Similarities and differences in the realized niche of two allopatric populations of a solitary bee under environmental variability

NYDIA L. VITALE; SILVANA DURANTE; JUAN PABLO TORRETTA; ALICIA BASILIO; DIEGO P. VAZQUEZ

APIDOLOGIE

EDP SCIENCES S A

Lugar: Paris; Año: 2020

0044-8435

We studied the realized niche of two distant allopatric wool-carder bee populations (bee-plantinteraction and reproductive biology in weather variability). In one population, we analyzed the direct and indirecteffects of weather on bee-resource interactions. The two populations shared several niche characteristics but showedsome differences. Anthidium vigintipunctatum is a specialist species, with plasticity to extend the individual nichepushed by resources availability and weather variability. In both regions, the bee ? s response to weather condition wassimilar (nesting rates and the reproductive success). Causal analysis indicated climate directly determines bee ? sreproductive success, and indirect resource availability effects are subtle. The immediate response to environmentalconditions warms about A. vigintipunctatum sensitivity to expected changes in the regional climate which could be anegative pressure on bees ? survival