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Journal articles on the topic 'Puerto Rico Agricultural Company'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

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1

Lazcano-Lara, Julio C., and James D. Ackerman. "Best in the company of nearby males: female success in the threatened cycad,Zamia portoricensis." PeerJ 6 (July 24, 2018): e5252. http://dx.doi.org/10.7717/peerj.5252.

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Variation in plant reproductive success is affected by ecological conditions including the proximity of potential mates. We address the hypothesis that spatial distribution of sexes affects female reproductive success (RS) in the dioecious cycad,Zamia portoricensis.Are the frequencies of males, operational sex ratios, and distances to the nearest mate associated with RS in females? We studied the spatial distribution of sexes in two populations in Puerto Rico and compared RS of target females with the number of males and operational sex ratios. Population structure suggests regular successful

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Ramírez, Alonso, Norman Maldonado-Benítez, Ashley Mariani-Ríos, and Javier Figueroa-Santiago. "Dragonflies and damselflies (Odonata) from Puerto Rico: a checklist with notes on distribution and habitat." PeerJ 8 (October 1, 2020): e9711. http://dx.doi.org/10.7717/peerj.9711.

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Background Conservation of tropical freshwater fauna requires a solid understanding of species biodiversity patterns. We provide an up to date annotated list of Odonata of Puerto Rico, which is based on current reports. The list is complemented with notes on the geographic and altitudinal distribution of this order on the island. We also compare current composition relative to early reports conducted when Puerto Rico was mostly an agricultural region. Methods We surveyed adult Odonata all over Puerto Rico with the aid of undergraduate students. Students were trained on capturing, preserving, a

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Aponte-García, Maribel, and Karen Orengo-Serra. "Building a Strategic Trade and Industrial Policy for Puerto Rico in the Context of Colonial Exclusion and Lack of a Development Strategy." Latin American Perspectives 47, no. 3 (2020): 30–48. http://dx.doi.org/10.1177/0094582x20911447.

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Given Puerto Rico’s colonial exclusion from Latin American and Caribbean regionalism and its ruling parties’ disregard for stimulating an industrial base of small and medium-sized local enterprises rather than U.S. multinational corporations, Puerto Rico needs to construct new pathways to inclusive socioeconomic development. One approach is articulating strategic and industrial policies to stimulate these enterprises from below by promoting value chains focused on exports or export potential. A proposed systematization draws on the experience gained in a project carried out under an agreement

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Heredia, Ermita Hernandez. "Organic soil amendments: Enhancing vegetable production & soil health in Puerto Rico." Open Access Government 39, no. 1 (2023): 482–83. http://dx.doi.org/10.56367/oag-039-10790.

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Organic soil amendments: Enhancing vegetable production & soil health in Puerto Rico Ermita Hernandez Heredia, Associate Professor from the University of Puerto Rico, details enhancing vegetable production and soil health in Puerto Rico in this organic soil amendments particular focus. Puerto Rico is an island with a population of over 3 million people, but it produces less than 15% of the food it consumes. The Puerto Rican food system is particularly vulnerable because of adverse climate change effects, such as the increase of extreme weather events and the dependence on importation. Agri

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Soto Velez, Ivette. "Puerto Rico 2.0: La comunicación turística en la era digital / Puerto Rico 2.0:Tourism Communication at the Digital Era." Revista Internacional de Ciencias Sociales 5, no. 1 (2016): 247–56. http://dx.doi.org/10.37467/gka-revsocial.v5.388.

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ABSTRACTIn a global scenario characterized by economic crisis, tourism could be seen as an opportunity for countries and cities to generate income, but it is necessary to promote tourism in innovative ways. Traditional media and social media have the task of bringing these destinations to tourists. According to Lopez, Del Fierro, Herrera and Diaz (2013) "Social networks provide amazing opportunities to reach more protection and universal coverage." (López, Del Fierro, and Díaz Herrera, page 1) .As people know the tourist destination, they will have desire to visit. This research aims to descri

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Cabrera-Asencio, Irma, and Elvia Meléndez-Ackerman. "INSECT VISITORS ON THE FLOWERS OF FOUR CULTIVARS OF MANGIFERA INDICA AT THE AGRICULTURAL EXPERIMENT SUBSTATION OF JUANA DIAZ, PUERTO RICO." Journal of Agriculture of the University of Puerto Rico 106, no. 2 (2023): 291–300. http://dx.doi.org/10.46429/jaupr.v106i2.21160.

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7

Susser, Ida. "Union Carbide and the Community Surrounding it: The Case of a Community in Puerto Rico." International Journal of Health Services 15, no. 4 (1985): 561–83. http://dx.doi.org/10.2190/8eyj-33ak-bhf2-gya4.

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Based on fieldwork in Puerto Rico, this article examines the views on health hazards of residents in a semi-rural community in relation to the influx of industrial development since the early 1970s. It is suggested that “folk” terminology and particular aspects of Puerto Rican culture are less significant in this instance than many studies in medical anthropology suggest. The focus is on the emergence of a protest movement concerned with health problems which community residents and workers attribute to a nearby Union Carbide factory. Residents of El Ingenio, Yabucoa, Puerto Rico, have brought

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8

Saavedra-Lugo, Janitza, and Bryan Hernandez-Aquino. "Determination of the Profile of the Agricultural Education Teachers of Puerto Rico Aimed at Identifying Needs to Establish a Professional Development Plan." Journal of Agricultural Education 66, no. 1 (2025): 25. https://doi.org/10.5032/jae.v66i1.2896.

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Educators face countless challenges in the 21st Century, reflecting consequences such as rapid changes in population, sociocultural dynamics, technology, and education. Among these challenges are the integration of emerging technologies, diversity and inclusion, and continuous professional development to stay ahead. To understand the current profile of agricultural education teachers working in the public schools of the Department of Education of Puerto Rico, this quantitative study aimed to describe the characteristics of teachers serving students in agriculture courses and to explore their e

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CHINEA, JORGE L. "Confronting the Crisis of the Slave-Based Plantation System in Puerto Rico: Bureaucratic Proposals for Agricultural Modernisation, Diversification and Free Labour, c. 1846–1852." Journal of Latin American Studies 42, no. 1 (2010): 121–54. http://dx.doi.org/10.1017/s0022216x10000076.

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AbstractBy the late 1820s, Puerto Rico and Cuba had become Spain's only remaining colonies in the Americas and its major source of colonial returns. A decade later, however, the slave-based plantation system in Puerto Rico was beginning to show signs of stagnation due to the convergence of a number of domestic and international forces. In the late 1840s the Iberian colonial bureaucracy initiated a series of proposals to stimulate Puerto Rico's transformation into an agriculturally modern, diversified, free-labour economy. This initiative failed due to an adverse economic environment, administr

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Kleinschmidt, Christian. "Sprungbrett für den US-Markt." Zeitschrift für Unternehmensgeschichte 67, no. 1 (2022): 1–20. http://dx.doi.org/10.1515/zug-2021-0013.

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Abstract In the context of the internationalisation and globalisation of the economy, special economic zones are playing an increasingly important role. The economic-historical evaluation of these special economic zones is controversially discussed and fluctuates between a «neo-colonialist exploitation of the Global South» based on low wages and poor working conditions as well as the exploitation of tax havens on the one hand and the emphasis on economic development potentials in these countries on the other. Using the non-representative corporate history case study of the medical technology m

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Turvey, S. T., J. R. Oliver, Y. M. Narganes Storde, and P. Rye. "Late Holocene extinction of Puerto Rican native land mammals." Biology Letters 3, no. 2 (2007): 193–96. http://dx.doi.org/10.1098/rsbl.2006.0585.

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West Indian land mammals have suffered the most severe extinctions of any Holocene mammal faunas. However, ‘last-occurrence’ dates based on radiometric or robust stratigraphic data remain unavailable for most West Indian species, making it impossible to identify factors responsible for these extinctions. Here, we present new radiometric dates from archaeological and palaeontological sites on Puerto Rico, the only Greater Antillean island to have lost all native land mammals. Although it has been suggested that these species died out earlier than other West Indian mammals, we demonstrate that P

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W. Myster, Randall. "Regeneration filters in post-agricultural fields of Puerto Rico and Ecuador." Plant Ecology (formerly Vegetatio) 172, no. 2 (2004): 199–209. http://dx.doi.org/10.1023/b:vege.0000026338.57498.40.

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Maynard, P. N., G. W. Elmstrom, L. Wessel-Beaver, and T. G. McCollum. "IMPROVEMENT AND CULTURE OF CALABAZA [CUCURBITA MOSCHATA (DUCHESNE), POIR.]." HortScience 27, no. 11 (1992): 1172d—1172. http://dx.doi.org/10.21273/hortsci.27.11.1172d.

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Calabaza is a pumpkin-like fruit that is grown throughout the tropics and subtropics. In the Caribbean “calabaza” is used in soups and other traditional dishes. In Puerto Rico, the 1987-88 calabaza crop was worth $8 million and the value of the crop in Florida is estimated to exceed $5 million. Mainland production of tropical calabaza types of C. moschata is limited largely to Florida where it is used mostly by those of Cuban descent. Despite the popularity and commercial significance of calabaza, little effort has been directed toward the study of cultural practices or varietal improvement. O

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Rosario, Lumariz Hernandez, Juan O. Rodríguez Padilla, Desiree Ramos Martínez, et al. "DNA Barcoding of the Solanaceae Family in Puerto Rico Including Endangered and Endemic Species." Journal of the American Society for Horticultural Science 144, no. 5 (2019): 363–74. http://dx.doi.org/10.21273/jashs04735-19.

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The Solanaceae family is one of the largest and well-distributed plant families in the world. It contains species of agricultural and economical importance, such as Solanum tuberosum, Solanum melongena, Solanum lycopersicum, Nicotiana tabacum, and Capsicum annuum. In Puerto Rico, there are ≈46 species of Solanaceae of which six are endemic: Brunfelsia densifolia, Brunfelsia lactea, Brunfelsia portoricensis, Goetzea elegans, Solanum ensifolium, and Solanum woodburyi. Our objective was to use DNA barcoding to identify the Solanaceae species in Puerto Rico, including the endemics, and to assess t

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Álvarez-Berríos, Nora L., Sandra Soto-Bayó, Eva Holupchinski, Stephen J. Fain, and William A. Gould. "Correlating drought conservation practices and drought vulnerability in a tropical agricultural system." Renewable Agriculture and Food Systems 33, no. 3 (2018): 279–91. http://dx.doi.org/10.1017/s174217051800011x.

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AbstractRecent droughts in Puerto Rico and throughout the Caribbean have emphasized the region's agricultural vulnerability to this hazard and the increasing need for adaptation mechanisms to support sustainable production. In this study, we assessed the geographic extent of agricultural conservation practices incentivized by US Department of Agriculture Natural Resources Conservation Service (NRCS) and evaluated their large-scale contribution to drought adaptability. We identified concentrations of drought-related practices (e.g. cover crops, ponds) applied between 2000 and 2016. Using inform

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Cabrera, Fedor F., Erik R. Gamarra, Tiffany E. Garcia, et al. "Opioid distribution trends (2006–2017) in the US Territories." PeerJ 7 (January 15, 2019): e6272. http://dx.doi.org/10.7717/peerj.6272.

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BackgroundThe US mainland is experiencing an epidemic of opioid overdoses. Unfortunately, the US Territories (Guam, Puerto Rico, and the Virgin Islands) have often been overlooked in opioid pharmacoepidemiology research. This study examined common prescription opioids over the last decade.MethodsThe United States Drug Enforcement Administration’s Automation of Reports and Consolidated Orders System (ARCOS) was used to report on ten medical opioids: buprenorphine, codeine, fentanyl, hydrocodone, hydromorphone, meperidine, methadone, morphine, oxycodone, and oxymorphone, by weight from 2006 to 2

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del Mar López, Tania, T. Mitchell Aide, and John R. Thomlinson. "Urban Expansion and the Loss of Prime Agricultural Lands in Puerto Rico." AMBIO: A Journal of the Human Environment 30, no. 1 (2001): 49–54. http://dx.doi.org/10.1579/0044-7447-30.1.49.

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Serrato-Diaz, Luz M., Lorena L. Simbaña-Carrera, Yesenia Vélez-Negrón, and Lydia I. Rivera-Vargas. "Detection and incidence of pineapple heart rot disease caused by Phytophthora nicotianae in commercial farms of Puerto Rico." Journal of Agriculture of the University of Puerto Rico 106, no. 2 (2023): 233–46. http://dx.doi.org/10.46429/jaupr.v106i2.21155.

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Pineapple heart rot disease (PHRD) caused by Phytophthora spp. is one of the most important diseases of pineapple. This disease is characterized by soft rot and water-soaked lesions. In severe cases plant mortality is 100%. During a one-year survey, conducted from March 2018 to March 2019, a total of 29 pineapple hectares were evaluated from five commercial pineapple fields located in the Puerto Rican municipalities of Guánica, Lajas, Manatí and Santa Isabel, and at the Agricultural Experiment Substation of the University of Puerto Rico in Isabela. Symptoms of PHRD were observed in all fields

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Abelleira-Martínez, Oscar J. "Geographic distribution and spatial attributes of African tulip tree forests in north-central Puerto Rico: Implications forsocial-ecological resilience." Journal of Agriculture of the University of Puerto Rico 103, no. 1 (2019): 1–25. http://dx.doi.org/10.46429/jaupr.v103i1.17898.

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Agricultural abandonment resulted in the expansion of forests dominated by invasive tree species that were introduced throughout Puerto Rico. These novel forests are increasingly common worldwide but little is known about the drivers and consequences of their expansion. This study describes the geographic distribution and spatial attributes of novel forests dominated by the African tulip tree, Spathodea campanuata Beauv., in north-central Puerto Rico. I used aerial photography to map Spathodea forests, determined their distribution by geological substrate, soil type and previous history, and e

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Cary, Adelaide. "Book Review: The Drug Company Next Door: Pollution, Jobs, and Community Health in Puerto Rico." Practicing Anthropology 39, no. 1 (2017): 23. http://dx.doi.org/10.17730/0888-4552.39.1.23.

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Blackburn, David C., Rachel M. Keeffe, María C. Vallejo-Pareja, and Jorge Vélez-Juarbe. "The earliest record of Caribbean frogs: a fossil coquí from Puerto Rico." Biology Letters 16, no. 4 (2020): 20190947. http://dx.doi.org/10.1098/rsbl.2019.0947.

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The nearly 200 species of direct-developing frogs in the genus Eleutherodactylus (the Caribbean landfrogs, which include the coquís) comprise an important lineage for understanding the evolution and historical biogeography of the Caribbean. Time-calibrated molecular phylogenies provide indirect evidence for the processes that shaped the modern anuran fauna, but there is little direct evidence from the fossil record of Caribbean frogs about their distributions in the past. We report a distal humerus of a frog from the Oligocene (approx. 29 Ma) of Puerto Rico that represents the earliest known f

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Fierro-Calderón, Eliana, and Karolina Fierro-Calderón. "First record of Psittacara erythrogenys (Psittacidae) in Colombia." Caldasia 42, no. 2 (2020): 347–49. http://dx.doi.org/10.15446/caldasia.v42n2.78897.

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The red-masked parakeet Psittacara erythrogenys was originally distributed in the forests of Ecuador and northwestern Peru, mainly below 1500 m of elevation. Due to pet trade, this parakeet has current stable breeding populations in the United States, Spain, Chile, and Puerto Rico. We describe the first record of the species in Colombia in March 2018, as well as other observations from the city of Santiago de Cali.

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Santiago-Vera, Josue, and Alonso Ramírez. "MEIOFAUNA IN TROPICAL MONTANE STREAMS: BIOTIC AND ABIOTIC FACTORS REGULATING COMMUNITIES." Acta Biológica Colombiana 28, no. 2 (2023): 229–38. http://dx.doi.org/10.15446/abc.v28n2.103379.

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Meiofauna is a group of heterotrophic organisms smaller than macroinvertebrates but larger than microfauna and characterized by groups such as testate amoebae, ciliates, and nematodes. They are a link between bacteria and resources and macroinvertebrates. However, tropical meiofauna is poorly studied; thus, our goal was to characterize meiofaunal community composition and abundance and assess potential environmental variables controlling these community dynamics. Monthly samplings of meiofauna were conducted for eight months in Quebrada Prieta, El Yunque National Forest, Puerto Rico. Sampling

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McCook, Stuart. "Promoting the “Practical”: Science and Agricultural Modernization in Puerto Rico and Colombia, 1920–1940." Agricultural History 75, no. 1 (2001): 52–82. http://dx.doi.org/10.1215/00021482-75.1.52.

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McCook, Stuart. "Promoting the "Practical": Science and Agricultural Modernization in Puerto Rico and Colombia, 1920-1940." Agricultural History 75, no. 1 (2001): 52–82. http://dx.doi.org/10.1525/ah.2001.75.1.52.

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KITLV, Redactie. "Book Reviews." New West Indian Guide / Nieuwe West-Indische Gids 73, no. 1-2 (1999): 121–81. http://dx.doi.org/10.1163/13822373-90002590.

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-Charles V. Carnegie, W. Jeffrey Bolster, Black Jacks: African American Seamen in the age of sail. Cambridge MA: Harvard University Press, 1997. xiv + 310 pp.-Stanley L. Engerman, Wim Klooster, Illicit Riches: Dutch trade in the Caribbean, 1648-1795. Leiden: KITLV Press, 1998. xiv + 283 pp.-Luis Martínez-Fernández, Emma Aurora Dávila Cox, Este inmenso comercio: Las relaciones mercantiles entre Puerto Rico y Gran Bretaña 1844-1898. San Juan: Editorial de la Universidad de Puerto Rico, 1996. xxi + 364 pp.-Félix V. Matos Rodríguez, Arturo Morales Carrión, Puerto Rico y la lucha por la hegomonía e

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Tévar Angulo, Juan Miguel. "José Tamayo: la búsqueda desde el exterior de una estética innovadora para la escena española de posguerra (1949-1951)." Epos : Revista de filología, no. 28 (January 1, 2012): 195. http://dx.doi.org/10.5944/epos.28.2012.12271.

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Entre los años 1949-1951 José Tamayo con su Compañía Lope de Vega emprende una gira por siete países americanos. Durante su estancia en América mantiene relación con los exiliados españoles y en especial con el Catedrático de Ciencias Sociales de la Universidad de Rio Piedras, en San Juan (Puerto Rico), Alfredo Matilla Jimeno, antiguo militante de Izquierda Republicana. Durante el periplo americano se configura una buena parte de la estética teatral de José Tamayo, que a su regreso a España estrena La muerte de un viajante de Arthur Miller. El dramaturgo norteamericano concede los derechos de

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Flores-Mangual, Mario L., and Agenol González-Vélez. "Effect of chicken manure application and plant deleafing on soil characteristics and dwarf plantain (Musa AAB) production." Journal of Agriculture of the University of Puerto Rico 103, no. 1 (2019): 27–47. http://dx.doi.org/10.46429/jaupr.v103i1.17899.

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Plantains are produced in the mountainous region of Puerto Rico and are grown in highly weathered soils of low fertility and high degradation potential. Alternatives to mitigate soil degradation include the application of chicken manure and the placement of deleafed sigatoka-infected leaves on top of the soil (deleafing). The objective of this study was to determine the effect of chicken manure and deleafing on soil properties and plantain productivity. The experiment was conducted in a Dagüey soil series at the Agricultural Experiment Substation in Corozal, Puerto Rico. The treatments were:

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López-Quintero, Isis J., Linda Wessel-Beaver, James D. Ackerman, and Jose Carlos V. Rodrigues. "Geographical distribution and detection of two potyviruses occurring in Momordica charantia (Cucurbitaceae) in Puerto Rico." Journal of Agriculture of the University of Puerto Rico 106, no. 2 (2023): 247–66. http://dx.doi.org/10.46429/jaupr.v106i2.21156.

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Transmission dynamics of viruses within and among cultivated plant species are often well known. Much less studied, especially in the tropics, is the dynamic of virus exchange between cultivated and nearby wild or weedy species, even though such exchanges are known to occur. To develop the best strategies for crop protection and general disease control, spatial distribution of viruses in non-cultivated plants needs to be understood. This research focuses on the potyviruses that infect Momordica charantia (Cucurbitaceae), an alien naturalized invasive vine in Puerto Rico. A total of 390 symptom

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Watrin, Clifford G., and Edward B. Radcliffe. "Green Peach Aphid Control with Foliar Insecticides on Potato in Puerto Rico, 1985." Insecticide and Acaricide Tests 11, no. 1 (1986): 183–84. http://dx.doi.org/10.1093/iat/11.1.183.

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Abstract Potatoes were planted 17 Dec, at the Isabela Research and Development Center of the University of Puerto Rico Agricultural Experiment Station, Isabela, PR. Treatments were 2 rows 10 ft long, with 36-inch spacing between rows and 16-inch spacing within rows. Each treatment was randomized in complete blocks with 4 replications. Foliar sprays were applied 20 Feb, 27 Feb, and 4 Mar, using a CO2 powered hand-sprayer delivering 50 gal of water/acre at 35 psi. Aphids were counted from 20 fully mature leaves per plot on 18 Feb, 25 Feb, and 6 Mar.

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Rolfe, Ashley K., Allen Kurta, and Daniel L. Clemans. "Species-level analysis of diets of two mormoopid bats from Puerto Rico." Journal of Mammalogy 95, no. 3 (2014): 587–96. https://doi.org/10.5281/zenodo.14817244.

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(Uploaded by Plazi for the Bat Literature Project) Molecular approaches, such as polymerase chain reaction (PCR), allow biologists to analyze the diet of mammals in more detail than conventional techniques, by targeting DNA of prey found within feces. Diets of the Antillean ghost-faced bat (Mormoops blainvillei) and sooty mustached bat (Pteronotus quadridens) on Puerto Rico were determined via PCR, and resulting sequences of DNA were compared with those in the Barcode of Life Data Systems (BOLD). We identified 21 species consumed by M. blainvillei and 4 by P. quadridens, although an additional

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KITLV, Redactie. "Book Reviews." New West Indian Guide / Nieuwe West-Indische Gids 59, no. 3-4 (1985): 225–78. http://dx.doi.org/10.1163/13822373-90002074.

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-John F. Szwed, Richard Price, First-Time: the historical vision of an Afro-American people. Baltimore and London: The Johns Hopkins University Press, Johns Hopkins Studies in Atlantic History and Culture, 1983, 191 pp.-Thomas J. Spinner Jr., Reynold Burrowes, The Wild Coast: an account of politics in Guyana. Cambridge MA: Schenkman Publishing Company, 1984. xx + 348 pp.-Gad Heuman, Edward L. Cox, Free Coloreds in the slave societies of St. Kitts and Grenada, 1763-1833. Knoxville: University of Tennessee Press, 1984. xiii + 197 pp.-H. Michael Erisman, Anthony Payne, The international crisis in

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Villarín, Lorraine J. Ramírez, and Samantha R. Fowler. "Socioscientific Issues to Promote Content Knowledge & Socioscientific Reasoning in Puerto Rican High School Students." American Biology Teacher 81, no. 5 (2019): 328–32. http://dx.doi.org/10.1525/abt.2019.81.5.328.

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Socioscientific issues have proved to be excellent tools for fostering the development of higher-order thinking skills that lead to superior socioscientific reasoning and decision making. This educational construct, with a focus on a local coastal environmental situation, was incorporated into a science class of high school biology students in Puerto Rico to assess relevant content knowledge and enable socioscientific reasoning. We describe how socioscientific reasoning was introduced, implemented, and assessed and the influence it had on students during a four-week in-depth exploration on the

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Oliveras-Berrocales, Miguel, Luis R. Pérez-Alegría, and David Sotomayor-Ramírez. "Geostatistical analysis for mapping soil salinity in the Lajas Valley Agricultural Reserve, southwestern Puerto Rico." Journal of Agriculture of the University of Puerto Rico 101, no. 1 (2021): 1–15. http://dx.doi.org/10.46429/jaupr.v101i1.14290.

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Studies were conducted in the 1950s to evaluate the degree and spatial extent of soil salinity and sodicity in the Lajas Valley in southwestern Puerto Rico. Problem areas were identified and most of these were remediated with the establishment of irrigation and drainage infrastructure, resulting in a four-fold increase in agricultural production over a 10-year period. The area is now an important agricultural region (known as the Lajas Valley Agricultural Reserve). But soil salinity and sodicity are important concerns among farmers. In this paper we used published data and re-created the spati

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Watrin, Clifford G., and Edward B. Radcliffe. "Population Response of Green Peach Aphid on Potato in Puerto Rico, 1984-85." Insecticide and Acaricide Tests 11, no. 1 (1986): 180–81. http://dx.doi.org/10.1093/iat/11.1.180.

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Abstract Potatoes were planted at the Isabela Research and Development Center of the University of Puerto Rico Agricultural Experiment Station. The LaRouge were planted 27 Nov and the Shepody on 11 Dec. Treatments were 4 rows, 20 ft long, with 36-inch spacing between rows and 16-inch spacing within rows. Each treatment was randomized in complete blocks with 4 replications. The soil systemics were applied in-furrow at planting. Foliar sprays were applied either weekly or biweekly. The LaRouge were sprayed 18 Jan to 18 Feb and the Shepody from 18 Jan to 4 Mar. Sprays were applied with a tractor-

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Kurland, Philip B. "Posadas de Puerto Rico v. Tourism Company: "'Twas Strange, 'Twas Passing Strange; 'Twas Pitiful, 'Twas Wondrous Pitiful."." Supreme Court Review 1986 (January 1986): 1–17. http://dx.doi.org/10.1086/scr.1986.3109517.

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Cala-Riquelme, Franklyn, Patrick Wiencek, Eduardo Florez-Daza, Greta J. Binford, and Ingi Agnarsson. "Island–to–Island Vicariance, Founder–Events and within–Area Speciation: The Biogeographic History of the Antillattus Clade (Salticidae: Euophryini)." Diversity 14, no. 3 (2022): 224. http://dx.doi.org/10.3390/d14030224.

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The Caribbean Archipelago is a biodiversity hotspot that plays a key role in developing our understanding of how dispersal ability affects species formation. In island systems, species with intermediate dispersal abilities tend to exhibit greater diversity, as may be the case for many of the salticid lineages of the insular Caribbean. Here, we use molecular phylogenetic analyses to infer patterns of relationships and biogeographic history of the Caribbean endemic Antillattus clade (Antillattus, Truncattus, and Petemethis). We test if the timing of origin of the Antillatus clade in the Greater

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Tossas, Adrianne G., Osvaldo Rullán, Robert J. Mayer, and Jean P. González. "Checklist of the birds of Finca Nolla, a recently protected area in northern Puerto Rico." Journal of Caribbean Ornithology 33 (July 3, 2020): 58–66. http://dx.doi.org/10.55431/jco.2020.33.58-66.

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Abstract We present the first bird inventory conducted in Finca Nolla, a 42.8 ha wetland in northwestern Puerto Rico that was severely disturbed by agricultural and industrial activities throughout the 20th century. This wetland is mostly covered by mangrove forest and other habitat types (e.g., coastal forest, grassland, seashore), and sustains a diverse ecosystem, despite being isolated from other natural areas by urban development. Restoration activities have tried to improve the habitat’s quality since the site was designated a protected area in 2011, particularly by stabilizing sand dunes

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Trautmann, Nancy M., James G. MaKinster, and Michael Batek. "What Lives Where & Why? Understanding Biodiversity through Geospatial Exploration." American Biology Teacher 75, no. 7 (2013): 462–67. http://dx.doi.org/10.1525/abt.2013.75.7.4.

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Using an interactive map-based PDF, students learn key concepts related to biodiversity while developing data-analysis and critical-thinking skills. The Bird Island lesson provides students with experience in translating geospatial data into bar graphs, then interpreting these graphs to compare biodiversity across ecoregions on a fictional island. When the lesson is extended to include real data for Puerto Rico, students can explore distributions of selected bird species based on environmental attributes, making connections between each species’ adaptations, habitat requirements, and distribut

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White, Thomas H., Wilfredo Abreu, Gabriel Benitez, et al. "Minimizing Potential Allee Effects in Psittacine Reintroductions: An Example from Puerto Rico." Diversity 13, no. 1 (2021): 13. http://dx.doi.org/10.3390/d13010013.

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The family Psittacidae is comprised of over 400 species, an ever-increasing number of which are considered threatened with extinction. In recent decades, conservation strategies for these species have increasingly employed reintroduction as a technique for reestablishing populations in previously extirpated areas. Because most Psittacines are highly social and flocking species, reintroduction efforts may face the numerical and methodological challenge of overcoming initial Allee effects during the critical establishment phase of the reintroduction. These Allee effects can result from failures

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Watrin, Clifford G., and Edward B. Radcliffe. "Control of Tomato Fruitworm Control in Puerto Rico on Three Tomato Cultivars, 1984-85." Insecticide and Acaricide Tests 11, no. 1 (1986): 200. http://dx.doi.org/10.1093/iat/11.1.200.

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Abstract Tomatoes werf planted at the Fortuna Research and Development Center of the University of Puerto Rico Agricultural Experiment Station, Fortuna, PR. Three varieties, PR-82 and PR-101, advanced breeding lines from the Puerto Rico program and the well known U.S. cultivar, Walter, were used. Seedlings were transplanted to the field 10 Dec. Treatments consisted of 4 rows of 5 plants each with 36-inch spacing between rows and 16-inch spacing within rows. Each treatment (variety × spray, including an untreated control) was replicated 3 times in a randomized complete block design. PR 101 was

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Eick, Stephanie M., John D. Meeker, Andrea Swartzendruber, et al. "Relationships between psychosocial factors during pregnancy and preterm birth in Puerto Rico." PLOS ONE 15, no. 1 (2020): e0227976. http://dx.doi.org/10.1371/journal.pone.0227976.

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Ballester, Veroushka, Xiuqing Guo, Roberto Vendrell, et al. "Association of NOD2 and IL23R with Inflammatory Bowel Disease in Puerto Rico." PLoS ONE 9, no. 9 (2014): e108204. http://dx.doi.org/10.1371/journal.pone.0108204.

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Ortiz, Ana Patricia, Karen J. Ortiz-Ortiz, Moraima Ríos, et al. "Modelling the effects of quadrivalent Human Papillomavirus (HPV) vaccination in Puerto Rico." PLOS ONE 12, no. 11 (2017): e0184540. http://dx.doi.org/10.1371/journal.pone.0184540.

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Franqui, R. A., J. A. Santiago-Blay, S. Medina Gaud, and E. Abreu. "The "Museo de Entomologia y Biodiversidad Tropical" of the Agricultural Experiment Station, University of Puerto Rico." Florida Entomologist 80, no. 4 (1997): 490. http://dx.doi.org/10.2307/3495614.

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Borkhataria, Rena, Jaime A. Collazo, Martha J. Groom, and Adrian Jordan-Garcia. "Shade-grown coffee in Puerto Rico: Opportunities to preserve biodiversity while reinvigorating a struggling agricultural commodity." Agriculture, Ecosystems & Environment 149 (March 2012): 164–70. http://dx.doi.org/10.1016/j.agee.2010.12.023.

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Wessel-Beaver, Linda, Sonia L. Martínez-Garrastazú, Jose C. Rodrigues, Evelyn Rosa-Márquez, Guillermo Fornaris-Rullán, and Agenol González-Vélez. "Performance of sweet chili pepper (Capsicum chinense Jacq.) landraces in three agricultural zones of Puerto Rico." Journal of Agriculture of the University of Puerto Rico 106, no. 2 (2023): 207–31. http://dx.doi.org/10.46429/jaupr.v106i2.21154.

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Capsicum chinense is a small aromatic pepper native to the Amazon and widely used in the Caribbean Basin. Most types of C. chinense are highly pungent, but landraces in Puerto Rico generally have little or no pungency. This “sweet chili pepper” (or ají dulce, as it is known on the Island) is an integral part of the local cuisine. Ten sweet chili pepper lines derived from non-pungent landraces were evaluated in Lajas, Juana Díaz and Corozal, Puerto Rico, in 2009. The lines represented a diversity of fruit types common on the Island. Plants in Juana Díaz grew to about twice the height of those i

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McNeal, Keith E. "The Drug Company Next Door: Pollution, Jobs, and Community Health in Puerto Rico, written by Alexa S. Dietrich." New West Indian Guide 91, no. 1-2 (2017): 104–6. http://dx.doi.org/10.1163/22134360-09101015.

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Rivera-Collazo, Isabel, Eric Rodríguez-Delgado, and Marisol Rodríguez-Miranda. "Lidar Inspection for Indigenous Architecture at Caguana Ceremonial Complex, Borikén." Latin American Antiquity 33, no. 1 (2021): 205–11. http://dx.doi.org/10.1017/laq.2021.86.

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The virtual removal of forest canopies through light detection and ranging (lidar) has enhanced archaeological interpretations of settlement patterns in tropical zones. Although lidar collections of Indigenous landscapes in the Caribbean Archipelago are limited, resolutions from open-access lidar datasets reveal coarse regional settlement patterns and large-scale architecture planning. In this article we inspect the Caguana Ceremonial complex in Utuado, Borikén (Puerto Rico), using a 2016 lidar dataset available through the National Oceanic and Atmospheric Administration portal. Visual compari

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Falcón, Wilfredo, and Raymond L. Tremblay. "From the cage to the wild: introductions of Psittaciformes to Puerto Rico." PeerJ 6 (October 30, 2018): e5669. http://dx.doi.org/10.7717/peerj.5669.

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Introduced psittacine birds can become highly invasive. In this study, we assessed invasions of Psittaciformes in Puerto Rico. We reviewed the literature, public databases, citizen science records, and performed in situ population surveys across the island to determine the historical and current status and distribution of psittacine species. We used count data from Ebird to determine population trends. For species whose populations were increasing, we modelled their potential distribution using niche modeling techniques. We found 46 Psittaciformes in Puerto Rico, of which 26% are only present

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