Results 51 to 60 of about 25,642 (265)

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

The History of the Neotropical Region [PDF]

Science, 1900
n ...
openaire   +3 more sources

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Bite force estimates and morphological correlations of jaw muscles in parrots

The Anatomical Record, EarlyView.
Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace, Arin Berger, Marcelo Ismar S. Santana, Adam Hartstone‐Rose   +3 more
wiley   +1 more source

Muriqui House: conservation management to support the recovery of the northern muriqui Brachyteles hypoxanthus in Ibitipoca, Minas Gerais, Brazil

Oryx
Ensuring the demographic and genetic viability of small populations of threatened primates requires a range of management approaches. Here we describe a novel mixed in situ and ex situ management project that was developed to restore a population of the ...
Fabiano R. de Melo, Fernanda P. Tabacow, Priscila Maria Pereira, Marcello S. Nery, Leandro S. Moreira, Érika Procópio Tostes Teixeira, Danilo Simonini-Teixeira, Mônica Valença-Montenegro, Karen B. Strier, Leandro Jerusalinsky   +9 more
doaj   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

Biological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen, Mohamed Khalil Meliane, Zachery B. Holmes, Karl E. Miller, William J. Barichivich, Emilie Dedeban, Alex Furst, Miranda Imeri, Peyton E. Niebanck, Samantha Nunn, Kailee Pearson, Nicole Rita, Brier Ryver, Dakotah Shaffer, Susan C. Walls, E. Hance Ellington   +15 more
wiley   +1 more source

Flight of the dragons: a global review of migration in Odonata

Biological Reviews, EarlyView.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund, Myles Menz, Jason W. Chapman, Alexander Hayward   +3 more
wiley   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

Integrative taxonomic revision of Capilla Grishin, 2023, subgenus of Staphylus Godman & Salvin, 1896 (Lepidoptera, Hesperiidae, Pyrginae, Carcharodini), with descriptions of four new species [PDF]

Arthropod Systematics & Phylogeny
The taxonomy of the subgenus Staphylus (Capilla) is reviewed, including redescriptions of known species, identification keys, and detailed distribution maps. The female genitalia of Staphylus (Capilla) azteca (Scudder, 1872), S.
José Ricardo Assmann Lemes, Ricardo Russo Siewert, Olaf Hermann Hendrik Mielke, Mirna Martins Casagrande, Andrew David Warren   +4 more
doaj   +3 more sources

Lepidoptera from the Pantepui. Part VII. A distinctive Lamprospilus species from the Guiana Highlands (Lepidoptera: Lycaenidae: Theclinae) [PDF]

Opuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis, 2019
Lamprospilus ayawi sp. nov. (Lycaenidae, Theclinae), whose male possesses distinctive transparent wing patches, is described from the Guiana Highlands of South America, on the basis of six males and five females from Venezuela (Auyán and Sororopán Tepuis)
Costa, Mauro, Viloria, Ángel L. , Attal, Stéphane, Benmesbah, Mohamed , Fratello, Steve, Bálint, Zsolt   +5 more
doaj   +1 more source