Roosting behaviour and the tree-hollow requirements of bats: insights from the lesser long-eared bat (Nyctophilus geoffroyi) and Gould

2021 ◽  
Author(s):  
Linda F. Lumsden ◽  
Stephen R. Griffiths ◽  
John E. Silins ◽  
Andrew F. Bennett
Keyword(s):  
Tree Hollow

Long-term monitoring of nest boxes and nest logs in a tree-hollow depleted box–ironbark forest in north-eastern Victoria

2021 ◽  
Author(s):  
Bruce R. Quin ◽  
Ross L. Goldingay ◽  
Darren G. Quin ◽  
Eileen Collins ◽  
Neville Bartlett ◽  
...  
Keyword(s):  
Nest Boxes ◽  
North Eastern ◽  
Long Term Monitoring ◽  
Term Monitoring ◽  
Tree Hollow

scholarly journals A tree hollow dynamics simulation model

1999 ◽  
Vol 123 (2-3) ◽  
pp. 179-194 ◽  
Author(s):  
I.R Ball ◽  
D.B Lindenmayer ◽  
H.P Possingham
Keyword(s):  
Simulation Model ◽  
Dynamics Simulation ◽  
Tree Hollow

Saproxylic Cetoniidae (Coleoptera: Scarabaeoidea): A ‘Females’ World’ or a Question of Dependence on Deadwood?

2020 ◽  
Vol 49 (2) ◽  
pp. 288-295
Author(s):  
Sandra Martínez-Pérez ◽  
Gerardo Sanchez-Rojas ◽  
Eduardo Galante ◽  
Estefanía Micó
Keyword(s):  
Sex Ratio ◽  
Species Conservation ◽  
Male Competition ◽  
Oak Forest ◽  
Mediterranean Forests ◽  
Tree Hollows ◽  
Biased Sex Ratio ◽  
Dispersal Abilities ◽  
Tree Hollow

Abstract We explored the dependence of some Cetoniidae species on saproxylic environments and microhabitats in a Mediterranean oak forest by analyzing species collected using different kinds of traps—log emergence, hollow emergence, and interception traps—and the sex ratio of the species in each trap. Comparing the sex ratio of the species collected via emergence versus interception was useful to unravel the degree of dependence on saproxylic microhabitats. Among the species studied, Cetonia aurataeformis Curti, 1913 (Coleoptera: Cetoniidae) was the only obligate tree hollow inhabitant. Special attention should thus be paid to the maintenance of tree hollows for the species’ conservation in Mediterranean forests. A gradient of dependence on tree hollows was established from the more dependent Protaetia (Potosia) cuprea (Fabricius, 1775) (Coleoptera: Cetoniidae) and Protaetia (Potosia) opaca (Fabricius, 1787) (Coleoptera: Cetoniidae) to the less dependent Protaetia (Netocia) morio (Fabricius, 1781) (Coleoptera: Cetoniidae). All the latter species can be considered facultatively dependent, to varying degrees, on tree hollows. By contrast, the saproxylic affinity of Protaetia (Netocia) oblonga (Gory and Percheron, 1833) (Coleoptera: Cetoniidae), Tropinota squalida (Scopoli, 1783) (Coleoptera: Cetoniidae) and Oxythyrea funesta (Poda, 1761) (Coleoptera: Cetoniidae) was doubtful. Generally, the sex ratio of the studied species was female-biased. A possible explanation may be local male competition for females, suggesting the Cetoniinae is a female world. However, the range of difference in the female-biased sex ratio among species suggests it is important to explore other possible causes, such as differences in dispersal abilities.

Tree Hollow Requirements of Leadbeater's Possum and Other Possums and Gliders in Timber Production Ash Forests of the Victorian Central Highlands.

1988 ◽  
Vol 15 (4) ◽  
pp. 347 ◽  
Author(s):  
AP Smith ◽  
D Lindenmayer
Keyword(s):  
Forest Management ◽  
Regression Models ◽  
Timber Production ◽  
Total Density ◽  
Management Options ◽  
Eucalyptus Regnans ◽  
Dead Trees ◽  
Production Forests ◽  
Leadbeater's Possum ◽  
Tree Hollow

A model is presented of relationships between the density of Leadbeater's possum (Gymnobelideus leadbeateri) and other tree-hollow dependent possums and gliders and the density of potential nest trees (PNT) in Eucalyptus regnans/E. delegatensis forests, where PNT are defined as all living or dead trees with d.b.h. more than or equal to 0.5 m and ht. more than or equal to 6 m. The total density of all possums and gliders increased linearly with PNT density, in an approx. 1:1 ratio, then plateaued at an av. max. density of 11.3 animals per 3 ha once PNT density exceeded 12 per 3 ha. Regression models predict that G. leadbeateri will be absent from the majority of sites with less than 4.2 PNT per 3 ha and will increase linearly in density to an av. max. of 7.8 animals (or 3.1 colonies) per 3 ha on sites with more than 10 PNT per 3 ha. The absence of G. leadbeateri from sites with fewer than 4.2 PNT per 3 ha was attributed to: competition for hollows from other species; use of more than one PNT by individual colonies; and unsuitability of hollows in up to 2 out of every 3 PNT. Regression models predict that current logging prescriptions in ash forests, which call for retention of a minimum of 15 trees for every 10 ha clear felled, will result in elimination of G. leadbeateri from the majority of clearfelled coupes, and will reduce the total number of hollow-dependent possums and gliders to less than one-eighth of their av. max. density in unlogged forest. A range of forest management options are presented and discussed to ensure the continued availability of PNT for hollow-dependent arboreal mammals in timber production forests.

Post-larval stages of Ascoschoengastia (Laurentella) lorius (Gunther) (Acariformes: Trombiculidae) provide evidence for a nest-based life history

Zootaxa ◽  
2010 ◽  
Vol 2680 (1) ◽  
pp. 55
Author(s):  
MATTHEW SHAW
Keyword(s):  
Life History ◽  
Papua New Guinea ◽  
New Guinea ◽  
Supporting Evidence ◽  
Ecological Groups ◽  
Iron Range ◽  
Larval Stages ◽  
Australian Species ◽  
Cape York ◽  
Tree Hollow

While certain ecological groups of trombiculid mites are thought to be specialised for nest occupation, supporting evidence is rare. A putatively nest-specialised trombiculid is here described in detail. Larvae, a deutonymph and adults of the trombiculid genus Ascoschoengastia were collected from three tree hollow nests occupied by Eclectus parrots (Eclectus roratus) and Sulphur-crested Cockatoos (Cacatua galerita) at Iron Range, Cape York Peninsula. The larvae are A. (Laurentella) lorius (Gunther), a species originally described from an Eclectus parrot in Papua New Guinea. Deutonymph and adult Ascoschoengastia are also assigned to this species based on their co-occurrence with larvae in this specific and isolated microhabitat. A. (L.) lorius is inferred to have a nest-based life history. Active stases are described with attention to sensory setae. The previous synonomy of A. (L.) daria with A. (L.) lorius is rejected. A key to Australian species of Ascoschoengastia is presented.

The characteristics of squirrel glider (Petaurus norfolcensis) den trees in subtropical Australia

2008 ◽  
Vol 56 (1) ◽  
pp. 13 ◽  
Author(s):  
Georgia L. Beyer ◽  
Ross L. Goldingay ◽  
David J. Sharpe
Keyword(s):  
New South ◽  
Effective Management ◽  
Living Tree ◽  
Breast Height ◽  
North East ◽  
South Wales ◽  
Dead Trees ◽  
Squirrel Glider ◽  
Tree Hollow ◽  
Subtropical Australia

Effective management of tree-hollow-dependent wildlife requires a sound knowledge of the characteristics of the trees used for shelter or breeding. We used radio-tracking to identify the den trees of squirrel gliders (Petaurus norfolcensis) in south-east Queensland (Qld) and north-east New South Wales (NSW). Squirrel gliders used dead trees as well as 13 species of living tree for dens across the two locations. Dead trees accounted for a large percentage of dens (54% of 48 dens in Qld, and 50% of 18 dens in NSW) despite comprising only 3–10% of the forest (trees >20 cm diameter at breast height (dbh)) at each location. This preference is largely due to dead trees being more likely to contain hollows, accounting for 26–44% of available hollow-bearing trees. Mean den tree size (dbh) was 48.9 ± 2.4 cm in Qld and 62.8 ± 5.6 cm in NSW. Den entrance height averaged 6.8 ± 1.2 m in Qld and 11.9 ± 1.3 m in NSW. Fissures in the trunk and holes in branches were the most common of six hollow types used. At one location branch end hollows were ignored relative to their availability. Den entrances varied in size (2.5–12 cm wide) but most were ≤5 cm in diameter. Entrance size of hollows appears to be the hollow attribute of most importance to squirrel gliders. Monitoring of these den trees over several years revealed the collapse of three dead den trees at each location, which is equivalent to an annual loss of 3% of den trees. Further research is needed to determine whether this will lead to a future shortage of den trees.

Cryptococcus neoformansvar. gattii- evidence for a natural habitat related to decaying wood in a pottery tree hollow

1998 ◽  
Vol 36 (2) ◽  
pp. 119-122 ◽  
Author(s):  
LAZERA ◽  
CAVALCANTI ◽  
TRILLES ◽  
NISHIKAWA ◽  
WANKE
Keyword(s):  
Natural Habitat ◽  
Decaying Wood ◽  
Tree Hollow
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