The data represent the growth rates and carbon accumulation among different tree species. Tree censuses were conducted in November 2020, September 2021, and September 2022. Carbon accumulation data are available for 2021 and 2022. Data were collected from 15 plots across Wytham Woods, near Oxford in southern England, to measure the accumulation of carbon (MgC/ha/year) among tree species and size classes from three experimental plot types (15 plots in total, five plots per type). The plot types include ash dominated (AD), ash dominated where ash trees have been girdled (ADG), and non-ash dominated (NAD) plots. The data contributed to a project on the ecological impact of ash dieback and were used to quantify the growth rates, and carbon accumulation, among habitats with varying levels of ash dieback represented by different treatments. Full details about this dataset can be found at https://doi.org/10.5285/fc00dbd0-bf3d-495e-9895-190919f8e5e8

The data include daily soil temperature, ground temperature, and ambient temperature in Celsius and soil volumetric moisture in percent between 2019 and 2022, collected from 15 plots across Wytham Woods, near Oxford in southern England. These cover three different habitat types representing different levels of ash dieback: ash dominated and girdled, ash dominated, and non-ash dominated. Soil and ground microclimate (temperature and volumetric moisture) were recorded at 15-minute intervals, and averaged to daily resolution. The data contributed to a project on the ecological impact of ash dieback. Full details about this dataset can be found at https://doi.org/10.5285/f1fd1790-0cc0-45ea-8dda-8258d23e88b1

This dataset contains first egg dates for great tits (Parus major) and blue tits (Cyanistes caeruleus) from Monks Wood, Brampton Wood and Wennington Wood in Cambridgeshire, England, over a 23 year period. The dataset runs from the breeding season in 1993 to the end of the breeding season in 2015. The first egg dates are presented as the number of days from the start date which was set as the 1st April each year. Because the timing of breeding of great tits and blue tits is influenced in large part by ambient temperature and the phenology of their main prey, the data were collected as a measure of spring phenology. These data comprise part of a larger long-term study of the influence of habitat (extent, structure and composition) and landscape factors on abundance, distribution and breeding success of woodland birds in English lowland deciduous woodland. Full details about this dataset can be found at https://doi.org/10.5285/2efa9bf4-e5c0-42f9-8fcb-90dca2bb9c66

The dataset contains time series observations of turbulent surface-atmosphere exchanges of sensible heat (H) and momentum (τ) measured at an area of ancient broadleaved deciduous forest in Oxfordshire, UK (Wytham Woods). Turbulent flux densities were monitored from the top of a forest tower using the micrometeorological eddy covariance (EC) technique between 2014-06-13 13:00 and 2016-01-04 22:00. The dataset includes ancillary weather and soil physics observations, as well as variables describing atmospheric turbulence and the quality of the turbulent flux observations. Data were collected by staff from the Centre for Ecology & Hydrology, Wallingford. Full details about this dataset can be found at https://doi.org/10.5285/9b9ae2fe-e545-4209-b35f-e2ef6231dfe6