To identify the relationship between landscape use and dengue virus (DENV) occurrence in bats, we investigated the presence of DENV from anthropogenically changed and unaltered landscapes in two Biosphere Reserves: Calakmul (Campeche) and Montes Azules (Chiapas) in southern Mexico. Spleen samples of 146 bats, belonging to 16 species, were tested for four DENV serotypes with standard reverse tra...

Bats are the only mammals that use highly developed laryngeal echolocation, a sensory mechanism based on the ability to emit laryngeal sounds and interpret the returning echoes to identify objects. Although this capability allows bats to orientate and hunt in complete darkness, endowing them with great survival advantages, the genetic bases underlying the evolution of bat echolocation are still...

background: rodents have important role as reservoirs of different parasites. the aim of this study was to determine helminth parasites of abundant rodents in meshkin-shahr, ardabil province northwest iran. methods: from april 2014 to march 2015; 205 rodents including 118 meriones persicus , 63 mus musculus and 24 cricetulus migratorius were collected, using live traps. all rodents were dissect...

The interannual variability of the spatial extent of the spring bloom in the central Sargasso Sea was quantified by remote-sensing approaches. Proxy measurements employing satellite-derived sea-surface temperature and chlorophyll a concentrations were used to estimate the amount of new production derived from inorganic nitrate supplied by convective winter mixing. Nitrate supply and new product...

Bats are unique mammals. This note discusses some questions regarding bat evolution including why they are nocturnal and why they can echolocate. It is hypothesized that echolocation was necessary for bats to survive the period of limited visibility that followed the Cretaceous–Paleogene (K–Pg) extinction event. Introduction. Bats are amazing and unique animals: they are mammals which can fly a...

Aims: Leptospirosis is endemic to tropical regions of the world and is re-emerging as a new danger to public health in Southeast Asia, including Malaysia. The purpose of this particular study was to determine the common leptospiral serovars present in small wild mammals living around wildlife reserves and disturbed forest habitats and human communities. Methodology and results: The samples of b...

Synopsis Torpor and reproduction in mammals and birds are widely viewed as mutually exclusive processes because of opposing energetic and hormonal demands. However, the reported number of heterothermic species that express torpor during reproduction is ever increasing, to some extent because of recent work on free-ranging animals. We summarize current knowledge about those heterothermic mammals...

M7e conipared bat activity levels in the Coaslal Plain of South Carolina atnong 5 habitat types: forested riparian areas, clearcuts, young pine plat~tations, mature pine plantations, and pine savannas. We used time-expansion I-adio-microphones and integrated detectors to simultaneously monitor bat activity at 3 heights (30, 10, 2 mj in each habitat type. Variation in vegetative clutter among sa...

introduction: leishmanioses are important parasitic diseases presenting in three clinical forms visceral, cutaneous and muco-cutaneous. some rodents are the reservoir hosts of zoonotic cutaneous leishmaniasis. the disease prevails in many rural areas of yazd province. this was the first comprehensive study on the fauna of rodents in yazd and was conducted to determine the fauna, distribution an...