13 Works

Cumulative germination of seeds ingested by black howler monkeys

Julieta Benitez Malvido & Ana Maria González-Di Pierro
Premise of the Study: Primates are important seed dispersers, especially for large-seeded (> 1 cm length) tropical species in continuous and fragmented rainforests. Methods: In three forest fragments within the Montes Azules Biosphere Reserve, southern Mexico, we investigated the effect of howler monkeys´ (Alouatta pigra) gut passage on the germination rate and maximum germination (%) of native large-seeded species. One group of howler monkeys, per fragment, was followed and fresh feces collected. Large seeds were...

Data from: Experimental defaunation of terrestrial mammalian herbivores alters tropical rain forest understory diversity

Angela A. Camargo-Sanabria, Eduardo Mendoza, Roger Guevara, Miguel Martínez-Ramos & Rodolfo Dirzo
It has been suggested that tropical defaunation may unleash community-wide cascading effects, leading to reductions in plant diversity. However, experimental evidence establishing cause–effect relationships thereof is poor. Through a 5 year exclosure experiment, we tested the hypothesis that mammalian defaunation affects tree seedling/sapling community dynamics leading to reductions in understorey plant diversity. We established plot triplets (n = 25) representing three defaunation contexts: terrestrial-mammal exclosure (TE), medium/large mammal exclosure (PE) and open access controls (C)....

Camera-trapping records of birds and mammals visiting water-filled tree holes in the Calakmul region in southern Mexico

Carlos M. Delgado-Martínez, Sabine J. Cudney-Valenzuela & Eduardo Mendoza
Using camera-traps we documented that 21 bird and 9 mammal species visited water-filled tree holes (dendrotelmata) in the seasonal tropical forest of the Calakmul Biosphere Reserve, in southern Mexico. These species visited dendrotelmata primarily for foraging and drinking. The overall use of dendrotelmata was equally frequent between dry and rainy seasons but drinking behavior increased among birds during the dry season. This dataset includes information on the identity of visiting species, time and date of...

Data from: Genomics overrules mitochondrial DNA, siding with morphology on a controversial case of species delimitation

Carmen R. Del Pedraza-Marrón, Raimundo Silva, Jonathan Deeds, Steven M. Van Belleghem, Alicia Mastretta-Yanes, Omar Domínguez-Domínguez, Rafael A. Rivero-Vega, Loretta Lutackas, Debra Murie, Daryl Parkyn, Lewis H. Bullock, Kristin Foss, Humberto Ortiz-Zuazaga, Juan Narváez-Barandica, Arturo Acero, Grazielle Gomes & Ricardo Betancur-R.
Species delimitation is a major quest in biology and is essential for adequate management of the organismal diversity. A challenging example comprises the fish species of red snappers in the Western Atlantic. Red snappers have been traditionally recognized as two separate species based on morphology: Lutjanus campechanus (northern red snapper) and L. purpureus (southern red snappers). Recent genetic studies using mitochondrial markers, however, failed to delineate these nominal species, leading to the current lumping of...

Data from: Removal of cattle accelerates tropical dry forests succession in Northwestern Mexico

Leonel Lopez-Toledo, Abdieel Quisehuatl-Medina, Joshua Averet & Bryan Endress
Domestic livestock influence patterns of secondary succession across forest ecosystems. However, the effects of cattle on the regeneration of tropical dry forests (TDF) in Mexico are poorly understood, largely because it is difficult to locate forests that are not grazed by cattle or other livestock. We describe changes in forest composition and structure along a successional chronosequence of TDF stands with and without cattle (chronic grazing or exclusion from grazing for ~8 yr). Forest stands...

Data from: A combined mesowear analysis of Mexican Bison antiquus shows a generalist diet with geographical variation

Roberto Díaz-Sibaja, Eduardo Jiménez-Hidalgo, Javier Ponce-Saavedra & María Luisa García-Zepeda
Bison antiquus was one of the largest and most widely distributed megafaunal species during the Late Pleistocene in North America, giving rise to the modern plains bison in the middle Holocene. Despite the importance of the ancient bison, little is known about its feeding ecology. We employed a combination of extended mesowear, and mesowear III to infer the diet preference and habitat use of three Mexican samples of B. antiquus. Two northern samples from the...

Identifying drivers of forest resilience in long-term records from the Neotropics

Carole Adolf, Carolina Tovar, Nicola Kühn, Hermann Behling, Juan Carlos Berrío, Gabriela Dominguez-Vázquez, Blanca Figueroa-Rangel, Zaire Gonzalez-Carranza, Gerald Alexander Islebe, Henry Hooghiemstra, Hector Neff, Miguel Olvera-Vargas, Bronwen Whitney, Matthew J. Wooller & Kathy J. Willis
Here we use 30 long-term, high-resolution palaeoecological records from Mexico, Central and South America to address two hypotheses regarding possible drivers of resilience in tropical forests as measured in terms of recovery rates from previous disturbances. First, we hypothesise that faster recovery rates are associated with regions of higher biodiversity, as suggested by the insurance hypothesis. And second, that resilience is due to intrinsic abiotic factors that are location specific, thus regions presently displaying resilience...

Landscape structure shapes the diversity of tree seedlings at multiple spatial scales in a fragmented tropical rainforest

Sergio Nicasio-Arzeta, Julieta Benítez-Malvido, Isela Zermeño-Hernández & Susana Maza-Villalobos
The maintenance of seedling diversity of animal-dispersed tree species is fundamental for the structure and function of forest patches in fragmented tropical rainforests. Nonetheless, the effects of landscape structure at different spatial scales on α- and β-diversity of tree seedling communities are recently explored. Using a multi-scale approach, we assessed the relative effect of landscape composition and configuration on α- and β-diversity of animal-dispersed seedlings within 16 forest patches in the Lacandona rainforest, Mexico. We...

Data for influence of avocado orchard landscapes on amphibians and reptiles in the trans-Mexican volcanic belt

Ireri Suazo-Ortuño, Ismaela Vega-Agavo, Leonel Lopez-Toledo, Neftali Sillero, Alberto Gómez-Tagle, Ruben Pineda-López & Javier Alvarado-Díaz
This database was used to evaluate the response of the local herpetofauna to conversion of POF to avocado orchards (AO) in the trans-Mexican volcanic belt in Western Mexico (Michoacán state). We also explored the effects of forest cover on species that differ in their levels of habitat specialization. In the avocado belt in Michoacan, we sampled 12 sites representing a gradient of AO embedded in native POF to evaluate the variation in structure of local...

Vocal recognition suggests premating isolation between lineages of a lekking hummingbird

Clementina Gonzalez, Nataly Cruz-Yepez & Juan Francisco Ornelas
Species with genetically differentiated allopatric populations commonly differ in phenotypic traits due to drift and/or selection, which can be important drivers of reproductive isolation. Wedge-tailed sabrewing (Campylopterus curvipennis) is a species complex composed of three genetically and acoustically differentiated allopatric lineages which correspond to currently recognized subspecies in Mexico: C. c. curvipennis (Sierra Madre Oriental), C. c. pampa (Yucatán Peninsula), and C. c. excellens (Los Tuxtlas). Although excellens is taxonomically recognized as a distinct species,...

Data from: Impact of a hurricane on the herpetofaunal assemblages of a successional chronosequence in a tropical dry forest

Ireri Suazo-Ortuño, José Nicolás Urbina-Cardona, Nancy Lara-Uribe, Jorge Marroquín-Páramo, Yunuen Soto-Sandoval, Jorge Rangel-Orozco, Leonel Lopez-Toledo, Julieta Benítez-Malvido & Javier Alvarado-Díaz
Land‐use change is the main cause of deforestation and degradation of tropical forest in Mexico. Frequently, these lands are abandoned leading to a mosaic of natural vegetation in secondary succession. Further degradation of the natural vegetation in these lands could be exacerbated by stochastic catastrophic events such as hurricanes. Information on the impact of human disturbance parallel to natural disturbance has not yet been evaluated for faunal assemblages in tropical dry forests. To evaluate the...

Data from: A multilocus phylogeny of the fish genus Poeciliopsis: solving taxonomic uncertainties and preliminary evidence of reticulation

Mariana Mateos, Omar Domínguez-Domínguez & Alejandro Varela-Romero
The fish genus Poeciliopsis constitutes a valuable research system for evolutionary ecology, whose phylogenetic relationships have not been fully elucidated. We conducted a multilocus phylogenetic study of the genus based on seven nuclear and two mitochondrial loci with a thorough set of analytical approaches, i.e., concatenated (also known as super-matrix), species trees, and phylogenetic networks. Although several relationships remain unresolved, the overall results uncovered phylogenetic affinities among several members of this genus. A population previously...

Data from: High levels of diversity and population structure in the potato late blight pathogen at the Mexico center of origin

Jianan Wang, Sylvia P. Fernândez-Pavía, Meredith M. Larsen, Edith Garay-Serrano, Rosario Gregorio-Cipriano, Gerardo Rodríguez-Alvarado, Niklaus J. Grünwald & Erica M. Goss
Globally destructive crop pathogens often emerge by migrating out of their native ranges. These pathogens are often diverse at their center of origin, and may exhibit adaptive variation in the invaded range via multiple introductions from different source populations. However, source populations are generally unidentified or poorly studied compared to invasive populations. Phytophthora infestans, the causal agent of late blight, is one of the most costly pathogens of potato and tomato worldwide. Mexico is the...

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Affiliations

  • Universidad Michoacana de San Nicolás de Hidalgo
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  • National Autonomous University of Mexico
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  • El Colegio de la Frontera Sur
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