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Marrying intensive farming with wildlife conservation

Arable productivity need not be compromised to make way for greater biodiversity, this year’s NIAB TAG Outlook Conference in Durham heard. Abby Kellett reports

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Marrying intensive farming with wildlife conservation #clubhectare #environment #allertonproject

Intensive farming is good for business and the environment, but needs to be done in the right way. In the UK, food production systems and biodiversity are interwoven and many wildlife species are dependent on farming and farmers.

 

That is according to head of the Allerton project, Dr Alistair Leake, who said: “With a rising population, productive farming needs to exist alongside wildlife conservation.

 

“Many species including barn owls, chaffinch and woodcock rely on farming, and therefore farmers can be hugely influential in aiding their survival.

 

“We believe farmers are an essential part of the solution, not just part of the problem.”

 

Since a large area of the country exists as farmland, setting land aside for conservation was unsustainable and a more integrated approach was required.

 

See also: Big Farmland Bird Count 2017 gets underway

 

“70 per cent of our land is farmed so we have to share our land with wildlife, not spare it by fencing areas off and turning them into nature reserves.”

Dr Leake

lack of productivity meant it could not support the growing demand for food.

 

“In my experience, organic farming led to a 40 per cent drop in production across the whole rotation, so for me, organic farming is not the way forward if we want to increase the country’s ability to be self-sufficient.

 

“While organic farming led to greater diversity due to the rotation, the way we grew our crops and the number of weeds, it was biodiversity by accident. But we can do much better than that when we design a wildlife system that exists alongside food production.”

 

Dr Leake also outlined some of the work done at the Allerton Trust’s Loddington Farm to reverse the decline in farmland bird numbers with compromising crop yields.

 

The work started in 1993 with the Songbird Recovery Project. One of the changes brought about as a result of the project was the introduction of a wildlife warden; someone responsible for enhancing wildlife habitats, feeding birds over winter and controlling target predators.

 

See also: Managing conservation practically and profitably together

 

In dedicating a member of staff to wildlife conservation, the estate saw a 100 per cent increase in songbird numbers.

 

Following on from this success, in 2001 the team launched the Wildlife Recovery Programme, with the aim of reversing the 25-year decline in farmland species.

 

In the first three years of the project, the estate successfully restored bird numbers back to where they were in the 1960’s.

 

In the same period, wheat yields increased by 0.4t/ha (1t/acre), higher than the national average.

 

Dr Leake said: “I was told that the 25-year decline in farmland bird numbers would take 25 years to recover, but when you know what you are doing, you can put that right much quicker.”

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To successfully revive bird populations, a three-pronged approach was necessary, whereby predators were controlled, winter feeding was provided and habitats were created. If any of these three elements were lacking, the rate of recovery was much slower, said Dr Leake.

 

A number of key findings have emerged from this work and have helped in the formulation of practical advice on boosting farmland bird populations (see box). But according to Dr Leake, there is more work still to be done.

 

For example, farmers need to ensure farmland birds are supplied with an appropriate feed source during the ‘hungry gap’ period, said Dr Leake.

 

Since most crops are bred to shed their seeds at harvest, by the time plants reach winter, most of their seeds have fallen out and are unavailable for farmland birds.

 

There was potential for valuable research in this area. “We want to be able to breed plants that have a trait whereby they bare seed for longer. In the meantime, we have to do this artificially using a feeder.”

 

Growers need to be as smart with their wildlife management as they are with their crop management, Dr Leake concluded.

Boosting bird numbers and maintaining yields

    • Identify which bird species are present and what they are feeding on

 

    • Field edges are a good place to locate winter feeding areas for birds

 

    • Managing feeding areas as crops can increase seed availability and benefit birds

 

    • Supplementary feeding is currently required to manage the ‘hungry gap’

 

    • Predator control can help boost farmland bird numbers

 

    • Consider nominating a ‘wildlife warden’ - someone responsible for enhancing wildlife habitats, feeding birds over winter and controlling target predators

 

Source: A Leake/Allerton Trust

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