Assistant Ecologist

An assistant ecologist carries out wildlife surveys and writes up the findings so that building, infrastructure and land-management projects can go ahead legally and with less harm to protected species and habitats. Most work for environmental consultancies, advising developers, housebuilders, councils, utilities and transport bodies; a smaller number work for conservation charities, government agencies or in-house environment teams. The job is a mix of fieldwork (often at dawn, dusk or overnight, concentrated in spring and summer) and desk work writing reports, checking maps and data, and supporting senior ecologists on planning applications.

Starting salary: £22k–£28k
Live graduate jobs: 1 open now
Main way in: Direct application to an environmental consultancy as an…
They usually ask for: A degree in ecology, conservation, environmental science…

Approximate graduate salary

Typically around £22,000–£28,000 to start, though this varies widely by employer, region and sector - larger multidisciplinary consultancies and London or South East roles sit at the upper end, while charity and smaller-consultancy posts often sit at the lower end. Seasonal contracts are sometimes paid at or near the equivalent of entry rates, and overtime or time off in lieu for night surveys is handled very differently from employer to employer, so it is worth asking.

What you'd actually do

Walking a site and recording the habitats present using a standard methodology - in the UK this is usually UK Habitat Classification (UKHab), which replaced the older Phase 1 habitat survey - and noting features that could support protected species, such as trees with bat roost potential or ponds suitable for great crested newts
Taking part in species-specific surveys: dusk emergence and dawn re-entry bat surveys at buildings and trees, badger sett checks, breeding bird surveys at first light, reptile mat checks, newt surveys at ponds, water vole and otter searches along watercourses
Writing up survey results into reports - typically Preliminary Ecological Appraisals, protected species survey reports and chapters that feed into planning applications - usually drafting sections for a senior ecologist to review
Desk study work before a site visit: requesting records from the local environmental records centre, checking designated sites (SSSIs, SACs, local wildlife sites) within a given distance, and reviewing aerial imagery and old maps

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Entering field data into spreadsheets or apps, producing simple GIS maps of habitats and constraints, and doing Biodiversity Net Gain calculations using the statutory metric
Practical tasks on site supervising contractors - for example watching over vegetation clearance or careful demolition where protected species could be present (toolbox talks, 'watching briefs'), or helping install and check reptile fencing
A lot of driving, loading and unloading kit (bat detectors, thermal cameras, nets, mats), and coordinating with colleagues about who is covering which survey on which night during the peak season

How graduates get in

Direct application to an environmental consultancy as an assistant or graduate ecologist - by far the most common route. Many consultancies recruit in late winter and early spring to be staffed up for the survey season that runs roughly from spring to early autumn.
Seasonal or fixed-term 'field ecologist' or 'survey assistant' contracts covering a single survey season, then converting to a permanent assistant ecologist role. This is a very common way in and is often easier to get than a permanent job straight off.
A structured graduate scheme at one of the larger multidisciplinary engineering or environmental consultancies, where ecology sits alongside other environmental disciplines. These exist but are a minority of the market compared with direct entry.
Moving across from a conservation background - traineeships, ranger posts, reserve assistant roles or paid internships with wildlife trusts and conservation charities - into consultancy. Common, though the shift from conservation to commercial, deadline-driven work takes some adjustment.

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A specialist MSc (ecology, conservation, environmental consultancy, wildlife management) used as a top-up after a broader first degree. Useful but not essential, and it does not substitute for field experience.
Unusual but real: entry from a land-based or arboriculture background, or via an apprenticeship/technician route into an environmental team, then studying for ecology qualifications alongside work.

What employers ask for

A degree in ecology, conservation, environmental science, zoology, biology, geography or a closely related subject. The subject does matter here more than in many graduate jobs - employers expect you to already know species, habitats and basic survey methods. A 2:1 is commonly asked for but a 2:2 with strong field experience is often accepted.
A full UK driving licence. This is close to non-negotiable for consultancy roles because sites are scattered and surveys happen at antisocial hours when public transport is useless. Some employers will consider applicants working towards a licence; many will not.
Demonstrable field experience and species identification ability - volunteering with a wildlife trust, bat group, bird group, botanical recording, reptile surveys, or a dissertation with real fieldwork. Applications without any practical experience struggle regardless of grades.
Willingness to work unsociable hours and sometimes stay away from home during the survey season. Employers will ask about this directly.

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An MSc is common and sometimes preferred, but is not a universal requirement. Graduate membership of CIEEM (the Chartered Institute of Ecology and Environmental Management, the UK professional body) is usually expected or encouraged early on.
Protected species survey licences (for example a Natural England bat or great crested newt class licence) are not expected at entry - you normally build the logged experience towards them in the job - but any progress towards one strengthens an application a lot.

Skills that matter

Species and habitat identification in the field

You are paid to say what is present on a site, and getting a plant, bat call or bird song wrong can lead to flawed advice and legal risk for the client.

Clear, structured technical writing

Most of your output is reports that planning officers, clients and sometimes planning inspectors read, so findings have to be unambiguous and defensible without being padded.

Working knowledge of wildlife legislation and planning policy

Advice hinges on what the Wildlife and Countryside Act, the Habitats Regulations and protected species licensing actually require, and on Biodiversity Net Gain obligations in the planning system.

GIS and data handling

Habitat maps, constraints plans and the Biodiversity Net Gain metric all rely on accurate spatial data, and assistant ecologists usually do the first pass of this work.

Self-management and reliability in the field

You often survey alone or in a small pair at night in unfamiliar places, so planning access, lone-working checks, kit and timings without supervision is a core part of the job.

Explaining ecological constraints to non-ecologists

Site managers, engineers and developers need to understand why a roof cannot be stripped in June in terms that relate to their programme and costs, not in ecological jargon.

Putting these on a CV? We counted which skills 12,914 live graduate adverts ask for, and what to do with the answer — part of our application advice.

Where it leads

Assistant ecologist: supervised fieldwork, drafting report sections, building up logged survey experience. Typically a couple of years, though it varies by how much season work you get and how quickly you pick up licences.
Ecologist / consultant ecologist: running your own surveys and smaller projects, writing full reports in your own name, holding one or more Natural England survey licences, and starting to deal directly with clients.
Senior ecologist: leading projects and bids, checking other people's reports, managing budgets and junior staff, acting as technical lead on a discipline such as bats, botany or Biodiversity Net Gain. Chartered status with CIEEM (CEcol and/or CEnv) is usually targeted around this stage.
Principal ecologist, technical director or team leader: winning work, expert witness duties at planning inquiries, signing off high-risk advice, and running a team or office.
Sideways moves are common and not a step down: into local authority ecologist posts, statutory bodies such as Natural England, NatureScot or Natural Resources Wales, conservation charities, in-house environment teams at utilities or developers, or specialising in habitat creation, licensing or freelance survey work. Timelines vary widely - progression in consultancy tends to be faster than in the public or charity sector, which generally pay less but offer more stable hours.

What people get wrong

“It is mostly about conserving wildlife out in nature.”

Most assistant ecologist jobs sit in commercial consultancy, where you are advising a paying client - often a developer - on how to get a project through planning lawfully. You influence outcomes for wildlife, but within a chargeable-hours, deadline-driven business, and you may spend more of the year at a desk than in the field.

“It is outdoor work all year round.”

UK ecological surveys are heavily seasonal. Spring and summer are intense - long days, night work, travel and weekend surveys - and autumn and winter are dominated by report writing, desk studies, metric calculations and training. Many people find the winter desk stretch the harder half.

“A strong degree is what gets you hired.”

Employers weight practical field experience and a driving licence very heavily. A candidate with a 2:2, two seasons of bat group volunteering and a car is often more employable than a first-class graduate with no fieldwork.

“Ecologists can stop developments they disagree with.”

You gather evidence and recommend mitigation; the decision sits with the planning authority and the licensing regulator. Much of the job is finding workable ways for a scheme to proceed - timing works outside the bird nesting season, creating replacement habitat, obtaining a licence - rather than objecting.

Where this varies

The role differs a lot by employer type. In a small specialist consultancy you will be in the field constantly and given responsibility early, often across many species groups; in a large multidisciplinary engineering consultancy you may specialise sooner, do more Environmental Impact Assessment chapter work and spend more time in process and documentation. Local authority and statutory agency ecologists review other people's reports rather than producing them, with far less night work. Conservation charity roles focus on habitat management and monitoring rather than planning advice. There is also a geographic element: work in Scotland, Wales and Northern Ireland follows different legislation and licensing bodies from England, and Biodiversity Net Gain requirements are not identical across the four nations. Upland and offshore-adjacent work (wind farms, peatland, ornithology-heavy surveys) is more common in Scotland and parts of northern England, while southern England sees more housing-development work with bats, newts and reptiles.

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General guidance about the role across the UK market, not about any specific employer. Entry routes and requirements vary — always check the individual job advert.