Results 61 to 70 of about 15,672 (301)

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

A first approach to chalcid wasps (Hymenoptera, Chalcididae) of the entomological museum UNAB with new records for Colombia

Agronomía Colombiana, 2019
The entomological museum of Universidad Nacional, Faculty of Agricultural Sciences, Bogota, (UNAB) Colombia, conserves several arthropod collections. These collections are considered of great interest to several agricultural and silvicultural production ...
Alba Lucia Pérez-Benavides, Francisco Serna   +1 more
doaj   +1 more source

Results of a botanical expedition to mount Roraima, Guyana. I. Bryophytes [PDF]

, 2013
A bryological inventory of the Upper Mazaruni District, Guyana (former British Guiana) yielded almost three hundred species, including 2 genera and 11 species new to science and 130 species new to the Guianas.
Florschütz-de Waard, J., Gradstein, Stephan Robbert   +1 more
core  

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

Tiny Patch, Big Value: A Small Dry Forest Patch Supports Wildlife Conservation in Guanacaste, Costa Rica

Ecology and Evolution
Tropical dry forests are among the most threatened tropical ecosystems due to ongoing agricultural expansion and development. Despite this, small forest patches persist within fragmented landscapes, though their conservation value remains poorly ...
Trevor L. Proctor, Faridah Fatungase, Jesus A. Barquero Leiva, Francisco Javier, Chelsea E. Durr, Frank V. Paladino   +5 more
doaj   +1 more source

Expanded description of Dolops bidentata (Bouvier, 1899) (Branchiura: Argulidae) based on specimens collected on Pygocentrus nattereri Kner, 1858 (Characiformes) from Poconé Wetland, MT, Brazil Descrição expandida de Dolops bidentata (Bouvier, 1899) (Branchiura: Argulidae) baseada em espécimes parasitos de Pygocentrus nattereri Kner, 1858 (Characiformes) do Pantanal de Poconé, MT, Brasil

Brazilian Journal of Biology, 2011
The current information on the branchiuran Dolops bidentata, a species described more one hundred years ago, is valid but incomplete; hence, an expanded description is given herein.
AT. Silva-Souza, VD. Abdallah, RK. de Azevedo, FA. da Silva, JL. Luque   +4 more
doaj   +1 more source

The History of the Neotropical Region [PDF]

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

Taxon cycles in Neotropical mangroves

Plants, 2022
Abstract The concept of taxon cycle involves successive range expansions and contractions over time through which a species can indefinitely maintain its core distribution. Otherwise, it becomes extinct. Taxon cycles have been defined mostly for tropical island faunas, examples from continental areas are scarce and ...
openaire   +4 more sources

Origin and evolution of Chrysobalanaceae: insights into the evolution of plants in the Neotropics

, 2013
Some plant families show a striking imbalance in species diversity between the Neotropics and the Palaeotropics. The woody plant family Chrysobalanaceae is a typical example of this pattern, with 80% of the 531 species in the Neotropics. In order to test
Chamagne, Juliette, Dexter, Kyle G, Chave, Jérôme, Bardon, Léa, Prance, Ghillean T, Sothers, Cynthia A   +5 more
core   +1 more source

EpIG-DB:A database of vascular epiphyte assemblages in the Neotropics [PDF]

, 2020
Vascular epiphytes are a diverse and conspicuous component of biodiversity in tropical and subtropical forests. Yet, the patterns and drivers of epiphyte assemblages are poorly studied in comparison with soil-rooted plants.
Quaresma, A.C., Nardy, C., Fernández, M., Hietz, P., Soto Medina, E., Brancalion, P.H.S., Zuleta, D., Pereira, A.C.A., Basílio, G.A., Martínez-Meléndez, N., Machado, G.M.O., Werneck, M.S., Taylor, A., Batke, S.P., de la Rosa-Manzano, E., Mendes, A.F., Barbosa, D.E.F., Mortara, S.R., Einzmann, H.J.R., Rodríguez Quiel, C., Jiménez-Alfaro, B., de Paula Oliveira, R., Acuña-Tarazona, M., Seehaber Alvim, F., Kessler, M., Benavides, A.M., Furtado, S.G., Kreft, H., Werner, F.A., Pillaca, L., Irume, M.V., Carvalho, L.P., Mendieta-Leiva, G., Ramos, F.N., Zartman, C.E., Guzmán-Jacob, V., de Gasper, A.L., Krömer, T., Vega, M.S., Elias, J.P.C., de Macêdo Mello, R., Wagner, K., Zotz, G., Blum, C.T., Wolf, J.H.D., S. Martins, P.L.S., Boelter, C.R., Menini Neto, L., Jiménez-López, D.A., Carmona, M.J.   +49 more
core   +1 more source