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The REDATAM program: an approach to the Sustainable Development Goals in the Galapagos Islands
Marco Heredia-R 1*, Mateo Acurio-Gallardo2, Emma Torres 1, Jamil Heredia-Silva 3,4,5, Paterson Loyola-Barbosa6, Alexandra Torres 7, Karolina Villacis8, Theofilos Toulkeridis 9
1       Facultad de Ciencias Pecuarias y Biológicas, Universidad Técnica Estatal de Quevedo (UTEQ), Av. Quito km 11/2 vía a Santo Domingo de los Tsáchilas, Quevedo 120550, Ecuador.
2       Turismo Sostenible y TIC, Universitat Oberta de Catalunya (UOC) Barcelona, 08018 España.
3       Instituto Superior Tecnológico Vicente León, Latacunga, Cotopaxi, 050102, Ecuador.
4       Maestría en Educación e Innovación, Universidad Politécnica del Carchi (UPEC). Av Universitaria. Tulcán, Carchi, 040110, Ecuador.
5       Doctorado en Educación, Facultad Humanidades y Educación, Campus Montalbán, Caracas 1000, Distrito Capital, Venezuela.
6    Programa en Gestión Ambiental con mención en Desarrollo Sostenible, Universidad Técnica de Cotopaxi, Latacunga 0501491 Ecuador.
7       Facultad de Ciencias Jurídicas, Sociales y de la Educación. Universidad Técnica de Babahoyo. Extensión Quevedo (UTB). Km 3 1/2 Vía a Valencia, Los Ríos 120550, Ecuador.
8       Maestría en Administración de Empresas, Universidad Técnica de Cotopaxi, Latacunga 0501491 Ecuador.
9       Departamento de Ciencias de la Tierra y Construcción, Universidad de las Fuerzas Armadas ESPE, Sangolquí 171103, Ecuador.
*Correspondence: [email protected] (MH-R)
Available from.


Computer programs are an essential ally for fulfilling the Sustainable Development Goals (SDGs). They offer enormous potential for accelerating said fulfillment and reducing the cost of implementation processes. Our objectives in this Galapagos Islands case study were: i) to quantify the proportion of male and female inhabitants, separated by ethnicity, ii) to identify the number of dwellings distributed at urban and rural levels according to their typology, and iii) to determine the proportion of dwellings that are supplied with water. The Galapagos Islands are located 1000 km from mainland Ecuador. The program used was REDATAM Version 7 (Microcomputer Data Recovery for Small Areas), which specializes in processing microdata from population and housing censuses. The unit of investigation was the dwellings, and within them, the households and household members who are habitual residents in the province of Galapagos and who were in the 2015 census. It was identified that at the provincial level, 51.20% are male and 48. 80% are female, and the most populous canton is Santa Cruz. The population is divided into six ethnic groups heterogeneously between urban and rural sectors and between cantons. There are no group housing projects at the rural level for preventive or remedial assistance for the population, and there is a deficit in terms of water supply to the rural sector. Therefore, local authorities must promote programs to improve the living conditions of rural and urban dwellers to work toward complying with the goals of the Sustainable Development Goals, as outlined in the 2030 Agenda.
Keywords: 2030 Agenda; census, development, demography sustainable.
New computational technologies and paradigms can be employed in various fields, including demography, natural resource protection, agriculture, etc.2-9. The use and management of technology devices constitute one option for streamlining work in various areas 10. The use of computer programs can enable teaching and learning processes aimed at the construction of meaningful learning and public policies11.
The contribution of the extensive use of computer programs and censuses has spread in the generation of specific social impacts such as improving the quality of education, ensuring healthy lives, strengthening economic growth, and generating high-quality jobs12. However, from a sustainable perspective, the need arises to use these technologies to solve problems such as poverty, exclusion, economic and social development, and climate change, associating them with the rational use of the resources provided by nature13.
Population and housing censuses are a primary tool that should be considered to combat the challenges of obtaining essential information for sustainable development at local, regional, and national levels15,14. Its universal scope – i.e., it involves every single person residing in a territory, the households to which they belong, and the dwellings they inhabit16 – enables the obtaining of vital information concerning the living conditions of the population for smaller geographic areas and small populations groups, without the errors attributable to other sources of information that include samples in their design17.
Census processes constitute a fundamental means of identifying the populations that should be at the center of sustainable development policies, considering their implications on their demographic dynamics18,19. Censuses are an essential source for defining baselines for the starting dates for monitoring the goals and indicators of the 2030 Agenda. They will also be responsible for recording progress towards 2030, the year the goals should be achieved and the time for a new round of censuses20,21.
In 1985, the first version of the REDATAM DOS program was generated to identify and locate all census tabulations and publications, both general and specific22. To date, five versions have been created23; the REDATAM 7 program is the latest version published (2014), under the operating system, environment, and platform of Windows, WebServer, 64 bits, and Unicode-multilingual25. The development of REDATAM 7 had three main objectives: i) to increase the data processing speed, ii) to facilitate the programming of indicators, and iii) to improve the user's technical experience 24.
The latest studies using REDATAM have been about COVID-19 mortality and inequalities by socioeconomic level and territory across Latin America and the Caribbean26; quantifying the statistical evidence of COVID-19 in Costa Rica27; verifying the versatility in the adjustment of complex statistical models (in conjunction with the R program)28; statistical applications and processing tests carried out with the various versions of REDATAM29; microdata from the last 4 official censuses in Chile used to generate indicators30; and so on. Based on this background, the objectives were: i) to quantify the proportion of male and female inhabitants, separated by ethnicity, ii) to identify the number of dwellings distributed at urban and rural levels according to their typology, and iii) to determine the proportion of dwellings that are supplied with water. Finally, the document presents potential policy implications with a focus on technology.

Geographic Location
The study area was the Galapagos Islands, located 1000 km from mainland Ecuador (Figure 1), the second most volcanically active archipelago, surpassed only by Hawaii31. The Galapagos were declared a national park in 1959, protecting 97.5% of the archipelago's land area; the remaining area is occupied by human settlements32,33. The archipelago has several international agreements implemented to try to guarantee the conservation of the Galapagos, including a World Heritage Site, Ramsar Site, Whale Sanctuary, and Biosphere Reserve. The World Conservation Strategy identifies the Galapagos as a priority biogeographic province for establishing protected areas; the cold Humboldt Current and the warm Panama Current34 influence its climate.
The population is 25,244, distributed between the islands of San Cristóbal (28.51%), Isabela (9.29%), and Santa Cruz (62.20%). By self-denomination, according to culture, we find that 85% are Mestizos, 8% are Indigenous, 6% are Afro-Ecuadorians or white, and 1% are Montubios. The average age among the inhabitants is 29.3 years, and the dependency rate is 46.6%. Illiteracy stands at 1.3%35.  

Figure 1. Study area: A) Spatial distribution of the islands belonging to the province of Galapagos, and B) Location of Galapagos concerning mainland Ecuador.
The software used was REDATAM Version 7, fifth generation ( Its acronym in Spanish means Microcomputer Data Recovery for Small Areas. The program was developed in 2015 and maintained by the Latin American and Caribbean Demographic Center (CELADE, Population Division of ECLAC)22. REDATAM 7 is a statistical processing software specialized in microdata from population and housing censuses, surveys, and vital statistics. The program synthesizes large volumes of data, has a high processing speed35, and has been used in more than 30 countries in the Americas, Africa, and Asia35.
REDATAM databases are highly compressed and have a hierarchical structure with a geographic breakdown into more minor levels, such as city blocks, which enables local, regional, or national analysis. The program incorporates a development technology based on C++, Delphi, Java, and JavaScript37.
Census data
For this research, the 2015 census data for the Galapagos province ( was used, conducted in both urban and rural areas, where information was collected on all existing dwellings and the population that usually resides in the province. The unit of investigation was the dwellings and, within them, the households and household members who are habitual residents in the Galapagos province.
Due to the complexity of the study area, the information was collected over one month – from November 5th to December 2nd, 2015 – using mobile capture devices (Tablet) and by directly interviewing a qualified informant, such as the head of household, spouse, or household member aged 12 years and older, who knows and can provide information on all members of the family. Only in exceptional cases physical questionnaires were used35.
Data Management
The organization of the census data was based on nine entities, which are sets of logical objects organized hierarchically in the database (Figure 2) and three elements that are the individual members of each entity38.

Figure 2. REDATAM 7 interface: the Galapagos 2015 database, with nine entities and three hierarchically organized elements.
To meet each objective, we applied cross-referenced variables, consisting of information about the elements that comprise an entity and a database. A census database stores information in variables, such as people's sex, kinship, age, the dwellings' type of roof and wall, and the millimeters of rainfall in the communes38.
For Objective 1 (proportion of male and female inhabitants at the urban-rural level (1) and ethnicity (2)), the following equations were used:
  TABLE FREQ CANTON.NAMEOFCANT BY PERSON.SEX                                      (1)
For Objective 2 (number of dwellings distributed at the urban and rural level according to their typology), we used:
TABLE FREQ HOUSING.VTV BY HOUSING.AUR                                           (3)
For Objective 3 (proportion of dwellings supplied with water), we used:
     TABLE FREQ HOUSING.V05 BY HOUSING.AUR                                              (4)  

The proportions and distributions of the population by sex, ethnicity, housing type, and water supply on the Galapagos Islands.

The proportion of male and female inhabitants at urban and rural levels
At the provincial level, 51.20% are male and 48.80% are female (Table 1). At the cantonal level, Santa Cruz is the most populated (62.20%), followed by San Cristóbal (28.52%) and Isabela (9.29%). The canton with the most significant female presence is Santa Cruz (30.51%), while in San Cristóbal and Isabela, female people make up 13.81% and 4.48% of the population, respectively. 50.95% are male in Santa Cruz, and 51.59% and 51.71% in San Cristóbal and Isabela, respectively.
Table 1. The proportion of male and female inhabitants on the Galapagos Islands in 2015

Regarding population distribution by sector (urban-rural) and ethnicity (Table 2), the urban sector has the highest concentration of population (81.36%). In contrast, the rural population is distributed between Santa Cruz, San Cristóbal, and Isabela with 82.44%, 13.73%, and 13.73%, respectively. In terms of ethnicity in the archipelago, Mestizos (85.18%) form the largest group by far, followed by Indigenous people (8.07%), Afro-Ecuadorians (2.83%), white people (2.63%), Montubios (1.25), and others (0.04%) (Table 2).

Table 2. Population distribution by sector and ethnicity on the Galapagos Islands in 2015 and proportion in parenthesis.
Number of dwellings distributed at urban and rural levels according to type in the Galapagos Islands
At the provincial level, 97.40% of the dwellings are private homes, while 2.60% are group dwellings (Table 3). At the urban level, there are more apartments in houses or buildings (49.62%), followed by villa houses (34.46%), while in rural areas, there are more villa houses (79.13%) than apartments (8.06%).

Table 3. Housing typology by sector on the Galapagos Islands in 2015

The proportion of households supplied with water on the Galapagos Islands.
At the provincial level, water supply is provided by the public water mains (89.92%), rainwater (5.20%), water delivery trucks (3.88%), rivers or irrigation channels (0.65%), and wells (0.35%) (Table 4). At the rural level, the principal means of water supply are rainwater collection (29.79%), water delivery trucks (14.97%), and rivers or irrigation channels (2.97%), while at the urban level, the public water mains (97.91%), water delivery trucks (1.55%), and wells (0.35%) predominate as water supply mechanisms.

Table 4. Households and their means of water supply on the Galapagos Islands in 2015.


On the Galapagos Islands, there are more male than female residents (by 2%). Compared to other island areas, its population represents 1.2% of the Canary Islands' population (Spain)39 and 14% of the Chiloé archipelago's population (Chile)40. Migration is a social process that alters a given population's structure, growth, and distribution and is fundamentally linked to social, economic, and political factors, leaving considerable gaps in both the place of origin and destination41. The different migratory processes to the Galapagos Islands have meant that the land is occupied by various ethnic groups: Indigenous, Afro-Ecuadorian, Montubio, Mestizo, and white people42-45. Similar scenarios have occurred in the Canary Islands, where citizens from Venezuela, Cuba, Germany, Morocco, Ivory Coast, Guinea, Gambia, Senegal, and Cameroon have arrived 46.
Group housing is intended to be inhabited by people subject to a joint authority or regime not based on family ties or cohabitation. Group housing may only partially occupy a building or, more frequently, the entire building 35. 12% of group housing in the Galapagos is in rural areas, while 88% is in urban areas, of which 1% are hospitals, clinics, etc., 5% are military, police, or firehouse barracks, and 91% are hotels, residential complexes, and hostels. This is contrary to Target 3.3.8 of SDG 3, "Achieve universal health coverage, including financial risk protection, access to quality essential healthcare services and access to safe, effective, quality and affordable essential medicines and vaccines for all," as there is no evidence of essential hospitals in the rural areas of the islands47.
More than 2 million people die each year from diarrheal diseases worldwide48-49, and a lack of hygiene and unsafe water are responsible for almost 90% of these deaths, mainly affecting children47. At the rural level in Galapagos, a mere 8% (907) of households have access to water. Given the abovementioned issues, it is essential to meet target 6.6. a of SDG 6, "By 2030, expand international cooperation and capacity-building support to developing countries in water- and sanitation-related activities and programs, including water harvesting, desalination, water efficiency, wastewater treatment, recycling and reuse technologies" 47.
One of the most common and complicated problems faced by rural communities around the world relates to inadequate conditions for accessing drinking water, circumstances exacerbated by the gradual decrease in water resources and the consequent increase in the costs of obtaining drinking water51. The availability of drinking water in the world is very variable and is directly related to poverty and the inability of governments to finance sanitation projects; thus, regions such as Africa, Asia, Latin America, and the Caribbean have around one billion people in rural areas who do not have access to improved water sources52. The problem of being unable to access an adequate drinking water supply is exacerbated by long periods of drought53. On the Galapagos Islands, of the total number of households (8,346) that have some water supply in rural areas, 17% receive water from the public water mains, while the rest collect water from wells, the rain, irrigation channels, or water delivery trucks that possibly there is bacterial contamination that exceeds the permissible limit, a scenario similar to areas far from the center of the city of Karbala (Iraq), where bottled water is contaminated54. To avoid problems related to water stress and public health, it is essential to use a natural carbon filter and solar disinfection as alternatives for more significant removal of contaminants51-53.

Potential technological policy implications with REDATAM
One of the main policy implications of REDATAM is its ability to democratize access to information56. Previously, access to census and socioeconomic data was limited to experts and government officials, hindering citizen participation in decision-making processes, such as census data from the Galapagos Islands. REDATAM has allowed anyone with access to a computer to easily explore and analyze the data, empowering civil society and fostering transparency in political processes.
In addition, REDATAM has facilitated the creation of evidence-based public policies 58. Thanks to its capacity to process large volumes of data and generate automatic tabulations, decision-makers can obtain up-to-date and detailed information on the socioeconomic situation; for example, gaps and inequalities have been identified in this case study of the Galapagos Islands. Furthermore, REDATAM has promoted a culture of evaluation and monitoring of public policies, as the results of interventions can be systematically monitored and evaluated 59.
Nevertheless, challenges and potential risks are also associated with using REDATAM in the political arena. One of these is the proper handling of privacy and data protection60. When working with sensitive information, it is essential to guarantee the data's confidentiality and protect the people's identity. In addition, the availability of detailed and accessible information can pose challenges in national security, as specific data could be misused or maliciously61.
Another challenge is to ensure that access to REDATAM is inclusive and equitable. Although the tool has contributed to democratizing access to information, ensuring that all people have the necessary training and resources to use it effectively, 56 is necessary. Moreover, it is essential to address the digital divide, ensuring that the most marginalized and disadvantaged communities also have access to technology and can benefit from REDATAM.



The population distribution identified by ethnicity and sex at rural and urban levels in the cantons of the Galapagos Islands could promote capacity-building campaigns for key groups for parish, cantonal, and provincial councils. The higher number of group dwellings in urban as opposed to rural areas in the Galapagos Islands is of concern regarding public healthcare for villagers and farmers. The precarious water coverage at the rural level could cause potential illnesses, increased livelihood costs, and further migration to the urban sector.
The REDATAM program facilitates the management of census data at the country and sector level, facilitating the construction of various indicators and targets relating to the Sustainable Development Goals and thus contributing to decisions made by sectoral governments. REDATAM has had essential policy implications by democratizing access to information and strengthening evidence-based decision-making. However, it is essential to address the challenges associated with using this tool, such as data protection and equity of access, to ensure that its benefits are used responsibly and moderately.
Author Contributions: “Conceptualization, M.H-R. and E.T.; methodology, M.H-R. and E.T.; software, M.H-R.; A.T.; formal analysis, M.H-R. and K.V.; investigation, M.H-R. and P.L-B.; data curation, M.A-G.; J.H-S.; writing—original draft preparation, M.H-R.; E.T.and A.T.; writing—review and editing, M.H-R.;T.T; visualization, M.A-G.; J.H-S.; supervision, T.T.; project administration, M.H-R.; All authors have read and agreed to the published version of the manuscript.
Funding: This research received no external funding.
Data Availability Statement: Data are available through the corresponding author.
Acknowledgments: We want to thank the Technical University of the State of Quevedo (Los Ríos, Ecuador) and CONAGOPARE Galapagos for the support in carrying out this research and for the small grant of the project: Evaluation of agroecological dynamics and climate change in producers in Galapagos
Conflicts of Interest: "The authors declare no conflict of interest."

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Received: 28  May 2023/ Accepted: July 15th  2023 / Published:15 September 2023
Citation:  Heredia-R, M.; Acurio-Gallardo, M.; Torres, E.; Heredia-Jilva, J.; Loyola-Barbosa, P.; Torres, A.; Villacias, K.; Toulkeridis, T. The REDATAM program: an approach to the Sustainable Development Goals in the Galapagos Islands. Revis Bionatura 2023;8 (3) 20.
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