Search results for "Tyto"

Does Tourism Consumption Behaviour Mirror Differences in Living Standards?

2016

Based on the theoretical foundation of well-being measurement, the study explores differences in living standards by analysing the distribution of tourism expenditure. A mixture of regression models is used to explore the heterogeneity in tourism consumption by identifying groups of families with similar tourism consumption behaviour as a function of certain socio-demographic and economic factors. The empirical analysis, performed on Italian expenditure data, suggests that there are three different patterns of consumption behaviour conditional to the socio-demographic and economic covariates in the tourism market and that differences in tourism consumption between groups of households mirro…

Melanism is related to behavioural lateralization in nestling barn owls.

2017

5 pages; International audience; Behavioural laterality is a commonly observed phenomenon in many species suggesting there might be an advantage of using dominantly one side over the other for certain tasks. Indeed, lateralized individuals were often shown to be more successful in cognitive tasks compared to non-lateralized conspecifics. However, stressed individuals are also often, but not always, more strongly lateralized. Because barn owl (Tyto alba) females displaying larger black spots on the tip of their ventral feathers produce offspring that are more resistant to a variety of environmental stressful factors, we examined whether laterality is associated with melanin-based coloration.…

The owl that never left! Taphonomy of Earlier Stone Age small mammal assemblages from Wonderwerk Cave (South Africa)

2022

Wonderwerk Cave, in South Africa, is an exceptional site that has yielded a large collection of small mammal fossils in a stratigraphic sequence reaching back ca. 2 million years. Taphonomic studies undertaken to date, show that Tytonidae (likely Tyto alba) was the dominant predator during the Earlier Stone Age. They produced masses of pellets that formed a dense carpet-like surface that covered the cave floor at intervals throughout the sequence. This paper compares the taphonomic signatures of five different Earlier Stone Age small mammal assemblages from Wonderwerk Cave, including assemblages not studied before, as well as a modern pellet assemblage collected from inside the cave. These …

No need to shout: Effect of signal loudness on sibling communication in barn owlsTyto alba

2017

In animal communication, signal loudness is often ignored and seldom measured. We used a playback experiment to examine the role of vocal loudness (i.e., sound pressure level) in sibling to sibling communication of nestling barn owls Tyto alba. In this species, siblings vocally negotiate among each other for priority access to parental food resources. Call rate and call duration play key roles in this vocal communication system, with the most vocal nestlings deterring their siblings from competing for access to the food item next delivered by parents. Here, we broadcast calls at different loudness levels and call rate to live nestlings. The loudness of playback calls did not affect owlets' …

Sorption of Acid Green 16 from Aqueous Solution onto Low-moor Peat and Smectite Clay Co-occurring in Lignite of Belchatow Mine Field

2015

Celem badań było wyznaczenie pojemności sorpcyjnej iłu smektytowego i torfu niskiego towarzyszących pokładom złóż węgli brunatnych w stosunku do barwnika Acid Green 16 (AG–16) oraz określenie mechanizmu jego wiązania. Wyniki wskazały, że badany torf niski był skutecznym sorbentem barwnika AG-16 w całym zakresie stężeń początkowych (1–1000 mg/dm3), natomiast ił smektytowy – jedynie z zakresie stężeń wysokich (> 250 mg/dm3). W wyniku aktywacji termicznej iłu nastąpił wzrost jego pojemności sorpcyjnej w stosunku do badanego barwnika. Proces sorpcji barwnika przebiegał przy ujemnie naładowanej powierzchni sorbentów i wskazywał, że jednym z mechanizmów wiązania barwnika AG–16 były oddziaływania …

Kilka uwag o alkoholu i tytoniu w życiu żołnierzy polskich w XVII w. i w pierwszej połowie XVIII w

2017

For centuries alcohol had constituted a key component of soldiers’ diet. As early as in ancient times, health benefits of wine and its impact on human body were appreciated, foremostly its germicidal properties. Probably alcohol was popular among soldier of the first Piasts or knight of the time of regional disintegration, time of king Władysław 1 the Elbow-high, Casimir the Great or kings of the Jagiellonian dynasty. It may be presumed that the former only drank beer, however, knights in XIV-XV treated it as a common everyday beverage, relishing wine for special occassions and during feasts. In XVI century the list of alcoholic beverages was enriched by vodka - aqua vitae. In the first hal…

Òliba, Lechuza común (VER0000119)

Altres noms vulgars: Barn Owl (Anglès), Effraie des clochers (Francès), Europäische Schleiereule (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 2-2 Valencia

Òliba, Lechuza común (VER0000210)

Barn Owl (Anglès), Effraie des clochers (Francès), Europäische Schleiereule (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 2-2 Valencia 26

Òliba, Lechuza común (VER0000120)

Altres noms vulgars: Barn owl guttata (Anglès), Effraie des clochers guttata (Francès), Schleiereule-guttata (Alemany) Gabinet de Vertebrats (Departament de Zoologia), Facultat de Ciències Biològiques (Campus de Burjassot), C/ Doctor Moliner, s/n, Bloque B. 5é plant, Burjassot (Valencia). Armari: 2-2 Valencia

Grey Heron Ardea cinerea (N. 5); Little Egret Egretta garzetta (N. 6); Little Ringed Plover Charadrius dubius (N. 7); Temminck’s Stint Calidris temmi…

2019

Grey Heron Ardea cinerea; Little Egret Egretta garzetta; Little Ringed Plover Charadrius dubius; Temminck’s Stint Calidris temminckii; Barn Owl Tyto alba.