The Diversity and Importance of Insects and Other Arthropods

Overview

Insects and other arthropods make up the vast majority of animal life on Earth with an estimated number of species ranging between 1 and 10 million making up over 80% of all animals. Insects and spiders, in particular, play an important ecosystem role as predators and food sources for other species with many species also having a large impact on us as either pollinators or vectors of disease. 

Despite their abundance and importance, they are often overlooked and underappreciated by the public. This course offers an engaging introduction to the extraordinary diversity in form and function of terrestrial arthropods focussing on insects and spiders. We will explore their fascinating ecology and behaviour through examples from around the world, while placing special emphasis on British species, including those commonly found in our homes and gardens. You will learn more about the benefits they bring to us as pollinators, pest controllers and as inspiration for novel biomimetic technologies and even as a sustainable food source, but we will also acknowledge their negative impacts on the agricultural economy and human health in their roles as crop pests and vectors for disease. We will be concluding the course with a visit to the Oxford Museum of Natural History, which is home to one of the largest insect collections outside of London. 

Programme details

Courses starts: 24 Feb 2026

Week 1: What are arthropods?

Week 2: The diversity of insects, spiders and other terrestrial arthropods

Week 3: The behaviour and ecology of notable insects and spiders

Week 4: The impact of insects on human society

Week 5: Visit to the Oxford Museum of Natural History

Certification

Digital badge

Upon successful completion of this course, you will be issued with an official digital badge from the Department for Continuing Education, University of Oxford. After the course, you will receive an email with a link and instructions on how to download your digital badge. You will be able to add your badge to your email signature and share it on social media if you choose to do so. In order to be issued with your badge, you will need to have attended at least 80% of the course.

Fees

Description Costs
Course fee £180.00

Funding

If you are in receipt of a UK state benefit, you are a full-time student in the UK or a student on a low income, you may be eligible for a reduction of 50% of tuition fees. Please see the below link for full details:

Concessionary fees for short courses

Tutor

Dr Thomas Hesselberg

Thomas is a zoologist who has studied terrestrial arthropods (mainly spiders and insects) for almost 20 years in both temperate and tropical climates. In addition to his teaching for the Department for Continuing Education, he is a senior research fellow at the Jersey International Centre of Advanced Studies.

Course aims

The aim of this course is to introduce participants to the incredible diversity, ecology, behaviour and relevance of insects and other arthropods. Through interactive sessions, the course will foster greater appreciation for these often-overlooked organisms and the many ways they benefit us. 

Course objectives:

  • To provide an overview of the terrestrial arthropods and their diversity.
  • To highlight particular interesting and important species from both temperature and tropical ecosystems.
  • To raise awareness of the many ways that insects benefit us as a society, while also acknowledging their negative impacts.

Teaching methods

The course will be taught with a combination of interactive lectures and group discussions and activities, with the last session taking place in the Oxford University Museum for Natural History, where participants will have a chance to learn more about the museum's insect collections and present on an arthropod taxon of their choice. 

Learning outcomes

At the end of this course, participants will be able to:

  • Describe the major groups of arthropods, including their key features and evolutionary relationships.

  • Identify common and notable insects and spiders, and understand basic insect life cycles and adaptations.

  • Identify threats to arthropod diversity and understand the consequences of their decline for ecosystems and society.

  • Discuss the complex relationships between arthropods and humans, including their roles as pests, pollinators, and providers of ecosystem services.

  • Find and understand scientific literature in zoology and ecology.

Assessment methods

This course is non-accredited, so there are no assessments.

Application

Please use the 'Book now' button on this page. Alternatively, please complete an Enrolment form for short courses | Oxford University Department for Continuing Education

Level and demands

The Department's Weekly Classes are taught at first year undergraduate level.