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Full-Text Articles in Life Sciences
Morph Matters: Aggression Bias In A Polymorphic Sparrow, Brent M. Horton, Mark E. Hauber, Donna L. Maney
Morph Matters: Aggression Bias In A Polymorphic Sparrow, Brent M. Horton, Mark E. Hauber, Donna L. Maney
Publications and Research
In species with discrete morphs exhibiting alternative behavioral strategies, individuals may vary their aggressive behavior in competitive encounters according to the phenotype of their opponent. Such aggression bias has been documented in multiple polymorphic species evolving under negative frequency-dependent selection, but it has not been well-studied under other selection regimes. We investigated this phenomenon in white-throated sparrows (Zonotrichia albicollis), a passerine with plumage polychromatism maintained by disassortative mating. The two distinct color morphs differ with respect to reproductive strategy in that white-striped birds invest more in territorial aggression than tan-striped birds. Whether territorial aggression in this species is biased according …
Rehg Studies Monkeys To Better Understand Humans, Aldemaro Romero Jr.
Rehg Studies Monkeys To Better Understand Humans, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Schulz Investigates Threat Of Invasive Species, Aldemaro Romero Jr.
Schulz Investigates Threat Of Invasive Species, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Notes On The Diet Of The Malay Civet (Viverra Tangalunga) And Other Civets In Logged And Unlogged Lowland Dipterocarp Rain Forests In Sabah, Borneo, Christina P. Colon, John B. Sugau
Notes On The Diet Of The Malay Civet (Viverra Tangalunga) And Other Civets In Logged And Unlogged Lowland Dipterocarp Rain Forests In Sabah, Borneo, Christina P. Colon, John B. Sugau
Publications and Research
Civet diets were examined in a logged and unlogged Bornean rain forest. Malay civets (Viverra tangalunga) consumed invertebrates, fruit, rodents, insectivores, birds, snakes and lizards, and appear to show preference for centipedes and scorpions. Other civet species consumed fruit, such as figs, Connarus sp. and Annona sp., particularly in the unlogged forest, but also consumed invertebrates and vertebrates. Reduced fruit consumption observed in the logged forest may be due to lower availability and may be offset by increased consumption of invertebrates. The increased overlap in diet between Malay civets and other civets in disturbed areas may lead to …
Parasites Of Civets (Mammalia, Viverridae) In Sabah, Borneo: A Coprological Survey, Christina P. Colon, Sharon Patton
Parasites Of Civets (Mammalia, Viverridae) In Sabah, Borneo: A Coprological Survey, Christina P. Colon, Sharon Patton
Publications and Research
Parasite data were collected from unlogged and selectively logged lowland rain forests in Borneo. Scat from a female Viverra tangalunga (Malay civet) in the unlogged forest contained eggs of Capillaria spp., Trichuris sp., Mamomoganomus sp., and nematode larvae. Scat attributed to V. tangalunga contained reproductive products (eggs/oocysts/cysts/larvae) of Capillaria sp., Toxocara sp., Ancylostoma sp. (probably A. ceylanicum), Isospora spp., strongylate-type eggs (probably Ancylostoma spp.), Paragoni mus sp. and other Trematoda eggs, Monocystis sp. cysts, Gnathostoma sp. (probably G. spinigerum), the lungworm Viverrostrongylus brauni, pinworm-type eggs, Eimeria spp., Sarcocystis-type sporocyst, dermanysid mites and mesostigmatid mites. Parasites from gut samples from two …