Data from: Temperature effects on development and population growth of two parasitoids (Hymenoptera) of the coffee berry borer (Hypothenemus hampei)

These data are from a study that evaluated the thermal biology of two key parasitoids of Hypothenemus hampei (Coffee berry borer; Coleoptera: Curculionidae): the larval-pupal ectoparasitoid Prorops nasuta (Hymenoptera: Bethylidae) and the adult endoparasitoid Phymastichus coffea (Hymenoptera: Eulophidae). Using age-stage, two-sex life tables across eight constant temperatures, we quantified temperature effects on development, survival, fecundity, and population growth. We identified 22-25°C as the optimal range for survival, and fecundity peaked at 25°C . Life-table parameters indicate maximal population growth at 25°C for both parasitoids. Development failed at extreme temperatures (32 and 35°C), highlighting upper thermal limits relevant to mass-rearing and field releases for both parasitoids. Degree-day models were developed to estimate the potential number of generations across Colombian coffee-growing regions. We predict 5.5-11.6 annual generations of P. nasuta and 2.2-8.6 of P. coffea, depending on local temperature regimes. These results identify optimal temperature ranges for rearing and deploying P. nasuta and P. coffea and provide spatially relevant predications for their establishment potential in Colombian coffee-growing regions. Regions with mean temperatures between 22-28°C are expected to support the greatest efficacy of augmentative biological control programs targeting the coffee berry borer.

本数据集源自一项研究，该研究评估了咖啡果小蠹（Hypothenemus hampei，鞘翅目Coleoptera：象甲科Curculionidae）的两种关键寄生蜂的热生物学特性：分别为幼虫-蛹期外寄生蜂——膜翅目Hymenoptera：肿腿蜂科Bethylidae的Prorops nasuta，以及成虫期内寄生蜂——膜翅目Hymenoptera：姬小蜂科Eulophidae的Phymastichus coffea。研究采用8种恒温条件下的年龄-阶段两性生命表（age-stage, two-sex life tables），量化了温度对两种寄生蜂的发育、存活、繁殖力及种群增长的影响。研究确定22~25℃为两种寄生蜂的最优存活温度区间，其繁殖力均在25℃时达到峰值。生命表参数显示，两种寄生蜂的种群最大增长速率均出现在25℃条件下。极端温度（32℃与35℃）下，两种寄生蜂均无法完成发育，明确了其高温热极限，该结果对两种寄生蜂的规模化饲养（mass-rearing）与田间释放（field releases）均具有重要参考意义。研究构建了积温模型（degree-day models），以估算哥伦比亚咖啡种植区中两种寄生蜂的潜在年发生世代数。根据当地温度状况，预测P. nasuta的年发生世代数为5.5~11.6代，P. coffea为2.2~8.6代。本研究结果明确了饲养与释放P. nasuta和P. coffea的最优温度范围，并为两种寄生蜂在哥伦比亚咖啡种植区的定殖潜力提供了具有空间相关性的预测结果。平均气温介于22~28℃的区域，将能为针对咖啡果小蠹的增补式生物防治（augmentative biological control）项目提供最佳防控效果。