Results 41 to 50 of about 1,536,010 (358)

Notes on the Vanhorniidae (Hymenoptera) [PDF]

open access: yes, 2017
The biology and taxonomy of Vanhornia eucnemidarum Crawford, a rare and specialized parasitoid of Eucnemidae, is reviewed.
Deyrup, Mark
core   +2 more sources

The taxonomist - an endangered race : a practical proposal for its survival [PDF]

open access: yes, 2011
Background: Taxonomy or biological systematics is the basic scientific discipline of biology, postulating hypotheses of identity and relationships, on which all other natural sciences dealing with organisms relies.
Haszprunar, Gerhard   +6 more
core   +3 more sources

Present status of water mite species (Acari, Hydrachnidia) described by Motaş, Tanasachi and Orghidan from Romania

open access: yesActa Biologica, 2018
The present paper investigates the validity of the water mite species (Acari, Hydrachnidia) described from Romania by Motaş, Tanasachi and Orghidan. The Romanian researchers from the “Emil Racoviţă” Speleology Institute, Romanian Academy, Bucharest, had ...
Mirela Cîmpean, Karina Paula Battes
doaj   +1 more source

DNA barcoding adjudicate two different morphs of Bascanichthys deraniyagalai (Anguilliformes: Ophichthidae): re-description and first record from Chilika lagoon, India

open access: yesMitochondrial DNA. Part B. Resources, 2019
Morphological characters and distribution pattern of the snake eel, Bascanichthys deraniyagalai is debatable during the past half-century. Thus, the species is re-described herewith by morphometry, vertebrae, and molecular data.
Anil Mohapatra   +6 more
doaj   +1 more source

Genetic diversity of the Pegu Rice Frog, Microhyla berdmorei (Anura: Microhylidae) based on mitochondrial DNA

open access: yesMitochondrial DNA. Part B. Resources, 2021
The Pegu Rice Frog, Microhyla berdmorei is distributed across ten Asian countries. However, the DNA barcoding information (COI gene) is restricted to only Southeast Asian countries. Here, we sampled a specimen of M.
Shantanu Kundu   +7 more
doaj   +1 more source

Synopsis of Ecuadorian Pterichis (Orchidaceae) [PDF]

open access: yesPeerJ, 2021
A taxonomic synopsis of the orchid genus Pterichis in Ecuador is presented. All national representatives of this genus are characterized and their floral segments are illustrated. Four new species and two new varieties are described.
Marta Kolanowska   +2 more
doaj   +2 more sources

HAGR: the Human Ageing Genomic Resources [PDF]

open access: yes, 2004
The Human Ageing Genomic Resources (HAGR) is a collection of online resources for studying the biology of human ageing. HAGR features two main databases: GenAge and AnAge. GenAge is a curated database of genes related to human ageing.
Costa, Joana   +2 more
core   +2 more sources

Characters evolution of Encyclia (Laeliinae-Orchidaceae) reveals a complex pattern not phylogenetically determined: insights from macro- and micromorphology

open access: yesBMC Plant Biology, 2023
Encyclia is the second-largest genus in the neotropical subtribe Laeliinae (Orchidaceae) and has more than 150 species, which are characterized by fairly consistent flower morphology.
Monika M. Lipińska   +7 more
doaj   +1 more source

Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses

open access: yesOpen Biology, 2021
Euglenozoa is a species-rich group of protists, which have extremely diverse lifestyles and a range of features that distinguish them from other eukaryotes.
A. Kostygov   +6 more
semanticscholar   +1 more source

Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology

open access: yesBotanical journal of the Linnean Society, 2023
Orchidaceae show remarkable diversity in pollination strategies, but how these strategies vary globally is not entirely clear. To identify regions and taxa that are data-rich and lend themselves to rigorous analyses or are data-poor and need attention,
J. Ackerman   +8 more
semanticscholar   +1 more source

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