Abstract

We investigate the plant composition in the Skuas nest at Hennequin Point, located in the Admiralty Bay Area, King George Island, Antarctica. Sample of 61 activity nests were analyzed. 21 plant and lichenized fungi species were found in the nest composition, being the mosses Sanioniauncinata (Hedw.) Loeske and Polytrichastrumalpinum (Hedw) G. S. Smith the most frequent species found in the Skuas nests. Usneaantarctica Du Rietz was the most frequent lichen and the grass Deschampsiaantarctica Desv was the most frequent flowering plant found in the nests. These results contribute for the environmental menagement of the Admiralty Bay area research activities.

Highlights

  • The Antarctic flora is composed mainly by mosses and lichens adapted to short summer periods and very low temperatures [1]

  • We investigate the plant composition in the Skuas nest at Hennequin Point, located in the Admiralty Bay Area, King George Island, Antarctica

  • The objective of the present study is to describe plant composition of Skuas nests at Hennequin Pont, King George Island, Antarctica

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Summary

Introduction

The Antarctic flora is composed mainly by mosses and lichens adapted to short summer periods and very low temperatures [1]. Such climatic conditions inhibit the reproductive cycle, limiting the occurrence of species, especially of flowering plants [2]. At Antarctic Peninsula Catharacta lonnbergi and Catharacta maccormicki breed sympatrically, often constituting mixed pairs with fertile hybryds [3,4,5]. It is the most abundant flying bird at Admiralty Bay, King George Island, distributed in almost all icefree areas.

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