Relative abundance, diet and roost selection of the tube-nosed insect bat, Murina florium, on the Atherton Tablelands, Australia

1998 ◽  
Vol 25 (3) ◽  
pp. 261 ◽  
Author(s):  
Martin Schulz ◽  
David Hannah
Keyword(s):  
Relative Abundance ◽  
Dead Leaf ◽  
Faecal Pellets ◽  
Faecal Analysis ◽  
Communal Roost ◽  
Roost Selection ◽  
Middle Range ◽  
North Eastern ◽  
Incidental Exposure ◽  
Selection Of

The relative abundance, diet and roost selection of the tube-nosed insect bat, Murina florium (Vespertilionidae), was investigated at Mt Baldy and Ravenshoe State Forests in north-eastern Queensland. In all, 34 M. florium were captured in 263 trap-nights; this was in the middle range of microchiropteran bat species captured. Faecal analysis indicated that the major prey items of M. floriumwere Coleoptera and Araneida. The presence of the latter prey item in faecal pellets suggests that the species is a partial gleaner. Low levels of predominantly myrtaceous pollen collected from head and throat fur indicated only incidental exposure. M. florium used a variety of external roosts in rainforest, with the only communal roost being located in a fallen Archontophoenix leaf suspended from a liana. Other roosts occupied by single M. florium were nests (n = 7) of yellow-throated scrubwrens, Sericornis citreogularis, and fernwrens, Oreoscopus gutturalis, and vertically suspended dead leaf clusters (n = 3). All roosts were located in the rainforest understorey at a mean height of 4.2 m, positioned from close to watercourses up to ridgelines. Bird nests utilised had been modified; the possibility of tent-making behaviour in this species is discussed.

Conservation of a rare arboreal mammal: habitat preferences of the Lumholtz's tree-kangaroo, Dendrolagus lumholtzi

2011 ◽  
Vol 33 (1) ◽  
pp. 5 ◽  
Author(s):  
Sigrid R. Heise-Pavlov ◽  
Sara L. Jackrel ◽  
Spenser Meeks
Keyword(s):  
Habitat Selection ◽  
Function Analysis ◽  
Habitat Preferences ◽  
Structural Features ◽  
Main Trunk ◽  
Faecal Pellets ◽  
Eastern Australia ◽  
North Eastern ◽  
Dendrolagus Lumholtzi ◽  
Selection Of

Success of conservation efforts of large and cryptic mammals is often limited due to a lack of knowledge of their habitat preferences. This study investigates factors that affect the habitat selection of the rare Lumholtz’s tree-kangaroo, Dendrolagus lumholtzi, using signs of its activity. The presence and absence of scratch marks on tree trunks and faecal pellets within a 100-cm radius around them were surveyed on 23 ha within a 65-ha large fragment of rainforest on the Atherton Tablelands, north-eastern Australia in order to classify trees as ‘actively used’ or ‘inactive’. Structural features of the 315 surveyed tree trunks were also recorded. Using discriminant function analysis, ‘actively used’ trees were found to have no epiphytes on the main trunk, less obstruction by neighbouring trees, shrubs or lianas within a 0.5-m radius of the trunk (particularly in the eastern direction), and a smaller diameter at breast height than ‘inactive’ trees. Smaller tree trunks and less obstruction may facilitate a more rapid movement into the canopy as well as provide potential escape routes from predators. More specific knowledge on factors that affect habitat selection of the Lumholtz’ tree-kangaroo will help in a reclassification of the threatened status of this species and assist in more effective conservation efforts.

Musical Features that Aid Sleep

2020 ◽  
pp. 102986492097216
Author(s):  
Gaelen Thomas Dickson ◽  
Emery Schubert
Keyword(s):  
Information Retrieval ◽  
Online Survey ◽  
Music Information Retrieval ◽  
Rhythmic Activity ◽  
Main Frequency ◽  
Middle Range ◽  
Major Mode ◽  
Information Retrieval Methods ◽  
Music Information ◽  
Selection Of

Background: Music is thought to be beneficial as a sleep aid. However, little research has explicitly investigated the specific characteristics of music that aid sleep and some researchers assume that music described as generically sedative (slow, with low rhythmic activity) is necessarily conducive to sleep, without directly interrogating this assumption. This study aimed to ascertain the features of music that aid sleep. Method: As part of an online survey, 161 students reported the pieces of music they had used to aid sleep, successfully or unsuccessfully. The participants reported 167 pieces, some more often than others. Nine features of the pieces were analyzed using a combination of music information retrieval methods and aural analysis. Results: Of the pieces reported by participants, 78% were successful in aiding sleep. The features they had in common were that (a) their main frequency register was middle range frequencies; (b) their tempo was medium; (c) their articulation was legato; (d) they were in the major mode, and (e) lyrics were present. They differed from pieces that were unsuccessful in aiding sleep in that (a) their main frequency register was lower; (b) their articulation was legato, and (c) they excluded high rhythmic activity. Conclusion: Music that aids sleep is not necessarily sedative music, as defined in the literature, but some features of sedative music are associated with aiding sleep. In the present study, we identified the specific features of music that were reported to have been successful and unsuccessful in aiding sleep. The identification of these features has important implications for the selection of pieces of music used in research on sleep.

Intermolecular Hydrogen Bond Plays a Determining Role in Product Selection of Surface Confined Schiff-base Reaction

2021 ◽  
Author(s):  
Huamei Chen ◽  
Guangyuan Feng ◽  
Qiu Liang ◽  
Enbing Zhang ◽  
Yongtao Shen ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Relative Abundance ◽  
Intermolecular Hydrogen Bond ◽  
Intermolecular Hydrogen Bonds ◽  
Product Selection ◽  
Selection Of

Herein, we illustrate how the cooperation of intermolecular hydrogen bonds and conformation flexibility leads to the formation of diverse complex covalent nanostructures on the surface, while the relative abundance of...

“Minor” Aquileian Families Between Noricum and Pannonia

2021 ◽  
Vol 60 (1-2) ◽  
pp. 171-184
Author(s):  
Leonardo Gregoratti
Keyword(s):  
Lake Area ◽  
The North ◽  
North Eastern ◽  
Selection Of

SummaryThe paper deals with the presence of North-eastern Italic families in Northern Pannonia. Through a selection of the epigraphic texts based on the information provided by the texts and the chronology, it is possible to investigate the spreading of Italic traders’ families from Italy, Noricum and Emona to the cities on the north tract of the “Amber Route” and the Balaton Lake area.

scholarly journals Temporal and spatial patterns on serra, Scomberomorus brasiliensis (Teleostei, Scombridae), catches from the fisheries on the Maranhão coast, Brazil

2001 ◽  
Vol 61 (4) ◽  
pp. 541-546 ◽  
Author(s):  
V. da BATISTA ◽  
N. N. FABRÉ
Keyword(s):  
Spatial Patterns ◽  
Relative Abundance ◽  
West Coast ◽  
The West ◽  
Temporal And Spatial Patterns ◽  
Eastern Brazil ◽  
North Eastern ◽  
Displacement Pattern ◽  
Temporal And Spatial ◽  
Demersal Species

The displacement pattern of the serra, Scomberomorus brasiliensis, in North-eastern Brazil was analyzed from landing data recorded from the fleet fishing serra. Serra fishery has two seasons: from September to February (demersal species plus serra), and from March to August (almost only large amounts of serra). S. brasiliensis relative abundance increases similarly along the coast from March, but decreases first on the West coast from June. Records indicate that serra is near the coast at least until September/October in Eastern grounds. From October to March (strongest spawning season) there is no record of shoals on the coast. We concluded that the Maranhão coast is just a part of the migration circuit of S. brasiliensis that may exceed 300 nautical miles.

scholarly journals Food selection of burbot (Lota lota L.) larvae reared in illuminated net cages in mesotrophic Lake Maróz (north-eastern Poland)

2013 ◽  
Vol 22 (1) ◽  
pp. 41-52 ◽  
Author(s):  
Grażyna Furgała-Selezniow ◽  
Andrzej Skrzypczak ◽  
Dariusz Kucharczyk ◽  
Roman Kujawa ◽  
Andrzej Mamcarz ◽  
...  
Keyword(s):  
Food Selection ◽  
Lota Lota ◽  
Mesotrophic Lake ◽  
North Eastern ◽  
Net Cages ◽  
Selection Of

scholarly journals Organisation of funerary areas and character of burial practices at Pohansko near Břeclav (based on a comparison of the cemetery around the second church and the dispersal burial grounds in the stronghold’s southern suburb)

2019 ◽  
Vol 72 (1-2) ◽  
pp. 46-61
Author(s):  
Renáta Přichystalová
Keyword(s):  
Local Community ◽  
The Other ◽  
Burial Practices ◽  
The North ◽  
Burial Customs ◽  
North Eastern ◽  
Different Types ◽  
Burial Rites ◽  
Burial Grounds ◽  
Selection Of

At the early medieval site Břeclav – Pohansko we can distinguish two different types of funerary areas: church cemeteries with clearly defined locus sacer and dispersed burial grounds in settlements, where the boundary between the living and funerary spaces is not clearly defined. The organisation of the area for funerary activities, the selection of the burial place and the homogeneity of applied burial rites in the above-mentioned two types of funerary areas were different. In order to find out how extensive this difference is, we chose several characteristics of funerary areas and compared them with one another. The key determinants were: the spatial structure of funerary areas, and the orientation and position of individuals buried in grave pits. As an example of a church cemetery we chose the cemetery around the second church in the North-Eastern Suburb of Pohansko. The Southern Suburb of the stronghold yielded data related to funerary areas dispersed in and between settlement structures. The comparison of selected characteristics of burial customs identified in the above-mentioned church cemetery and in dispersed cemeteries demonstrates that burials around churches were most probably organised and planned centrally and that the organisation and supervision of funerary activities might have been in the hands of the clergy. The burials in cemeteries within the settlement structure, on the other hand, were organised in accordance with customs of local community. The organisation and supervision of these funerary areas were most probably in the hands of persons approved and authorised by the community, maybe some significant community member, or the “Council of Elders” or pagan priests.

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