Does baiting influence the relative composition of the diet of foxes?

2006 ◽  
Vol 33 (6) ◽  
pp. 481 ◽  
Author(s):  
Michael W. Roberts ◽  
Nick Dexter ◽  
Paul D. Meek ◽  
Matt Hudson ◽  
William A. Buttemer
Keyword(s):  
National Park ◽  
Common Species ◽  
Predator Pressure ◽  
Relative Composition ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Fox Control ◽  
Swamp Wallaby ◽  
Ringtail Possum

The changes in the diet of foxes (Vulpes vulpes) in the Jervis Bay Region was assessed following a long-term baiting program by analysing the composition of fox faecal excreta (scats). In all, 470 fox scats were collected between April and August 2003 from two baited sites, Booderee National Park (BNP) and Beecroft Peninsula, and from two unbaited sites in the southern and northern parts of Jervis Bay National Park (SJBNP and NJBNP respectively). Diet was compared between these sites and mammalian diet was also compared from scats collected before baiting in 1996 and after baiting in 2000 at Beecroft Peninsula and in 2001 at Booderee National Park. In 2003, the most common species consumed by foxes was the common ringtail possum (Pseudocheirus peregrinus), except at unbaited NJBNP, where the swamp wallaby (Wallabia bicolor) was the most frequent dietary item. Significant dietary differences were found between unbaited and baited sites, with the long-nosed bandicoot (Perameles nasuta) and P. peregrinus featuring more in the diet of foxes from the baited sites. Marked increases in the frequency of occurrence of P. peregrinus and P. nasuta in fox scats occurred from before baiting through to after baiting. Relative fox abundance, as indexed by the number of scats collected per kilometre, was lowest in Booderee, followed by Beecroft, then SJBNP, with NJBNP having the highest relative abundance of foxes. We suggest that baiting did affect the diet of foxes on both peninsulas and that the dietary changes across baiting histories were intrinsically related to an increase in abundance in some taxa as a result of relaxed predator pressure following sustained fox control. However, the lack of unbaited control sites over the whole study precludes a definitive conclusion.

Geographic variation in the diet of the powerful owl (Ninox strenua) at a local scale

2013 ◽  
Vol 61 (5) ◽  
pp. 372 ◽  
Author(s):  
Rohan J. Bilney
Keyword(s):  
Coastal Forests ◽  
Forest Sites ◽  
Sugar Glider ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Dietary Variation ◽  
Conservation Concern ◽  
Petaurus Breviceps ◽  
Ringtail Possum

This study reports the diet of the powerful owl (Ninox strenua) in East Gippsland, from a dataset of 2009 vertebrate prey items collected from 53 sites. Mammals dominated the diet at all sites, but birds were also consumed regularly. The greater glider (Petauroides volans) was the dominant dietary item across the region in terms of both frequency of consumption and biomass contribution. There was geographical dietary variation between coastal and foothill forest sites, with the sugar glider (Petaurus breviceps) and birds consumed more frequently in foothill forests, whereas the common ringtail possum (Pseudocheirus peregrinus) was frequently consumed only in coastal forests. Typically, a higher percentage of powerful owl diet comprised birds closer to cleared land. The dietary reliance upon hollow-dependent mammals in foothill forests (averaging >70%) is of conservation concern, especially when non-hollow-dependent prey are rare. Forest management activities, especially logging, that reduce densities of hollow-bearing trees in the landscape are therefore likely to decrease the long-term carrying capacity of the landscape for the powerful owl.

scholarly journals Taxonomy and Ecology of Ectomycorrhizal Macrofungi of Grand Teton National Park

1986 ◽  
Vol 10 ◽  
pp. 99-101
Author(s):  
Kent McKnight ◽  
Kimball Harper ◽  
Karl McKnight
Keyword(s):  
National Park ◽  
Common Species ◽  
Grand Teton National Park ◽  
The Common

The broad, long-term objectives of this study are (1) to determine what species of higher fungi grow in forest, range, and pasturelands in and around Grand Teton National Park: (2) to appraise their role in the ecosystem; and (3) to prepare descriptions, keys and illistrations for the common species. These are approached simultaneously although smaller, specific segments are emphasized in different collecting seasons.

scholarly journals Taxonomy and Ecology of Ectomycorrhizal Macrofungi of Grand Teton National Park

1989 ◽  
Vol 13 ◽  
pp. 106-110
Author(s):  
Kent McKnight ◽  
Meinhard Moser ◽  
Harry Thiers ◽  
Joseph Ammirati
Keyword(s):  
National Park ◽  
Field Studies ◽  
Common Species ◽  
Grand Teton National Park ◽  
The Common ◽  
Park Area

The 1989 field studies continue the inventory of macrofungi known to occur in the Grand Teton-Yellowstone Park area. The long-term objectives of this study are: 1. to determine which species grow in forest, range, and pasturelands in and around Grand Teton National Park; 2. to gain a better understanding of their role in the ecosystem; and 3. to prepare descriptions, keys, and illustrations for the common species.

Population abundance of the common hippopotamus Hippopotamus amphibius in the Haut Niger National Park, Republic of Guinea / Abondance de la population d'hippopotame commun Hippopotamus amphibius dans le Parc National du Haut Niger, République de Guinée

Mammalia ◽  
2006 ◽  
Vol 70 (1-2) ◽  
Author(s):  
David Brugière ◽  
Bakary Magassouba ◽  
Amidou Sylla ◽  
Halimou Diallo ◽  
Mamadou Sow
Keyword(s):  
National Park ◽  
Buffer Zone ◽  
Wet Season ◽  
Republic Of Guinea ◽  
Hippopotamus Amphibius ◽  
The Status ◽  
Grazing Area ◽  
The Common ◽  
The Republic

AbstractThe Republic of Guinea is thought to contain the largest population of common hippopotamus in West Africa. However, no systematic field survey has been carried out recently and the information available is limited to informal observations. To clarify the status of the common hippopotamus in Guinea, we carried out a biannual population survey along the section of the Niger River (the largest river in Guinea) within the Haut Niger National Park. We counted 93 hippopotamuses in 28 groups in the dry season and 77 hippopotamuses in 23 groups in the wet season. Mean group size and number of neonates did not change between the seasons. Hippopotomuses were more numerous along the river sections bordering uncultivated floodplains. This underlines the significance of this habitat (which is used as a grazing area) for conservation of this species. Haut Niger National Park is the most important protected area in Guinea for conservation of the common hippopotamus. Hippopotamus-human and -cattle conflicts in terms of floodplain use in the park's buffer zone should be closely monitored. Floodplain conversion to rice fields represents one of the most important threats to the long-term conservation of hippopotamus populations in Guinea.

Long term monitoring of the common loon (Gavia immer) population on 18 lakes in Kejimkujik National Park, Nova Scotia, Canada

2009 ◽  
Vol 30 (5) ◽  
pp. 705-708
Author(s):  
Joseph Kerekes ◽  
Peter Hope ◽  
Chris McCarthy ◽  
Sally O'Grady
Keyword(s):  
Nova Scotia ◽  
National Park ◽  
Gavia Immer ◽  
Common Loon ◽  
The Common ◽  
Long Term Monitoring ◽  
Kejimkujik National Park ◽  
Term Monitoring

Isolation, partial sequence and asynchronous appearance during lactation of lysozyme and α-lactalbumin in the milk of a marsupial, the common ringtail possum (Pseudocheirus peregrinus)

1989 ◽  
Vol 94 (4) ◽  
pp. 775-778 ◽  
Author(s):  
Kevin Nicholas ◽  
Marion Loughnan ◽  
Michael Messer ◽  
Sarah Munks ◽  
Mervyn Griffiths ◽  
...  
Keyword(s):  
Partial Sequence ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Ringtail Possum

Diet of an inland population of the common ringtail possum (Pseudocheirus peregrinus)

2016 ◽  
Vol 38 (1) ◽  
pp. 130 ◽  
Author(s):  
Eden Hermsen ◽  
Anne Kerle ◽  
Julie M. Old
Keyword(s):  
New South ◽  
Habitat Requirements ◽  
South Wales ◽  
Pine Trees ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Microhistological Analysis ◽  
Vegetation Samples ◽  
Cypress Pine ◽  
Ringtail Possum

Populations of the common ringtail possum (Pseudocheirus peregrinus) in inland New South Wales have declined or disappeared. Habitat requirements and diet of these populations are poorly understood. Determining the diet of inland ringtail possums is crucial to understanding the factors limiting their survival, and was the focus of this study. Spotlighting surveys were conducted to locate ringtail possums, and scat and vegetation samples were collected for microhistological analysis. Ringtail possums were most frequently observed in red stringybark followed by bundy box and black cypress pine trees, and this correlated with the most common dietary items consumed.

scholarly journals Mushrooms of Grand Teton National Park

1980 ◽  
Vol 4 ◽  
pp. 58-61
Author(s):  
Kent McKnight ◽  
Kimball Harper ◽  
Karl McKnight
Keyword(s):  
Resource Management ◽  
National Park ◽  
Common Species ◽  
Fruiting Bodies ◽  
Grand Teton National Park ◽  
The Common

This study attempts to inventory the mushrooms and related fungi of the Park and to assemble correlative data useful in park resource management and utilization. It is directed toward (1) determining what species of higher fungi grow in and around Grand Teton National Park; (2) appraising their role in the ecosystem; and (3) preparing descriptions, illustrations, and where possible, keys for the common species. Fungi included are mostly Ascomycetes and Basidiomycetes with large or otherwise conspicuous fruiting bodies. Collecting is not confined to Grand Teton National Park but includes sites with similar ecology in the areas surrounding the Park.

Pharmacokinetics of enrofloxacin following oral and subcutaneous administration in the common ringtail possum (Pseudocheirus peregrinus )

2015 ◽  
Vol 38 (5) ◽  
pp. 482-487 ◽  
Author(s):  
T. F. Scheelings ◽  
J. L. Devi ◽  
A. P. Woodward ◽  
T. Whittem
Keyword(s):  
Subcutaneous Administration ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Ringtail Possum

Preliminary Microscopic Investigations of the Digesta Derived From Foliage of Eucalyptus-Ovata (Labill) in the Digestive-Tract of the Common Ringtail Possum, Pseudocheirus-Peregrinus (Marsupialia)

1986 ◽  
Vol 34 (2) ◽  
pp. 157 ◽  
Author(s):  
TP Obrien ◽  
A Lomdahl ◽  
G Sanson
Keyword(s):  
Cell Walls ◽  
Faecal Pellets ◽  
Partial Digestion ◽  
Gut Function ◽  
Pseudocheirus Peregrinus ◽  
The Common ◽  
Eucalyptus Ovata ◽  
Micro Organisms ◽  
Microscopic Investigations ◽  
Ringtail Possum

A method is described that stabilizes vacuolar tannins in unchewed leaves of Eucalyptus ovata. This method, with light microscopy and electron microscopy, was used to study the fate of digesta in the gut of the common ringtail possum Pseudocheirus peregrinus. Normal animals (fed fresh foliage and practising coprophagy) were compared with animals denied access either to fresh foliage or to soft faecal pellets in the week before they were killed. Both manipulations appear to disturb gut function and create a need for caution in interpreting the observations. Nonetheless the results demonstrate some tanning of leaf cytoplasts in the ringtail possum, but the quantitative significance of the dietary losses so incurred is difficult to estimate. Partial digestion of cell walls and tanned cytoplasts occurs in the caecum, where massive populations of micro-organisms become attached to digestion-resistant tissue components. These 'microbial rafts' are reingested as soft pellets by coprophagy and the bacteria largely digested.

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