Among cooperatively breeding species, helpers are hypothesised to increase the survival of breeders by reducingbreederworkload inoffspring care and increasedgroupvigilance against predators. Furthermore, parental nepotism or other benefits of group living may provide a survival benefit to young that delay dispersal to help. We tested these hypotheses in the Karoo Scrub-robin (Cercotrichas coryp...

We examined the proximate causes of delayed breeding and alloparental behavior in the cooperatively breeding red-cockaded woodpecker by measuring plasma concentrations of testosterone (T) and prolactin (PRL) in female breeders, male breeders, and male helpers during different stages of the reproductive cycle. Male breeders and helpers have low T during the prebreeding period, highest T during c...

In animal populations, a minority of individuals consistently achieves the highest breeding success and therefore contributes the most recruits to future generations. On average, foraging performance is important in determining breeding success at the population level, but evidence is scarce to show that more successful breeders (better breeders) forage differently than less successful ones (po...

In many cooperatively breeding birds and mammals, group size is positively correlated with reproductive success. In marmoset and tamarin monkeys, species that display cooperative breeding, the presence of helpers appears to be critical for offspring survival, and breeders might be expected to display social strategies that would regulate group size. This study investigated the association betwe...

BACKGROUND The European Farmers' Study has indicated that sheep farmers might be at risk for the development of respiratory symptoms. AIMS To assess the prevalence of respiratory symptoms in sheep breeders and potential work related risk factors. METHODS All sheep breeders listed in two regions of South Germany were asked to answer a mailed questionnaire on respiratory symptoms, work relate...

The objective of this study was to describe two clinical cases of toxicosis by accidental administration of salinomycin in feed in broiler breeders and turkeys. In the first clinical case, a 32000 broiler breeders flock, 30 weeks of age, suffered a severe mortality during the first week, a sharp decrease in egg production and a dramatic reduction in food consumption together with an increase of...

Understanding the response of species with differing life-history traits to habitat edges and habitat conversion helps predict their likelihood of persistence across changing landscape. In Brazil's Atlantic Forest, we evaluated frog richness and abundance by breeding guild at four distances from the edge of a reserve: i) 200 m inside the forest, ii) 50 m inside the forest, iii) at the forest ed...

Data on the development of Covid-19 pandemic as May 17 2020 shows that all areas in West Nusa Tenggara Province are declared red zones. This condition causes people to become anxious. One community group feels this anxiety is beef cattle breeders smallholder farms. The purpose study was determine impact level farming families farms Province. research method a survey from September 2022 10 regen...

Indigofera is a legume that can be used as forage for livestock. Leguminosa type of tree and shrub-shaped plant contains higher protein than ordinary grass. legumes have several advantages including high productivity, adaptability to low soil fertility, easy inexpensive maintenance. This activity aims transfer knowledge farmers regarding the potential development quality animal feed provide see...