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\section{Introduction}  Wildfires are a global phenomenon that produces severe impacts \cite{Luke1978, Conard1997, Morton2003}. Catastrophic wildfire events claim lives \cite{Haynes2008,Haynes2010}, degrade the environment \cite{Shakesby1993,Stephens2004, Lane2010} and destroy building infrastructure \cite{Morton2003, McAneney2009,Crompton2010}. Wildfires also contribute to biodiversity loss \cite{Kodandapani2008,Pastro2011} and affect the climate \cite{Conard1997}. They are part of the natural evolution of vegetation ecosystems \cite{Bradstock2012}. However, human actions amplify the impact over people, nature and infrastructure \cite{Pausas2011}. In fact, wildfires have an a strong  anthropogenic ignition pattern. In addition, population growth in rural areas increase human vulnerability to this hazard. The threat of wildfires have encouraged extensive research on the behavior of its precursors. Weather is one of the key components that contributes to wildfire activity \cite{Powell1983, Williams1999, Mills2005, Haines, Mccaw2007, Dowdy2012, Engel2013}. Wildfire weather refers to the meteorological influence over wildfires over a period of days. Common variables associated with wildfire weather are temperature, relative humidity, wind speed and precipitation \cite{BoM2009}. Each variable exerts influence in the liberation of water content in vegetation. This process —Evapotranspiration— controls the availability of fuels to be burnt. Most of the research conducted on wildfires and climate focuses on this daily approach. Yet, the study of wildfire predictability on a seasonal scale is growing. A key factor to explore this perspective is El Niño Southern-Oscillation (ENSO) \cite{Swetnam1983, Simard1985a, Kitzberger2002, Beckage2003, Wooster2012}.   The relationship ENSO produces  negative rainfall ranifall  anomalies produced by a particular ENSO phase. in wildfire-prone regions.  These anomalies depend on the regional impact of ENSO over climate. These rainfall deficits exist over the months before —and during– the wildfire season. This influence increases may increase  by the superposition of the Inter-decadal Pacific Oscillation (IPO) \cite{A2004}. ENSO may even have an influence over ignition patterns. It could foster In some regions it fosters  the occurrence of lightning strikes \cite{Beckage2003}. This These  facts encourages encourage  the investigation of new studies of ENSO and wildfire danger. Variability and predictability in other regions in danger around  the world has attracted recurrent research attention. world.  The west coast of South America is one of the regions most affected by ENSO's influence over climate. The coastal areas of Peru and Ecuador usually receive massive rainfall during El Niño events \cite{Rodbell1999}. Yet, there has not been enough research on its influence over other natural hazards. Wildfires occur over the entire Andean region. However, studies about wildfire activity in the northern Andean region are scarce. This study aims to describe the seasonal variability of wildfire danger in Ecuador. Also, we investigate if there is a link between wildfires and ENSO in this region. This is important because wildfires occur every year in this country producing severe impacts \cite{MinisteriodelAmbiente2013, SecretariadeAmbiente2013}. A better understanding of wildfire danger variability and its causes can provide useful information. This insights could be of special interest to emergency response services and planning authorities.  
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