Results 61 to 70 of about 3,194,829 (296)

The presence of predators constrains larval development process by influencing critical developmental windows in the endangered Chinhai spiny newt

open access: yesEcology and Evolution
Predators significantly impact the development process and subsequently influence the metamorphic decisions of amphibian larvae. Larvae often exhibit induced growth and metamorphic plasticity in response to the presence of predators.
Xihong Zhu   +4 more
doaj   +1 more source

Of Frogs & Rhetoric: The Atrazine Wars [PDF]

open access: yes, 2015
In a scientific dispute over the effects of atrazine on amphibians, chemical industry–funded and publically funded scientists present stunningly contrasting constructions of atrazine\u27s environmental concentrations, persistence, and potential to harm ...
Reeves, Carol
core   +2 more sources

Modern competency‐based teaching of human sexual development

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Embryology is an integral part of anatomy and a key subject in basic medical education. The development of the sexual tract, which is closely associated with the formation of the urinary tract and the organs of continence, is particularly complex and relevant for many medical disciplines.
Elisabeth Eppler   +2 more
wiley   +1 more source

The use of chemical and biological settlement cues in enhancing the larval settlement of abalone (Haliotis midae): Implications for hatcheries and ocean ranching

open access: yesJournal of the World Aquaculture Society, 2023
Reducing the time to settlement and metamorphosis of abalone larvae is critical for ensuring that abalone larvae settle within the seeding site for ocean ranching or to increase production in hatcheries.
Ziyanda B. Mzozo   +2 more
doaj   +1 more source

The evolution of insect metamorphosis: a developmental and endocrine view

open access: yesPhilosophical Transactions of the Royal Society of London. Biological Sciences, 2019
Developmental, genetic and endocrine data from diverse taxa provide insight into the evolution of insect metamorphosis. We equate the larva–pupa–adult of the Holometabola to the pronymph–nymph–adult of hemimetabolous insects.
J. Truman, L. Riddiford
semanticscholar   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

Molecular Mechanisms of Transcription Activation by Juvenile Hormone: A Critical Role for bHLH-PAS and Nuclear Receptor Proteins

open access: yesInsects, 2012
Juvenile hormone (JH) is responsible for controlling many biological processes. In several insect species JH has been implicated as a key regulator of developmental timing, preventing the premature onset of metamorphosis during larval growth periods ...
Edward B. Dubrovsky, Travis J. Bernardo
doaj   +1 more source

Developmental Expression of \u3cem\u3eDrop-Dead\u3c/em\u3e is Required for Early Adult Survival and Normal Body Mass in \u3cem\u3eDrosophila melanogaster\u3c/em\u3e [PDF]

open access: yes, 2012
In Drosophila melanogaster, mutations in the gene drop-dead (drd) result in early adult lethality, with flies dying within 2 weeks of eclosion. Additional phenotypes include neurodegeneration, tracheal defects, starvation, reduced body mass, and female ...
Blumenthal, Edward M   +1 more
core   +1 more source

Observations of the Habits of \u3ci\u3eLygaeus Kalmii Angustomarginatus\u3c/i\u3e (Hemiptera: Lygaeidae) in Southern Michigan [PDF]

open access: yes, 2017
Lygaeus kalmii Stal (Hemiptera: Lygaeidae) is an insect found throughout the eastern United States and Canada. There is extensive taxonomic literature on this insect (Stil, 1874; Townsend, 1887; Parshey, 1919, 1923; Slater and Knopf, 1969), but very ...
Hunt, Linda-Margaret
core   +2 more sources

The evolution of larvae in temnospondyls and the stepwise origin of amphibian metamorphosis

open access: yesBiological Reviews of The Cambridge Philosophical Society
The question of what the ancient life cycle of tetrapods was like forms a key component in understanding the origin of land vertebrates. The existence of distinct larval forms, as exemplified by many lissamphibians, and their transformation into adults ...
R. Schoch, F. Witzmann
semanticscholar   +1 more source

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