Uses of GBIF in scientific research

Peer-reviewed research citing GBIF as a data source, with at least one author from Mexico.
Extracted from the Mendeley GBIF Public Library.

List of publications

  • Bagley, J., Sandel, M., Travis, J., Lozano-Vilano, M., Johnson, J.

    Paleoclimatic modeling and phylogeography of least killifish, Heterandria formosa: insights into Pleistocene expansion-contraction dynamics and evolutionary history of North American Coastal Plain freshwater biota

    (Journal name unavailable from Mendeley API. To be updated soon...)

    BACKGROUND: Climatic and sea-level fluctuations throughout the last Pleistocene glacial cycle (~130-0 ka) profoundly influenced present-day distributions and genetic diversity of Northern Hemisphere biotas by forcing range contractions in many species during the glacial advance and allowing expansion following glacial retreat ('expansion-contraction' model). Evidence for such range dynamics and refugia in the unglaciated Gulf-Atlantic Coastal Plain stems largely from terrestrial species, and aquatic species Pleistocene responses remain relatively uninvestigated. Heterandria formosa, a wide-ranging regional endemic, presents an ideal system to test the expansion-contraction model within this biota. By integrating ecological niche modeling and phylogeography, we infer the Pleistocene history of this livebearing fish (Poeciliidae) and test for several predicted distributional and genetic effects of the last glaciation. RESULTS: Paleoclimatic models predicted range contraction to a single southwest Florida peninsula refugium during the Last Glacial Maximum, followed by northward expansion. We inferred spatial-population subdivision into four groups that reflect genetic barriers outside this refuge. Several other features of the genetic data were consistent with predictions derived from an expansion-contraction model: limited intraspecific divergence (e.g. mean mtDNA p-distance = 0.66%); a pattern of mtDNA diversity (mean Hd = 0.934; mean pi = 0.007) consistent with rapid, recent population expansion; a lack of mtDNA isolation-by-distance; and clinal variation in allozyme diversity with higher diversity at lower latitudes near the predicted refugium. Statistical tests of mismatch distributions and coalescent simulations of the gene tree lent greater support to a scenario of post-glacial expansion and diversification from a single refugium than to any other model examined (e.g. multiple-refugia scenarios). CONCLUSIONS: Congruent results from diverse data indicate H. formosa fits the classic Pleistocene expansion-contraction model, even as the genetic data suggest additional ecological influences on population structure. While evidence for Plio-Pleistocene Gulf Coast vicariance is well described for many freshwater species presently codistributed with H. formosa, this species demography and diversification departs notably from this pattern. Species-specific expansion-contraction dynamics may therefore have figured more prominently in shaping Coastal Plain evolutionary history than previously thought. Our findings bolster growing appreciation for the complexity of phylogeographical structuring within North America's southern refugia, including responses of Coastal Plain freshwater biota to Pleistocene climatic fluctuations.

  • Escalante, T., Rodríguez-Tapia, G., Linaje, M., Morrone, J., Noguera-Urbano, E.

    Mammal species richness and biogeographic structure at the southern boundaries of the Nearctic region

    (Journal name unavailable from Mendeley API. To be updated soon...)

    We analyzed whether the spatial variation in mammal species richness reflects the southern bounda- ries of the Nearctic region as previously established by endemism patterns. Records from 710 mammal species were drawn on a map of North America (from Canada and Alaska to Panama) gridded at 4 ° latitude-longitude. We evaluated the probable existence of unknown spe- cies through three richness estimators (Chao2, ICE, and Jack1), modeled the potential distribution of species, and mapped the predicted pattern of species richness through the number of coexisting potential distribu- tions. The poorest grid cells are in the northern areas, whereas the richest ones are in the southern areas, coinciding with the pattern of collecting points. The average richness of 4 ° grid cells comprising the Nearc- tic region was 18 species, and the richest 4 ° grid cells had 150 species, coinciding with the 26 ° latitude. From the 406 mammal species of the Nearctic region, 104 are restricted to it, and 305 species situated south of it are not distributed in the region. The map of predicted rich- ness shows the classical latitudinal diversity gradient, with the number of species increasing to the tropics. We conclude that the Nearctic region has a low mam- mal richness, with a richness pattern corresponding with previously described patterns of endemism, with a boundary situated at 26 ° – 30 ° latitude. Keywords:

    Keywords: diversity, endemicity, North America, richness estimators, species distribution models

  • Escalante, T., Morrone, J., Rodríguez-tapia, G.

    Biogeographic regions of North American mammals based on endemism

    (Journal name unavailable from Mendeley API. To be updated soon...)

    Since the 19th Century, two regions have been recognized for North American mammals, which overlap in Mexico. The Nearctic region corresponds to the northern areas and the Neotropical region corresponds to the southern ones. There are no recent regionalizations for these regions under the criterion of endemism. In the present study, we integrate two methods to regionalize North America, using species distribution models of mammals: endemicity analysis (EA) and parsimony analysis of endemicity (PAE). EA was used to obtain areas of endemism and PAE was used to hierarchize them. We found 76 consensus areas from 329 sets classified in 146 cladograms, and the strict consensus cladogram shows a basal polytomy with 14 areas and 16 clades. The final regionalization recognizes two regions (Nearctic and Neotropical) and a transition zone (Mexican Transition Zone), six subregions (Canadian, Alleghanian, Californian-Rocky Mountain, Pacific Central America, Mexican Gulf-Central America, and Central America), two dominions (Californian and Rocky Mountain), and 23 provinces. Our analysis show that North America is probably more complex than previously assumed.

    Keywords: endemicity analysis, Mexican Transition Zone, Nearctic, Neotropical, parsimony analysis of endemicity, provinces, species distribution models

  • Hosner, P., Boggess, N., Alviola, P., Sánchez-González, L., Oliveros, C., Urriza, R., Moyle, R.

    Phylogeography of the Robsonius Ground-Warblers (Passeriformes: Locustellidae) Reveals an Undescribed Species from Northeastern Luzon, Philippines

    The Condor 115(3) 630-639.

    The Robsonius ground-warblers are forest birds endemic to the Luzon Island complex in the Philippine archipelago. Their systematic relationships have long remained ambiguous; until recently they were included in the timaliid genus Napothera. Two Robsonius species are currently recognized on the basis of plumage differences: R. rabori from northern Luzon in the Cordillera Central and the northern Sierra Madre, and R. sorsogonensis from southern Luzon and Catanduanes Island. Recent specimen collections, including the first adult specimen from the Cordillera Central, establish plumage differences between populations of R. rabori in the Cordillera Central and Sierra Madre and reveal a third diagnosable population within Luzon. These differences have gone unnoticed because R. rabori (sensu stricto) had been known only from the juvenile holotype. Molecular phylogenetic data further support the hypothesis that three highly divergent taxa occur across the Luzon Island complex: Robsonius rabori is known only from the northern Cordillera Central in Ilocos Norte; an undescribed taxon (formerly included in R. rabori) occurs in the northern Sierra Madre in Cagayan, Isabela, Aurora, and Nueva Vizcaya provinces; and R. sorsogonensis occurs in southern Luzon (Bulacan and Laguna provinces), the Bicol Peninsula, and on Catanduanes Island. The existence of three putatively allopatric species within the Luzon island complex highlights the role of in situ diversification in island systems, and brings attention to the need for forest conservation to protect geographically restricted populations throughout the Luzon Island complex.

    Keywords: diversification, endemism, napothera, philippines, phylogeography

  • Rodríguez-Gómez, F., Gutiérrez-Rodríguez, C., Ornelas, J.

    Genetic, phenotypic and ecological divergence with gene flow at the Isthmus of Tehuantepec: the case of the azure-crowned hummingbird ( Amazilia cyanocephala )

    Journal of Biogeography.

    Aim We test whether populations of the Mesoamerican azure-crowned hum- mingbird, Amazilia cyanocephala (Trochilidae), located east and west of the Isthmus of Tehuantepec are genetically, morphologically and environmentally differentiated and examine the relative role of drift and selection in driving diversification. Location Mexico. Methods We sequenced the mitochondrial ATPase-6 and ATPase-8 genes and the control region of 130 individuals collected throughout the range of the spe- cies in Mexico. Population genetic methods and coalescent tests were used to reconstruct the phylogeography of the species. Morphological and niche varia- tion between genetic groups of A. cyanocephala were assessed. Results The data revealed two genetic groups separated by the Isthmus of Tehuantepec in the late Pleistocene (49,300–75,800 years ago), with the split occurring in the presence of gene flow. Deviations from demographic equilibrium were detected for the two genetic groups, indicating more recent population expansions. Amazilia cyanocephala individuals from populations on either side of the Isthmus of Tehuantepec differed in mor- phology and were distributed in unique environmental space. A coalescent- based test indicated that selection is driving the observed morphological differentiation. Main conclusions Our findings implicate the Isthmus of Tehuantepec as a permeable barrier driving recent diversification of A. cyanocephala in the pres- ence of gene flow. The two A. cyanocephala mitochondrial DNA (mtDNA) groups corresponding with morphological and environmental niche differences, in concert with the results of a coalescent-based test, suggest that selection has been strong enough to counteract the effects of gene flow.

    Keywords: Amazilia cyanocephala, gene flow, genetic differentiation, Isthmus of Tehuantepec, Mexico, morphological variation, niche divergence, Pleistocene, selection

  • Smith, S., Mendoza, M., Zúñiga, G., Halbrook, K., Hayes, J., Byrne, D.

    Predicting the distribution of a novel bark beetle and its pine hosts under future climate conditions

    Agricultural and Forest Entomology.

    1 Understanding the distribution of key biotic elements of forest ecosystems is essential in contemporary forest management and in planning to meet future management needs. Habitat distribution (niche) models based on known occurrences provide geographical structure for such management as the environmental factors change. 2 Bark beetles play critical roles in coniferous forest dynamics in western North America. Among these insects, Dendroctonus rhizophagus Thomas and Bright, which occurs in the Sierra Madre Occidental in Mexico, is unique in that it attacks only immature trees (Pinus spp.) and therefore represents a threat to forest regeneration. We developed current habitat distribution models for D. rhizophagus and its Pinus hosts and projected these to future climate scenarios. 3 Predicted suitable habitat of D. rhizophagus currently covers approximately 119 000 km2 of which approximately 11% is occupied, and overlap with suitable habitat for all Pinus hosts exceeds 99.5%. Some suitable habitat occurs isolated from known D. rhizophagus occurrences in Mexico and the south-western U.S.A. 4 Habitat distribution models were projected to four potential climate scenarios for the period 2040–2060 and this predicted the gains and losses of suitable D. rhizophagus habitat throughout the region. Areas of north-western Mexico maintain large areas of suitable D. rhizophagus and Pinus host habitat in all scenarios. Dispersal to isolated areas of D. rhizophagus habitat appears unlikely. 5 The results of the present study can be used to target D. rhizophagus monitoring and management activities and may serve as a model for the management of other invasive species.

    Keywords: curculionidae, dendroctonus rhizophagus, madrean archipelago, niche model, scolytinae, sierra madre oriental

  • Vega-Ramírez, M., Moreno-Lafont, M., Valenzuela-Garza, R., Cervantes-Olivares, R., Aller-Gancedo, J., Fregeneda-Grandes, J., Damas-Aguilar, J., García-Flores, V., López-Santiago, R.

    New records of Saprolegniaceae isolated from rainbow trout, from their eggs, and water in a fish farm from the State of México

    (Journal name unavailable from Mendeley API. To be updated soon...)

    Ten species of the family Saprolegniaceae were isolated from the fish farm “El Zarco”, State of México, obtained from samples of influent and effluent water of the farm and from infected eggs and individual fish of rainbow trout. Two species belong to the genus Achlya and 8 to Saprolegnia. Saprolegnia ferax is recorded for the first time for the State of México. Achlya ambisexualis, A. heterosexualis, S. australis, S. diclinous, S. glomerata, S. parasitica, S. terrestris, S. uliginosa and S. unispora are cited for the first time from Mexico. Key

    Keywords: Achlya, Cucumis melo, Saprolegnia, Saprolegniales, saprolegniasis

  • Cuervo-Robayo, A., Monroy-Vilchis, O.

    Distribución potencial del jaguar Panthera onca (Carnivora: Felidae) en Guerrero, México: persistencia de zonas para su conservación

    (Journal name unavailable from Mendeley API. To be updated soon...)

    Studies about the permanence of natural protected areas are important, because they contribute to the promotion of the conservation target and to optimize economical and human resources of specific areas. Although there are no natural protected areas in Guerrero, it has suitable habitat for the jaguar, a common species used for planning and management of conservation areas. Since, there is actual evidence that environmental and anthropogenic variables may modify vertebrate species distribution with time, in this study we predicted the potential distribution of Panthera onca using MaxEnt for this Southeastern region. In addition, we made a projection considering the effect of a moderate climate change scenario, to evaluate the stability of the conservation area for a period of 24 years. Furthermore, we applied three threat scenarios for the actual prediction to define conservation priorities areas. In our results, we have found that 18 361Km2 (29%) of this state has a permanent suitable habitat for jaguar conservation in the Sierra Madre del Sur and Pacific coast, with a possible loss of 2 000km2 in 24 years. This habitat is characterized by a 56% of temperate forest (mainly conifers and hardwoods 34%), and 35% of tropical deciduous forest. With the projections, the Southeastern region resulted with the higher anthropogenic impacts, while at the same time, an area of 7 900km2 in the Central-Western state was determined as a priority for conservation. To assure jaguar conservation, we propose the inclusion of this new conservation area, which is located in the Sierra Madre del Sur, with which we may potentially preserve other 250 species of threatened vertebrates. This way, the suggested habitat conservation may represent a local effort in Guerrero and will strengthen the biological corridor network for P. onca protection in Latin America.

    Keywords: áreas naturales protegidas, Guerrero, MaxEnt, natural protected areas, Panthera onca

  • Delfín-Alfonso, C., López-gonzález, C., Equihua, M., Alejandro, C.

    Potential distribution of American black bears in northwest Mexico and implications for their conservation

    Ursus 23(1) 65-77.

    Defining areas of potential distribution for large carnivores is a critical step for generating conservation strategies. Ecological niche modelling is an important tool for identifying potential areas for conservation of carnivores, such as American black bears (Ursus americanus) in the Sierra Madre Occidental (SMOcc) and the Sky Islands (SI) region of Northwest Mexico. Our objective was to define areas and environmental factors that influence bear distribution and understand the causes of their absence. We used GARP (genetic algorithm for rule-set prediction) to define the potential area of distribution using historical and current records of black bear (n 5 582) and 23 bioclimatic and physical variables. We obtained a consensus model with a high probability of occurrence and power prediction representing 80% of the SMOcc (221,078 km2), including the SI region (Sonora and Chihuahua deserts). The ecological dimensions of the model include temperate dry and mixed forest, low rainfall, low temperatures, and elevation above 1,500 m, with considerable slope variation. Information provided by residents of Aguascalientes, Chihuahua, Durango, and Zacatecas indicate that the species was extirpated in central and southwest Durango and Zacatecas about 50 years ago, coinciding with the use of 1080 poison (sodium fluoroacetate) to eradicate livestock predators, combined with habitat loss, fragmentation, and excessive hunting in the region. These factors precipitated the regional extirpation of the species. Areas such as those we have identified may be important sites for the reintroduction of black bears.

    Keywords: american black bear, distribution, ecological niche, mexico, sierra madre occidental, sky island

  • González-Salazar, C., Stephens, C.

    Constructing Ecological Networks: A Tool to Infer Risk of Transmission and Dispersal of Leishmaniasis

    (Journal name unavailable from Mendeley API. To be updated soon...)

    We extend a recently developed method for constructing ecological networks to infer potential biotic interactions between species and to also include environmental factors, in particular land cover, thus permitting a simultaneous analysis of the interaction between environment and species distribution as well as inter-species interactions. We apply the method to the transmission and dispersal of leishmaniasis in Mexico. We find that the most important potential vectors and reservoirs can be classified into assemblages associated with different types of habitat. This in turn can be used to understand and map potential transmission risk, as well as to construct risk scenarios for the dispersal of disease from one geographical region to another.

    Keywords: data, distribution models, ecological network, habitat transformation, leishmaniasis, mining, risk factors, species