Results 61 to 70 of about 215,760 (285)

The cranial, mandibular, and hyoid anatomy of softshell turtles (Trionychidae): A revised character list for phylogenetic analysis

open access: yesThe Anatomical Record, EarlyView.
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley   +1 more source

Accrediting Neurology Fellowships Accelerates Subspecialization [PDF]

open access: yesFrontiers in Neurology, 2013
In the 2011 American Academy of Neurology Residents Survey 86% of American neurology residents planned to complete a fellowship after their residency, up from estimates of 78% in 2008 and 74% in 1996 (1–3). There has been an increase in the types of subspecialty fellowship programs and, importantly, the available certifications.
Hodgson, Trent S.   +3 more
openaire   +3 more sources

Establishment of Interspecies Somatic Cell Nuclear Transfer and Transgene‐Free Inducible Pluripotent Stem Cells for Versatile Conservation of the Germplasm Resource of Wild Boar

open access: yesAnimal Research and One Health, EarlyView.
Conserving genetic material and even increasing genetic diversity is critical. To conduct the conservation of wild boar germplasm resources, we have successfully obtained healthy cloned wild boars for the first time using interspecies somatic cell nuclear transfer and established transgene‐free iPSCs that can be used to conduct iterative rounds of gene
Chen Gao   +11 more
wiley   +1 more source

CONTRIBUTIONS TO DISTRIBUTION OF TURKISH FRESHWATER ISOPODS (CRUSTACEA: ISOPODA)

open access: yesTrakya University Journal of Natural Sciences, 2016
This study was carried out to contribute to distribution of freshwater isopods in Marmara Region (including Gökçeada and Bozcaada islands) of Turkey. For this aim, it was evaluated the material which was sampled during the years 1991, and 1998-2002 in a ...
Belgin Çamur-Elipek, Nurcan Özkan
doaj   +2 more sources

Geographic variation and evolutionary history of Dipodomys nitratoides (Rodentia: Heteromyidae), a species in severe decline [PDF]

open access: yes, 2019
We examined geographic patterns of diversification in the highly impacted San Joaquin kangaroo rat, Dipodomys nitratoides, throughout its range in the San Joaquin Valley and adjacent basins in central California.
Cypher, BL   +4 more
core  

Conservation genetics of the giant otter (Pteronura brasiliensis (Zimmerman, 1780)) (Carnivora, Mustelidae)

open access: yesBrazilian Journal of Biology
The giant otter (Pteronura brasiliensis) is an aquatic mammal of the Mustelidae family, endemic to South America. Its original distribution corresponds to the region from the Guyanas to Central-North Argentina, but it is extinct or on the verge of ...
DM. Garcia   +3 more
doaj   +1 more source

Studies on subspecies changes of rice in the Neolithic age by analysis of morphological characteristics of plant opal from Nanzhuangqiao site

open access: yes浙江大学学报. 农业与生命科学版, 2002
Analysis of plant opal has been proposed as an effective method to origin and evolution of crops. To understand subspecies and its changes of rice cultivated at the Neolithic age with changes of times, 16 soil samples, 8 earthenware fragments and burned ...
ZHENG Yun-fei   +4 more
doaj   +1 more source

Dispersibility of the Pale Grass Blue Butterfly Zizeeria maha (Lepidoptera: Lycaenidae) Revealed by One-Individual Tracking in the Field: Quantitative Comparisons between Subspecies and between Sexes

open access: yesInsects, 2020
The pale grass blue butterfly Zizeeria maha (Lepidoptera: Lycaenidae) has been used as an environmental indicator species for radioactive pollution after the Fukushima nuclear accident.
Atsuki Hiyama, Joji M. Otaki
doaj   +1 more source

Phylogenomics and Biogeography of the Eastern Asian–Eastern North American Disjunct Genus Hylodesmum (Fabaceae)

open access: yesBiological Diversity, EarlyView.
Integrating data from plastid genomes, nrDNA, and 353 low‐copy nuclear genes, this study establishes a robust phylogenetic framework for Hylodesmum. This framework supports a taxonomic revision recognizing 18 species and reveals a complex pattern of bidirectional EA–ENA dispersal, with mammals as a plausible dispersal agent. ABSTRACT Phylogenomics with
Zhuqiu Song   +5 more
wiley   +1 more source

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

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