Plant-pollinator Relationships at Two Altitudes in the Andes of Mendoza, Argentina

• DOI: 10.1080/15230430.2002.12003490
• Publication Date: 2018-07-17T07:44:35Z
• Authors: Diego Medan; Norberto H. Montaldo; Mariano Devoto; Anita Maniese; Viviana Vasellati; Germán G. Roitman; Norberto H. Barto...
• Keywords: Floristics; Hummingbird

The assemblages of visitors to angiosperms flowering at a montane and high alpine site in the Andes Mendoza, Argentina (33–34°S) were described plant-flower visitor matrices analyzed compared other systems, particular those located similar latitude on western slope Andes. In low-altitude (montane) habitat, 23 plant species had total 126 interactions with 71 taxa insects one hummingbird, higher 21 plants 45 insect 83 interactions. Connectances 7.6 8.7, respectively. Diptera Hymenoptera dominated both sites without change proportions altitude, while Lepidoptera significantly increased site. Flies more species-rich than expected sites' constant across altitudes is usually observed. Lack significant decrease altitude (1) frequency (2) number per main differences comparable gradient Chilean proportion self-compatible altitude; however, use phylogenetically-independent contrasts showed that prevalence selfers does not reflect generalized reaction pattern but results from two speciose families (Asteraceae Fabaceae) showing self-compatibility altitudes.