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Data Periodismo de Datos

The myth of rabbits

The highest fertility rate in the country is in Beni and Pando, and the stereotype claiming otherwise exists to frame internal migration as an invasion.

By — Tecnóloga Creativa

Contested Ground 00%

Sheet 02 · Demography

A phrase has circulated in eastern Bolivia for decades and almost nobody bothers to check it: that collas, the highlanders, breed like rabbits. It is the popular explanation for why the Andean west holds most of the country's population, and for why that population keeps turning up in Plan 3000, in Yapacaní, in San Julián, in the Chiquitanía.

Fertility by departmentEDSA 2023 · replacement = 2.1
DepartmentPosition vs replacement
PotosíAbove 2.1
BeniAbove 2.1 · lowland east
PandoAbove 2.1 · lowland east
CochabambaAbove 2.1
La PazBelow 2.1
OruroBelow 2.1
Santa CruzBelow 2.1
TarijaBelow 2.1
Chuquisaca1.8 — lowest in the country
National total fertility rate: 2.1 children per woman, exactly replacement level. Down from 2.9 in 2016 and 7.7 in the 1960s. Urban 1.9 · rural 2.9.

La Paz and Oruro sit below replacement. Beni and Pando, the heart of the east, are among the highest in the country.

Intercensal growth2012 → 2024
DepartmentChange 
Pando+21.5%
Santa Cruz+17.5%
Beni+15.7%
Oruro+15.5%
Cochabamba+14.4%
La Paz+11.5%
Tarija+10.5%
Chuquisaca+4.3%
Potosí+4.0%
The three fastest-growing departments are all in the east. The two slowest are Andean.

INE director Humberto Arandia explained the mechanism when presenting the survey: urban fertility is 1.9 and rural fertility 2.9, so growth in the large urban areas depends largely on rural-to-urban migration rather than on births in those cities. Santa Cruz grew because people arrived. Not because they were born.

Who counts as Indigenous in Santa Cruz

Bolivia does not measure race. The census asks about self-identification with Indigenous, originary and peasant nations and peoples, and with Afro-Bolivian identity, in yes-or-no form. That instrument decides everything that can be known. The 2024 census recorded four million three hundred and two thousand four hundred and eighty-four people, 38.7% of the country. In 2012 it was 42%; in 2001, 62%. But in absolute terms the Indigenous population went from 4.2 to 4.3 million. What falls is the percentage, pushed by growth in the denominator and by the effect of urbanisation on how people name themselves.

Peoples by number of peopleCensus 2024
PeopleCountRegion
Quechua1,646,811Andes / valleys
Aymara1,595,045Altiplano
Guaraní103,712Lowlands
Chiquitano> 100,000Lowlands
Toromona14Lowlands
Paunaca7Lowlands
In the municipality of Santa Cruz de la Sierra, Indigenous self-identification is 8%. Among those who do claim it, the largest group is Quechua with more than 43,000 people, followed by Aymara with 19,500. The Guaraní come third.

The city with the most Quechua people in eastern Bolivia is Santa Cruz de la Sierra.

The word camba

The regional demonym carries the same history as the land. The earliest written record appears in the 1676 Relación de la provincia de Mojos by the Jesuit brother Joseph del Castillo, where the plural cambas denotes a group of Mojos natives the Jesuit was taking to San Lorenzo, present-day Santa Cruz, for domestic service, to learn Spanish as guides and translators, and to work the fields.

Sixty years later, the historian Paula Peña found a telling entry in the 1735 cathedral archive: Juan indio de Piray, Juan Manuel Saldaña, Pedro Pablo camba. Indio marked ethnicity, Saldaña was a surname, and camba sat as an undefined category, probably for labourers who lived in the city and worked in rural areas.

Etymology · three competing accountsunresolved
OriginMeaningArgued by
Guaraní kambáBlack, mulattoMost widely accepted; Ramón Rocha Monroy
Kimbundu kambaFriendVia enslaved Africans, later adopted into Guaraní
Guaraní kuimba'eMan, lordGustavo Pinto Mosqueira · pre-Hispanic origin
Hernando Sanabria, in El habla popular de Santa Cruz, argues for the Guaraní origin with the sense of friend. In popular Río de la Plata liturgy, Balthazar, the Black Magus, is called El Santo Cambá.

The word began by naming Mojeño people in servitude and rural labourers. It ended up naming those who now hold the land.

What the myth is for

A stereotype that collapses under a single statistical table survives because it does a job. Breeding like rabbits converts internal migration into biological invasion. It naturalises what is an economic decision, leaving a department that grew four per cent in twelve years for one that grew seventeen point five, and presents it as an overflow of bodies.

Above all it sorts the conflict into two sides, cambas against collas. It sets the interculturales against the lowland Indigenous peoples, who together are the overwhelming demographic majority of the east, and removes from the frame the side that holds 93.5% of the land. That geometry is false. Someone benefits a great deal from keeping it.

Sources · Instituto Nacional de Estadística, 2024 Population and Housing Census and 2023 Demographic and Health Survey · Paula Peña, La permanente construcción de lo cruceño · Hernando Sanabria, El habla popular de Santa Cruz · Joseph del Castillo, Relación de la provincia de Mojos, 1676 · Ramón Rocha Monroy.