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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
The Impacts Of Environment And Host Evolutionary Relationships On Lemur Microbiota, Rachel B. Burten
The Impacts Of Environment And Host Evolutionary Relationships On Lemur Microbiota, Rachel B. Burten
Doctoral Dissertations
Recent studies have shown that the mammal microbiome is modified by environmental conditions, and that reduced microbiome functionality is associated with host health issues. Microbiome data in wild and captive primate populations can therefore be used to assess their health as they encounter a variety of environments. Comparative studies of the microbiome can also inform disease ecology, conservation, and captive management strategies tailored to different primate species. Therefore, this study examines how the hair, oral, and gut microbiota of nine wild and captive lemur species are determined by host phylogenetic relationships and host environment. I found that host species identity …
Illegal Hunting On The Masoala Peninsula Of Madagascar: Its Extent, Causes, And Impact On Lemurs And Humans, Cortni Borgerson
Illegal Hunting On The Masoala Peninsula Of Madagascar: Its Extent, Causes, And Impact On Lemurs And Humans, Cortni Borgerson
Doctoral Dissertations
Two of the greatest challenges we face in the world today are: (1) reducing human poverty and malnutrition; and (2) slowing the loss of global biodiversity. Madagascar ranks nearly last in global food security, and is one of the most biodiverse countries in the world. Within Madagascar, the Masoala Peninsula is one of our greatest conservation priorities. I use one year (July 2011 – June 2012) of lemur surveys, habitat sampling, direct observations of forest mammal hunting, eleven months of daily 24-hour recall surveys, and interviews of all households in one focal village on the Masoala peninsula of Madagascar to …
Reproductive Biology Of Mouse And Dwarf Lemurs Of Eastern Madagascar, With An Emphasis On Brown Mouse Lemurs (Microcebus Rufus) At Ranomafana National Park, A Southeastern Rainforest, Marina Beatriz Blanco
Reproductive Biology Of Mouse And Dwarf Lemurs Of Eastern Madagascar, With An Emphasis On Brown Mouse Lemurs (Microcebus Rufus) At Ranomafana National Park, A Southeastern Rainforest, Marina Beatriz Blanco
Open Access Dissertations
This dissertation investigates reproductive schedules of brown mouse lemurs at Ranomafana, using intensive trapping techniques. The reproductive condition of female mouse lemurs was recorded on the basis of vaginal morphology, vaginal smears, body mass gain profiles and nipple development. Testis size was measured in males throughout the reproductive season. The timing of the first seasonal estrus was determined in frequently captured females over multiple years and it showed individual periodicities close to 365 days, consistent with endogenous regulation and entrainment by photoperiod. The timing of estrus did not correlate with female age or body mass. Males showed testicular regression during …