Papers by Juan Felipe Lazarus
Bermúdez-Tobón, A., J. Cantera, J. Lazarus & A.M. Cobo. 2008. Crustáceos decápodos (Arthropoda: C... more Bermúdez-Tobón, A., J. Cantera, J. Lazarus & A.M. Cobo. 2008. Crustáceos decápodos (Arthropoda: Crustacea). Pp. 219-223. En: INVEMAR. 2008. Informe del Estado de los Ambientes Marinos y Costeros en Colombia: Año 2007. Serie de Publicaciones Periódicas No. 8. Santa Marta, 380 pag.
The present study deals two new alpheid shrimp species from the transisthmian Salmoneus ortmanni ... more The present study deals two new alpheid shrimp species from the transisthmian Salmoneus ortmanni (Rankin, 1898) complex. Salmoneus alvarezi sp. nov. is described based on materials collected in Bahía Málaga, Colombia, and Punta Morales, Costa Rica, and is closely related to the western Atlantic S. ortmanni and S. wehrtmanni Anker, 2011. Salmoneus malagensis sp. nov. is described based on specimens from Bahía Málaga, Colombia, and beyond any doubts represents the eastern Pacific sister species of the western Atlantic S. carvachoi Anker, 2007. The two new species can be easily distinguished from each other by a number of morphological characters and colouration, and in addition appear to be ecologically separated. All previous records of S. ortmanni from the eastern Pacific are reassigned, some tentatively, to S. alvarezi sp. nov. based on description, illustrations or ecological data.
Two new species of infaunal decapod crustaceans are described based on material collected in Bahí... more Two new species of infaunal decapod crustaceans are described based on material collected in Bahía Málaga, Pacific coast of Colombia, in 2009. The mud-shrimp Axianassa darrylfelderi sp. nov. (Axianassidae) appears to be most closely related to A. australis Rodrigues & Shimizu, 1992, A. canalis Kensley & Heard, 1990, and A. jamaicensis Kensley & Heard, 1990. The new species may be distinguished from each of them by a combination of morphological features, mainly on the uropodal exopod, antennal acicle, third maxilliped and first pleonite. The shrimp Leptalpheus canterakintzi sp. nov. (Alpheidae), associated with burrows of A. darrylfelderi sp. nov., undoubtedly represents the eastern Pacific sister species of the western Atlantic L. axianassae Dworschak & Coelho, 1999, which lives exclusively in burrows of A. australis. The two species are reliably distinguishable only by the proportions of the merus and propodus of the third pereiopod. Leptalpheus azuero Anker, 2011, previously known only from the Pacific coast of Panama, is reported for the first time from Bahía Málaga, Colombia.
New eastern Pacific records and extensions of the distribution range of 14 Porcellanid crab speci... more New eastern Pacific records and extensions of the distribution range of 14 Porcellanid crab species representing seven genera are reported. These species were found during recent fieldwork and in museum collections, and constitute new records for Mexico, Colombia, Ecuador, including Galapagos Islands, and Peru. Janet Haig's monograph (1960) on porcellanid crabs from the eastern Pacific, and all relevant work published thereafter were reviewed and complemented with collection data from this report. Some gaps in the knowledge of the geographic distribution and ecology of the species reported were filled.
Palabras Clave: Crustacea, camarones, cangrejos, Pacífico colombiano, Bahía Málaga.
Books by Juan Felipe Lazarus
Rocky shores are areas of high diversity and productivity providing goods and services. Since hum... more Rocky shores are areas of high diversity and productivity providing goods and services. Since humans are altering nature at an unprecedented rate, producing shifts in important parameters for life such as temperature, habitat availability, water quality, among others, it is expected that species will respond by changing their natural distributions and/or abundances. To understand how species will respond to such changes, it is necessary to learn the processes that determine these patterns. The South American Research Group on Coastal Ecosystems was established to assess marine diversity and biomass along both coasts of South America through an international collaboration. The main goals of SARCE are to: (1) Test hypotheses about latitudinal gradients and patterns of local and regional biodiversity, (2) Identify the relationship between biodiversity and ecosystem functioning, (3) Assess the effect of environmental gradients and anthropogenic stressors, (4) Carry out capacity building and training activities aimed to solve environmental problems for the benefit of society. The SARCE network has sampled the coasts of nine countries around South America with a standardized protocol in more than 150 sites (2010- 2014), ranging from 11º North to 55º South. This chapter provides a description of the biodiversity of the sites sampled by SARCE, along with a review of the uses and services that these ecosystems provide to human populations and the main threats and impacts these uses have caused.
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Papers by Juan Felipe Lazarus
Books by Juan Felipe Lazarus