Food restriction, but not seasonality, modulates the acute phase response of a Neotropical bat

摘要: Season and food intake are known to affect immune response of vertebrates yet their effects on metabolic rate have been rarely explored. We tested the effect season acute restriction interaction energetic cost activation a tropical vertebrate, Seba's short-tailed fruit bat (Carollia perspicillata). specifically stimulated phase (APR) with bacterial lipopolysaccharide (LPS) measure changes along in body temperature (Tb), mass (Mb), white blood cell counts Neutrophil/Lymphocyte ratio (N/L). found no different factors associated APR. In contrast our expectations, unfed bats reached similar Tb increments RMR peak values had higher scope caloric costs than fed after LPS injection. However, deprivation led delayed indicated by longer time required reach bats. Both food-deprived did not present leukocytosis APR WBC were similar, but significant increase N/L. represented small fraction daily energy requirements which might explain why limited mount response. Our study adds recent evidence showing that activating innate system is an energetically expensive process for plant-eating