Forgetting curve in spider monkeys (Ateles geoffroyi): Effects of delay but not the amount of information.

2021 ◽  
Author(s):  
J. Eduardo Reynoso-Cruz ◽  
Laura Teresa Hernández-Salazar ◽  
Javier Nieto
Keyword(s):  
Ateles Geoffroyi ◽  
Spider Monkeys ◽  
Amount Of Information

Captive spider monkeys (Ateles geoffroyi) arm-raise to solicit allo-grooming

2012 ◽  
Vol 89 (3) ◽  
pp. 311-313 ◽  
Author(s):  
Matthew H. Scheel ◽  
Dori Edwards
Keyword(s):  
Ateles Geoffroyi ◽  
Spider Monkeys

scholarly journals Selectivity in feeding preferences and ranging patterns in spider monkeys Ateles geoffroyi yucatanensis of northeastern Yucatan peninsula, Mexico

2013 ◽  
Vol 59 (1) ◽  
pp. 125-134 ◽  
Author(s):  
Carmen Scherbaum ◽  
Alejandro Estrada
Keyword(s):  
Yucatan Peninsula ◽  
Spider Monkey ◽  
Ateles Geoffroyi ◽  
Spider Monkeys ◽  
Feeding Time ◽  
Feeding Preferences ◽  
Southern Mexico ◽  
Ranging Patterns ◽  
Yucatán Peninsula ◽  
Total Feeding

Abstract The spider monkey, a fruit specialist and important seed dispersal agent in the Neotropics, is an endangered primate due to habitat loss, hunting and the pet trade. Spider monkeys have been the subject of a few studies in Central and South America, but little is known about the diet and ranging for this primate in southern Mexico. Here we report the results of a six-month long study (October 2010 to March 2011) of the feeding preferences and ranging patterns of the Yucatan spider monkey Ateles geoffroyi yucatanensis living in the “Ya´ax´che” reserve by the Caribbean coast in northeast Yucatan peninsula. Focal animal and scan sampling as well as GPS tracking were used to document spider monkey feeding behavior, location of food trees and ranging in the reserve. The spider monkeys used 36 species of plants (94% trees; n = 432) and six non tree morphospecies as a source of food. Six tree species accounted for ≥80% of total feeding time and for 74% of all trees used. Fruits accounted for 59% of total feeding time, followed by leaves (35%), palm piths (5%) and other plant parts (1%). Total range used by the monkeys was estimated at 43% of semievergreen rainforest habitat available (ca 40ha). Range use was not random with segments showing light, moderate and heavy use; the use of different areas of their range varied monthly and was closely linked to the spatial dispersion of the trees used for food.

scholarly journals Homosexual Behavior Between Male Spider Monkeys (Ateles geoffroyi)

2018 ◽  
Vol 47 (4) ◽  
pp. 857-861 ◽  
Author(s):  
Laura Busia ◽  
Anthony R. Denice ◽  
Filippo Aureli ◽  
Colleen M. Schaffner
Keyword(s):  
Homosexual Behavior ◽  
Ateles Geoffroyi ◽  
Spider Monkeys

Taste Responsiveness of Spider Monkeys to Dietary Ethanol

2019 ◽  
Vol 44 (8) ◽  
pp. 631-638 ◽  
Author(s):  
Daniel Dausch Ibañez ◽  
Laura Teresa Hernandez Salazar ◽  
Matthias Laska
Keyword(s):  
Short Duration ◽  
Sucrose Solution ◽  
Preference Test ◽  
Taste Preference ◽  
Ateles Geoffroyi ◽  
Spider Monkeys ◽  
Taste Preferences ◽  
Additional Source ◽  
Ethanol Mixture ◽  
Sucrose Solutions

Abstract Recent studies suggest that frugivorous primates might display a preference for the ethanol produced by microbia in overripe, fermenting fruit as an additional source of calories. We, therefore, assessed the taste responsiveness of 8 spider monkeys (Ateles geoffroyi) to the range of ethanol concentrations found in overripe, fermenting fruit (0.05–3.0%) and determined taste preference thresholds as well as relative taste preferences for ethanol presented in sucrose solutions and in fruit matrices, respectively. Using a 2-bottle preference test of short duration (1 min), we found that spider monkeys are able to detect ethanol concentrations as low as 0.5%, that they prefer ethanol concentrations up to 3% over water, and that they prefer sucrose solutions and pureed fruit spiked with ethanol over equimolar sucrose solutions and pureed fruit without ethanol. However, when presented with an ethanol-spiked sucrose solution and a higher-concentrated sucrose solution without ethanol, the animals clearly preferred the latter, even when the sucrose–ethanol mixture contained 3 times more calories. These results demonstrate that spider monkeys are more sensitive to the taste of ethanol than rats and humans and that they prefer ecologically relevant suprathreshold concentrations of ethanol over water. Tests with sucrose solutions and pureed fruits that were either spiked with ethanol or not suggest that sweetness may be more important for the preferences displayed by the spider monkeys than the calories provided by ethanol. The present results, therefore, do not support the notion that dietary ethanol might be used by frugivorous primates as a supplemental source of calories.

scholarly journals Site Fidelity in Space Use by Spider Monkeys (Ateles geoffroyi) in the Yucatan Peninsula, Mexico

PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e62813 ◽  
Author(s):  
Gabriel Ramos-Fernandez ◽  
Sandra E. Smith Aguilar ◽  
Colleen M. Schaffner ◽  
Laura G. Vick ◽  
Filippo Aureli
Keyword(s):  
Site Fidelity ◽  
Yucatan Peninsula ◽  
Space Use ◽  
Ateles Geoffroyi ◽  
Spider Monkeys ◽  
Yucatán Peninsula

Association networks in spider monkeys (Ateles geoffroyi)

2009 ◽  
Vol 63 (7) ◽  
pp. 999-1013 ◽  
Author(s):  
Gabriel Ramos-Fernández ◽  
Denis Boyer ◽  
Filippo Aureli ◽  
Laura G. Vick
Keyword(s):  
Ateles Geoffroyi ◽  
Spider Monkeys
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