Results 11 to 20 of about 247,288 (294)

Environmental DNA as a Tool for the Preliminary Assessment of Vertebrate Biodiversity: A Case Study from Sicilian Freshwater Ecosystems [PDF]

open access: yesBiology
Freshwater ecosystems are rapidly losing biodiversity due to anthropogenic and environmental pressures. Considering that many species remain unknown, these systems represent an invaluable reservoir of biodiversity.
Manuela Mauro   +10 more
doaj   +2 more sources

Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos

open access: yesDiversity, 2021
This paper reviews current research on the microbial life that surrounds vertebrate embryos. Several clades are believed to develop inside sterile—or near-sterile—embryonic microhabitats, while others thrive within a veritable zoo of microbial life.
Ryan Kerney
doaj   +1 more source

A Bayesian approach to dynamic homology of morphological characters and the ancestral phenotype of jawed vertebrates

open access: yeseLife, 2020
Phylogenetic analysis of morphological data proceeds from a fixed set of primary homology statements, the character-by-taxon matrix. However, there are cases where multiple conflicting homology statements can be justified from comparative anatomy.
Benedict King, Martin Rücklin
doaj   +1 more source

Vertebrate pseudogenes [PDF]

open access: yesFEBS Letters, 2000
Pseudogenes are commonly encountered during investigation of the genomes of a wide range of life forms. This review concentrates on vertebrate, and in particular mammalian, pseudogenes and describes their origin and subsequent evolution. Consideration is also given to pseudogenes that are transcribed and to the unusual group of genes that exist at the ...
Mighell, A.J.   +3 more
openaire   +2 more sources

De novo synthesis of a sunscreen compound in vertebrates

open access: yeseLife, 2015
Ultraviolet-protective compounds, such as mycosporine-like amino acids (MAAs) and related gadusols produced by some bacteria, fungi, algae, and marine invertebrates, are critical for the survival of reef-building corals and other marine organisms exposed
Andrew R Osborn   +9 more
doaj   +1 more source

Roadkills in Northern Peninsular Malaysia

open access: yesFrontiers in Environmental Science, 2021
As Malaysia’s economy continues to grow, an ever-expanding road network is being built to support the new developments. Whilst roads increase accessibility to resources and connect human communities, they also bring with them a host of environmental ...
Tabitha C. Y. Hui   +3 more
doaj   +1 more source

Norepinephrine and octopamine: linking stress and immune function across phyla [PDF]

open access: yesInvertebrate Survival Journal, 2008
In species from three widely divergent phyla (Arthropoda, Mollusca and Chordata) tyrosine derivatives (norepinephrine or octopamine) mediate a response to acute stress.
SA Adamo
doaj   +2 more sources

Evolutionarily Established Palmitoylation-Dependent Regulatory Mechanisms of the Vertebrate Glutamatergic Synapse and Diseases Caused by Their Disruption

open access: yesFrontiers in Molecular Neuroscience, 2021
Glutamate is the major excitatory neurotransmitter in the vertebrate brain and various modifications have been established in the glutamatergic synapses.
Takashi Hayashi
doaj   +1 more source

Why Has the Ability to Regenerate Following CNS Injury Been Repeatedly Lost Over the Course of Evolution?

open access: yesFrontiers in Neuroscience, 2022
While many vertebrates can regenerate both damaged neurons and severed axons in the central nervous system (CNS) following injury, others, including all birds and mammals, have lost this ability for reasons that are still unclear.
Seth Blackshaw   +4 more
doaj   +1 more source

Wildlife vertebrate mortality in roads from Santa Fe Province, Argentina

open access: yesRevista Mexicana de Biodiversidad, 2011
Mortality of vertebrates was monitored on 2 roads (National Road 168; NR168 and Provincial Road 1; PR1) in Santa Fe Province (Argentina) from October 2007 to August 2008.
Andrés M. Attademo   +6 more
doaj   +1 more source

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