2007 vole plague in Castile and León

2007 Vole Plague in Castile and León

The 2007 vole plague in Castile and León was a significant agricultural and ecological event that occurred in the region of Castile and León, Spain. The plague was characterized by an explosive increase in the population of the common vole (Microtus arvalis), which led to widespread damage to crops and raised concerns about public health and environmental impacts.

A vole in Campaspero

Background

The common vole is a small rodent that is native to Europe and is known for its rapid reproductive rate. Under favorable conditions, vole populations can increase dramatically, leading to what is known as a "vole plague." These conditions include mild winters, abundant food supply, and lack of natural predators.

In 2007, the region of Castile and León experienced such conditions, resulting in a massive increase in vole numbers. The outbreak was particularly severe in the provinces of León, Palencia, Burgos, and Zamora.

Impact on Agriculture

The vole plague had a devastating impact on agriculture in Castile and León. Voles feed on the roots and stems of plants, and their burrowing activity can destroy crops. The 2007 plague led to significant losses in cereal crops, vegetables, and vineyards.

Extent of vole plague in León

Farmers reported losses of up to 80% in some areas, and the economic impact was severe. The regional government estimated that the damage amounted to millions of euros, and emergency measures were implemented to support affected farmers.

Ecological and Public Health Concerns

The vole plague also raised ecological and public health concerns. The high density of voles led to increased predation by birds of prey and other predators, which could have long-term effects on local ecosystems.

There were also concerns about the potential spread of diseases carried by voles, such as tularemia, which can be transmitted to humans. Health authorities monitored the situation closely, and public health campaigns were launched to inform the public about the risks and preventive measures.

Control Measures

To control the vole population, a combination of methods was employed. These included the use of rodenticides, habitat management, and encouraging natural predators. The use of rodenticides was controversial due to potential environmental impacts, and efforts were made to minimize their use.

Extent of vole plague in Palencia

Aftermath and Lessons Learned

The 2007 vole plague highlighted the need for improved monitoring and management of vole populations in agricultural areas. It also underscored the importance of integrated pest management strategies that balance agricultural productivity with environmental conservation.

In the years following the plague, research efforts were intensified to better understand vole population dynamics and develop more sustainable control methods.

Related Pages

• Common vole
• Castile and León
• Integrated pest management
• Tularemia