A5002157078- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Genetic diversity and population structure
- Amphibian and Reptile Biology
- Fish biology, ecology, and behavior
- Wildlife Ecology and Conservation
- Human-Animal Interaction Studies
- Fish Biology and Ecology Studies
- Marine animal studies overview
- Ichthyology and Marine Biology
- Study of Mite Species
- Primate Behavior and Ecology
- Aquatic Invertebrate Ecology and Behavior
- Collembola Taxonomy and Ecology Studies
- Plant and animal studies
- Physiological and biochemical adaptations
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Genetic and phenotypic traits in livestock
Fanjingshan National Nature Reserve
2025
Tianma Microelectronics (China)
2025
University of Illinois Urbana-Champaign
2013-2018
Goodwin College
2013
Indiana University Bloomington
2006
Health First
1982
Determining which reproductive isolating barriers arise first between geographically isolated lineages is critical to understanding allopatric speciation. We examined behavioral isolation among four recently diverged species in the orangethroat darter clade (Etheostoma: Ceasia). also each Ceasia and sympatric rainbow Etheostoma caeruleum. asked (1) present species, how does this compare with E. caeruleum, (2) male color distance and/or genetic predict (3) what are relative contributions of...
Establishing and managing nature reserves to mitigate wildlife habitat loss fragmentation is challenging, particularly in the face of increasing human activity. To understand how coexists environments affected by anthropogenic disturbances, we conducted a 19-month survey examining Reeves’s pheasant (Syrmaticus reevesii) Koklass (Pucrasia macrolopha) Anhui Tianma National Nature Reserve, China. Previous studies large terrestrial birds focused primarily on livestock impacts, with less...
Abstract Elaborate, sexually dimorphic traits are widely thought to evolve under sexual selection through female preference, male–male competition, or both. The orangethroat darter ( Etheostoma spectabile ) is a dichromatic fish in which females exhibit no preferences for male size coloration. We tested whether these affect individual reproductive success E. when multiple males allowed freely compete female. quality and quantity of coloration were associated with greater maintaining access...
Behavioral isolation is thought to arise early in speciation due differential sexual and/or natural selection favoring different preferences and traits lineages. Instead, behavioral can reinforcement that prevent maladaptive hybridization. In darters, female preference for male coloration has been hypothesized drive speciation, because evolves before F1 inviability. However, as with many long-lived organisms, the fitness of second-generation hybrids not assessed raising animals adulthood...
Robust reproductive isolation was found between the rainbow darter Etheostoma caeruleum and orangethroat spectabile, as more offspring were produced when conspecific males females crossed compared with heterospecific crosses. Furthermore, fewer eggs resulted from crosses involving sympatric E. spectabile than those using allopatric females, while a similar pattern not observed in females. These results suggest that reinforcement, i.e. selection for pre-zygotic barriers driven by reduced...
Sexually dimorphic coloration has been widely suggested to play a role in sexual selection and speciation. Animal colors can originate from several different biochemical pathways, which may underlie patterns of diversification. Darters the speciose genus Etheostoma exhibit substantial diversity male breeding coloration. We used digital photography image software comprehensively quantify Rainbow Darter (Etheostoma caeruleum) Orangethroat (E. spectabile). Color traits differed across species,...
SUMMARY Electrocommunication signals of electric fish vary across species, sexes and individuals. The diversity these the relative simplicity neural circuits controlling them make a model well-suited for studying mechanisms, evolution sexual differentiation behavior. In most wave-type gymnotiform knifefishes, organ discharge (EOD)frequency EOD modulations known as chirps are sexually dimorphic. speciose family, Apteronotidae, frequency is higher in males than females some but lower others....
How animals visually perceive the environment is key to understanding important ecological behaviors, such as predation, foraging, and mating. This study focuses on visual system properties perception of color in largemouth bass Micropterus salmoides. (1) documents number spectral sensitivity photoreceptors, (2) uses these parameters model perception, (3) tests using a behavioral assay. Bass possess single cone cells maximally sensitive at 535 nm, twin 614 rod 528 nm. A simple predicted that...
Lake and stream habitats pose a variety of challenges to fishes due differences in variables such as water velocity, habitat structure, prey community, predator community. These can cause divergent selection on body size and/or shape. Here, we measured sex, age, length, eight different morphological traits the blackstripe topminnow, Fundulus notatus, from 19 lake populations across four river drainages central Illinois. Our goal was determine whether shape differed consistently between...
Egg viability in the rainbow darter Etheostoma caeruleum , a fish apparently lacking female mate choice, was found to decline rapidly after ovulation. It observed that majority of female's clutch may fail hatch if she is prevented from mating for as little 6 h. These data suggest exercising preferences be selectively disfavoured E. due high cost delaying mating.
Abstract Behavioral isolation is thought to arise early in speciation due differential sexual and/or natural selection favoring different preferences and traits lineages. Alternatively, behavioral can reinforcement that prevent maladaptive hybridization. In darters, female preference for male coloration has been hypothesized drive speciation, because evolves before F1 inviability. However, as with many long-lived organisms, the fitness of second generation hybrids not assessed raising...
Abstract Egg viability in the rainbow darter Etheostoma caeruleum , a fish apparently lacking female mate choice, was found to decline rapidly after ovulation. We observed that majority of female’s clutch may fail hatch if she is prevented from mating for as little six hours. These data suggest exercising preferences be selectively disfavoured E. due high cost delaying mating.