Diversidad de artrópodos asociados a esporomas de dos especies de Cortinariaceae (Fungi, Basidiomycota) en el Centro Sur de Chile.
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Date
2025
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Universidad de Concepción
Abstract
Los boques nativos de América del Sur constituyen una reserva mundial de biodiversidad, debido a su alto grado de endemismo, en especial los organismos del Reino Fungi de la familia Cortinariaceae donde tenemos las especies Cortinarius lebre y Dermocybe nahuelbutensis. Los macro hongos efímeros que crecen sobre el suelo pueden ser forrajeados por una gran diversidad de artrópodos (ácaros, colémbolos, dípteros, etc). En Chile faltan estudios sobre las asociaciones hongo-artrópodo, debido a esto que surgen las siguientes preguntas: ¿Existen artrópodos asociados a especies de la familia Cortinariaceae presente en el suelo del bosque de Nothofagus de Campus Naturaleza? Y si existen, ¿Hay diferencias en la composición taxonómica entre las especies del género Cortinarius y Dermocybe? Nuestra hipótesis señala que el objetivo de este estudio es determinar la fauna de artrópodos asociada a macrohongos de las especies C. lebre y D. nahuelbutensis del Bosque Nativo de Nothofagus de la zona centro-sur de Chile (Campus Naturaleza). Se recolectaron esporomas en 3 zonas del Campus y se obtuvo la composición taxonómica con un total de 69 individuos (7 ordenes) en C. lebre y 347 individuos (4 ordenes) para D. nahuelbutensis. Existe diferencia de diversidad entre las especies teniendo más diversidad C. lebre, sin embargo, es necesario más investigación al respecto.
Native forests in South America constitute a global biodiversity reserve due to their high degree of endemism, especially among organisms from the Fungi Kingdom of the Cortinariaceae family, where we find the species Cortinarius lebre and Dermocybe nahuelbutensis. Ephemeral macrofungi that grow above the ground can be foraged by a wide variety of arthropods (mites, springtails, diptera, etc.). In Chile, studies on fungal-arthropod associations are lacking, which raises the following questions: Are there arthropods associated with species of the Cortinariaceae family present in the soil of the Nothofagus forest at Campus Naturaleza? And if so, are there differences in the taxonomic composition between species of the genera Cortinarius and Dermocybe? Our hypothesis states that the objective of this study is to determine the arthropod fauna associated with macrofungi of the species C. lebre and D. nahuelbutensis from the Native Nothofagus Forest in south-central Chile (Campus Naturaleza). Sporomes were collected from three areas of the Campus, and the taxonomic composition was obtained with a total of 69 individuals (7 orders) in C. lebre and 347 individuals (4 orders) for D. nahuelbutensis. There is a difference in diversity between the species, with C. lebre having a greater diversity; however, further research is needed.
Native forests in South America constitute a global biodiversity reserve due to their high degree of endemism, especially among organisms from the Fungi Kingdom of the Cortinariaceae family, where we find the species Cortinarius lebre and Dermocybe nahuelbutensis. Ephemeral macrofungi that grow above the ground can be foraged by a wide variety of arthropods (mites, springtails, diptera, etc.). In Chile, studies on fungal-arthropod associations are lacking, which raises the following questions: Are there arthropods associated with species of the Cortinariaceae family present in the soil of the Nothofagus forest at Campus Naturaleza? And if so, are there differences in the taxonomic composition between species of the genera Cortinarius and Dermocybe? Our hypothesis states that the objective of this study is to determine the arthropod fauna associated with macrofungi of the species C. lebre and D. nahuelbutensis from the Native Nothofagus Forest in south-central Chile (Campus Naturaleza). Sporomes were collected from three areas of the Campus, and the taxonomic composition was obtained with a total of 69 individuals (7 orders) in C. lebre and 347 individuals (4 orders) for D. nahuelbutensis. There is a difference in diversity between the species, with C. lebre having a greater diversity; however, further research is needed.
Description
Tesis presentada para optar al título de Biólogo/a.
Keywords
Nothofagus, Bosque nativo, Micorriza