When referring to “the burden of scarcity” (Grover 187), Jan Zita Grover is speaking about the problematic nature of a certain subject or identity having no precedent for representation in society. As a result of this, there are a variety of viewpoints that may follow, all revolving around the interpretation of the significance of actions within a marginalized group.
For example, when there is no representation, “the unseemly [behavior] of even one member – or one representation – carries a far greater significance, a much heavier burden” (187). This can create pressure on certain individuals to either fit in with/recreate behaviors of others in order to identify with them or even make one feel like their identity and expression isn’t welcome. Both of these perspectives can be seen in response to mainstream media, which largely focuses on cishet, white narratives, characters, and storytelling. Through this, queer people and people of color may feel isolated and pressured to fit within these narratives where their struggle may be a side point, supplementary to the narrative, or completely ignored altogether. This also makes it difficult for those who have existed beforehand to leave a precedent for future generations to go after, a definite problem within queer culture and studies.
Grover, Jan Zita. “Framing the Questions: Positive Imaging and Scarcity in Lesbian Photographs.” Stolen Glances: Lesbians Take Photographs, edited by Tessa Boffin and Jean Fraser, Pandora Press, 1991, pp. 184–190.