Dados do Trabalho

Título

ANXIOGENIC AND ANXIOLYTICS: RELATIONSHIP BETWEEN PHYSIOLOGICAL AND BEHAVIOURAL INDICATORS OR STRESS IN CAPTIVE CAPUCHINS (SAPAJUS LIBIDINOSUS)

Resumo

<p>Research about behaviours potentially indicative of stress (BPIS) in captive animals has shown varying ways to relate to the physiological stress response. For example, self-grooming may have a buffering effect on the physiological response, resulting in negative correlations between BPIS and cortisol levels, while scratching may have the opposite effect. In this works, we used linear model regression selection via Akaike’s Information Criteria (AIC) to investigate the relationship between BPIS and mean, median, maximum and minimum fecal glucocorticoid levels in captive capuchins (<em>Sapajus libidinosus</em>). We did 317.56 hours of observation and collected 675 fecal samples from 30 adult capuchins kept in different enclosures at CETAS from Natal (RN) and João Pessoa (PB) and at Parque Zoobotânico Arruda Câmara (PB). Out of the 14 BPIS frequencies tested, six could predict at least one fecal glucocorticoid level: feces/urine/sperm manipulation predicts higher mean (AIC= -3.574; b=0.616; p=0.011), median (AIC= -3.529; b=0.614; p=0.012) and maximum (AIC= -9.128; b=0.789; p=0.001) glucocorticoid levels as an event, but lower minimum glucocorticoid levels as a state (AIC= -2.027; b= -1.077; p=0.025); self-grooming predicts lower mean (AIC=0.048; b= -0.326; p=0.078) and median (AIC= -0.671; b= -0.357; p=0.053) glucocorticoid levels; self-scratch predicts higher median glucocorticoid levels (AIC=0.866; b=0.375; p=0.071); crouching predicts higher maximum glucocorticoid levels (AIC=1.075; b=1.656; p=0.142); and pendulous movement as an event predicts lower minimum glucocorticoid levels (AIC= -3.475; b= -9.593; p=0.012). Best models for mean, median and maximum glucocorticoid is feces/urine/sperm manipulation-event alone, while best model for minimum glucocorticoid is pendulous movement-event alone. These results separate self-grooming, pendulous movement-event and feces/urine/sperm manipulation-state as potential coping strategies, and self-scratching, crouching and feces/urine/sperm manipulation-event as potential stress indicators.</p>

Financiamento

Palavras-chave

<p>BPIS; fecal glucocorticoids.</p>

Área

Área 2 - Comportamento