2013
DOI: 10.3856/vol41-issue4-fulltext-6
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Dieta del cangrejo dulceacuicola Bottiella niceforei (Schmitt & Pretzmann, 1968) (Decapoda: Trichodactylidae) y su relacion con el procesamiento de materia organica en una corriente intermitente del noroeste de Venezuela

Abstract: RESUMEN. Para aproximarse al rol que tiene el cangrejo de río Bottiella niceforei en el procesamiento de materia orgánica, en una corriente intermitente al noroeste de Venezuela, se estudió su dieta natural, mediante el análisis del contenido del tracto digestivo entre junio 2009 y febrero 2010. Se determinó la abundancia de los cangrejos sobre la base de la proporción de individuos capturados por trampas, a lo largo del muestreo, y en cada pozo. Las mayores densidades ocurrieron en septiembre (2,7 ind trampa … Show more

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Cited by 5 publications
(10 citation statements)
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References 36 publications
(46 reference statements)
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“…These results conform with the previous finding of Williner and Collins (2013) who reported that a crab of the same genus, T. borellianus, had a high relative importance of oligochaetes and insect larvae in the diet. However, in contrast to the generalizations made by Burress et al (2013) that 'trichodactylids do not appear to engage in carnivory, ' it is evident in this study and in the previous literature that trichodactylid species often use animal resources, hunting them and eating dead animals (Williner and Collins 2002;Collins et al 2006;Carvalho et al 2013a, Pirela andRincón 2013;Williner and Collins 2013).…”
Section: Discussioncontrasting
confidence: 92%
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“…These results conform with the previous finding of Williner and Collins (2013) who reported that a crab of the same genus, T. borellianus, had a high relative importance of oligochaetes and insect larvae in the diet. However, in contrast to the generalizations made by Burress et al (2013) that 'trichodactylids do not appear to engage in carnivory, ' it is evident in this study and in the previous literature that trichodactylid species often use animal resources, hunting them and eating dead animals (Williner and Collins 2002;Collins et al 2006;Carvalho et al 2013a, Pirela andRincón 2013;Williner and Collins 2013).…”
Section: Discussioncontrasting
confidence: 92%
“…Trichodactylid crabs are reported to have opportunistic and omnivorous feeding habits, with a high consumption of vegetal matter, but animal items represent an important fraction of the trophic spectrum (Williner and Collins 2002;Collins et al 2006;Pirela and Rincón 2013;Williner and Collins 2013). The presence of omnivorous organisms can contribute to understand the dynamics of aquatic systems and provide elements to analyze the stability of these species (Long et al 2011;Kratina et al 2012).…”
Section: Discussionmentioning
confidence: 99%
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“…Similarly, studies of trichodactylid crab gut contents have reported the consumption of plant detritus and insect larvae (e.g. Pirela & Rincón, 2013;Williner et al, 2014).…”
Section: Mechanisms Of Leaf Breakdown By Crabsmentioning
confidence: 99%
“…However, there have been some recent feeding ecology studies on trichodactylid crabs in South America (e.g. Pirela & Rincón, 2013;Williner, Carvalho, & Collins, 2014) that have found that crab gut contents predominantly include allochthonous plant material, as well as a wide trophic range of prey items. Costa et al (2016) documented higher survivorship of the caddisfly Triplectides sp.…”
Section: Introductionmentioning
confidence: 99%