Publications by authors named "H Yama"
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychological and situational factors (for example, the intent of the agent or the presence of physical contact between the agent and the victim) can play an important role in moral dilemma judgements (for example, the trolley problem).
View Article and Find Full Text PDFBecause animal feces contain organic matter and plant seeds, dung beetles (Scarabaeinae) are important for the circulation of materials and secondary seed dispersal through burying feces. Dung beetles are usually generalists and use the feces of various mammals. Additionally, the larval stages have access to feces from only one mammal species leaving them susceptible to changes in animal fauna and variations in animal populations.
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- Overgrazing by large herbivores, like deer, significantly impacts ecosystems, particularly affecting insect populations that rely on grazed plants for food and habitat.
- A study conducted at Lake Toya in Hokkaido, Japan, compared the wing morphology of 13 moth species from two different sites: one heavily grazed by deer (Nakajima Island) and one where deer are less abundant (lakeshore).
- Results showed that moths from the island had smaller wings and altered aspect ratios, suggesting that overgrazing and habitat isolation may influence moth morphology, potentially affecting their population dynamics and community interactions.