Results 61 to 70 of about 187,490 (264)

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Comparative analysis of cytoarchitectonic and neurochemical aspects of the globus pallidus in the rock cavy (Kerodon rupestris) and the common marmoset (Callithrix jacchus)

The Anatomical Record, EarlyView.
Abstract The globus pallidus (GP), a subcortical structure within the basal ganglia, plays a crucial role in modulating cortico‐subcortical circuits related to motor control and associative/limbic functions. However, the cytoarchitectonic and neurochemical organization of this structure remains poorly characterized in naturally existing wild‐type ...
Lavínnya Yáskara de Aquino Matoso, Yasmin Pinto Fernandes Albuquerque, Karina Maia Paiva, Rodrigo Freire Oliveira, Nelyane Nayara Martins de Santana, Expedito Silva do Nascimento‐Júnior, Rovena Clara G. J. Engelberth, Jeferson de Souza Cavalcante, Adhil Bhagwandin, Paulo Leonardo Araújo de Góis Morais, José Rodolfo Lopes de Paiva Cavalcanti   +10 more
wiley   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

More endemic birds occur in regions with stable climate, more plant species and high altitudinal range in China

Avian Research, 2020
Background Geographical distribution of endemic species and its multiple scale drivers are an important topic in biodiversity conservation, because these species are especially vulnerable to climate change and habitat degradation, and therefore have high
Gang Feng, Xiongwei Huang, Lingfeng Mao, Na Wang, Xueting Yang, Yanping Wang   +5 more
doaj   +1 more source

Body mass and sex estimation from lower carnassial tooth morphometry in the endangered Iberian wolf (Canis lupus signatus): An ecomorphological analysis of sexual size dimorphism

The Anatomical Record, EarlyView.
Abstract The Iberian wolf (Canis lupus signatus) is an endangered subspecies characterized by highly fragmented populations and increasing human–carnivore conflict across the Iberian Peninsula. Although body mass strongly influences predator–prey dynamics and ecological performance, quantitative assessments of sexual size dimorphism (SSD) and body mass
Leonardo Cotts, Eduardo Rossener, Ricardo Moratelli, Maria da Luz Mathias, Oscar Rocha‐Barbosa   +4 more
wiley   +1 more source

Distribution and characteristic habitat of Convolvulus persicus L. in South-East Romania: threats and protection solutions

Studia Universitatis Babeș-Bolyai. Biologia, 2020
Convolvulus persicus is a critically endangered species, endemic to the embryonic shifting dunes of Caspian Sea and Black Sea. The distribution of this species in Romania includes also the sand dunes on the seashores of Sfântu Gheorghe and Sulina.
Valentin Adrian KISS, Paul-Marian SZATMARI   +1 more
doaj   +1 more source

Co‐Infection of Brucella canis and Brucella melitensis in a Domestic Dog With Zoonotic Transmission to Human, China

Animal Research and One Health, EarlyView.
Source attribution figure for human and dogs Brucella canis infections. ABSTRACT We report a rare occurrence of genetic material from both Brucella canis and B. melitensis detected in a domesticated dog from Jiangsu Province, China. The detection was confirmed through serological assays, quantitative PCR (qPCR), metagenomic and genomic sequencing ...
Shengxin Ge, Jian Xu, Qingchun Shen, Jiabo Ding, Xiaowen Yang   +4 more
wiley   +1 more source

Epidemiological Survey and Genomic Insights Into Ostreid Herpesvirus 1 Transmission in the Blood Clam Anadara broughtonii in China (2019–2025)

Animal Research and One Health, EarlyView.
Seven‐year surveillance reveals a cold‐adapted OsHV‐1 lineage in blood clams, with disease onset at 13°C—3–5°C lower than in oysters—and identifies asymptomatic carriers and facility effluent as key transmission routes. ABSTRACT Ostreid herpesvirus 1 (OsHV‐1) poses a major threat to bivalve aquaculture, but its impact on blood clams (Anadara ...
Xiang Zhang, Bowen Huang, Tao Yu, Jingli Wang, Maole Wei, Huigang Kang, Chongming Wang, Changming Bai   +7 more
wiley   +1 more source

Floral traits of mammal‐pollinated Mucuna macrocarpa (Fabaceae): Implications for generalist‐like pollination systems

Ecology and Evolution, 2018
Floral traits are adapted by plants to attract pollinators. Some of those plants that have different pollinators in different regions adapt to each pollinator in each region to maximize their pollination success.
Shun Kobayashi, Tetsuo Denda, Chi‐Cheng Liao, Yu‐Hsiu Lin, Shu‐Hui Wu, Masako Izawa   +5 more
doaj   +1 more source

Endemic and invasive species of Lake Matano and allowable suspended solid load to sustain high species endemism

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Lake Matano, an ancient tectonic, is characterized by its high degree of aquatic fauna endemism and richness dwelling the littoral bed. Two main issues threatening the sustainability of those species are 1) high rate of land conversion and 2) the occurrence of invasive fish species.
null Sulastri, E Harsono, I Ridwansyah, R Dina, I Melati   +4 more
openaire   +1 more source