No mammal recovery from feral cat experimental exclusion trials in Kakadu National Park

Diets were determined for feral cats from the Victorian Mallee, Kinchega National Park in western New South Wales, and the Victorian eastern highlands. The percentages by weight of introduced mammals eaten (mainly European rabbit and house mouse) were 85, 64 and 45 for Mallee, Kinchega and eastern highland cats, respectively, of which rabbit contributed 74, 56 and 43% respectively to the total diets. The weights of native mammals eaten were 2% and 4% for Mallee and Kinchega cats; the species found were common brushtail possum, planigales and bats. For eastern highland cats the weight of native mammals eaten was 40% and at least 11 species were represented: the most important being southern bush rat (16%), common ringtail possum (8%), common brushtail and/or mountain brushtail possums (5%), brown antechinus (470) and sugar glider (4%). The weights of birds eaten were 9, 18 and 13% for Mallee, Kinchega and eastern highland cats. Less important foods were reptiles, amphibians, fish, arthropods and annelids; some food, both carrion and human food scraps, was scavenged. Seasonal changes in composition of the diet were evident in Mallee cats.

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Diet of Feral Cats in Hawai?i Volcanoes National Park

Pacific Conservation Biology ◽

10.1071/pc070244 ◽

2007 ◽

Vol 13 (4) ◽

pp. 244 ◽

Cited By ~ 7

Author(s):

Steven C. Hess ◽

Heidi Hansen ◽

Daniel Nelson ◽

Roberta Swift ◽

Paul C. Banko

Keyword(s):

Digestive Tract ◽

Small Mammals ◽

Small Mammal ◽

Mus Musculus ◽

National Park ◽

Feral Cat ◽

Feral Cats ◽

Mauna Loa ◽

Invertebrate Prey ◽

Kīlauea Volcano

We documented the diet of feral cats by analysing the contents of 42 digestive tracts from Kilauea and Mauna Loa In Hawai'i Volcanoes National Park. Small mammals, invertebrates, and birds were the most common prey types consumed by feral cats. Birds occurred in 27.8?29.2% of digestive tracts. The total number of bird, small mammal, and invertebrate prey differed between Kilauea and Mauna Loa. On Mauna Loa, significantly more (89%) feral cats consumed small mammals, primarily rodents, than on Kilauea Volcano (50%). Mice (Mus musculus) were the major component of the feral cat diet on Mauna Loa, whereas Orthoptera were the major component of the diet on Kilauea. We recovered a mandible set, feathers, and bones of an endangered Hawaiian Petrel (Plerodroma sandwichensis) from a digestive tract from Mauna Loa. This specimen represents the first well-documented endangered seabird to be recovered from the digestive tract of a feral cat in Hawai'i and suggests that feral cats prey on this species.

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Ultrastructural Localization of Phycocyanin in the Acidophilic, Thermophilic Alga, Cyanidium Caldarium

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100072757 ◽

1973 ◽

Vol 31 ◽

pp. 462-463

Author(s):

M. R. Edwards ◽

J. D. Mainwaring

Keyword(s):

Yellowstone National Park ◽

National Park ◽

Ultrastructural Localization ◽

Review Of Literature ◽

Cyanidium Caldarium ◽

Taxonomic Rank ◽

Thin Sections ◽

Standard Methods ◽

Laboratory Cultures

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.

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