Evidence for chronological change in intra-site subsistence strategies is very rare in the Amerindian record of the Lesser Antilles. The study of the vertebrate assemblage from the archeological site of Roseau in the Guadeloupe Islands underlines the complexity and variability of Ceramic Age Amerindian subsistence behavior. This study establishes a more precise chronology of the previously identified strata of the site, and demonstrates that the Contact period was only represented by rare archeological artifacts dispersed in the stratigraphy. The results from this assemblage indicate that the earlier occupations of the site exhibit a more intensive exploitation of aquatic vertebrate resources compared to later occupations, which have a larger focus on terrestrial fauna, especially rodents and iguanas. This unusual pattern highlights how subsistence behaviors in the Lesser Antilles during the Late and Final Ceramic periods were highly variable. This new evidence of strong inter-site variability shows that the behaviors of Amerindians are not only dependent of large-scale environmental conditions but also influenced by more complex socio-cultural and local environmental parameters.

在美洲较小安的列斯群岛的记录中，现场内部生存策略随时间变化的证据非常少见。从瓜德罗普群岛罗索考古遗址进行的脊椎动物组合研究表明，陶器时代美洲印第安人生存行为的复杂性和可变性。这项研究建立了该地点先前确定的地层的更精确的年代，并证明了接触期仅由散布在地层中的稀有考古文物代表。该组合的结果表明，与后来的占领相比，该遗址的早期占领展示出对水生脊椎动物资源的更密集的利用，后者更加关注陆生动物，尤其是啮齿动物和鬣蜥。这种不同寻常的模式凸显了小安的列斯群岛在陶瓷晚期和最后时期的生存行为是如何变化的。站点间强烈变化的这一新证据表明，美洲印第安人的行为不仅取决于大规模的环境条件，而且还受到更复杂的社会文化和当地环境参数的影响。