Insect & Spider

Identifying trends in reporting on the ethical treatment of insects in research

Transparent reporting on the ethical treatment of research animals (e.g., implementation of the 3Rs, replace, reduce, and refine) is recommended when publishing in peer-reviewed literature. This is meant to foster public trust, safeguard animal welfare, and generate reproducible science. However,...

Year Published: 2025Topics: Regulations & Ethical ReviewAnimal Type: Insect & Spider, Invertebrate

Citation: Perl, C. D., Kissinger, C., Godfrey, R. K. et al. 2025. Identifying trends in reporting on the ethical treatment of insects in research. PLOS ONE 20(8), e0328931.

Tarantula welfare may be improved with greater environmental complexity: A preliminary behavioral study with Brazilian black tarantulas (Grammastola pulchra)

Increased environmental complexity has positive effects on the welfare status of vertebrates living in human care; however, this line of research has received little focus in invertebrates. Here we conducted a preliminary investigation of Brazilian black tarantula (Grammastola pulchra) behavior...

Year Published: 2024Topics: Environmental Enrichment, Husbandry & ManagementAnimal Type: Insect & Spider, Invertebrate

Citation: Stalter, L., Dorleus, T., Milone, N. et al. 2024. Tarantula welfare may be improved with greater environmental complexity: A preliminary behavioral study with Brazilian black tarantulas (Grammastola pulchra). PLOS ONE 19(12), e0314501.

Lighting and behaviour in captivity: Butterflies prefer light environments containing UV wavelengths

The behaviour and welfare of animals in captivity is of great importance to zoological collections, captive breeding programmes, food production and keepers of companion animals. Artificial lighting is commonly deficient in UV wavelengths, and use of such lighting for indoor...

Year Published: 2024Topics: Husbandry & ManagementAnimal Type: Insect & Spider, Invertebrate

Citation: Thomas, R. K., Gay, A. P., Gwynn-Jones, D. et al. 2024. Lighting and behaviour in captivity: Butterflies prefer light environments containing UV wavelengths. Animal Behaviour 214, 165–172.

Effect of larval handling on black soldier fly life history traits and bioconversion efficiency

In conclusion, the handling procedures used in the current study did not influence the life history traits of the black soldier fly. However, further studies are needed to evaluate if different experimental protocols on various scales, the colony strain or...

Year Published: 2024Topics: HandlingAnimal Type: Insect & Spider, Invertebrate

Citation: Loiotine, Z., Gasco, L., Biasato, I. et al. 2024. Effect of larval handling on black soldier fly life history traits and bioconversion efficiency. Frontiers in Veterinary Science 11.

The glass is not yet half empty: Agitation but not Varroa treatment causes cognitive bias in honey bees

Honey bees (Apis mellifera) are prone to judge an ambiguous stimulus negatively if they had been agitated through shaking which simulates a predator attack. Such a cognitive bias has been suggested to reflect an internal emotional state analogous to humans...

Year Published: 2017Topics: Emotion, Pain, & Sentience, Husbandry & Management, Welfare AssessmentAnimal Type: Insect & Spider, Invertebrate

Citation: Schlüns, H., Welling, H., Federici, J. R. et al. 2017. The glass is not yet half empty: Agitation but not Varroa treatment causes cognitive bias in honey bees. Animal Cognition 20(2), 233–241.

Aquatic and terrestrial invertebrate welfare

Invertebrates are a diverse group of animals that make up the majority of the animal kingdom and encompass a wide array of species with varying adaptations and characteristics. Invertebrates are found in nearly all of the world's habitats, including aquatic,...

Year Published: 2023Topics: Regulations & Ethical ReviewAnimal Type: Cephalopod, Insect & Spider, Invertebrate, Other Invertebrate

Citation: Lewbart, G. A., Zachariah, T. T. 2023. Aquatic and terrestrial invertebrate welfare. Animals 13(21), 3375.

Social makes smart: Rearing conditions affect learning and social behaviour in jumping spiders

There is a long-standing debate as to whether social or physical environmental aspects drive the evolution and development of cognitive abilities. Surprisingly few studies make use of developmental plasticity to compare the effects of these two domains during development on...

Year Published: 2017Topics: Social Housing & CompanionshipAnimal Type: Insect & Spider, Invertebrate

Citation: Liedtke, J., Schneider, J. M. 2017. Social makes smart: Rearing conditions affect learning and social behaviour in jumping spiders. Animal Cognition 20(6), 1093–1106.

Evaluation of targeted injections of ivermectin or potassium chloride for euthanasia of anesthetized thorny devil stick insects (Eurycantha calcarata)

Insects are commonly utilized in biomedical research and have become increasingly popular in museum collections and as pets. Despite this, objective evaluation of insect euthanasia is scarce. This study investigated the effectiveness of targeted injections of ivermectin or potassium chloride...

Year Published: 2023Topics: EuthanasiaAnimal Type: Insect & Spider, Invertebrate

Citation: Heniff, A. C., Gorges, M. A., Lewbart, G. A. et al. 2023. Evaluation of targeted injections of ivermectin or potassium chloride for euthanasia of anesthetized thorny devil stick insects (Eurycantha calcarata). Journal of Zoological and Botanical Gardens 4(1), 231–239.

Assessing the welfare of captive group-housed cockroaches, Gromphadorhina oblongonota

The welfare of invertebrates under human care is of growing concern, particularly with the increasing interest in insect farming as an environmentally sustainable means of producing food. Additionally, individual welfare monitoring systems can be time-consuming and impractical for larger groups,...

Year Published: 2023Topics: Welfare AssessmentAnimal Type: Insect & Spider, Invertebrate

Citation: Free, D., Wolfensohn, S. 2023. Assessing the welfare of captive group-housed cockroaches, Gromphadorhina oblongonota. Animals 13(21), 3351.

Mirror image stimulation could reverse social-isolation-induced aggressiveness in the high-level subsocial lactating spider

Conspecific aggressiveness often increases after social isolation for species that are not entirely solitary, and this increased aggression could also be reversed after resocialization. However, literature on this aggression plasticity refers to either permanently social or low-level subsocial species in...

Year Published: 2022Topics: Social Housing & CompanionshipAnimal Type: Insect & Spider, Invertebrate

Citation: Dong, B., Liu, J.-X., Quan, R.-C. et al. 2022. Mirror image stimulation could reverse social-isolation-induced aggressiveness in the high-level subsocial lactating spider. Animal Cognition 25(5), 1345–1355.