scholarly journals Tropical rain forest fragmentation and wild populations of primates at Los Tuxtlas, Mexico

1996 ◽  
Vol 17 (5) ◽  
pp. 759-783 ◽  
Author(s):  
Alejandro Estrada ◽  
Rosamond Coates-Estrada
Keyword(s):  
Forest Fragmentation ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Los Tuxtlas ◽  
Wild Populations

Change in Land Use Alters the Diversity and Composition of Bradyrhizobium Communities and Led to the Introduction of Rhizobium etli into the Tropical Rain Forest of Los Tuxtlas (Mexico)

2011 ◽  
Vol 63 (4) ◽  
pp. 822-834 ◽  
Author(s):  
Ernesto Ormeño-Orrillo ◽  
Marco A. Rogel-Hernández ◽  
Lourdes Lloret ◽  
Aline López-López ◽  
Julio Martínez ◽  
...  
Keyword(s):  
Land Use ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Los Tuxtlas ◽  
Rhizobium Etli

Dung beetles attracted to mammalian herbivore (Alouatta palliata) and omnivore (Nasua narica) dung in the tropical rain forest of Los Tuxtlas, Mexico

1993 ◽  
Vol 9 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Alejandro Estrada ◽  
Gonzalo Halffter ◽  
Rosamond Coates-Estrada ◽  
Dennis A. Meritt
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Dung Beetle ◽  
Dung Beetles ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Los Tuxtlas ◽  
Nasua Narica ◽  
Ball Rolling ◽  
Species Overlap

ABSTRACTDung beetles attracted to howler monkey (Alouatta palliata) and coati (Nasua narica) dung were studied for an annual cycle in the tropical rain forest of Los Tuxtlas, Mexico. Pitfall traps set for 24 h month−1 captured 1567 dung beetles of 21 species. The species Canlhidium martinto, Deltochilum pseudoparile and Canthon femoralis accounted for 62% of all individuals captured. While species overlap was high (> 80%) between diurnal and nocturnal samples and between howler monkey and coati dung baits, coati dung attracted species such as C. martinezi, D. pseudoparile and Onthophagus rhinolophus while species such as C. femoralis and Copris laeviceps were numerically dominant at howler monkey dung. Thirteen non-ball rolling dung beetle species and eight ball-rolling species accounted for 43% and for 57% of all beetles captured respectively. Dung beetles were present and active in all months of the year, but occurred in higher numbers between the months of March and October, when temperatures were higher. Relative abundance of howler monkey and coati dung in the rain forest of Los Tuxtlas was estimated at 11.2 g (fresh weight) ha−1 day−1 and at 13.0 g ha−1 day−1 respectively, a seemingly low amount for the large number of scarabs attracted to the dung.

Effects of Forest Fragmentation on Pteridophyte Diversity in a Tropical Rain Forest in Brazil

Plant Ecology ◽  
2005 ◽  
Vol 180 (1) ◽  
pp. 87-104 ◽  
Author(s):  
Mateus Luís Barradas Paciencia ◽  
Jefferson Prado
Keyword(s):  
Forest Fragmentation ◽  
Rain Forest ◽  
Tropical Rain Forest

Fruiting and frugivores at a strangler fig in the tropical rain forest of Los Tuxtlas, Mexico

1986 ◽  
Vol 2 (4) ◽  
pp. 349-357 ◽  
Author(s):  
Rosamond Coates-Estrada ◽  
Alejandro Estrada
Keyword(s):  
Plant Species ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Sampling Period ◽  
Alouatta Palliata ◽  
Chemical Analyses ◽  
Los Tuxtlas ◽  
Tree Crown ◽  
Ripe Fruit ◽  
Fruit Availability

ABSTRACTDiurnal and nocturnal censuses were conducted on animal visitors at a single strangler Ficus aff. cotinifolia (H.B.K.) tree during the entire period of ripe fruit availability. Fruit fall to the ground was measured with fruit traps, and chemical analyses were conducted on the figs. Fourteen species of birds, four species of nonvolant mammals and two species of bats consumed the figs. Of the total number of ripe figs accounted for during the sampling period (N= 1.9 X 105), 42% fell to the ground, 45% were removed by mammals and 13% by birds. Frugivores such as the howling monkey Alouatta palliata, the cacomistle Bassariscus sumichrasti, the keel-billed toucan Ramphastos sulphuratus and fruit-eating bats removed the largest amounts of figs from the tree and deposited seeds of 13 plant species other than figs below the tree crown.

Avian attendance and foraging at army-ant swarms in the tropical rain forest of Los Tuxtlas, Veracruz, Mexico

1989 ◽  
Vol 5 (3) ◽  
pp. 281-292 ◽  
Author(s):  
Rosamond Coates-Estrada ◽  
Alejandro Estrada
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Foraging Ecology ◽  
Bird Species ◽  
Central Zone ◽  
Los Tuxtlas ◽  
Army Ants ◽  
Important Species ◽  
Army Ant ◽  
Oporornis Formosus

ABSTRACTForaging and attendance of birds at army-ant swarm raids were studied in the tropical rain forest of Los Tuxtlas, Mexico. Sixty-eight raiding swarms were intercepted over a four-year period of which 57% were Eciton burchelli and 43% Labidus praedator. A total of 461 birds (37 species/12 families) were recorded at swarms of E. burchelli and 208 birds (34 species/10 families) were recorded at L. praedator swarms. The mean number of bird species detected per swarm was 7.2 at E. burchelli raids and 5.6 at L. praedator raids. Red-throated ant-tanagers (Habia fuscicauda) were most frequently seen at the swarms of both army-ant species. Other important species were the golden-crowned warbler (Basileuterus culicivorus), the white-breasted wood wren (Henicorhina leucosticta) and the Kentucky warbler (Oporornis formosus). Swarms of both army-ant species were active year-round. Birds weighing between 20 and 40 g dominated perches closest to the ground and the central zone of the swarms, richest in animal prey. Birds weighing less than 20 g occupied higher perches and tended to forage in more peripheral zones. At Los Tuxtlas raiding swarms of army ants are important in the foraging ecology of 44 bird species, including 12 North American migrants.

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