Biological Sciences: Recent submissions
Now showing items 41-60 of 126
An Overlooked Hotspot? Rapid Biodiversity Assessment Reveals a Region of Exceptional Herpetofaunal Richness in the Southeastern United States
(2022-07-29)
We conducted a competitive bioblitz survey in four Georgia counties to raise awareness of a unique and species rich herpetofauna in the Pine Mountain/ Fall Line Sandhills Region of Georgia, and compared documented species ...
Visitors to Southeastern Hawkmoth Flowers
(2022-07-29)
- Despite global concern for the status of animal pollinators, studies on
pollination systems in the southeastern United States are disproportionately low
compared to the diversity of this region. For example, sphingophilous, ...
Biomechanical factors influencing successful self-righting in the pleurodire turtle Emydura subglobosa
(2022-07-29)
Self-righting performance is a key ability for most terrestrial animals, and has been used as a metric of fitness, exhaustion and thermal limits in a variety of taxa. However, there is little understanding of the underlying ...
The Vitamin A-Redox Hypothesis: A Biochemical Basis for Honest Signaling via Carotenoid Pigmentation
(2022-07-29)
Trade-offs in resource allocation have been widely stated as the means by which the honesty of ornamental traits is maintained, but an alternative to this resource trade-off hypothesis is that production of ornamentation ...
An in vivo test of the biologically relevant roles of carotenoids as antioxidants in animals
(2022-03-13)
Carotenoids are well known for their contribution to the vibrant coloration of many animals and have been hypothesized to be important antioxidants. Surprisingly few examples of carotenoids acting as biologically relevant ...
Thermal spikes from the urban heat island increase mortality and alter physiology of lizard embryos
(2022-03-13)
Effects of global change (i.e. urbanization, climate change) on adult organisms are readily used to predict the persistence of populations. However, effects on embryo survival and patterns of development are less studied, ...
High activity before breeding improves reproductive performance by enhancing mitochondrial function and biogenesis
(2022-03-13)
Understanding of physiological responses of organisms is typically based on data collected during an isolated event. Although many fundamental insights have been gained from these studies, evaluating the response to a ...
A Call to Develop Course-Based Undergraduate Research Experiences (CUREs) for Nonmajors Courses
(2022-03-11)
Course-based undergraduate research experiences (CUREs) for non-science majors (non-majors) are potentially distinct from CUREs for developing scientists in their goals, learning objectives, and assessment strategies. While ...
Discovery and Broad Relevance May Be Insignificant Components of Course-Based Undergraduate Research Experiences [CUREs] for Non-Biology Majors
(2022-03-11)
Course-based undergraduate research experiences (CUREs) are a type of laboratory learning environment associated with a science course, in which undergraduates participate in novel research. According to Auchincloss et al. ...
Development of endocytosis, degradative activity, and antigen processing capacity during GM-CSF driven differentiation of murine bone marrow
(2022-03-11)
Dendritic cells (DC) are sentinels of the immune system, alerting and enlisting T cells to clear pathogenic threats. As such, numerous studies have demonstrated their effective uptake and proteolytic activities coupled ...
Macrophage ABCA1 reduces MyD88-dependent Toll-like receptor trafficking to lipid rafts by reduction of lipid raft cholesterol
(2022-03-11)
We previously showed that macrophages from macrophage-specifi c ATP-binding cassette transporter A1 (ABCA1) knockout (Abca1(-M/-M)) mice had an enhanced proinflammatory response to the Toll-like receptor (TLR) 4 agonist, ...
Seasonal Shifts in Reproduction Depend on Prey Availability for an Income Breeder
(2022-03-04)
The evolution of reproductive strategies depends on local environmental conditions. When environments are seasonal, selection favors individuals that align changes in key reproductive traits with seasonal shifts in habitat ...
Sex-Specific Effects of Incubation Temperature on Embryonic Development of Zebra Finch (Taeniopygia guttata) Embryos
(2022-03-04)
In oviparous species, the embryonic environmentparticularly temperaturecan alter phenotype and survival of an individual by affecting its size as well as its metabolic rate. Previous studies have shown that incubation ...
Hemichordate Molecular Phylogeny Reveals a Novel Cold-Water Clade of Harrimaniid Acorn Worms
(2022-03-04)
Hemichordates are instrumental to understanding early deuterostome and chordate evolution, yet diversity and relationships within the group have been understudied. Recently, there has been renewed interest in hemichordate ...
Multiple Colonizations Lead to Cryptic Biodiversity in an Island Ecosystem: Comparative Phylogeography of Anchialine Shrimp Species in the Ryukyu Archipelago, Japan
(2022-03-04)
Archipelagos of the Indo-West Pacific are considered to be among the richest in the world in biodiversity,
and phylogeographic studies generally support either the
center of origin or the center of accumulation hypothesis ...
Host preference and habitat segregation among Red Sea anemonefish: effects of sea anemone traits and fish life stages
(2022-03-04)
Competition drives habitat segregation between adults and juveniles in many types of organisms, but little is known about this process in anemonefish that compete for host sea anemones which differ in habitat quality. We ...
Life History Aspects of Exyra semicrocea (Pitcher Plant Moth) (Lepidoptera: Noctuidae)
(2022-03-03)
With as little as 3% of southeastern Coastal Plain pitcher plant bogs remaining, it is important to understand the life-history aspects of the endemic organisms that
comprise this community. In this study, we elucidate ...
Southern Two-Lined Salamander Diets in Urban and Forested Streams in Western Georgia
(2022-03-03)
Streams are heavily affected by watershed urbanization as increased stormwater runoff changes their physical and chemical composition. Benthic macroinvertebrate species richness has been consistently shown to decline with ...
Propagule size and sex ratio influence colonisation dynamics after introduction of a non-native lizard
(2022-01-28)
1. The composition of founding populations plays an important role in colonisation dynamics and can influence population growth during early stages of biological invasion. Specifically, founding populations with small ...