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Nematodes With Three Genders: Models For The Evolution Of Mating Systems, Parasitism And Aging
(Biology, 2013-10-23)
All living organisms reproduce and age. These are the two basic facets of life, but in many aspects poorly understood. The majority of the species are male/female. The proportion of genders in population can vary significantly ...
Phylogenetic Systematics, Population Genetics, And The Evolution Of Color Pattern Polymorphism And Coralsnake Mimicry In The Snake Genus Sonora
(Biology, 2013-03-20)
Mimicry is a widespread biological phenomenon and is simply defined as the resemblance of one organism to another for some sort of protective purpose. Specifically, Batesian mimicry occurs when a harmless species imitates ...
Phylogenetic Relationships And Feeding Behavior Of Neotropical Snail-eating Snakes (Dipsadinae, Dipsadini)
(Biology, 2013-03-20)
The snake subfamily Dipsadinae contains more than 350 ecologically diverse species in about 32 genera. Members of the tribe Dipsadini are gastropod specialists, and many possess a suite of adaptations for eating snails. ...
Phylogenetic Systematics Of Dispholidine Colubrids (Serpentes: Colubridae)
(Biology, 2013-03-20)
Dispholidine colubrids are a group of arboreal African snakes that are distributed throughout sub-Saharan Africa. Despite their vast distribution and medical significance, the systematic relationships of this group remain ...
Saponins As Agents Preventing Infection Caused By Waterborne Pathogens
(Biology, 2013-10-23)
Waterborne diseases are the leading cause of deaths globally, estimated to result in more than 3.4 million deaths and approximately 4 billion cases of diarrhea annually according to the World Health Organization (WHO). The ...
Impacts Of Anthropogenic Disturbances And Drought On Breeding Bird Abundance And Diversity In The Rolling Plains Ecoregion Of Texas
(Biology, 2013-10-22)
Bird species, especially grassland species have undergone widespread decline in arid grasslands due to anthropogenic disturbance such as different land use including cattle grazing and agriculture and addition of physical ...
Role Of The Extracytoplasmic Function Sigma Factor carQ In Oxidative Response Of Bradyrhizobium japonicum
(Biology, 2013-10-23)
Bradyrhizobium japonicum is a nitrogen-fixing bacterium that can establish a symbiotic relationship with the soybean plant. To be a successful symbiont, B. japonicum must have an effective mechanism to deal with plant ...
Use Of A Tri-axial Accelerometer, Behavioral Observation, And GPS To Monitor The Activity Of Female Asian Elephants In A Zoo
(Biology, 2013-07-22)
Wild elephants spend approximately 90% of their day actively foraging. Reduced activity in captive elephants may increase the risk of obesity and the formation of stereotypical behaviors. In order to evaluate and enhance ...
The Role Of Life History In The Toxicity Of The Toxic Golden Haptophyte Prymnesium parvum
(Biology, 2013-03-20)
Prymnesium parvum is a harmful algal species that causes widespread fish kills. It is usually motile, but non-motile stages have been observed that may represent an encysted stage. The relationship of these life history ...