Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Collembola Communities Reflect Soil Recovery After Fire in Mediterranean Pinus pinaster Forests

Version 1 : Received: 9 January 2024 / Approved: 10 January 2024 / Online: 10 January 2024 (08:12:52 CET)

How to cite: Luciáñez, M.J.; Serena, A. Collembola Communities Reflect Soil Recovery After Fire in Mediterranean Pinus pinaster Forests. Preprints 2024, 2024010771. https://doi.org/10.20944/preprints202401.0771.v1 Luciáñez, M.J.; Serena, A. Collembola Communities Reflect Soil Recovery After Fire in Mediterranean Pinus pinaster Forests. Preprints 2024, 2024010771. https://doi.org/10.20944/preprints202401.0771.v1

Abstract

In the present work we have studied the short-term edaphic recovery of a burned pine forest of Pinus pinaster Aiton in Cerro del Castillo (Sierra de Guadarrama, Central Spain) in which a hydrological-forestry restoration was being carried out after the fire occurred in July 2022. For this purpose, variations in physicochemical properties (conductivity, relative humidity, organic matter and pH) and collembolan communities were analyzed by comparing the soils of a natural pine forest and a burned pine forest during the 24 weeks after the fire in 3 different samplings. With the data obtained, a series of diversity indices were calculated and statistical analyses such as ANOVA, hierarchical classification and principal component analysis were developed, with the aim of understanding in greater depth the recovery of collembolan populations, the changes in these physicochemical variables and the relationships between both parameters. This study shows how the fire reduced the amount of organic matter and water, and increased soil pH and conductivity, affecting edaphic fauna populations. In the short term, there was an increase in relative humidity and a decrease in electrical conductivity. The edaphic fauna communities of the burned pine forest increased their diversity and equity without reaching the values of the natural pine forest. At the specific level, however, the springtail populations matched the richness and even reached a very slightly higher Shanon-Wiener diversity index than that the natural pine forest populations in just 24 weeks. Finally, it was observed that the samples from the burned pine forest with recovered collembolan populations had the closest physicochemical parameters to those of the natural pine forest.

Keywords

Collembola; edaphic communities recovery; Alpha diversity indexes; burned forest; removal and burning of wood after fire

Subject

Biology and Life Sciences, Ecology, Evolution, Behavior and Systematics

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