A global forum on ultramafic ecosystems: from ultramafic ecology to rehabilitation of degraded environments

Echevarria, Guillaume; Baker, A. J. M.; Boyd, Robert S.; Ent, Antony van der; Mizuno, Takafumi; Rajakaruna, Nishanta; Sakaguchi, Shota; Bani, Aïda

doi:10.1007/s11284-018-1611-3

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Serpentine soil is an edaphically stressful, low productivity soil type that typically hosts stunted vegetation along with a great degree of plant endemism (Brady et al, 2005; Echevarria et al, 2018; Rajakaruna & Boyd, 2014). Although there is considerable variation in the features of serpentine habitats, they are often characterized by shallow soil resulting in a reduced capacity to retain moisture (Brady et al, 2005; Kruckeberg, 2002).…”

Section: Introductionmentioning

confidence: 99%

Nickelophilic root foraging by the nickel hyperaccumulator, Streptanthus polygaloides subsp. undulatus (Brassicaceae)

Mincey,

Boyd

2024

Ecological Research

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Root foraging may allow hyperaccumulator plants to enhance element accumulation. This study compared root proliferation of two annual serpentine endemics: Streptanthus polygaloides (Ni hyperaccumulator) and Streptanthus insignis (nonhyperaccumulator). In a greenhouse experiment, pots were divided by a sealed partition, Ni‐amended soil (800 mg kg −1) in one half, unamended soil in the other. Seeds were germinated over the partition, allowing roots to explore both soils. After 5 months, roots from each side of each pot were harvested, washed, dried, and weighed. Streptanthus polygaloides root biomass was significantly (twofold) greater in Ni‐amended soil whereas S. insignis root biomass was similar in the two soils. In a lab experiment, seedlings were grown in vertical agar‐filled petri dishes to determine if Ni affected seedling root growth. Seedlings were placed on either side of a central filter paper strip soaked in either NiCl2 solution or deionized water. Growth direction of the primary root (toward, away, neutral) and lateral root numbers and lengths were recorded. For seedlings, primary root direction and lateral root numbers/lengths were significantly increased toward Ni‐soaked filter paper only for S. polygaloides. We conclude that S. polygaloides exhibited positive root foraging responses. These may enhance Ni uptake and we suggest the term “nickelophilic root foraging” be applied to this behavior.

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Section: Introductionmentioning

confidence: 99%

Nickelophilic root foraging by the nickel hyperaccumulator, Streptanthus polygaloides subsp. undulatus (Brassicaceae)

Mincey,

Boyd

2024

Ecological Research

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“…The collective scientific expertise of participants in these conferences is broad, ranging from soil science to evolutionary ecology and conservation to applied agronomy. Each conference has been held in an ultramafic region with outstanding biodiversity: California, USA in 1991 (Baker et al, 1992), New Caledonia in 1995 (Jaffré et al, 1997), South Africa in 1999 (Balkwill, 2001), Cuba in 2003 (Boyd et al, 2004), Italy in 2006 (Chiarucci & Baker, 2007), Maine, USA and Québec, Canada in 2008 (Rajakaruna & Boyd, 2009), Portugal in 2011 (with five articles that appeared in the journal Plant Ecology and Diversity ), Malaysia in 2014 (van der Ent et al, 2015), and Albania in 2017 (Echevarria et al, 2018). The 10th ICSE was held in France on 12–16 June, 2023, 6 years after the previous edition, and hosted 126 delegates from 29 countries.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in the study of serpentine plants and ecosystems: Perspectives from the 10th International Conference on Serpentine Ecology, France

van der Ent,

Sakaguchi,

Boyd

et al. 2024

Ecological Research

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The 10th International Conference on Serpentine Ecology was held in Nancy, France on 12–16 June, 2023. As a major international scientific forum in the field of serpentine (ultramafic) ecology, this conference brings together botanists, zoologists, microbiologists, physiologists, geneticists, geologists, soil scientists, and other applied specialists studying the ecology of ultramafic rocks and soil. A notable aspect of these meetings is the multidisciplinary nature of research on ultramafic biota, including diversity, ecology, evolution, physiology, and applied research in phytotechnologies and conservation. The main goals of the conference were to create a platform for the exchange of ideas and experiences and to promote scientific dialogue among scientists from numerous fields who share expertise in the study of ultramafic habitats worldwide. In this Special Issue we present the major topics and provide some highlights of the contributions to the 10th International Conference on Serpentine Ecology.

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“…Interestingly, the soil diversity of ultramafic ecosystems immensely varies since it is located in a region with a wide environmental gradient in topography and rainfall (Minasny et al 2010;Siebecker et al 2017;Marescotti et al 2019). The high soil diversity also correlates with various growth performance of its vegetation since there is an interaction between soil characteristics and vegetation performance (Ibáñez et al 2014;van der Ent et al 2015;Echevarria et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Soil diversity influences on oil palm productivity in ultramafic ecosystems, Southeast Sulawesi, Indonesia

et al. 2020

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Abstract. Alam S, Purwanto BH, Hanudin E, Putra ETS. 2020. Soil diversity influences oil palm productivity in ultramafic ecosystems, Southeast Sulawesi, Indonesia. Biodiversitas 21: 5521-5530. Ultramafic is a unique ecosystem with an environmental gradient due to its high soil diversity. Understanding soil diversity in ultramafic ecosystems is fundamentally required to support sustainable agriculture management, particularly in oil palm plantation. This study investigated the relationship between soil diversity and productivity of oil palm in ultramafic ecosystems, Southeast Sulawesi. The soil survey has taken in Oheo, Langgikima, and Routa districts. Soil sample was collected from various toposequence, including upper, middle, and lower slope to describe soil properties, including soil texture, pH, CEC, SOC, TN, Av-P, Exc-K, Exc-Ca, and Exc-Mg. Whilst observation of oil palm productivity was done by recording the fresh-weight of fruit yield in hectare unit during a month. The results showed that the soil characteristics from the three sites were significantly different in soil texture, pH, CEC, Av-P, Exc-Ca, and Exc-Mg. A similar trend was also recorded in oil palm productivity wherein the highest oil palm productivity was discovered in Oheo (556.41+96.26 kg ha-1), followed by Langgikima (501.11+54.84 kg ha-1) and Routa (163.19+17.55 kg ha-1). Our study founded: pH, CEC, Av-P, Exc-K, Exc-Ca, and Exc-Mg significantly affected the productivity of oil palm. Based on these results, the soil diversity highly affected oil palm productivity in ultramafic ecosystems.

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A global forum on ultramafic ecosystems: from ultramafic ecology to rehabilitation of degraded environments

Cited by 5 publications

References 39 publications

Nickelophilic root foraging by the nickel hyperaccumulator, Streptanthus polygaloides subsp. undulatus (Brassicaceae)

Nickelophilic root foraging by the nickel hyperaccumulator, Streptanthus polygaloides subsp. undulatus (Brassicaceae)

Recent advances in the study of serpentine plants and ecosystems: Perspectives from the 10th International Conference on Serpentine Ecology, France

Soil diversity influences on oil palm productivity in ultramafic ecosystems, Southeast Sulawesi, Indonesia

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