Animal Sciences Commons^™

Ecological And Phenotypic Diversification After A Continental Invasion In Neotropical Freshwater Stingrays, Matthew Kolmann, Fernando Pl Marques, James C. Weaver, Mason N. Dean, Joao Pedro Fontenelle, Nathan R. Lovejoy

Faculty Scholarship

Habitat transitions are key potential explanations for why some lineages have diversified and others have not—from Anolis lizards to Darwin's finches. The ecological ramifications of marine-to-freshwater transitions for fishes suggest evolutionary contingency: some lineages maintain their ancestral niches in novel habitats (niche conservatism), whereas others alter their ecological role. However, few studies have considered phenotypic, ecological, and lineage diversification concurrently to explore this issue. Here, we investigated the macroevolutionary history of the taxonomically and ecologically diverse Neotropical freshwater river rays (subfamily Potamotrygoninae), which invaded and diversified in the Amazon and other South American rivers during the late Oligocene to early …

The Natural History Of The Ants Of Michigan's E.S. George Reserve: A 26 Year Study, Mary Talbot

Faculty Scholarship

The results of a 26-summer study of the ants on an 1146 acre (464 ha) natural history preserve in southeastern Michigan are presented. Habitat distribution and nest construction for each of the 87 species are recorded. The sites of collections of each species on the Reserve are shown on maps. In addition, records of colony populations, brood development and nuptial flights of many of the species are presented.

Where The Tiger Survives, Biodiversity Thrives, Philip J. Nyhus, Ronald Tilson

Faculty Scholarship

No abstract provided.

Reintroduction Of The Chinese Tiger, Philip J. Nyhus, Urs Breitenmoser, Ron Tilson

Faculty Scholarship

No abstract provided.

Tackling Biocomplexity With Meta-Models For Species Risk Assessment, Philip J. Nyhus, Robert C. Lacy, Francis R. Westley, Philip S. Miller, Harrie Harrie Vredenburg, Paul C. Paquet, John Pollak

Faculty Scholarship

We describe results of a multi-year effort to strengthen consideration of the human dimension into endangered species risk assessments and to strengthen research capacity to understand biodiversity risk assessment in the context of coupled human-natural systems. A core group of social and biological scientists have worked with a network of more than 50 individuals from four countries to develop a conceptual framework illustrating how human-mediated processes influence biological systems and to develop tools to gather, translate, and incorporate these data into existing simulation models. A central theme of our research focused on (1) the difficulties often encountered in identifying and …

Bearing The Costs Of Human-Wildlife Conflict: The Challenges Of Compensation Schemes, Philip J. Nyhus, Steve A. Osofsky, Paul Ferraro, H Fischer, Francine Madden

Faculty Scholarship

No abstract provided.

Agroforestry, Elephants, And Tigers: Balancing Conservation Theory And Practice In Human-Dominated Landscapes Of Southeast Asia, Philip J. Nyhus, R L. Tilson

Faculty Scholarship

Large mammal populations theoretically are best conserved in landscapes where large protected areas are surrounded by buffer zones, connected by corridors, and integrated into a greater ecosystem. Multi-use buffer zones, including those containing complex agroforestry systems, are promoted as one strategy to provide both economic benefits to people and conservation benefits to wildlife. We use the island of Sumatra, Indonesia to explore the benefits and limitations of this strategy. We conclude that conservation benefits are accrued by expanding the habitat available for large mammals but more attention needs to be focused on how to reduce and respond to human–wildlife conflict …

Incorporating Local Knowledge Into Population And Habitat Viability Assessments: Landowners And Tree Kangaroos In Papua New Guinea, Philip J. Nyhus, J Williams, J Borovansky, O Byers, P Miller

Faculty Scholarship

No abstract provided.

Taking The Bite Out Of Wildlife Damage: The Challenges Of Wildlife Compensation Schemes, Philip J. Nyhus, Hank Fisher, Steve Osofsky, Francine Madden

Faculty Scholarship

No abstract provided.

Dangerous Animals In Captivity: Ex Situ Tiger Conflict And Implication For Private Ownership Of Exotic Animals, Philip J. Nyhus, Ronald L. Tilson, J L. Tomlinson

Faculty Scholarship

The risks associated with tiger attacks on people in the wild are well documented. There may currently be more tigers in captivity than in the wild, but relatively little is known about the risks of injury or death associated with owning and managing captive tigers and other large carnivores. The purpose of this study was to conduct a global assessment of attacks by captive tigers on people, with particular emphasis on cases in the United States. Our analysis of 30 international media sources and additional documents uncovered 59 unique incidents in 1998-2001 in which people were reportedly injured or killed …

Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin

Faculty Scholarship

No abstract provided.

The Natural History Of The Workerless Ant Parasite, Formica Talbotae, Mary Talbot

Faculty Scholarship

The ant Formica talhotae Wilson is a workerless social parasite of the microgrna group, which forms mixed colonies with the host ant Formica ohscuripes Fore!. Queens produce males and females only and there is also no worker brood of F. obscuripes in the parasitized colonies. The small alates have a long flight period stretching from mid-June to late September, with flights taking place on every suitable morning when the temperature is above 71° and rising, when the sun is shining, and when there is no appreciable wind. Flights are best between 78° and 83° F. Once up on plants, alates …

Flights Of The Ant Formica Dakotensis Emery, Mary Talbot

Faculty Scholarship

Not available.

Nest Structure And Flights Of The Ant Formica Obscuriventris Mayr, Mary Talbot

Faculty Scholarship

In southern Michigan the ant Formica obscuriventris Mayr constructs superficial nests under logs and piled-up leaves. Covered runways connect widely spread chambers.In 1962 one colony released approximately 3000 winged ants in 16 flight days between July 27 and August 24th. An estimated 2587 males flew, and the first nine flights were exclusively male. Females took part in six flights, but most (362 of the 422) flew on one day.The best flights occurred when bright sun warmed the ground after cold nights. Males could move out of the nest at 57 [deg]F. and could begin flying at 63 [deg]F. They flew …

Populations Of The Ant Aphaenogaster (Attomyrma) Treatae Forel On Abandoned Fields On The Edwin S. George Reserve, Mary Talbot

Faculty Scholarship

Not available.

Ants Of An Old-Field Community On The Edwin S. George Reserve, Livingston County, Michigan, Mary Talbot

Faculty Scholarship

Not available.

Notes On The Hypogaeic Ant, Proceratium Silaceum Roger, Clarence Hamilton Kennedy

Faculty Scholarship

Excerpt:

To complete the technical description of the species we give first a description of the male, which to date has remained undescribed.