scholarly journals Establishment of brown anoles (Anolis sagrei) across a southern California county and potential interactions with a native lizard species

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8937 ◽  
Author(s):  
Samuel R. Fisher ◽  
Lelani A. Del Pinto ◽  
Robert N. Fisher

The brown anole, Anolis sagrei, is a native species to the Caribbean; however, A. sagrei has invaded multiple parts of the USA, including Florida, Louisiana, Hawai’i and more recently California. The biological impacts of A. sagrei invading California are currently unknown. Evidence from the invasion in Taiwan shows that they spread quickly and when immediate action is not taken eradication stops being a viable option. In Orange County, California, five urban sites, each less than 100 ha, were surveyed for an average of 49.2 min. Approximately 200 A. sagrei were seen and verified across all survey sites. The paucity of native lizards encountered during the surveys within these sites suggests little to no overlap between the dominant diurnal western fence lizard, Sceloporus occidentalis, and A. sagrei. This notable lack of overlap could indicate a potentially disturbing reality that A. sagrei are driving local extirpations of S. occidentalis.

Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2083 ◽  
Author(s):  
Luis Amador ◽  
Fernando Ayala-Varela ◽  
Andrea E. Nárvaez ◽  
Keyko Cruz ◽  
Omar Torres-Carvajal

We report the first record of the invasive Brown Anole, Anolis sagrei Duméril & Bibron, 1837, in South America based on nine specimens from Samborondón, Guayas province, Ecuador. We also present some information related to the current distribution in Ecuador, and its possible impacts on native lizard species.


2021 ◽  
Author(s):  
Anthony J Geneva ◽  
Sungdae Park ◽  
Dan Bock ◽  
Pietro de Mello ◽  
Fatih Sarigol ◽  
...  

Rapid technological improvements are democratizing access to high quality, chromosome-scale genome assemblies. No longer the domain of only the most highly studied model organisms, now non-traditional and emerging model species can be genome-enabled using a combination of sequencing technologies and assembly software. Consequently, old ideas built on sparse sampling across the tree of life have recently been amended in the face of genomic data drawn from a growing number of high-quality reference genomes. Arguably the most valuable are those long-studied species for which much is already known about their biology; what many term emerging model species. Here, we report a new, highly complete chromosome-scale genome assembly for the brown anole, Anolis sagrei — a lizard species widely studied across a variety of disciplines and for which a high-quality reference genome was long overdue.


2020 ◽  
Author(s):  
Sylvan Kaufman

Abstract Y. aloifolia is an evergreen shrub in the Asparagaceae family that grows mainly in the coastal plain of the southern United States and Mexico along dunes, roadsides and in open coastal forests. Some sources also list it as native to islands in the Caribbean (Trelease, 1902; Jones and Goode, 1884; USDA-ARS, 2016). It is widely planted as an ornamental and living fence in temperate and tropical regions around the world and has the ability to spread by seed and vegetatively. It is listed as a transformative species in Plantas Invasoras en Cuba (Oviedo Prieto et al., 2012). It is considered an environmental weed in New South Wales, Australia (Weeds of Australia, 2016) and invasive on coastal dunes in Valencia, Spain (Ferrer Marino and Donat, 2011). It has naturalized in scrublands of South Africa (Smith et al., 2012). In the USA it is naturalized in California (LSA Associates, 2010). There is no information on what environmental effects the species has on habitats, ecosystems or populations but since it can form dense stands (Sydney Weeds Committee, 2016), it is likely to compete with native species. The leaves are tipped with very sharp points and can cause an allergic reaction (Kanerva et al., 2001). There is no evidence that it is considered a weed in agricultural systems.


2017 ◽  
Vol 9 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Sheree-Ann Adams

Purpose The purpose of this paper is to explore the opportunities and approaches needed to ensure the long-term sustainability of cruise companies as a source of employment for Caribbean nationals. Design/methodology/approach The format is one of a concept paper and not a review of primary data collected, but based on the authors observations, industry knowledge and review of secondary literature available in the public domain. Findings Some recommendations are made as to the facilitation of this concept in sustainable cruise employment for the Caribbean region that will provide not only economic sustainability but also social benefits to the Caribbean region at large through poverty reduction through employment and global travel exposure. Practical implications The paper puts forth a proposal for a centralized organization representative of the multiple stakeholders within the Caribbean Cruise community: to manage and facilitate a fund to assist Caribbean nationals desirous of working on cruise ships and to meet the necessary standards of training not only in hospitality qualifications but also in basic training standards of safety, security and watch keeping for seafarers. Social implications The employment opportunities for Caribbean persons on cruise ships have not been fully exploited with the majority of Caribbean nationals working on cruise ships found predominately within the Royal Caribbean Cruise Lines, Celebrity Cruises, Norwegian Cruise Lines and Carnival Corporation brands based in the USA. Originality/value This paper provides readers with insight into the existing Caribbean employment and shipboard employment scenarios, with the view of presenting an option for stimulating and supporting sustainable employment on cruise ships for Caribbean nationals.


Author(s):  
Jacqueline H. Stephenson ◽  
Natalie Persadie ◽  
Ann Marie Bissessar ◽  
Talia Esnard
Keyword(s):  
The Usa ◽  

2021 ◽  
Author(s):  
Gregg Henderson

Abstract C. formosanus is often transported by boats and shipping containers to port cities before being carried further inland via landscape materials such as railroad ties (railway sleepers). This may explain the current C. formosanus distribution in the USA with coastal areas more densely infested than inland areas (Hochmair and Scheffrahn, 2010). Temperature and humidity are primary factors affecting the establishment of C. formosanus, and it is potentially invasive to areas of high humidity approximately 35° north and south of the equator (Su and Tamashiro, 1987). Competition from native species is another limiting factor for many exotic pests, but C. formosanus is more aggressive and is known to out-compete the endemic termites such as Reticulitermes species. Another factor that has allowed the successful establishment and spread of C. formosanus in exotic areas has been the pest control industry's heavy reliance on soil termiticide barriers for subterranean termite control since the 1950s. Numerous studies, using mark-recapture methods, have revealed that a single colony of C. formosanus might contain several million termites that forage up to 100 m in the soil (Lai, 1977; Su and Scheffrahn, 1988). These agree with the results of excavation studies for C. formosanus colonies (Ehrhorn, 1934; King and Spink, 1969). Because of the large colony size, the application of soil termiticides beneath a structure does not usually have a major impact on the overall population, and the surviving colony continues to produce alates that can further infest nearby areas. Once established, C. formosanus has never been completely eradicated from an area. The dependency of soil termiticide barriers as the primary tool for subterranean termite control is probably the main reason for the establishment and spread of C. formosanus from four isolated port cities in the 1960s in the USA to all south-eastern states by 2001.


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