Descripción del nido de <em>Hylaeamys yunganus</em> (Rodentia: Cricetidae) de los Andes del sureste de Ecuador

Abstract

The nest of Hylaeamys yunganus Yungas rice rat (Rodentia: Cricetidae) is described for the first time. The nest was found while clearing a trail, 1.5 m above the floor and 5 m from a river, at Sardinayacu, Sangay National Park, in southeastern Ecuador.

Descripción del nido de Phyllotis andium (Cricetidae: Phyllotini), en un matorral seco interandino en Ecuador

“…El sitio de construcción de los nidos y los materiales usados están relacionados con la disponibilidad de hábitat, recursos, factores ecológicos y condiciones ambientales (Udrizar- Sauthier et al 2010, Brito et al 2012. Entre las especies de roedores cricétidos sigmodontinos que ya cuentan con alguna descripción de su nido tenemos a Holochilus brasiliensis, Oligoryzomys sp., Phyllotis haggardi, P. darwini, Scolomys melanops, Hylaeamys yunganus, Thomasomys aureus, T. paramorum y tres especies del género Calomys (Yunes et al 1991, Muñoz-Pedreros 2000, Udrizar Sauthier et al 2010, Brito et al 2012, Rengifo & Aquino 2012, Brito et al 2014, Villareal 2019; mientras que de manera más general se menciona brevemente la estructura de nidos y uso de refugios para otras especies de roedores cricétidos como: Akodon mollis, Microtus californicus y Microryzomys altissimus, entre otras (Muñoz-Prederos 2000, Cudworth & Koprowski 2008, Tirira 2017.…”

New species of arboreal rat of the genus Rhipidomys (Cricetidae, Sigmodontinae) from Sangay National Park, Ecuador

“…Sangay National Park with its expansive and intact forest habitats has revealed multiple new species of vertebrates in recent years [e.g. [50][51][52][53] and novel natural history observations such as those of [41,[54][55][56]. Future studies in Sangay National Park, a UNESCO designated Natural World Heritage site, will likely continue to reveal new species.…”

Movement and use of environmental structures, climbing supports and shelters by Akodon montensis (Sigmodontinae, Rodentia) in the Atlantic Forest of southern Brazil

“…competition among coexisting species may lead to resource partitioning, with the use of space being one of most important niche dimensions in this context (Schoener 1974). Studies on the use of space by small mammals have shown that species tend to travel by specific routes during their foraging activity, selecting different microhabitats (Lozada et al 2000, Bonaventura et al 2003, Dalmagro and Vieira 2005, Lima et al 2010; using different refuges, shelters and nests (Miles et al 1981, Antinuchi and Busch 1992, Cherem et al 1996, Briani et al 2001, Loretto et al 2005, Udrizar Sauthier et al 2010, Brito et al 2012, Rengifo and Aquino 2012, Brito et al 2014, Formoso and Sánchez 2014; and moving through different forest strata (Cunha and Vieira 2002, Grelle 2003, Vieira and Monteiro-Filho 2003. Thus, understanding the movement of species can provide insight into the mechanisms of their coexistence (Gordon 2000).…”