Validez en la determinación sexual del guacamayo cabeciazul Primolius couloni (Sclater, 1876) utilizando características morfométricas

Universidad Nacional Agraria La Molina. Facultad de Ciencias. Departamento Académico de BiologíaPendiente autorización de autor. Texto completo consultar en Sala Tesis. Biblioteca Agricola Nacional "Orlando Olcese".Tesi

Figure 1 ArcGIS files

This zipped folder includes contains all the information used to create figure one. It is in ArcGIS format (shape files) and includes both polygons and points. The files included give the locations of the used area, the unused area, and all the palm and soil samples collected

Data from: Parrots consume sodium-rich palms in the sodium-deprived landscape of the Western Amazon Basin

Herbivorous animals face shortages of different minerals in different geographic areas. In the Amazon basin, sodium is often limiting, driving herbivores to seek supplemental sources. In the lowlands of the western Amazon basin, parrots commonly consume sodium-rich soils at clay licks but lick use varies widely among species and to date, parrots in the region have not been reported consuming other supplemental sodium sources. We document 11 species of psittacines consuming sodium-rich leaves and trunks of Attalea butyracea palms growing on sodium-rich soils in lowland Peru. Consumed palms had more sodium and less potassium than uneaten A. butyracea palms and other palm species in the area. Among A. butyracea palm parts, sodium and Na:K ratios were highest in trunks (consumed by parrots in 91% of the 721 foraging bouts recorded) and lowest in leaves (consumed in only 14% of foraging bouts). The low potassium and high Na:K ratio suggest that birds may be seeking not just any sodium sources, but those low in potassium, as potassium is known to exacerbate dietary sodium shortages. Use of the palms and species’ abundances in the study area were not correlated. Instead, parrot species that consumed palms the most were those that use relatively few traditional soil clay licks. This finding suggests that parrot species in the region have fundamental differences in preferred strategies for obtaining supplemental sodium and may help explain documented interspecific differences in geophagy.

Parrot count data

This file includes the daily summary data showing the number of groups of each species of parrot seen during the afternoon counts. This was used to obtain the relative abundance of each parrot species in the area

Palm use by birds

This file contains the data on the numbers of birds feeding on each palm. It includes the raw scans that were done every 2.5 or 5 minutes throughout the study. This information was used to calculate the frequency of use of the palms by each parrot species

Palm biochemical analyses

This file includes the biochemical analyses and locations of all the palm samples from both the used and unused areas. The palm species involved include: Attalea butyracea, Attalea phalerata, Euterpes precatoria, Mauritia flexuos

README File

General introduction to all the data files used in this publicatio

Soil analysis data

This file includes the physical characteristics, biochemical analyses, and locations of the soil samples from both the used and unused areas