Does mutualism hinder biodiversity?
نویسندگان
چکیده
X iv :1 40 9. 16 83 v1 [ qbi o. PE ] 5 S ep 2 01 4 Does mutualism hinder biodiversity? Alberto Pascual-Garćıa, Antonio Ferrera and Ugo Bastolla (1) Centro de Biologia Molecular ”Severo Ochoa” CSIC-UAM Cantoblanco, 28049 Madrid, Spain (2) Departamento de Matemática Aplicada y Estad́ıstica E.T.S.I. Aeronáuticos, Universidad Politécnica de Madrid Plaza Cardenal Cisneros 3, Madrid 28040, Spain (3) E-mail: [email protected]
منابع مشابه
The joint influence of competition and mutualism on the biodiversity of mutualistic ecosystems
Relations among species in ecosystems can be represented by complex networks where both negative (competition) and positive (mutualism) interactions are concurrently present. Recently, it has been shown that many ecosystems can be cast into mutualistic networks, and that nestedness reduces effective inter-species competition, thus facilitating mutually beneficial interactions and increasing the...
متن کاملMutualism Disruption Threatens Global Plant Biodiversity: A Systematic Review
BACKGROUND As global environmental change accelerates, biodiversity losses can disrupt interspecific interactions. Extinctions of mutualist partners can create "widow" species, which may face reduced ecological fitness. Hypothetically, such mutualism disruptions could have cascading effects on biodiversity by causing additional species coextinctions. However, the scope of this problem - the mag...
متن کاملMutualism supports biodiversity when the direct competition is weak
A key question of theoretical ecology is which properties of ecosystems favour their stability and help maintaining biodiversity. This question recently reconsidered mutualistic systems, generating intense controversy about the role of mutualistic interactions and their network architecture. Here we show analytically and verify with simulations that reducing the effective interspecific competit...
متن کاملMutualism in museums: A model for engaging undergraduates in biodiversity science
Museums have an untapped potential to engage students in hands-on learning. Here, we describe the development of a tiered museum-based program at the University of California, Berkeley as a model for engaging undergraduates in biodiversity science. This decade-long effort to increase student participation in collections demonstrates the mutual benefits of undergraduate involvement. Museums bene...
متن کاملBreakdown of an ant-plant mutualism follows the loss of large herbivores from an African savanna.
Mutualisms are key components of biodiversity and ecosystem function, yet the forces maintaining them are poorly understood. We investigated the effects of removing large mammals on an ant-Acacia mutualism in an African savanna. Ten years of large-herbivore exclusion reduced the nectar and housing provided by plants to ants, increasing antagonistic behavior by a mutualistic ant associate and sh...
متن کامل