Large Differences in Herbivore Performance Emerge From Simple Herbivore Behaviours and Fine-Scale Spatial Heterogeneity in Phytochemistry.

Patterns of phytochemistry localisation in plant tissues are diverse within and across leaves. These spatial heterogeneities are important to the fitness of herbivores, but their effects on herbivore foraging and dietary experience remain elusive. We manipulated the spatial variance and clusteredness of a plant toxin in a synthetic diet landscape on which individual caterpillars fed.

Anthropogenic effects on the eco-immunology of herbivorous insects.

Insect herbivore eco-immunology involves complex interactions between herbivore immunity and their natural enemies, and the responses of these interactions to environmental factors including plant anti-herbivore toxins. Plant toxins can affect herbivore immunity, leading to either immunoenhancement or immunosuppression, which in turn influences their vulnerability to parasitoids and pathogens. Herbivore immune responses differ among species regionally, reflecting adaptations to local environmental conditions and natural enemy pressures.

Integration of services for Neglected Tropical Diseases and mental health in Nigeria: development of a practical model informed by international recommendations, contextual factors and service-user perspectives.

Background: Mental health care is now recognised as essential for people affected by NTDs, but accessible services are rare. This paper presents results of a prevalence study for depression and anxiety among people living with leprosy and lymphatic filariasis, and collation of user perspectives on needs and priorities for a new service.

Methods: Prevalence of mental conditions was carried out with 141 people living with leprosy and lymphatic filariasis and matched controls.

Integrated services for neglected tropical diseases and mental health: pilot study assessing acceptability, feasibility and attitudes in Benue State, Nigeria.

Background: The World Health Organization recommends person-centred and integrated care for mental health of people with Neglected Tropical Diseases. This study assesses the feasibility and acceptability of mental health care for people with NTDs, which integrated mental health care into primary health care services, in central Nigeria.

Methods: People affected by NTDs were screened for depression and anxiety, and those identified referred to the integrated service.

The plant toxin 4-methylsulfinylbutyl isothiocyanate decreases herbivore performance and modulates cellular and humoral immunity.

Insect herbivores frequently encounter plant defense molecules, but the physiological and ecological consequences for their immune systems are not fully understood. The majority of studies attempting to relate levels of plant defensive chemistry to herbivore immune responses have used natural population or species-level variation in plant defensive chemistry. Yet, this potentially confounds the effects of plant defense chemistry with other potential plant trait differences that may affect the expression of herbivore immunity.