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The flowerpiercers interactions with a community of high Andean plants

Avian Research 2021年第2期12卷 181-194页

作者： jairo andrés cuta-pineda Luis Alejandro Arias-sosa Roxibell C.Pelayo Research Group“Grupo Ecología de Organismos(GEO-UPTC)” TunjaColom-bia Maestría en Ciencia Biológicas Universidad Pedagógica y Tecnológica de ColombiaTunjaColombia Instituto de Ciencias Ambientales y Ecológicas(ICAE) Universidad de Los AndesMéridaVenezuela

Background:Flowerpiercers(Diglossa)are traditionally considered as“parasites”of the pollination processes,as they can access the nectar without entering in contact with the reproductive structures of the ***,the effect of flowerpiercers seems to vary according to their behavior and the flower’s ***,in this work,we aimed to explore the floral characteristics that may determine the susceptibility to robbing and pollen transport by ***,we identified the potential types of interactions and studied interaction network ***:We collected the information of 16 ornithophilic plants regarding their floral traits and robbing ***,we captured 4 species of flowerpiercers and evaluated pollen transport(frequency and loads).We tested the correlation between floral traits,robbing frequency,and pollen ***,we used these variables in a cluster and principal component analyses to identify the potential types of ***,we analyzed and com-pared the structure of the plants-flowerpiercers interaction ***:Nectar production significantly influenced both nectar robbing and pollen *** the corolla length was only correlated to the robbing ***,we found that particular flowerpiercers species trans-ported higher loads of some plant pollen,which can be related to the differences in behavior and morphometric *** proposed the classification of five different types of plant-flowerpiercer interactions,that showed differ-ent potential mutualist or antagonist relations based on the affectation of nectar robbing and the service of pollen *** interaction networks consisted of 49 links,with 2.4 links per species,and presented indicators of a medium to high resilience,stability,and resistance(nestedness,connectance,and robustness).Also,the network presented medium to low specialization and substantial niche ***:The ecological role of

关键词： Diglossa Flower traits Nectar robbing Nectivorous birds Pollen transport Pollination

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