New records and rediscoveries of plants in Singapore

Lim, Reuben C. J.; Lindsay, Stuart; Middleton, David J.; Ho, Boon‐Chuan; Leong, P.K.F.; Niissalo, Matti A.; Welzen, P.C. van; Esser, Hans‐Joachim; Ganesan, S.; Lua, H.K.; Johnson, David M.; Murray, Nancy A.; Leong‐Škorničková, Jana; Thomas, D.C.; Ibrahim, Ali

doi:10.26492/gbs70(1).2018-08

Cited by 6 publications

(5 citation statements)

References 11 publications

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“…In comparison, recent studies reporting new records in tropical regions list fewer species, e.g. 11 new records in Singapore (Lim et al 2018), 23 from Shan state in Myanmar (Kang et al 2018), or 55 from Santa Catarina, Brazil (Funez et al 2017). Those studies focus on a single region, whereas our study combines the work of several groups working in Angola, thus providing more new floristic knowledge at once.…”

Section: Discussionmentioning

confidence: 82%

Sixty-seven species newly recorded for the flora of Angola: recent findings from vegetation surveys and herbarium collections

Lautenschläger¹,

Göhre²,

Ditsch³

et al. 2022

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Angola is a tropical country with many biogeographical units and, therefore, has a high floristic diversity. Although an increasing number of floristic studies has been carried out in Angola in recent years, the country is still considered to be underinvestigated as many species being collected were previously unknown there. Several scientific groups working in different parts of Angola contributed to this paper their data from biodiversity assessments. With this we can add 67 species newly recorded for Angola, including two new generic records and five alien species, to the almost 7,300 vascular plant taxa known so far for Angola. Most of the new records for Angola are also present in different neighbouring countries, but they are little known, and their IUCN threat status has not been assessed yet. However, ongoing fieldwork and exploration are needed to complete the floristic knowledge of the understudied country.

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Section: Discussionmentioning

confidence: 82%

Sixty-seven species newly recorded for the flora of Angola: recent findings from vegetation surveys and herbarium collections

Lautenschläger¹,

Göhre²,

Ditsch³

et al. 2022

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Section: Resultsmentioning

confidence: 99%

“…The 2012 peak in rediscoveries is mostly due to the publication byChong et al (2012) of rediscoveries based on specimens collected from 2009 to 2012. Peaks in both rediscoveries and new records were observed in 2018, of which about half can be attributed to the publication of collated results from comprehensive field surveys (e.g.,Chong et al, 2018;Ho et al, 2018;Khoo et al, 2018;Lim et al, 2018) and the other half to precursor publications of the Flora of Singapore, mainly resulting from the redetermination of pre-existing specimens (e.g.,Seah & Wong, 2018;Turner, 2018;Wong & Mahyuni, 2018).The 2022 peak in rediscoveries mostly consists of those published inLindsay et al (2022), which were based on even more recent specimens such as those collected for a genome-sequencing project of the native vascular plants of the BTNR(Niissalo & Choo, 2021), and also those made by taxonomic specialists redetermining specimens for the Flora of Singapore project.Determining the site of the first collection of the rediscoveries and new records can suggest where further surveys should be targeted (Figure2d). The same sites were important for the rediscoveries and new records: the highest number of collections were from the lowland primary rain forest fragment of the BTNR (44 rediscoveries, 22 new records), followed by the last substantial area of freshwater swamp forest remaining in Singapore, the Nee Soon Swamp Forest (NSSF; 43 rediscoveries, 17 new records), and the rest of the CCNR (excluding the NSSF) that comprises a mixture of primary and nativeF I G U R E 2 Summary statistics of plant rediscoveries and new native records for Singapore in the last 14 years.…”

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confidence: 99%

A botanical oasis rather than a biological desert: Rediscoveries, new species and new records in a tropical city

Neo,

Chong,

Lindsay

et al. 2024

Plants People Planet

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Societal Impact StatementCities present a unique challenge for conservation. While overall native biodiversity is reduced, remnant habitats in the urban matrix can be important refugia for native and endemic species. This study reviews the rediscovery of 173 presumed nationally extinct plant taxa and discovery of 155 new native plant records, including 22 new to science and five endemics, in the botanically densely‐collected tropical city‐state of Singapore. The findings of this study indicate that plant rediscoveries and new discoveries are still possible in cities and urban areas with remaining fragments of original forest reserved for species protection, and investment in comprehensive botanical surveys and taxonomic research.Summary The conservation of native species‐dominated forest fragments and investment into botanical surveys and taxonomic research have enabled the rediscovery of presumed nationally extinct plant taxa and discovery of new native plant records in the tropical city‐state of Singapore. We compared national plant checklists of 2009, 2022, and the national Red Data Book (third edition in press) to enumerate rediscovered and newly discovered native vascular plant taxa in the last 14 years. We examined if these were from taxonomic specialist redetermination of only pre‐existing specimens or newly collected from field surveys, and if they were from particular sites and vegetation types, disproportionately represented by certain life forms and families, and predominantly threatened. We documented 173 rediscoveries and 155 new records after 2009, including 22 new to science and five endemics. Most rediscoveries were newly collected from field surveys, but most new records resulted from redetermination of pre‐existing specimens. Native species‐dominated forest fragments were the most important sites for the first collection of new records or first re‐collection of rediscoveries. Trees and climbers were well‐represented among the rediscoveries and new records. Epiphytes were significantly under‐represented compared to their proportion in the presumed nationally extinct flora. Most rediscoveries and new records are nationally Critically Endangered but regionally and globally not assessed. Our findings indicate hope for the persistence of rare native plant species and opportunities for conservation in cities.

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“…& Thomson) Rauschert and Phyllanthus reticulatus Poir.) published by Lim et al (2018) as new to Singapore. Bryophytes of BTNR were reviewed by Wee & Mohamed (1995) who listed 15 liverworts and 48 mosses.…”

Section: Plantsmentioning

confidence: 99%

Synthesis of results from the Comprehensive Biodiversity Survey of Bukit Timah Nature Reserve, Singapore, with recommendations for management

Chan¹,

Davison²

2019

GBS

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Twenty-two papers arising from the Comprehensive Biodiversity Survey of Bukit Timah Nature Reserve (BTNR), Singapore (2014-2018) have provided a thorough update and expansion of information on many groups of flora and fauna. In spite of the small size and isolation of BTNR there is still remarkable diversity, and new records and new species continue to accumulate. A large body of information on the terrestrial and aquatic physical environment is now available, providing a context for many of the biological results. Various management recommendations emerge.

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New records and rediscoveries of plants in Singapore

Cited by 6 publications

References 11 publications

Sixty-seven species newly recorded for the flora of Angola: recent findings from vegetation surveys and herbarium collections

Sixty-seven species newly recorded for the flora of Angola: recent findings from vegetation surveys and herbarium collections

A botanical oasis rather than a biological desert: Rediscoveries, new species and new records in a tropical city

Synthesis of results from the Comprehensive Biodiversity Survey of Bukit Timah Nature Reserve, Singapore, with recommendations for management

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