Hyptis spicigera (black sesame).

Mapping Intimacies ◽

10.1079/isc.119822.20203483468 ◽

2020 ◽

Author(s):

Shruti Dube

Keyword(s):

Invasive Species ◽

Caribbean Region ◽

Tropical Africa ◽

Invasive Weed ◽

Pasture Grass ◽

Agricultural Weed ◽

Annual Herb ◽

The Caribbean ◽

Evidence Of Impact ◽

Savannah Zone

Abstract Hyptis spicigera is an annual herb possibly native to tropical and subtropical America but now widely naturalized in tropical Africa and Asia, and Australia. This species has become a widespread weed in the Guinea Savannah zone. Its seeds contaminate the pasture grass seed. H. spicigera is listed as an agricultural weed in South Asia, Southeast Asia and Africa (e.g. Burkina Faso, Cameroon, Ghana, Guinea, Nigeria). It is considered an invasive weed in rice-growing areas in Madagascar with no further details. H. spicigera has also spread widely as a tropical weed in the Caribbean region, and is listed as an invasive species on the Global Register for Introduced and Invasive Species for Cuba with evidence of impact. H. spicigera is also listed in the 2017 edition of the Global Compendium of Weeds. This species received a high invasive risk score in an assessment of the invasive threat of introduced species in Australia.

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Impatiens balsamina (garden balsam).

10.1079/isc.28765.20203483262 ◽

2020 ◽

Author(s):

Julissa Rojas-Sandoval

Keyword(s):

The Philippines ◽

Forest Understory ◽

Secondary Forests ◽

Native Plant ◽

Tropical Africa ◽

Natural Habitats ◽

Native Plant Species ◽

Impatiens Balsamina ◽

Annual Herb ◽

The Caribbean

Abstract Impatiens balsamina is an annual herb thought to be native to India and Myanmar. It has been widely introduced outside of its native range as an ornamental to Europe, Asia, the Americas, Oceania and some parts of tropical Africa. It has escaped from cultivation and become naturalized in disturbed sites and semi-natural habitats including secondary forests and forest edges. It spreads by seed and also vegetatively by stem fragments and can form dense stands in forest understory inhibiting germination and the establishment of seedlings, displacing native plant species. It is thought to be invasive to many tropical and subtropical islands in Oceania and the Caribbean as well as Costa Rica, Peru, the Galapagos Islands, the Philippines and parts of India.

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Splitting Caldesia in favour of Albidella (Alismataceae)

Australian Systematic Botany ◽

10.1071/sb16050 ◽

2017 ◽

Vol 30 (1) ◽

pp. 64 ◽

Cited By ~ 2

Author(s):

Samuli Lehtonen

Keyword(s):

Phylogenetic Analyses ◽

Morphological Characteristics ◽

Species Group ◽

Disjunct Distribution ◽

Caribbean Region ◽

New Combinations ◽

Tropical Africa ◽

Sister Relationship ◽

The Indian Ocean ◽

The Caribbean

Phylogenetic analyses based on 10 molecular markers unquestionably support a sister relationship between Albidella nymphaeifolia and the Caldesia oligococca species group. The type species of the genus Caldesia is excluded from this monophylum. These results are unsurprising in the light of morphological characteristics, but require three new combinations in Albidella to render both Albidella and Caldesia monophyletic. These new combinations are provided here. Under the new circumscription, Albidella shows a disjunct distribution pattern, with one species in the Caribbean region and three species distributed from tropical Africa and along the margins of the Indian Ocean to Australia.

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Erechtites hieraciifolius (American burnweed).

10.1079/isc.114182.20203483489 ◽

2020 ◽

Author(s):

Julissa Rojas-Sandoval

Keyword(s):

New Zealand ◽

South America ◽

French Polynesia ◽

North Central ◽

Anthropogenic Habitats ◽

Minor Outlying ◽

Wide Range ◽

Agricultural Weed ◽

Annual Herb ◽

The Caribbean

Abstract Erechtites hieraciifolius is a fast-growing, annual herb that is native to North, Central and South America and the Caribbean. It is recorded as an environmental and agricultural weed in areas both within and outside its native distribution. Mature plants can produce large amounts of wind-dispersed seed, facilitating the colonisation of new areas. It is adapted to grow in a wide range of disturbed anthropogenic habitats and can outcompete other species to form dense populations. It may also spread as a seed contaminant of crops. Currently, it is listed as invasive in Hong Kong, Hawaii, the Galapagos Islands, French Polynesia, Palau, US Minor Outlying Islands, New Zealand and Hungary. It is also considered a potential weed in Australia, where it is under quarantine.

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Ornamentals lead the way: global influences on plant invasions in the Caribbean

NeoBiota ◽

10.3897/neobiota.64.62939 ◽

2021 ◽

Vol 64 ◽

pp. 177-197

Author(s):

Julissa Rojas-Sandoval ◽

James D. Ackerman

Keyword(s):

Invasive Species ◽

Management Strategies ◽

Plant Invasions ◽

Invasion Success ◽

Caribbean Region ◽

Cumulative Number ◽

Alien Plant ◽

Historical Factors ◽

The Caribbean ◽

Control And Management

Understanding the historical factors associated with the invasion success of alien species in a region may help us to identify sources, vectors, and pathways that are more likely to originate new invaders. Here, we gather data for traits related to the history of introduction (e.g., continent of origin, reason for introduction, and date of introduction) of 616 alien plant species listed as invasive on 18 island groups across the Caribbean region. We used these data to evaluate how human activity has influenced plant invasions on Caribbean islands over time and whether invasion success could be driven by traits of the introduction process. We found that significantly more invasive plants (54%) were intentionally introduced for ornamental reasons than for any other purpose. Most invaders in the Caribbean are native to Asia, South America, and Africa and the cumulative number of invasive species in this region has been steadily increasing during the last 200 years, but since 1850, this trend has been led by species introduced as ornamentals. We also found a significant association between continent of origin and reason of introduction, with more invaders than expected being ornamentals from Asia and America, and forage species from Africa. Our results show that introduced ornamentals are successfully invading all major habitats across the Caribbean, exacerbating conservation issues and threatening native biodiversity. Armed with knowledge of origins and reasons for introductions, effective biosecurity actions as well as control and management strategies can be better targeted to address the problem of invasive species in the region.

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African Caribbean Residents of Edinburgh in the Eighteenth and Nineteenth Centuries

Kalfou A Journal of Comparative and Relational Ethnic Studies ◽

10.15367/kf.v7i1.300 ◽

2020 ◽

Vol 7 (1) ◽

Author(s):

Lisa Williams

Keyword(s):

Nineteenth Century ◽

British Empire ◽

Caribbean Region ◽

African Caribbean ◽

The Caribbean ◽

Eighteenth And Nineteenth Centuries

Scotland is gradually coming to terms with its involvement in slavery and colonialism as part of the British Empire. This article places the spotlight on the lives of African Caribbean people who were residents of Edinburgh during the eighteenth and nineteenth centuries. I discuss their varied experiences and contributions: from runaways and men fighting for their freedom in the Scottish courts to women working as servants in city households or marrying into Edinburgh high society. The nineteenth century saw activism among political radicals from abolitionists to anticolonialists; some of these figures studied and taught at Edinburgh University. Their stories reflect the Scottish capital’s many direct connections with the Caribbean region.

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