Are Growth Bands in Macadamia integrifolia Annual?

IF 1.8 4区环境科学与生态学 Q3 ECOLOGY

Ecological Management & Restoration Pub Date : 2026-07-05 DOI:10.1111/emr.70059

Kathryn Allen, Denise Bond, Quan Hua, Vladimir Levchenko, Ian McConachie

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Abstract

Although two of the four Australian endemic Macadamia species are well known as horticultural crops, little is understood about their use by First Nations peoples or their longevity. Robust age estimation of the age attainable by Macadamia integrifolia would help inform conservation planning and cultivation. Here we use AMS¹⁴C dating to scientifically that a single macadamia tree can live for > 100 years. We suggest, based on AMS¹⁴C dating of our samples, that simple band counting may be insufficient for estimating age, although more samples are required to fully test this preliminary finding. Our findings represent a first step in understanding the longevity of this vulnerable species, information necessary for developing conservation plans consistent with The National Recovery Plan for Macadamia. Further work should include testing additional samples to determine whether band counts can reliably provide age information that may be used to better inform management and conservation planning.

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澳洲坚果的生长带是一年生的吗？

尽管澳大利亚特有的四种澳洲坚果中有两种是众所周知的园艺作物，但人们对第一民族使用它们或它们的寿命知之甚少。对澳洲坚果可达到的年龄进行可靠的年龄估计将有助于为保护规划和种植提供信息。在这里，我们用AMS14C测年法科学地证明了一棵澳洲坚果树可以活100年。我们认为，基于样品的AMS14C测年，简单的波段计数可能不足以估计年龄，尽管需要更多的样品来充分验证这一初步发现。我们的发现是了解这种脆弱物种寿命的第一步，是制定与澳大利亚国家恢复计划一致的保护计划所必需的信息。进一步的工作应该包括测试更多的样本，以确定频带计数是否可以可靠地提供年龄信息，从而更好地为管理和保护规划提供信息。

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来源期刊

Ecological Management & Restoration Environmental Science-Management, Monitoring, Policy and Law

CiteScore

4.20

自引率

0.00%

发文量

期刊介绍： Ecological Management & Restoration is a peer-reviewed journal with the dual aims of (i) reporting the latest science to assist ecologically appropriate management and restoration actions and (ii) providing a forum for reporting on these actions. Guided by an editorial board made up of researchers and practitioners, EMR seeks features, topical opinion pieces, research reports, short notes and project summaries applicable to Australasian ecosystems to encourage more regionally-appropriate management. Where relevant, contributions should draw on international science and practice and highlight any relevance to the global challenge of integrating biodiversity conservation in a rapidly changing world. Topic areas: Improved management and restoration of plant communities, fauna and habitat; coastal, marine and riparian zones; restoration ethics and philosophy; planning; monitoring and assessment; policy and legislation; landscape pattern and design; integrated ecosystems management; socio-economic issues and solutions; techniques and methodology; threatened species; genetic issues; indigenous land management; weeds and feral animal control; landscape arts and aesthetics; education and communication; community involvement.