Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal‐central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation‐related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data.
]; where W is the expected weight for a specifi c length L, a 1 and a 2 are the proportionality coeffi cients for stanzas 1 and 2, b 1 and b 2 are the allometric coeffi cients for stanzas 1 and 2, R sc is the stanza changing rate for the switch function and SCP is the stanza changing point for the switch function. The stanza changing point was estimated as 5.28 cm, corresponding with the length at fi rst maturity for this species L mat (5.29 cm). Our data suggest that a complex growth pattern can be in nature, and perhaps not often identifi ed because trends are obscured by natural variability.KEYWORDS. Allometric growth, length at fi rst maturity, reproduction, sexual maturity, length-weight relationship.RESUMO. Crescimento polifásico em peixes: estudo de caso com Corydoras paleatus (Siluriformes, Callichthyidae). Foi estabelecida uma relação peso-comprimento para Corydoras paleatus (Jenyns, 1842) (Siluriformes, Callichthyidae) (n = 596) a partir de amostras obtidas em novembro-dezembro de 2009 e março-abril de 2010, na lagoa da Pinguela (29°46'57"S; 50°11'16"W), Rio Grande do Sul, Brasil. A espécie apresentou um padrão de crescimento alométrico polifásico, cada estágio descrito por uma equação de potência independente e controladas por uma função de interruptora:; onde W é o peso esperado para um comprimento L, a 1 e a 2 são os coefi cientes de proporcionalidade para as fases 1 e 2, b 1 e b 2 são os coefi cientes alométricos para as fases 1 e 2, R sc é a taxa de mudança de fase e SCP é o ponto de mudança de fase. O ponto de mudança fase foi estimado em 5,28 cm, correspondendo com o comprimento de primeira maturação desta espécie (L mat ) (5,29 cm). Nossos dados sugerem que um padrão de crescimento complexo pode ser frequente na natureza, e que talvez muitas vezes não seja identifi cado porque as tendências são obscurecidas pela variabilidade natural. PALAVRAS-CHAVE.Crescimento alométrico, tamanho de primeira maturação, reprodução, maturação sexual, relação peso-comprimento.The weight-length relationship (WLR) is considered frequently as "second class" science (Froese, 2006), and just regular task for any fi shery biologist. Research about WLR are frequently published only as short-communication for species that this information is not yet known (Froese, 2006). As a result, specifi c work on weight and length do not stand out, restricting knowledge of the WLR to a very small number of species (Kulbicki et al., 2005).Of course, it's easy to understand the need of WLR for commercial fi shery, when we need to convert both measurements as an ordinary task. However, the parameters of the WLR, as the proportionality coeffi cient (a) and the allometric coeffi cient (b) could inform several aspects of the fi sh biology, as the general growth pattern or seasonal changes in the fi sh condition (Froese, 2006). The amount of information that could be inferred using this general approach makes it very useful the understand ecological patterns, even for small and not commercial fi sh species. Froese et al. (2014) made a rece...
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