Francisco Borrero

• PhD
• National Malacology Specialist/Taxonomist at United States Department of Agriculture

The history of the giant African snail (Lissachatina fulica) in Miami, Florida is presented. The most recent infestation (2009-2021) is described in detail, with outlines of the strategies and programs conducted by the USDA and the Florida Department of Agriculture & Consumer Services to delimit, control and ultimately eradicate the infestation. It...

The land snails of the genera Drymaeus Albers, 1850 and Stenostylus Pilsbry, 1898, both belonging to the family Bulimulidae, and occurring within northwestern South America are revised and notes on their distribution are given. 78 species of Drymaeus and two of Stenostylus are herein confirmed from Colombia, and are illustrated for comparison. Six...

The genus Bulimulus Leach 1814 comprises arguably over 100 species and subspecies of mainly Neotropical distribution, occurring in Central and South America, as well as in most Caribbean Islands. The majority of the species are ground dwellers, being common on rock surfaces, as well as among vegetation and leaf litter on the ground. Many species ar...

The Paul Hesse Collection, purchased by ANSP in 1926, focused on non-marine mollusks of Europe and countries bordering the Mediterranean and Black Seas. It contains about 7,500 lots totaling about 50,000 specimens and is thus an important resource for studying Palearctic mollusks. Type lots of more than 40 European authors are included therein. Hes...

Freshwater mussels are a highly imperiled group of organisms. Understanding their demography and population dynamics is central to their conservation. We used mark-recapture techniques over a 5-year period to estimate the survival and population growth of two populations of Lampsilis radiata luteola in Ohio Brush Creek, Ohio, USA. Of particular int...

The species of Labyrinthus Beck and Isomeria Albers known from the Sierra Nevada de Santa Marta (SNSM) are reviewed and illustrated. Isomeria goettingi n. sp. is described as the seventh species of the family Pleurodontidae known from this region. The new taxon resembles species from the SNSM and from the Andean region of Colombia and Ecuador. The...

A clarification of the status of Isomeria morula (Hidalgo 1870) is given, based on the recently rediscovered, likely type specimen at Museo Nacional de Ciencias Naturales (MNCN, Madrid, Spain), and additional material from University of Michigan Museum of Zoology (UMMZ, Ann Arbor USA). The available material (three specimens) comes from older colle...

The land snails of the family Amphibulimidae occurring within northwestern South America are critically examined and notes on their distribution are given. The total number of taxa discussed is 61 (7 Dryptus, 54 Plekocheilus); of these, four Colombian Dryptus and 32 Plekocheilus species are included. The following new species are described: Plekoch...

Tentacle No. 17—January 2009 6 important – such as squid, common hake, croaker and shrimp – the ecosystem's global significance resides in the fact that it provides a feeding ground for migratory birds, fish, turtles and sea mammals. As for invertebrates, there are 900 species of molluscs alone, some of which are only found in the Patagonian Sea. T...

The family Orthalicidae is wide-spread in the Neotropics and a major member of the land snail fauna of most South American countries. This checklist presents the species known to exist in Ecuador. It is based on data from relevant literature and museums world wide. There are 168 species in total, 63 of which occur on the Galápagos; 9 species are li...

The status of the mussel community of Ohio Brush Creek and its tributaries in southeastern Ohio was evaluated over a 17-year period. Species richness increased from 16 and 20 species found in 1996 and 1987, respectively, to 23 found in 2004. Despite the increase in species richness, the abundance of live and freshly dead shells declined, particular...

Juvenile Oyster Disease (JOD) causes mortalities of small cultured oysters, Crassostrea virginica. The present study was an intensive epizootiological and pathological investigation of JOD in eight sequentially deployed cohorts at sites on Long Island, New York. JOD symptoms and mortalities began in all groups at about the same time. Lesions on the...

ABsTR@cr High tidal populations ofthe mussel Geukensia demissa experience reduced filter feeding time as a result ofaerial exposure. This study tested the hypothesis that such populations exhibit a temporal delay in their gametogenic cycle compared to popula tions from the low intertidal. As predicted, quantitative estimations of gametogenic condit...

Field observations were carried out to document the presence of early juveniles of Anadara spp. in a mangrove forest area of the Buenaventura Bay, Colombia, and to describe the seasonality of spat settlement. The effectiveness of several collection methods to obtain spat and juveniles on intertidal and subtidal mudflats was tested. Coconut husk col...

Typescript. Thesis (M.S.)--University of South Carolina, 19876. Includes bibliographical references (leaves 120-125).

Typescript. Thesis (Ph. D.)--University of South Carolina, 1991. Includes bibliographical references (leaves 216-234).