scholarly journals There is a critical weight range for Australia's declining tropical mammals

2014 ◽  
Vol 23 (9) ◽  
pp. 1058-1061 ◽  
Author(s):  
Brett P. Murphy ◽  
Hugh F. Davies
Keyword(s):  
Critical Weight ◽  
Weight Range

Is there value in reviewing distribution models? A case study using critical weight range mammals in southeastern Australia

2007 ◽  
Vol 13 (4) ◽  
pp. 227
Author(s):  
Trent D. Penman ◽  
Christopher P. Slade
Keyword(s):  
Review Process ◽  
Statistical Modelling ◽  
Distribution Models ◽  
Critical Weight ◽  
Weight Range ◽  
Recovery Planning ◽  
Southeastern Australia ◽  
South Wales ◽  
Modelling Techniques ◽  
Regional Forest

Models predicting species distributions have become a common tool for wildlife management. These models were used extensively in the development of regional forest agreements (RFAs) throughout Australia. Each RFA is reviewed after it has been active for five years and one component may be to review the distribution models. Over this time there has been an increase in the number of records for many species and improvements in statistical modelling techniques. Here we prepare updated distributional models for three critical weight range mammals in the Eden Management Region in southeastern New South Wales. These models are then used to examine the value of updating models for selected species during the RFA review process. All revised models predicted greater areas of habitat as suitable, largely due to the greater number of known localities. The relative value of many sites changed, thus highlighting areas which require further or more intensive survey work. This study suggests that there is value in preparing models for some species during the RFA review process. For many species updating models can also be valuable in the development of specific research objectives or species recovery planning.

Remnant vegetation provides genetic connectivity for a critical weight range mammal in a rapidly urbanising landscape

2019 ◽  
Vol 190 ◽  
pp. 103587 ◽  
Author(s):  
Kym Ottewell ◽  
Georgina Pitt ◽  
Blair Pellegrino ◽  
Ricky Van Dongen ◽  
Janine Kinloch ◽  
...  
Keyword(s):  
Genetic Connectivity ◽  
Critical Weight ◽  
Weight Range ◽  
Remnant Vegetation

Invasive anuran driven trophic cascade: An alternative hypothesis for recent critical weight range mammal collapses across northern Australia

2020 ◽  
Vol 22 (6) ◽  
pp. 1967-1982 ◽  
Author(s):  
Ian J. Radford ◽  
Leigh-Ann Woolley ◽  
Chris R. Dickman ◽  
Ben Corey ◽  
Dane Trembath ◽  
...  
Keyword(s):  
Trophic Cascade ◽  
Alternative Hypothesis ◽  
Northern Australia ◽  
Critical Weight ◽  
Weight Range

North Kimberley Mammals – on the fringe of the high-rainfall zone

2015 ◽  
Vol 37 (2) ◽  
pp. 132 ◽  
Author(s):  
Jeff Turpin
Keyword(s):  
Large Scale ◽  
Northern Australia ◽  
Mammal Species ◽  
Critical Weight ◽  
Weight Range ◽  
Far North ◽  
The North ◽  
Survey Technique ◽  
Threatening Processes ◽  
Important Habitat

Six areas were surveyed for terrestrial fauna during remote hiking expeditions in the Kimberley during 2009, 2010, 2013 and 2014. A total of 19 mammal species were recorded, comprising one introduced and 18 native taxa. Significant populations of the northern quoll, monjon, golden-backed tree-rat and scaly-tailed possum were recorded, including from areas where the species were previously unknown. Fractured, rocky terrain in association with rainforest appears to provide important habitat for these species. The use of motion-sensitive cameras, particularly in areas where foraging signs are evident (tracks, diggings, feeding middens, scats) is shown to be a successful and complementary survey technique in detecting critical-weight-range species in the north Kimberley. Such taxa appear to persist in the far north Kimberley in the absence of several threatening processes attributable to large-scale mammal decline across northern Australia.

ÜBER DIE ANTAGONISTISCHE WIRKUNG VON TRIJODTHYRONIN UND PROGESTERON AUF DEN PREDNISOLONEFFEKT AM EPIPHYSENKNORPEL (PRÜFUNG DER REISSFESTIGKEIT)

1963 ◽  
Vol 42 (1) ◽  
pp. 29-38 ◽  
Author(s):  
L. Ther ◽  
H. Schramm ◽  
G. Vogel
Keyword(s):  
Tensile Strength ◽  
Dose Response ◽  
Single Injection ◽  
Relative Effectiveness ◽  
Prednisolone Acetate ◽  
Response Curves ◽  
Deoxycorticosterone Acetate ◽  
Weight Range ◽  
Diuretic Action ◽  
Maximal Load

ABSTRACT Longitudinal tension exerted on a killed rat's femur results always in rupture on the same place viz: the distal epiphyseal line. The power required to produce this effect can be measured with a simple dynamometer. The tensile strength increases with advancing age and during exsiccation (thirst). In untreated rats (weight range 100–120 g) this value amounts to about 1.5–1.8 kg. Tensile strength of the femoral epiphyseal line may be influenced by hormones. Corticosteroids such as prednisolone acetate and cortisol acetate increase the level of maximal load to more than 2.0 kg. In general the effect of a single injection reaches a climax after 48 hours. Dose-response-curves can be established and relative effectiveness may be gathered therefrom. Deoxycorticosterone acetate likewise increases tensile strength in spite of the fact that contrary to prednisolone exhibiting diuretic action this compound has a water retaining effect. Triiodothyronine and progesterone when given alone produce a slight decrease in tensile strength. The effect of prednisolone when given simultaneously with one of these two compounds is antagonized: this phenomenon is more pronounced in the case of triiodothyronine.

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