Las Delicias Research Articles

Integrated biomarker responses in wild populations of the intertidal sea anemone Bunodosoma zamponii living under different anthropogenic pressures.

Bunodosoma zamponii is the most abundant anemone in Mar del Plata (Buenos Aires, Argentina). Given that the presence of persistent organic pollutants (organochlorine pesticides and PCBs) and the organophosphate pesticide chlorpyrifos has recently been reported in this species, two wild populations living under different anthropogenic pressures were studied and compared regarding basic aspects of their ecology and physiological response to oxidative stress. A population from an impacted site (Las Delicias, LD) and another from a reference site (Punta Cantera, PC) were monitored seasonally (spring, summer, autumn, and winter), for one year. Anemones from PC were larger and more abundant than those from LD for most sampling periods. During winter, glutathione-S-transferase and catalase activities were higher in LD. Moreover, protein content and antioxidant defenses were higher in anemones from PC during winter as well. Taking into account their ecology (size and abundance) and biomarker responses, the population from PC was comparatively healthier. Furthermore, such differences are in agreement with recent studies indicating a higher concentration of pollutants in anemones from LD (specially during the winter sampling). In this sense, considering that B. zamponii can bioaccumulate the aforementioned pollutants, its resilience to their presence, and the fact that biomarker response differed between sites, this species can be regarded as a proper sentinel species of environmental pollution. Overall, this anemone seems to be a good bioindicator to be considered in future biomonitoring and ecotoxicological studies.

Analysis of the feeding ecology of the sea anemone Bunodosoma zamponii: populations under differential anthropogenic pressures

The feeding ecology of two populations of the sea anemone Bunodosoma zamponii Gomes, Schama & Solé-Cava 2012 living under different anthropogenic pressures in the coast of Mar del Plata (Buenos Aires, Argentina) was studied. One population was located in Las Delicias (LD; an impacted site adjacent to a wastewater treatment plant) and another in Punta Cantera (PC; the reference site). Both populations of sea anemones were monitored for 2 years and their trophic ecology was analyzed. The mytilid Brachidontes rodriguezii (d'Orbigny, 1842) was the main item found throughout all seasons. Prey diversity was highest in PC during autumn and lowest during winter for both sites. Prey abundance was lower in LD during autumn and summer. Additionally, prey items were larger in PC during autumn, winter, and summer. Item capture probability in autumn was significantly lower in LD. Altogether, the results indicate that the diet of Bunodosoma zamponii differed significantly between sites and such differences varied throughout the year. Most of the differences occurred during autumn and winter, which correspond with a greater concentration of organochlorine pesticides, chlorpyrifos, and polychlorinated biphenyls in anemones from LD registered in previous studies. Overall, this study provides significant knowledge on the feeding ecology of Bunodosoma zamponii that complements the existing information and will provide meaningful insight into the current status of this anemone's populations.

자유의 주체와 주인의 성별: 19세기 초 쿠바 노예 서사에 재현된 권력과 젠더 담론

This study analyzes the concept of modern subjectivity focusing on the gender representation of female masters in Juan Francisco Manzano''s Autobiografía (1836), Anselmo Suárez y Romero''s Francisco, El ingenio o las Delicias del Campo (1839) and Félix Tanco y Bosmenie’s Petrona y Rosalía (1838). The narrators of these texts set the cause of the harsh and violent treatment of slaves by upper-class women as lack of rational ability and instability. Through this engendered characterization of masters, these texts internalize the modern subject as a specific man imagined by each narrator. In this regard, this analysis reveals how the modern subject in each text is constituted through the multifaceted characterization of female masters.

Occurrence of polychlorinated biphenyls (PCBs) in the sea anemone Bunodosoma zamponii, sediments and seawater from the southwestern Atlantic.

Polychlorinated biphenyls (PCBs) are persistent and bioaccumulable organic compounds. The occurrence of PCBs was assessed in two populations of the intertidal sea anemone Bunodosoma zamponii living under different anthropogenic strains. One location was in vicinity to a wastewater plant (Las Delicias, LD), and the other was a preserved location chosen as a reference site (Punta Cantera, PC). Anemone populations were sampled 4 times (spring, summer, autumn and winter) throughout a year, in addition to seawater and sediment from those areas. PCB loadings ranged from 2.89 to 79.41 ng L-1 in seawatersamples and from 0.07 to 6.61 ng g-1 dry weight in sedimentsamples. Total PCB levels ranged from 0.22 to 14.94 and 2.79 to 24.69 ng g-1 wet weight in anemonesfrom PC and LD, respectively. PCBs concentrations in anemonesfrom LD were significantly greater than PC during spring, summer and winter. The congeners 18 and 44 prevailed in seawatersamples, 44 and 52 in sedimentand 18 and 132+153 in anemones. Redundancy analysis integrated PCB levels from all matrixes and bolstered contrast between sampling sites. Seasonality was also a relevant factor since during winter PCB loading was greater in sedimentand anemone samples, coincident with the rainiest season. Disparity between sites could be due to LD's proximity to the wastewater plant, effect of littoral drift direction and/or asymmetries in anemonesphysiological condition.

Organochlorine pesticides and chlorpyrifos in the sea anemone Bunodosoma zamponii (Actiniaria: Actiniidae) from Argentina's southeastern coast

Temporal and spatial distribution of organochlorine pesticides (OCPs) and the organophosphate pesticide chlorpyrifos, one of the main insecticides used in Argentina, was evaluated in two populations of the sea anemone Bunodosoma zamponii living under different anthropological stressors: Las Delicias (LD) adjacent to a wastewater plant, and Punta Cantera (PC) a reference site. Pesticides were analyzed throughout the year in water, sediments and whole organisms. Chlorpyrifos represented 50% of the total pesticide found in water samples during winter. HCHs and drins were predominant in sediment samples, mainly in LD. Total pesticide concentration in anemones from LD was higher than those from PC during winter (mainly associated with HCHs, endosulfans, DDTs and chlorpyrifos levels), coincident with the main period of effluent discharge to the coast after pesticide applications and also the rainiest season. Dissimilarities among anemones populations could stem from a differential input of pesticides in each site and/or a contrasting physiological status of the populations.

Placas metálicas decorativas de cinturones halladas en contextos funerarios tardoantiguos de las provincias de Granada y Málaga

This study focuses on the study of a series of metal plates classified as clothing elements that were found in late ancient antique funerary contexts in the province of Granada and Malaga. In the investigation following necropolis ate analysed: Las Delicias (Granada,) La Calera and Villanueva del Rosario (Málaga). This study is constructed from a typological perspective, but comparisons will also be made with other decorative metallic elements from the peninsular territory and outside of it. Chronologically, these decorative plates that would be part of the belts have been ascribed to the 5th century AD, because at other sites they are associated with funerary contexts from this chronology. However, it is worth noting that some were found together with materials of later chronology, with a datation that oscillates between the 6th and 7th centuries AD. Finally, it is worth mentioning that in this study two belt clips found in one of the necropolis will be included, and that their decorative pattern is tipologically similar to some of the aforementioned plates.

Early Mississippian precollisional, peri-Gondwanan volcanic arc in NE-Mexico: Aserradero Rhyolite from Ciudad Victoria, Tamaulipas

The study of the pre-Mesozoic geological history of NE Mexico offers the opportunity to reconstruct the processes that occurred at the NW margin of Gondwana. The Huizachal–Peregrina Anticlinorium, which is located west of Ciudad Victoria (Tamaulipas) is a regional structure produced during the Cretaceous–Palaeogene Laramide Orogeny. Its eroded core exposes Precambrian and Palaeozoic units that together comprise the Sierra Madre Oriental basement. These units are the Neoproterozoic metamorphic Novillo Complex, the Ordovician Peregrina Tonalite, the metamorphic Pennsylvanian Granjeno Complex, and the sedimentary Silurian–Permian Tamatan Group. Aserradero Rhyolite belongs to the Tamatan Group, occurring between the siliciclastic deposits of the Early Mississippian Vicente Guerrero and the Pennsylvanian Del Monte Formations. The studied rhyolites display geochemical characteristics corresponding to high-K, low-Sr, and S-type granitoid rocks that may have been produced by upper-crustal anatexis from a source similar to that of the Novillo Complex. New LA-ICP-MS U–Pb geochronological analysis on zircons separated from the Aserradero Rhyolite yielded Early to Middle Mississippian crystallisation ages of 347.8 ± 2.7 Ma and 340.7 ± 3.6 Ma, confirming that this acidic unit is in its original stratigraphic position despite the pervasive deformation of the Tamatan Group. Based on the correlation with other Carboniferous–Early Permian magmatic complexes in Mexico and Central America, it is suggested that the Aserradero Rhyolite represents an early stage of a precollisional Carboniferous–Permian peri-Gondwanan arc, occurring also in the Las Delicias, Oaxaquia, the Acatlan Complex, the Maya Block, as well as in the buried crystalline basement along the Western Gulf of Mexico. The assembly of the Precambrian and Palaeozoic basement units from the Huizachal–Peregrina Anticlinorium were integrated with the Ciudad Victoria Block, which was dismembered from Oaxaquia and their peripheral units during the Upper-Jurassic Gulf of Mexico opening.

Agroforestry systems of a Zapotec community in the Northern Sierra of Oaxaca, Mexico

Background: Agroforestry systems have cultural, economic, social, and biodiversity conservation significance and are essential for the subsistence of communities.
 Questions: Is there a difference in the richness, management and use of useful plants present in the agroforestry systems (home gardens, coffee plantations, and milpa)? What is the influence of sociodemographic factors on the distribution of traditional knowledge regarding plants of these systems?
 Site and years of study: Las Delicias, municipality of Juquila Vijanos, Sierra Norte of Oaxaca, Mexico, from January 2016 to May 2018.
 Methods: Visits to three agroforestry systems and semistructured interviews with 30 families to learn how they use the plants and to calculate the use value (UV) for each species. The similarity of floristic composition between agroforestry systems and the influence of sociodemographic factors (age, gender, schooling, economic activity and language) in the traditional plant knowledge was evaluated. The methods used were chi squared and proportions analyses, and a generalized linear analysis with Poisson distribution.
 Results: The three agroforestry systems consisted of 211 of useful plants; home gardens and coffee plantations had a greater similarity in floristic composition; the dissimilarity of the milpa agroecosystem is related to seasonality. The plants with higher UVs were those with multiple uses, and are found mainly in coffee plantations. Production in these spaces is complemented to satisfy the needs of the inhabitants. Gender and economic activity are factors that influence the distribution of traditional knowledge.
 Conclusion: Agroforestry systems provide a species richness differentiated for specific purposes but complementary to each other.

Olive tree varieties cultivated for the great Baetican oil trade between the 1st and the 4th centuries ad: morphometric analysis of olive stones from Las Delicias (Ecija, Province of Seville, Spain)

During the excavations of a Roman amphora workshop and oil mill of the 1st–4th century ad in Las Delicias, Genil valley, Ecija, Spain, large quantities of charred olive stones were recovered. The assemblages discovered in the pottery kilns demonstrate the use as fuel of olive residues, which were obtained from the extraction of the oil in the nearby mill. The abundance of material offered the opportunity to study the infra-specific diversity of the olives growing in the province of Baetica, which is known to have been an important oil-producing region during the Roman Empire. In total, 335 intact charred archaeological olive stones were analysed using geometric morphometry (outline analysis) and compared with several current morphotypes. These have been identified within a set of dimensional references of the stones established from the morphometric study of current varieties and wild populations, including genuinely wild and feral forms of olives, from various areas around the Mediterranean. The morphotype mainly found in wild populations was widely represented among the olive stones from Las Delicias. A large proportion of the archaeological stones were however close to various domesticated forms, which reflect the history of the region and of its varied cultural Mediterranean influences, Punic, Greek and Roman. Moreover, intermediate forms between two distinct morphotypes were identified. They suggest that hybrid olive trees derived from crosses among domesticated varieties and also between domesticated and wild forms, were grown in Las Delicias. In the Genil valley, Roman olive cultivation was based on a set of local olives which included wild and domesticated varieties from various origins, and whose diversity arose from breeding for improvement of varieties.

Leño y corteza de Prosopis alba Griseb., algarrobo blanco, Mimosaceae, en relación con algunas magnitudes dendrométricas

Prosopis alba Griseb., is one of the most important Argentinean Mimosaceae. With a great distribution area, it is a common component in the Chaco Forest. Prosopis alba, Algarrobo blanco, is one of the Argentina's legumes of more economic importance. The aims of this study are: to describe the wood and bark anatomy and tree ring pattern of Prosopis alba, to analyse tree ring evolution in relation to age and orientation, to characterise sapwood, heartwood and bark width, in relation to age, DBH (diameter at breast height) orientation, and height and to determine the main defects of the wood. The study was carried out in ten individuals from the following sites of Santiago del Estero, Argentina: Brea Pozo, San Martin Department; Las Delicias, Pellegrini Department and Sachayoj, Alberdi Department. Healthy, well formed trees, with more than 30 cm DBH were selected from the dominant-canopy. Wood samples were taken following the methodology of Helinska et al. The terminology by IAWA was used for wood descriptions, and the terminology by Roth in bark. Results obtained show that Prosopis alba has tree ring demarcated by terminal parenchyma (type 2 of Coster). Tree rings have a medium width of 4.05 mm (2.11-5.18), with a maxim between 29 and 32 years. Orientation had no influence on width. Sapwood in the trunk has a tree ring width (2-6), diminishing with age and height. The principal defect of the wood are the scars produced by fire which alter the pattern of growth. The deciduous bark is of the fibrous type, with longitudinal fissures. The thickness of total bark is 1.16 cm, the living bark 0.39 cm and rhytidome 0.74 cm. The bark increases with age and diminishes with DBH. The duraminization process begins between the years 3 to 6.

Geology and paleontology of the Permian beds near Las Delicias, Coahuila, Mexico

About 3,000 m of Permian strata near Las Delicias, southwestern Coahuila, Mexico, are divided into five informal units: Las Sardinas, El Tordillo, Palo Quemado, La Difunta, and La Colorada beds. The lithology and the ammonoid, brachiopod, and fusulinid biostratigraphy are described briefly. The age of the beds ranges from the Aktastinian through the Amarassian Stages (of Furnish). The major structural features are a large-scale synclinal fold and northeast-trending faulting. Major episodes in the geologic history are outlined.

Marshalljohnstonia, a New Genus (Asteraceae) with a Rosette-Shrub Growth Habit from Mexico

The new genus and species Marshalljohnstonia gypsophila (Asteraceae, Lactuceae, Ste phanomeriinae), from western Coahuila, Mexico, is a drought-deciduous gypsophile with isolateral erect leaves, thick coarse periderm, and xylem that combines traits considered characteristic of both xeromorphic and rosette-shrub habitats. From gross morphology it would appear to be related to Pinaropappus, but in cytological and palynological features it is similar to Lygodesmia and Stephanomeria. Its rosette-shrub growth form is interpreted as a derived feature similar to derivation of secondary woodiness in maritime habitats but in this instance in a xeric environment. During recent field work in the Chihuahuan Desert by Marshall C. Johnston, Thomas L. Wendt, and Fernando Chiang in connection with the Chihuahuan Desert Flora, Wendt found a new and distinctive shrubby member of the Lactuceae from gypsum deposits on the slopes of the Sierra de las Delicias in western Coahuila, Mexico. The plant has an assemblage of floral and vegetative characteristics that warrants its recognition as a new genus in subtribe Stephanomeriinae. Marshalljohnstonia Henrickson, gen. nov. A Pinaropappo fruticibus crassiramosis, phyllariis magis foliaceoris, receptaculis epaleaceis alveolatis, polline echinato lacunis abporalibus, acheniis erostratis, chromosomatum numero x = 9 differt; a Lygodesmia et Stephanomeria phyllariorum structura et ramificationum ordinatione differt. Coarsely branched, lactiferous shrubs, stems glabrous, erect to spreading; internodes short or elongate; periderm coarse, gray, deeply fissured. Leaves simple, alternate, fleshy, isolateral, mostly erect, tardily deciduous, rhombic to narrow elliptic, toothed or entire, scarious at the margin; petioles short to elongate, winged, the wings decurrent, axils tomentose. Heads solitary, erect, terminal, the peduncles leafy, involucral bracts unequal, imbricate, foliaceous, flat, -ovate-elliptical, acuminate-aristate, green; receptacle flattened, naked, strongly alveolate; flowers perfect, 10-18, corolla ligulate, five-toothed and -nerved, purple-pink, purple-striped over the nerves, sparsely pubescent abaxially; style branches elongate, subterete, stigmatic along the inner surface but without stigmatic lines; achenes cylindric, truncate at the apex, slightly fusiform and arcuate, with five equally spaced I I thank D. P. Dille, G. A. Fay, E. C. Jonas, M. C. Johnston, and J. Olson for the help in manuscript preparation and various phases of the research and A. S. Tornb for valuable discussions on relationships in the Stephanomeriinae. 2 Biology, California State University, Los Angeles CA 90032. This content downloaded from 207.46.13.21 on Tue, 27 Sep 2016 04:13:43 UTC All use subject to http://about.jstor.org/terms 170 SYSTEMATIC BOTANY [Volume 1

Geology and Paleontology of the Permian Area Northwest of Las Delicias, Southwestern Coahuila, Mexico. Robert E. King , Carl O. Dunbar , Preston E. Cloud Jr. , A. K. Miller

<i>Geology and Paleontology of the Permian Area Northwest of Las Delicias, Southwestern Coahuila, Mexico</i>. Robert E. King , Carl O. Dunbar , Preston E. Cloud Jr. , A. K. Miller

Part II. Geology of the mountains bordering the valleys of Acatita and Las Delicias.

Research Article| July 31, 1936 Part II. Geology of the mountains bordering the valleys of Acatita and Las Delicias. W. A. KELLY W. A. KELLY Search for other works by this author on: GSW Google Scholar GSA Bulletin (1936) 47 (7): 1009–1038. https://doi.org/10.1130/GSAB-47-1009 Article history received: 01 Jul 1934 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation W. A. KELLY; Part II. Geology of the mountains bordering the valleys of Acatita and Las Delicias.. GSA Bulletin 1936;; 47 (7): 1009–1038. doi: https://doi.org/10.1130/GSAB-47-1009 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract INTRODUCTIONTHE AREAThe area with which this paper is concerned is in the southwestern part of the state of Coahuila, Mexico (Fig. 1). It lies in the Mexican Plateau Division of the Basin and Range Province, and is characterized by dissected broad upland areas separated by plains of aggradation. The semi-arid climate has discouraged settlement and scientific investigation, and only a small part has been more than casually visited, although the area presents several highly interesting geological problems. Within its borders are the vestiges of the Jurassic-Neocomian landmass Llanoria, the position of which controlled sedimentation throughout the Cretaceous, and affected the structural trends of the mountains formed at the close of that period. The Paleozoic stratigraphy of the area records marine sedimentation, and a possible glacial period, followed by deformation and intrusion. It throws additional light on the position of the ancient landmass and its bordering geosyncline.PREVIOUS REPORTS . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.