Results 11 to 20 of about 1,262 (86)
Abstract Aim Deforestation of the Atlantic Forest of eastern Paraguay has been recent but extensive, resulting in a fragmented landscape highly influenced by forest edges. We examined edge effects on multiple dimensions of small mammalian diversity. Location Forest fragments of eastern Paraguayan Atlantic Forest. Methods We trapped small mammal species
Noé U. de la Sancha +5 more
wiley +1 more source
Out of 13 samples, 69.2% (n = 9) were detected with Hepatocystis sp., while 15.4% (n = 2) were positive with Hepatozoon ophisauri. Two individuals had multiple infections from both species. This information is essential for the future prevention of zoonotic outbreaks and surveillance programmes.
Putri Wulan Dari Perison +3 more
wiley +1 more source
Manifestations of domination: Assessments of social dominance in rodents
This review describes and discusses approaches to assess social ranks in rodent species. Abstract Social hierarchies are ubiquitous features of virtually all animal groups. The varying social ranks of members within these groups have profound effects on both physical and emotional health, with lower‐ranked individuals typically being the most adversely
Hannah D. Fulenwider +2 more
wiley +1 more source
Chagas disease is an anthropozoonosis caused by the protozoan Trypanosoma cruzi and is characterized as a neglected disease. It is currently endemic in 21 countries on the Latin American continent, including Bolivia, Argentina, and Paraguay. Unfortunately, there are no optimally effective treatments that can reduce the damage caused in the digestive ...
José Rodrigues do Carmo Neto +5 more
wiley +1 more source
Copulatory behavior of Calomys callosus [PDF]
A quantitative description of copulatory behavior in Calomys callosus (laucha de campo) was obtained under laboratory conditions. The copulatory pattern is characterized by intravaginal thrusting and multiple intromissions preceding ejaculation. Copulatory locks were rare.
Denis J. Baumgardner, Donald A. Dewsbury
openaire +1 more source
<span><p align="justify">Calomys callosus are wild rodents present in the Brazilian savannas that were adapted to the laboratorial conditions. These animals are resistant to infections that induce chronic inflammatory responses (<em>Trypanosoma cruzi</em> and <em>Paracoccidioides brasiliensis</em>).
André Kipnis +3 more
openaire +2 more sources
The adjustment of Calomys callosus (Rodentia, Cricetidae) to food deprivation [PDF]
The adjustment of Calomys callosus (Rodentia, Cricetidae) to intermittent food deprivation was investigated. Animals subjected either to 24-hr or to 48-hr repeated periods of deprivation successfully compensated, showing (1) increases in post-fast intake relatively to the intake by control animals; (2) rapid recovery of the baseline levels of body ...
Ades, César, Kolde, Renate Edla
openaire +3 more sources
Animal Models for the Study of Rodent‐Borne Hemorrhagic Fever Viruses: Arenaviruses and Hantaviruses
Human pathogenic hantaviruses and arenaviruses are maintained in nature by persistent infection of rodent carrier populations. Several members of these virus groups can cause significant disease in humans that is generically termed viral hemorrhagic fever (HF) and is characterized as a febrile illness with an increased propensity to cause acute ...
Joseph W. Golden +4 more
wiley +1 more source
Paracoccidioidomicose: estudo experimental em Calomys callosus [PDF]
Paracoccidioidomycosis is one of the most prevalent systemic mycosis in Latin America, including Brazil. It is caused by chronic infection with Paracoccidioides brasiliensis, a thermally dimorphic fungus.
Berbert, Alceu Luiz Camargo Villela
core +1 more source
Trypanosoma cruzi infection was studied in mouse lines selected for maximal (AIRmax) or minimal (AIRmin) acute inflammatory reaction and for high (HIII) or low (LIII) antibody (Ab) responses to complex antigens. Resistance was associated with gender (females) and strain—the high responder lines AIRmax and HIII were resistant.
Francisca Vorraro +7 more
wiley +1 more source

