Browsing by Author "Rivas Arancibia, Sombra Patricia"

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  • Artículo
    Floral visitors of three asteraceae species in a Xeric Environment in Central Mexico
    (2016-09-30) Figueroa Castro, Dulce María; González Tochihuitl, Guadalupe; Rivas Arancibia, Sombra Patricia; Castaño Meneses, Gabriela; Figueroa Castro, Dulce María; 0000-0003-3611-191X; Rivas Arancibia, Sombra Patricia; 0000-0002-5205-5973; Castaño Meneses, Gabriela; 0000-0002-5405-5221
    "We describe the spatial variation in the structure and composition of the communities of insects visiting the inflorescences of Flaveria ramosissima Klatt, Florestina pedata (Cav.) Cass., and Parthenium bipinnatifidum (Ort.) Rollins (Asteraceae) in a xeric environment in Central Mexico. Inflorescences of the three Asteraceae were visited by a total of 96 species of Hymenoptera, Diptera, Lepidoptera, Coleoptera, and Hemiptera. Total species richness of floral visitors to the three Asteraceae and total abundance of insects of Fl. pedata and P. bipinnatifidum did not differ between low and high vegetation cover sites. Total abundance of insects visiting the inflorescences of F. ramosissima and abundance of Hymenoptera in all three Asteraceae were higher at the low vegetation coverage (LVC) site than at the high vegetation coverage (HVC) one. Diversity of insects of Fl. pedata and P. bipinnatifidum was higher at the HVC site. However, in F. ramosissima diversity was higher at the LVC site".
  • Artículo
    Insect visitors to the annual plant community in a xeric environment in central Mexico
    (2017) Figueroa Castro, Dulce María; Rivas Arancibia, Sombra Patricia; Castaño Meneses, Gabriela; González Tochihuitl, Guadalupe; Ramírez Morales, María del Carmen; Figueroa Castro, Dulce María; 0000-0003-3611-191X; Rivas Arancibia, Sombra Patricia; 0000-0002-5205-5973; Castaño Meneses, Gabriela; 0000-0002-5405-5221
    "The interactions between the plant community and their floral visitors might vary through space, causing changes in the structure and composition of the communities of floral visitors. Although numerous studies have addressed the variation in the communities of floral visitors through space, none of them have analyzed how the structure of the community of floral visitors for all the co-flowering annual plant species changes between sites. We describe how the community of floral visitors to annual plants varies through space in a xeric community in central Mexico. We collected all the insects visiting the flowers of the annual plants growing in 2 sites with contrasting plant density (low vs. high). We determined species richness, abundance, and diversity for the insect communities in each site. We established the similarity in the composition of the insect communities and the importance of environmental variables on the dynamics of the communities of floral visitors. Abundance and diversity of floral visitors were significantly higher in the low plant density site. The composition of the insect communities differed between sites (similarity = 32%). Changes in abundance of a few groups of insects seem to be related to environmental factors such as disturbance, humidity and temperature".