Research Article |
Corresponding author: Michele Dani Sanchez ( drmdanisanchez@gmail.com ) Corresponding author: Colin Clubbe ( c.clubbe@kew.org ) Academic editor: Doug Evans
© 2021 Michele Dani Sanchez, Colin Clubbe, Nancy Woodfield-Pascoe, Sara Bárrios, Joseph Smith Abbott, Thomas Heller, Natasha Harrigan, Keith Grant, Cassander Titley-O'Neal, Martin Allen Hamilton.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Dani Sanchez M, Clubbe C, Woodfield-Pascoe N, Bárrios S, Smith Abbott J, Heller T, Harrigan N, Grant K, Titley-O'Neal C, Hamilton MA (2021) Tropical Important Plant Areas, plant species richness and conservation in the British Virgin Islands. Nature Conservation 45: 11-39. https://doi.org/10.3897/natureconservation.45.73544
|
The global loss of biodiversity is a pressing and urgent issue and halting loss is the focus of many international agreements and targets. However, data on species distribution, threats and protection are limited and sometimes lacking in many parts of the world. The British Virgin Islands (BVI), part of the Puerto Rican Bank Floristic Region in the Caribbean Biodiversity Hotspot, is rich in plant diversity and regional endemism. Despite the established network of National Parks in the BVI and decades of botanical data from international collaboration between the Royal Botanic Gardens,
Caribbean, Important Plant Areas (IPAs), in situ conservation, protected areas, threatened species
Nature is declining at an unprecedented rate and global wildlife populations have decreased by 68% since 1970 (
The Caribbean Region is estimated to contain 12% of the plant diversity and 29% of the medicinal plants (spermatophytes only) of the Americas in only 1% of the land area (
Identifying species diversity and distribution is key to protection and prevention of biodiversity loss at a global and local scale, as robust data are paramount for well-informed decisions on policy, conservation and species management. However, it is important not only to identify which plant species occur in an area, but also their vulnerability to threats (e.g. loss of habitat, invasive species, pests), protection (e.g. protected areas, legal status) and conservation importance (e.g. endemic species, keystone species) to reduce loss of biodiversity and protect global biodiversity hotspots (
IPAs consider not only species distribution and botanical richness of an area, but also prioritise those plants and habitats under threat by identifying a network of key sites for the conservation of wild plants and threatened terrestrial habitats (
The focus of IPAs identification has shifted recently to the tropics following a review of the IPAs guidelines (
Despite their importance, levels of legal protection of IPAs and TIPAs vary widely from nearly 100% in the UK to below 50% in parts of North Africa and the Middle East (
This work complements the TIPAs process in the BVI and previous botanical research by presenting and analysing species richness and distribution of the Species of Conservation Concern and globally threatened species across the archipelago using all available high resolution botanical data. For the first time, species representation within the BVI TIPAs and National Parks are discussed and gaps in in situ conservation identified. Further, we discuss the implications of these findings to future species management, plant conservation and policy in the BVI. These findings have implications for the wider Caribbean Region.
A target list of priority native plant species was compiled using baseline data from: 1) two decades of botanical work in the BVI by the National Parks Trust of the Virgin Islands (NPTVI); Royal Botanic Gardens,
A total of 3,688 high accuracy (+/- 10 m) georeferenced location records for 35 of the priority species were included in this analysis. Records were retrieved from the
Extinction risk assessments and re-assessments for 30 priority species were undertaken collaboratively by experts from
A series of workshops involving botanical experts, local conservation practitioners, Government representatives and community members, led by
The BVI national list of Species of Conservation Concern (a.k.a. species of high conservation importance) was agreed in 2018 and used in the TIPAs process (
The TIPAs Network for the BVI was identified and agreed in 2018. Detailed description of the TIPAs sites identified and mapped, including qualifying criteria, were published during the TIPAs process (
All species records were added to a bespoke Geographic Information System (GIS) project in ArcGIS Desktop software (ESRI, version 10.1, Redlands, CA, USA), containing layers for the TIPAs network and National Parks for the BVI to enable data visualisation, querying and mapping (
The 21 declared National Parks and eight Proposed National Parks used for the analyses presented in this paper correspond to the terrestrial National Parks in the BVI Protected Areas System Plan 2007–2017 (
The BVI list of Species of Conservation Concern contains 35 species, all of them previously identified as target priority species. The Species of Conservation Concern comprise the 25 species assessed as globally threatened, plus ten national endemics and/or restricted range species with qualifying EOO (Table
Map of TIPAs and terrestrial National Parks of the British Virgin Islands. Detailed maps at the bottom showing overlap of TIPAs and National Parks in those Islands. Abbreviations: Tropical Important Plant Areas (TIPAs), National Park (NP), Proposed National Park (Proposed NP).
A total of 3,143 records were from globally threatened species. The total number of records per species varied widely from one to over 900, with most species having < 40 records and two of the species, Vachellia anegadensis and Varronia rupicola (Urb.) Britton, having > 700 records (Table
Species of Conservation Concern, their threat status, distribution and occurrence in TIPAs and National Parks. All species names according to Plants of the World Online Portal (
Species | Family | IUCN assessment | Endemism | Total records | TIPAs present | NP present | PNP present |
---|---|---|---|---|---|---|---|
Agave missionum Trel. | Asparagaceae | VU | PRB | 220 | 11 | 4 | 2 |
Anthurium × selloanum K.Koch | Araceae | N/A | VI | 11 | 2 | 2 | |
Argythamnia stahlii Urb. | Euphorbiaceae | VU | PRB | 104 | 2 | 1 | |
Abutilon virginianum Krapov.† | Malvaceae | EN | PRB | 67 | 4 | 1 | |
Myrcia neokiaerskovii E.Lucas & K.Samra ‡ | Myrtaceae | CR | BVI, PR | 32 | 2 | 2 | |
Myrcia neothomasiana A.R.Lourenço & E.Lucas § | Myrtaceae | EN | VI | 23 | 2 | 2 | |
Cedrela odorata L. | Meliaceae | VU | NTROP | 1 | 1 | 1 | |
Croton fishlockii Britton | Euphorbiaceae | NT | VI | 295 | 8 | 2 | 1 |
Erythrina eggersii Krukoff & Moldenke | Leguminosae | EN | PRB | 11 | 2 | 1 | |
Galactia eggersii Urb. | Leguminosae | NT | VI | 34 | 5 | 1 | |
Guaiacum officinale L. | Zygophyllaceae | EN | NTROP | 15 | 1 | 1 | |
Ilex urbaniana Loes. ex Urb. | Aquifoliaceae | VU | PRB | 21 | 1 | 1 | |
Leptocereus quadricostatus (Bello) Britton & Rose | Cactaceae | EN | BVI, PR | 33 | 1 | 1 | |
Machaonia woodburyana Acev.-Rodr. | Rubiaceae | EN | VI | 141 | 2 | ||
Malpighia woodburyana Vivaldi | Malpighiaceae | VU | PRB | 262 | 12 | 3 | 4 |
Maytenus cymosa Krug & Urb. | Celastraceae | EN | PRB | 35 | 2 | 1 | |
Metastelma anegadense Britton | Apocynaceae | EN | BVI | 212 | 2 | 1 | |
Miconia thomasiana DC. | Melastomataceae | NT | BVI, PR | 24 | 1 | 1 | |
Mitracarpus polycladus Urb. | Rubiaceae | EN | CARIB | 36 | 1 | ||
Peperomia wheeleri Britton | Piperaceae | EN | CARIB | 7 | 2 | ||
Picrasma excelsa (Sw.) Planch. | Simaroubaceae | VU | NTROP | 1 | 1 | 1 | |
Pilea sanctae-crucis Liebm. | Urticaceae | EN | VI | 16 | 3 | 2 | |
Piptocoma antillana Urb. | Asteraceae | LC | PRB | 14 | 4 | 1 | |
Pitcairnia jareckii Proctor & Cedeño-Mald. | Bromeliaceae | EN | BVI | 17 | 3 | ||
Psychilis macconnelliae Sauleda | Orchidaceae | NT | PRB | 35 | 9 | 1 | 2 |
Reynosia guama Urb. | Rhamnaceae | NT | VI | 32 | 6 | 2 | |
Rondeletia pilosa Sw. | Rubiaceae | NT | PRB | 60 | 9 | 2 | 2 |
Sabal causiarum (O.F.Cook) Becc. | Arecaceae | VU | CARIB | 26 | 3 | 1 | |
Senna polyphylla var. neglecta H.S.Irwin & Barneby | Leguminosae | CR | BVI | 78 | 1 | 1 | |
Tillandsia × lineatispica Mez | Bromeliaceae | N/A | PRB | 9 | 3 | 2 | |
Tolumnia prionochila (Kraenzl.) Braem | Orchidaceae | NT | PRB | 31 | 6 | 1 | 1 |
Vachellia anegadensis (Britton) Seigler & Ebinger| | Leguminosae | EN | BVI | 705 | 1 | 1 | 1 |
Varronia rupicola (Urb.) Britton | Boraginaceae | EN | BVI, PR | 923 | 1 | 1 | |
Zanthoxylum flavum Vahl | Rutaceae | VU | NTROP | 18 | 1 | 1 | |
Zanthoxylum thomasianum Krug & Urb. | Rutaceae | EN | PRB | 139 | 2 | 1 |
Species of Conservation Concern were distributed across 23 islands of the archipelago (Fig.
The BVI TIPAs network contains 18 sites distributed across the archipelago (Fig.
All Species of Conservation Concern are represented across the BVI TIPAs Network with ca. 91% of all records occurring within TIPAs (Fig.
Representativeness of the Species of Conservation Concern within the BVI TIPAs network. Data show percentage of the records for each species that occur within or outside the TIPAs sites.
TIPAs Network and occurrence of Species of Conservation Concern in the British Virgin Islands. Location of TIPA in () if not contained in the TIPA name. Abbreviations: Tropical Important Plant Area site (TIPA).
Species of Conservation Concern | Anegada Island TIPA | Beef Island and the Channel TIPA | Central Virgin Gorda TIPA | Eastern Scrub Island TIPA | Eastern Virgin Gorda TIPA | Ginger Island TIPA | Great Thatch Island TIPA | Great Tobago Island TIPA | Guana Island TIPA | Hawks Nest TIPA (Tortola) | Mount Sage TIPA (Tortola) | Norman Island TIPA | Northeastern Jost van Dyke TIPA | Northern Great Camanoe TIPA | Paraquita Bay and Bar Bay TIPA (Tortola) | Prickly Pear Island TIPA | Sabbath Hill TIPA (Tortola) | Tortola North Shore TIPA | Total records within TIPAs |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Agave missionum | 73 | 9 | 8 | 33 | 15 | 20 | 25 | 3 | 15 | 2 | 1 | 204 | |||||||
Anthurium × selloanum | 1 | 1 | 2 | ||||||||||||||||
Argythamnia stahlii | 102 | 1 | 103 | ||||||||||||||||
Abutilon virginianum | 11 | 10 | 5 | 3 | 29 | ||||||||||||||
Myrcia neokiaerskovii | 18 | 14 | 32 | ||||||||||||||||
Myrcia neothomasiana | 14 | 9 | 23 | ||||||||||||||||
Cedrela odorata | 1 | 1 | |||||||||||||||||
Croton fishlockii | 14 | 116 | 9 | 65 | 1 | 40 | 10 | 4 | 259 | ||||||||||
Erythrina eggersii | 4 | 7 | 11 | ||||||||||||||||
Galactia eggersii | 9 | 5 | 3 | 6 | 7 | 30 | |||||||||||||
Guaiacum officinale | 15 | 15 | |||||||||||||||||
Ilex urbaniana | 21 | 21 | |||||||||||||||||
Leptocereus quadricostatus | 33 | 33 | |||||||||||||||||
Machaonia woodburyana | 99 | 17 | 116 | ||||||||||||||||
Malpighia woodburyana | 52 | 16 | 34 | 1 | 2 | 3 | 12 | 1 | 5 | 33 | 3 | 12 | 174 | ||||||
Maytenus cymosa | 25 | 8 | 33 | ||||||||||||||||
Metastelma anegadense | 209 | 3 | 212 | ||||||||||||||||
Miconia thomasiana | 24 | 24 | |||||||||||||||||
Mitracarpus polycladus | 36 | 36 | |||||||||||||||||
Peperomia wheeleri | 6 | 1 | 7 | ||||||||||||||||
Picrasma excelsa | 1 | 1 | |||||||||||||||||
Pilea sanctae-crucis | 9 | 3 | 1 | 13 | |||||||||||||||
Piptocoma antillana | 2 | 2 | 4 | 2 | 10 | ||||||||||||||
Pitcairnia jareckii | 15 | 1 | 1 | 17 | |||||||||||||||
Psychilis macconnelliae | 12 | 5 | 4 | 1 | 2 | 2 | 2 | 2 | 4 | 34 | |||||||||
Reynosia guama | 10 | 5 | 8 | 5 | 1 | 1 | 30 | ||||||||||||
Rondeletia pilosa | 5 | 17 | 5 | 3 | 3 | 4 | 5 | 1 | 2 | 45 | |||||||||
Sabal causiarum | 9 | 3 | 6 | 18 | |||||||||||||||
Senna polyphylla var. neglecta | 78 | 78 | |||||||||||||||||
Tillandsia × lineatispica | 4 | 3 | 1 | 8 | |||||||||||||||
Tolumnia prionochila | 2 | 10 | 1 | 1 | 9 | 3 | 26 | ||||||||||||
Vachellia anegadensis | 644 | 644 | |||||||||||||||||
Varronia rupicola | 923 | 923 | |||||||||||||||||
Zanthoxylum flavum | 18 | 18 | |||||||||||||||||
Zanthoxylum thomasianum | 100 | 23 | 123 | ||||||||||||||||
Total records | 2206 | 72 | 469 | 47 | 103 | 14 | 42 | 28 | 74 | 104 | 75 | 55 | 3 | 13 | 0 | 30 | 10 | 8 | 3353 |
Number of species | 14 | 8 | 17 | 6 | 8 | 2 | 6 | 4 | 10 | 12 | 9 | 4 | 1 | 3 | 0 | 5 | 5 | 3 | 35 |
Globally threatened species | 12 | 2 | 9 | 2 | 3 | 2 | 3 | 2 | 6 | 6 | 6 | 3 | 1 | 2 | 0 | 2 | 1 | 2 | 25 |
All BVI globally threatened species are present in the BVI TIPAs Network (Table
The Central Virgin Gorda TIPA is the site with the highest species richness with 17 Species of Conservation Concern (Fig.
National Parks and occurrence of Species of Conservation Concern in the British Virgin Islands. National Parks without any records for the species are not listed. Location of National Park in () if not entire island. † Indicates percentage instead of number of records.
Species of Conservation Concern | Existing National Parks (NP) | Proposed National Parks (PNP) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cam Bay (Great Camanoe) | Dead Chest Island | Fallen Jerusalem | Gorda Peak (Virgin Gorda) | Great Tobago | Little Fort (Virgin Gorda) | Prickly Pear | Sage Mountain (Tortola) | Shark Bay (Tortola) | Spring Bay (Virgin Gorda) | Total records within NP | Occurrence within NP (%) | Beef Island | Eastern Ponds (Anegada) | Great Dog (The Dogs) | Great Thatch | Total records within PNP | |
Agave missionum | 2 | 20 | 1 | 1 | 24 | 11 | 8 | 14 | 22 | ||||||||
Anthurium × selloanum | 1 | 1 | 2 | 18 | |||||||||||||
Argythamnia stahlii | 1 | 1 | |||||||||||||||
Abutilon virginianum | 3 | 3 | 4 | ||||||||||||||
Myrcia neokiaerskovii | 17 | 14 | 31 | 97 | |||||||||||||
Myrcia neothomasiana | 11 | 9 | 20 | 87 | |||||||||||||
Cedrela odorata | 1 | 1 | 100 | ||||||||||||||
Croton fishlockii | 13 | 4 | 17 | 6 | 14 | 14 | |||||||||||
Erythrina eggersii | 4 | 4 | |||||||||||||||
Galactia eggersii | 6 | 6 | |||||||||||||||
Guaiacum officinale | 8 | 8 | |||||||||||||||
Ilex urbaniana | 21 | 21 | 100 | ||||||||||||||
Leptocereus quadricostatus | 7 | 7 | |||||||||||||||
Machaonia woodburyana | |||||||||||||||||
Malpighia woodburyana | 2 | 1 | 13 | 16 | 6 | 9 | 10 | 15 | 11 | 45 | |||||||
Maytenus cymosa | 8 | 8 | 23 | ||||||||||||||
Metastelma anegadense | 1 | 1 | |||||||||||||||
Miconia thomasiana | 13 | 13 | 54 | ||||||||||||||
Mitracarpus polycladus | |||||||||||||||||
Peperomia wheeleri | |||||||||||||||||
Picrasma excelsa | 1 | 1 | 100 | ||||||||||||||
Pilea sanctae-crucis | 3 | 1 | 4 | 25 | |||||||||||||
Piptocoma antillana | 4 | 4 | 29 | ||||||||||||||
Pitcairnia jareckii | |||||||||||||||||
Psychilis macconnelliae | 4 | 4 | 11 | 5 | 2 | 7 | |||||||||||
Reynosia guama | 1 | 1 | 2 | 6 | |||||||||||||
Rondeletia pilosa | 2 | 3 | 5 | 8 | 2 | 3 | 5 | ||||||||||
Sabal causiarum | 3 | 3 | 12 | ||||||||||||||
Senna polyphylla var. neglecta | 2 | 2 | |||||||||||||||
Tillandsia × lineatispica | 1 | 1 | 2 | 22 | |||||||||||||
Tolumnia prionochila | 9 | 9 | 29 | 5 | 5 | ||||||||||||
Vachellia anegadensis | 61 | 61 | 9 | 29 | 29 | ||||||||||||
Varronia rupicola | 36 | 36 | |||||||||||||||
Zanthoxylum flavum | 4 | 4 | |||||||||||||||
Zanthoxylum thomasianum | 21 | 21 | 15 | ||||||||||||||
Total records | 2 | 5 | 61 | 74 | 28 | 1 | 31 | 63 | 6 | 1 | 272 | 7† | 30 | 106 | 20 | 40 | 196 |
Number of species | 1 | 2 | 1 | 8 | 4 | 1 | 5 | 8 | 4 | 1 | 22 | 63† | 4 | 10 | 2 | 6 | 16 |
Globally threatened species | 1 | 2 | 1 | 4 | 2 | 0 | 2 | 6 | 2 | 1 | 13 | 52† | 1 | 10 | 1 | 3 | 11 |
Species richness within the BVI TIPAs network. Data show number of Species of Conservation Concern, comprised of globally threatened species and restricted range species which are not globally threatened, in each TIPA site.
Half of the globally threatened species found in the Anegada Island TIPA are not present on any other island in the BVI (Table
The two sites with lowest species richness, Paraquita Bay and Bar Bay TIPA on the Island of Tortola and Northeastern Jost van Dyke TIPA (Fig.
Ginger Island TIPA is also low in species richness but qualified for being one of the five best sites in the archipelago for the globally threatened Abutilon virginianum. This species is also present in Guana Island TIPA, Norman Island TIPA and Sabbath Hill TIPA on the Island of Tortola. Only three records for this species are within a protected area in Dead Chest National Park (Table
A small proportion of all observed records were recorded in National Parks (ca. 7%) and Proposed National Parks (5.3%), occurring in only 10 of the 21 National Parks and four of the eight Proposed National Parks. In terms of species, two thirds of the Species of Conservation Concern (22 species), including nearly half of the globally threatened species (13 species), are represented in the BVI National Park System, having legal protection (Table
Five of the Species of Conservation Concern, i.e. Argythamnia stahlii Urb., Guaiacum officinale, Senna polyphylla var. neglecta, Varronia rupicola and Zanthoxylum flavum Vahl, were absent from National Parks, but occurred in the Eastern Ponds Proposed National Park on the Island of Anegada. Similarly, Erythrina eggersii Krukoff & Moldenke and Galactia eggersii Urb. are only present in the Great Thatch Proposed National Park on the Island of Great Thatch. Gorda Peak National Park on the Island of Virgin Gorda and Sage Mountain National Park on the Island of Tortola have the highest observed number of Species of Conservation Concern (eight for each), including, respectively, four and six globally threatened species. The species absent from the National Parks System were Machaonia woodburyana, Mitracarpus polycladus Urb. and Pitcairnia jareckii. Despite Peperomia wheeleri Britton occurring in Gorda Peak National Park, a lack of high-resolution records resulted in the species not being recorded in our dataset (Table
Overlaps between TIPAs sites and six of the National Parks are observed on the Islands of Tortola, Virgin Gorda, Prickly Pear and Great Camanoe (Fig.
Records from non-georeferenced sources or those georeferenced, but without the required high accuracy (+/- 10 m), were not considered in the analysis, thus improving standardisation and increasing confidence in the results. Herbarium vouchers and/or photographs accompanied most records. Field surveys conducted by those familiar with the species and trained botanists ensured correct plant identifications. As not all islands of the BVI archipelago could be surveyed in the given project timeframe (2016–2019), gap analysis and consultation with partners ensured the dataset had a representative coverage across the archipelago. Measures applied to avoid data duplication included the use of high accuracy data in the analysis, filtering and checking records before retrieval from the main database, gap analysis, planned fieldwork targeting new areas and use of hand-held computers with GPS during fieldwork to visualise previously-recorded observations. Combining all data from herbarium vouchers and field observations into one dataset and incorporating them into the GIS also enabled us to check and visualise data for any possible errors and duplications. The dataset used for the identification of TIPAs and analysed here is for the 35 Species of Conservation Concern occurring across 23 of the BVI islands, so it does not represent the complete botanical richness of each island, TIPA or National Park. Having an initial target list of priority species with all the known regional (Puerto Rican Bank) and national endemic native plant species enabled focused field surveys and a robust dataset for assessing the current threats and extinction risk for these species.
There was large variation in the numbers of records for each species (1–923) and per island (1–2206) because of the various sources of data used in this analysis, sampling effort and site botanical richness. Anegada Island, in particular, had a large amount of data available (2206 records) due to previous, focused research on Vachellia anegadensis (
The number of Species of Conservation Concern and globally threatened species per island did not relate directly to land area, as we observed that some small islands have greater species richness for these categories than larger islands, for example, Guana and Jost van Dyke (Fig.
More than 66% of the Tropical Dry Forests of the Caribbean are estimated to have already been lost and native species richness and population numbers reduced (
Data showed that the Island of Anegada has the highest number of Species of Conservation Concern in the BVI. The Anegada Biodiversity Action Plan (2003–2006) (
The current BVI National Parks System does not hold a good representation of the Species of Conservation Concern, with species completely absent or only a small number of individuals present (Table
Two National Parks, Great Tobago and Prickly Pear, which qualified as TIPAs for their botanical richness and occurrence of Species of Conservation Concern, are under extreme environmental pressure despite legal protection. Both areas have been heavily grazed by feral animals and invasive species are displacing native vegetation (
Global evidence suggests that inaccessible areas, such as steep cliffs and ghuts, exhibit higher species richness and are home to several rare species (
Sage Mountain National Park on Tortola and Gorda Peak National Park on Virgin Gorda are, respectively, within Mount Sage TIPA and Central Virgin Gorda TIPA. These sites have a high number of Species of Conservation Concern. Settlements on both Islands date to Pre-Colombian times and European colonisation in the 17th century led to large-scale deforestation for plantations and urbanisation in the following century. Presently, these Islands are home to most of the BVI human population, Tortola 83% and Virgin Gorda 14% (
Surveys of Caribbean conservation organisations revealed an existing knowing-doing gap for more effective local conservation (
The role of the BVI National Parks as an education resource to engage the local communities (
Ideally, the integration of the TIPAs network into a revised BVI Protected Areas System Plan under National Parks or other management categories would be highly beneficial for the future conservation of the Species of Conservation Concern and threatened habitats in the BVI, helping minimise biodiversity loss and improving species management and monitoring of threats, such as invasive species. However, this approach is neither practical nor feasible as some TIPAs sites are entire islands and or private property. A focused assessment on what areas within the TIPAs network should be declared as protected areas is required to ensure a certain percentage of the Species of Conservation Concern and the threatened habitats identified are protected. In the Republic of Guinea, researchers are working with the local government to integrate some of the TIPAs into the protected areas system, safeguarding and benefitting, not only local flora, but also fauna as the areas are under severe threat (
Despite the benefits of in situ conservation, there are limitations in terms of resources required, land ownership and local interests. Locations of global protected areas show a bias towards higher elevations, steeper slopes, lands of lower productivity and economic worth and low human density and are often not representative of local biodiversity. Expansions driven by Aichi Target 11 can only change this scenario if threatened species distributions are considered and trade-offs of costs and benefits properly managed (
Knowledge of the status and distribution of botanical resources is important for good conservation decision-making and to meet international targets set in Multi-Lateral Environmental Agreements (
All available botanical data for native and invasive species in the BVI generated through this work have been shared with BVI partners to be integrated into the National Geographic Information System (GIS) and is curated through the
The TIPAs model developed for the BVI, the first of its kind in the Caribbean, has been successful in identifying and mapping plant species of national and global conservation concern and areas important for plant conservation in the BVI. The robust and extensive botanical dataset generated was used to deliver native species identification and distribution, provide information for extinction risk assessments and the identification of TIPAs. The integration of this resource into the National GIS of the BVI and access by local practitioners and policy-makers can help guide and focus future conservation efforts and resources, facilitating species management and recovery efforts. This model has wider applications across the Caribbean, particularly to other UK Overseas Territories. Discussions held at the international TIPAs workshop in April 2019 on Tortola, BVI, highlighted the potential and benefits that the identification of TIPAs can have to deliver robust data for conservation management and action across the Caribbean Region (
Data analysed here have highlighted the importance of the BVI National Parks System for plant and ecosystem conservation. However, the BVI TIPAs network has identified areas outside of the existing Protected Area Network that require protection measures to be put in place to conserve globally threatened plant species and habitats. Data on the Species of Conservation Concern and the TIPAs network will be important in addressing gaps and providing information for the current revision of the BVI Protected Areas System Plan and physical planning applications.
We thank HSBC for funding the project ‘Tropical Important Plant Areas of the British Virgin Islands’ through their 150th fund and the
This research was funded by the HSBC 150th Anniversary Fund. The authors declare that they have no conflict of interest. Data were obtained with approval of the Virgin Islands Government via the National Parks Trust of the Virgin Islands.
All authors whose names appear on the submission: 1) made substantial contributions to the conception or design of the work; or the acquisition, analysis or interpretation of data; 2) drafted the work or revised it critically for important intellectual content; 3) approved the version to be published; and 4) agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. The full datasets generated during and/or analysed during the current study are not publicly available due to the need to protect precise locations of threatened species, but are available from the corresponding authors on reasonable request. Vetted data for the BVI TIPAs Network are publicly available via the