Results 41 to 50 of about 13,483 (256)

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

Un Update on the diversity of cicadas (Hemiptera: Cicadidae) in the province of Jujuy (Argentine Republic)

Acta Zoológica Lilloana
The first records of Proarna inignis Distant, Dorisiana metcalfi Sanborn & Heath, Guyalna cuta (Walker), Quesada gigas (Olivier), Carineta crassicauda Torres, and Herrera umbraphila Sanborn & Heath are provided for the province of Jujuy.
Allen Sanborn, María Inés Zamar, Mario Alfredo Linares, Félix Ortiz, Freddy Burgos, César Mariano Farfán, Melisa D’occio   +6 more
doaj   +1 more source

A new report of Sanbornia juniperi Pergarde ex. Barker, 1920 (Hemiptera: Aphididae) in Neotropical region
Pulgões; Dispersão de insetos; Plantas ornamentais; Juniperus chinensis; Cupressaceae.

Semina: Ciências Agrárias, 2013
This study aimed to record new observations of Sanbornia juniperi Pergarde ex. Barker, 1920 (Hemiptera: Aphididae) in the Neotropical region associated with Juniperus chinensis L. (Cupressaceae).
Orcial Ceolin Bortolotto, Ayrs de Oliveira Menezes Júnior, Carlos Roberto Sousa-Silva   +2 more
doaj   +1 more source

The Complete Chloroplast Genome of Guadua angustifolia and Comparative Analyses of Neotropical-Paleotropical Bamboos. [PDF]

PLoS ONE, 2015
To elucidate chloroplast genome evolution within neotropical-paleotropical bamboos, we fully characterized the chloroplast genome of the woody bamboo Guadua angustifolia. This genome is 135,331 bp long and comprises of an 82,839-bp large single-copy (LSC)
Miaoli Wu, Siren Lan, Bangping Cai, Shipin Chen, Hui Chen, Shiliang Zhou   +5 more
doaj   +1 more source

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

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

New species of the Eiphosoma dentator (Fabricius, 1804) species-group (Hymenoptera, Ichneumonidae, Cremastinae) from Brazil

Brazilian Journal of Biology
A new species of Eiphosoma Cresson, 1865 (Hymenoptera, Ichneumonidae) is described based on five specimens collected in organic crops areas in Araraquara and Cravinhos municipalities, São Paulo State, Brazil. A diagnostic key to the neotropical Eiphosoma
IF. Melo, HC. Onody, AM. Penteado-Dias
doaj   +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

Biodiversity and climate change in the Neotropical region [PDF]

Biota Neotropica, 2008
The isolation of South America from Central America and Africa during the Tertiary Period left a strong imprint on the biota of the Neotropics. For almost 100 million years Neotropical flora, fauna and microorganisms evolved in completely isolation. The emergence of a continuous land bridge, 3 Ma years ago, between Central and South America is well ...
openaire   +2 more sources