[DOWNLOAD] "Ecological Impacts of Seed-Harvester Ants on the Phenological Events of Seven Mojave Desert Shrub Species in Southern Nevada." by Bulletin (Southern California Academy of Sciences) ~ Book PDF Kindle ePub Free

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eBook details

• Title: Ecological Impacts of Seed-Harvester Ants on the Phenological Events of Seven Mojave Desert Shrub Species in Southern Nevada.
• Author : Bulletin (Southern California Academy of Sciences)
• Release Date : January 01, 2004
• Genre: Engineering,Books,Professional & Technical,
• Pages : * pages
• Size : 201 KB

Description

Abstract.--Ecological impacts of a seed-harvester ant (Pogonomyrmex rugosus) infestation on the phenological characteristics of surrounding seven Mojave Desert shrub species were quantitatively investigated in Las Vegas Valley of southern Nevada. These shrub species were Shockley's goldenhead (Acamptopappus shockleyi), white bursage (Ambrosia dumosa), shadscale (Atriplex confertifolia), Nevada ephedra (Ephedra nevadensis), winterfat (Krascheninnikovia lanata), range ratany (Krameria erecta), and creosote bush (Larrea tridentata). The initiation of leafing, flowering, and fruiting phenologies was significantly delayed, and flowering success was significantly reduced in all shrub species occurring within and around the nest area compared to the adjacent non-nest area. The interval between initial dates of each major phenophase (leafing, flowering, and fruiting) of all shrub species became larger in nest relative to non-nest areas. The infestation of seed-harvester ants had a detrimental effect on the phenological events of seven Mojave Desert shrub species in southern Nevada. **********

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