Fabian Rodriguez | Universidad de Guadalajara (original) (raw)

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Papers by Fabian Rodriguez

Plants, 2021

Cucurbita foetidissima and C. radicans are scarcely studied wild pumpkin species that grow in ari... more Cucurbita foetidissima and C. radicans are scarcely studied wild pumpkin species that grow in arid and semi-arid areas of Mexico and the United States. This study describes the morphological, proximal composition, metabolic finger-prints and seed protein profiles of C. foetidissima and C. radicans fruits collected in the wild during a one-year period in different locations of central-western Mexico. The results obtained complement the limited information concerning the fruit composition of C. foetidissima and greatly expand information in this respect regarding C. radicans. Morphology and proximal composition of their fruits varied significantly. Different metabolic fingerprints and seed protein profiles were detected between them and also with the chemical composition of domesticated Cucurbita fruits. The neutral lipids in seed, pulp and peels were rich in wax content and in unsaturated compounds, probably carotenoids and tocopherols, in addition to tri-, di- and mono-acylglycerols...

Biodiversity Data Journal, 2020

For more than 10 years (2007-2018), the benthic macroinvertebrates of Bahía de Chamela (Mexican P... more For more than 10 years (2007-2018), the benthic macroinvertebrates of Bahía de Chamela (Mexican Pacific) were sampled at 31 sites (0-25 m depth). A total of 308 species of the five main classes of benthic molluscs were obtained (106 bivalves, 185 gastropods, 13 polyplacophorans, two scaphopods and two cephalopods). This is a significant increase in the number of species (246 new records) compared to the 62 species previously recorded more than 10 years ago. The distribution in the 31 localities of the bay is given for the first time for most of the species, together with information on its ecological rarity (incidence in the samples). Two families of bivalves (Veneridae and Mytilidae) and three families of gastropods (Calyptraeidae, Muricidae and Collumbellidae) comprised ~ 30% of all species. Ecological rarity was evident with 45 families (45.0%) with only one species and 178 species (57.8%) collected in one site and 67 (21.8%) in two sites. The molluscs of Bahía de Chamela represe...

Diversity, 2022

Many crustacean species are obligate associates of pocilloporid corals, where they feed, reproduc... more Many crustacean species are obligate associates of pocilloporid corals, where they feed, reproduce, and find shelter. However, these coral-associated crustaceans have been poorly studied in the eastern tropical Pacific. Determining the crustacean richness and taxonomic distinctness could help in comparing different coral reefs and the potential effects of degradation. This study evaluated the spatio–temporal variation of the taxonomic diversity and distinctness of coral-associated crustaceans in four ecosystems of the Central Mexican Pacific (CMP) with different conditions and coral cover. In all ecosystems, 48 quadrants were sampled during the summer and winter for two years. A total of 12,647 individuals belonging to 88 species, 43 genera, and 21 families were recorded. The sampling effort yielded 79.6% of the expected species richness in the study area. Species rarity had 19% singletons, 4% doubletons, 22% unique, and 9% duplicate species; two species represented new records for ...

… marinas, 2011

... 3 Laboratorio de Ecosistemas Marinos y Acuicultura (LEMA), Departamento de Ecología, CUCBA, U... more ... 3 Laboratorio de Ecosistemas Marinos y Acuicultura (LEMA), Departamento de Ecología, CUCBA, Universidad de Guadalajara, Carretera Guadalajara–Nogales Km 15.5, AP ... en influir sobre la composición local de las especies y la diversidad en peces y corales: (a) el área del ...

Scientia Marina, 2017

The Mexican Central Pacific is located in a zone of oceanographic transition between two biogeogr... more The Mexican Central Pacific is located in a zone of oceanographic transition between two biogeographic provinces with particular conditions that affect the associated fauna. The objective of this study was to evaluate the variation of hermatypic coral assemblages in this region and to determine their relationship with the heterogeneity of the benthonic habitat and spatial variables. A total of 156 transects were carried out at 41 sites in the years 2010 and 2011. The sampling effort returned 96.7% of the coral richness expected for the area, with a total of 15 species recorded. The results showed that richness, diversity and cover of corals varied only at the site and state scales. However, the composition and coverage of all coral species, as well as the benthonic habitat structure, differed significantly across the study scales (i.e. sites, zones and states). Canonical redundancy analysis showed that variation in the richness, diversity and assemblages of corals was explained by t...

Scientia Marina, 2016

Clipperton Atoll, one of the most isolated coral reefs worldwide, is of great scientific interest... more Clipperton Atoll, one of the most isolated coral reefs worldwide, is of great scientific interest due to its geomorphology and high levels of endemism. This study explored the reef fish assemblage structure of Clipperton Atoll and its relationship with live coral cover. Nine stations were sampled at three sites and three depths (6, 12 and 20 m) around the reef, measuring fish species richness and biomass and hermatypic coral cover (at genus level). We evaluated variation in species richness, biomass and diversity of fish assemblages among sites and depths, as well as the relationship between the entire fish assemblage composition and live coral cover. The results showed that species richness and biomass were similar among sites, but differed across depths, increasing with depth. In contrast, diversity differed among sites but not among depths. Multivariate analyses indicated that fish assemblage composition differed among sites and depths in relation to changes in cover of coral of ...

Environmental Management, 2013

Hydrobiologia, 2015

We analyzed the trophic functioning of two Caribbean coral reefs with different disturbances, com... more We analyzed the trophic functioning of two Caribbean coral reefs with different disturbances, comparing their biomass flows, ecosystem development, and resilience. Cayos Cochinos is a protected reef impacted by tourism, artisanal fisheries, and continental river discharges, while Media Luna is an isolated reef located near to a lobster industrial fishery zone. Ecopath models were built to (1) estimate the ecosystem status-related properties; (2) evaluate the system recovery time; and (3) assess the fishery effects on species and functional groups. Our results indicate that the biomass of both systems is dominated by macroalgae (>75%), mainly at Cayos Cochinos that exhibit greater total system throughput. We show that the harvest of herbivores and coastal eutrophication causes increase in macroalgal biomass. The Media Luna ecosystem appears to be more mature and organized (Pp/R = 1.6, FCI = 6.95%), but is also less resistant to fishery impact (SRT = 10.79 and 21.72 years using bottom-up and top-down flow-control mechanisms, respectively) than Cayos Cochinos (SRT = 9.30 and 16.89). The benthic autotrophs, phytoplankton, and soft corals are the most important functional groups to the trophic functioning, resilience, and development of these ecosystems. However, fishery simulations also show that snappers and spiny lobster reduce the resilience of Cayos Cochinos and Media Luna, respectively.

Ecological and eco-social network models were constructed with different levels of complexity in ... more Ecological and eco-social network models were constructed with different levels of complexity in order to represent and evaluate management strategies for controlling the alien species Pterois volitans in Chinchorro bank (Mexican Caribbean). Levins´s loop analysis was used as a methodological framework for assessing the local stability (considered as a component of sustainability) of the modeled management interventions represented by various scenarios. The results provided by models of different complexity (models 1 through 4) showed that a reduction of coral species cover would drive the system to unstable states. In the absence of the alien lionfish, the simultaneous fishing of large benthic epifaunal species, adult herbivorous fish and adult carnivorous fish could be sustainable only if the coral species present high levels of cover (models 2 and 3). Once the lionfish is added to the simulations (models 4 and 5), the analysis suggests that although the exploitation or removal of...