Population status and ecology of the globally threatened moss Ditrichum plumbicola Crundw. on the Isle of Man

IF 1.2 3区生物学 Q3 PLANT SCIENCES

Journal of Bryology Pub Date : 2022-12-21 DOI:10.1080/03736687.2022.2156756

D. Callaghan, Louise Samson

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引用次数: 2

Abstract

ABSTRACT Introduction. Ditrichum plumbicola Crundw. is a rare metallophyte that is threatened with global extinction. In this study, its population status and ecology on the Isle of Man were investigated. Methods. Surveys were carried out at all sites where the species may currently occur. Geographical coordinates of colonies were recorded using a GPS unit and counts made of occupied 1 m grid cells. Habitat and community composition were recorded by relevés. The chemical composition of occupied soil was also ascertained. Key results and conclusions. Two subpopulations of the species have occurred, associated with the two main ore bodies on the island. One of the subpopulations has become extinct. The other subpopulation comprises colonies at four nearby disused metal mines. It occurs at each in small quantity, with a total population of 47 occupied 1 m grid cells. The species is confined to open metalliferous spoil with high concentrations of lead. Solenostoma gracillimum is the only frequent associate. Management intervention to re-expose open metalliferous spoil will be required ultimately to save the species from extinction.

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全球濒危苔藓Ditrichum plumbicola Crundw的种群状况和生态。在马恩岛

摘要简介。铅垂穗霉。是一种罕见的金属植物，面临全球灭绝的威胁。在本研究中，对其在马恩岛的种群状况和生态进行了调查。方法。对目前可能出现该物种的所有地点进行了调查。使用GPS装置记录殖民地的地理坐标，并对被占领的1个进行计数 m网格单元。相关人员记录了生境和群落组成。还确定了被占用土壤的化学成分。关键结果和结论。该物种出现了两个亚群，与岛上的两个主要矿体有关。其中一个亚群已经灭绝。另一个亚群包括附近四个废弃金属矿的殖民地。它在每个地方都发生，数量很少，共有47人被占领1 m网格单元。该物种被限制在具有高铅浓度的露天含金属弃土中。Gracillium Solenotoma是唯一常见的并发症。最终需要管理干预，重新暴露开放的含金属弃土，以拯救该物种免于灭绝。

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来源期刊

Journal of Bryology 生物-植物科学

CiteScore

4.50

自引率

31.60%

发文量

审稿时长

3 months

期刊介绍： Journal of Bryology exists to promote the scientific study of bryophytes (mosses, peat-mosses, liverworts and hornworts) and to foster understanding of the wider aspects of bryology. Journal of Bryology is an international botanical periodical which publishes original research papers in cell biology, anatomy, development, genetics, physiology, chemistry, ecology, paleobotany, evolution, taxonomy, molecular systematics, applied biology, conservation, biomonitoring and biogeography of bryophytes, and also significant new check-lists and descriptive floras of poorly known regions and studies on the role of bryophytes in human affairs, and the lives of notable bryologists.