2009)
Few studies have evaluated seed predation in fragmented landscapes, in which lower species diversity is expected to modifying ecological interactions. The rates of seed removal by mammals were investigated in a continuous forest and two fragmented pa
Externí odkaz:
https://doaj.org/article/0365d84d09344e65a24dd22d23bf7445
Autor:
N. Ocampo, Federico A. Chinchilla, Alejandro G. Farji-Brener, Beatriz Willink, G. Bruner, Naia Morueta-Holme
Publikováno v:
Farji-Brener, A G, Morueta-Holme, N, Chinchilla, F, Willink, B, Ocampo, N & Bruner, G 2012, ' Leaf-cutting ants as road engineers: the width of trails at branching points in Atta cephalotes ', Insectes Sociaux, vol. 59, no. 3, pp. 389-394 . https://doi.org/10.1007/s00040-012-0231-0
We used a simple engineering principle, which suggests that the width of a road needed for a smooth traffic flow is proportional to the peak traffic volume (“engineering hypothesis”), to analyze the adaptive significance of trail width at branchi
Autor:
Seth Rifkin, Ana M. Sánchez Cuervo, Paola Giraldo, Emilia Triana, Federico A. Chinchilla, Alejandro G. Farji-Brener, Verónica Andrea Quiroga
Publikováno v:
Physiological Entomology. 36:128-134
The foraging behaviour of social insects is highly flexible because it depends on the interplay between individual and collective decisions. In ants that use foraging trails, high ant flow may entail traffic problems if different workers vary widely
Autor:
S. Cabrera, Federico A. Chinchilla, Alejandro G. Farji-Brener, S. Escobar, C. Sandoval, M.I. Herrera, Sabrina Amador-Vargas
Publikováno v:
Animal Behaviour. 79:343-349
Living in large societies involves costs associated with high density of individuals, but being near others includes the benefit of access to conspecifics' information. High densities of workers in ant colonies impose traffic congestion costs on fora
Autor:
Marianela Velilla, Federico A. Chinchilla, Ainhoa Magrach, Víctor Romero, Marcos Ríos, José M. Serrano, Sabrina Amador-Vargas, Alejandro G. Farji-Brener
Publikováno v:
Journal of Tropical Ecology. 25:331-335
The nurse effect is a positive interaction in which one plant (the nurse) provides conditions that enhance the establishment and growth of another plant species (Callaway 1995). Increased environmental severity appeared to increase the strength of nu
Autor:
Maríia Elena Ocasio-Torres, Alejandro G. Farji-Brener, Mónica I. de Torres Curth, Diana Acosta-Rojas, María Natalia Umaña, Sofía Marinaro, Federico A. Chinchilla, Alexander Chauta-Mellizo, Sabrina Amador-Vargas
Publikováno v:
Scopus-Elsevier
The design of transport paths in consuming entities that use routes to access food should be under strong selective pressures to reduce costs and increase benefits. We studied the adaptive nature of branching angles in foraging trail networks of the