Results 41 to 50 of about 1,408,285 (284)

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

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Avian Conservation and Ecology, 2021
Ecosystem anthropization is a main driver of biodiversity loss, but not all species are equally susceptible. Understanding and preventing biodiversity loss is particularly important in rapidly changing and biodiversity-rich areas like the Neotropics and ...
Ricardo A. Soto-Saravia, Carla M. Garrido-Cayul, Jorge Avaria-Llautureo, Alfonso Benítez-Mora, Cristián E. Hernández, Manuela González-Suárez   +5 more
doaj  

Biogeographic and diversification patterns of Neotropical Troidini butterflies (Papilionidae) support a museum model of diversity dynamics for Amazonia

BMC Evolutionary Biology, 2012
Background The temporal and geographical diversification of Neotropical insects remains poorly understood because of the complex changes in geological and climatic conditions that occurred during the Cenozoic.
Condamine Fabien L, Silva-Brandão Karina L, Kergoat Gael J, Sperling Felix AH   +3 more
doaj   +1 more source

Global effects of land use on local terrestrial biodiversity [PDF]

, 2015
Human activities, especially conversion and degradation of habitats, are causing global biodiversity declines. How local ecological assemblages are responding is less clear--a concern given their importance for many ecosystem functions and services.
Ewers, R., Echeverria-Londono, Susy, Ingram, DJ, Alhusseini, Tamera, Sandra Díaz, Bennett, DJ, Newbold, Tim, Newbold, T., David Laginha Pinto Correia (16214276), Ben Collen, Palma, A., Harrison, ML, Bennett, D., Alexandra Robinson, Day, Julie, Drew W Purves (2923404), Senior, Rebecca A., Martin, CD, Yuval Itescu (3193824), White, H., White, H.J., Harrison, M., Martin, C., Victoria Kemp, White, HJ, Laginha Pinto Correia, David, Shai Meiri, Lawrence N Hudson (16191344), Callum D. Martin, Adriana De Palma (9727840), Morgan Garon (16214264), Tamera Alhusseini (16214267), Anat Feldman, Garon, M., Kirkpatrick, L, Kattge, J., Simpson, J, Lawrence N. Hudson, Maria Novosolov (3321609), Itescu, Y, Samantha L. L. Hill, Feldman, A., Yuan Pan, De Palma, A, Weiher, Evan, Jörn P W Scharlemann (16038464), Collen, Ben, Börger, Luca, Senior, R.A., Weiher, E., Alhusseini, T, Yuval Itescu, White, Hannah J., Purves, DW, Day, J., Bennett, Dominic J., Hill, S., Feldman, A, David Laginha Pinto Correia, Purves, Drew W., Correia, D., Kleyer, Michael, Scharlemann, Jörn P. W., Melanie J. Edgar, Morgan Garon, Edgar, Melanie J., Correia, DLP, Tuck, Sean L., Robinson, A, Jens Kattge (159419), Kleyer, M, Choimes, A, Martin, Callum D., Correia, DL, Robinson, Alexandra, Evan Weiher, Feldman, Anat, Hill, SL, Jake Simpson (10349554), Shai Meiri (394933), Igor Lysenko, Phillips, H.R.P., Sara Contu (781079), Simpson, Jake, Helen R. P. Phillips, Purvis, Andy, Phillips, HRP, Garon, M, Purves, D.W., Contu, Sara, Lysenko, Igor, Helen R P Phillips (16191347), Scharlemann, J.P.W., Daniel J. Ingram, Tuck, S.L., Sean L Tuck (16202447), Tuck, S., Pan, Y., Garon, Morgan, Julie Day (694088), Tamera Alhusseini, Hudson, LN, Contu, S, Correia, D.L.P., Susy Echeverria-Londoño (16214258), Ewers, Robert M., Michelle L K Harrison (16191356), Börger, L, Argyrios Choimes (16214255), Tuck, SL, Harrison, M.L.K., Itescu, Yuval, Kirkpatrick, L., Ewers, R.M., Lucinda Kirkpatrick, Victoria Kemp (16214273), Sara Contu, Kirkpatrick, Lucinda, Purvis, A., Börger, L., Senior, R., Sandra Díaz (20315), Kemp, V., Yuan Pan (309187), Samantha L L Hill (16191350), Callum D Martin (16214279), Senior, RA, Maria Novosolov, Sean L. Tuck, Melanie J Edgar (16214261), Andy Purvis (70687), Georgina M. Mace, Hannah J White (16214282), Pan, Yuan, Harrison, MLK, Novosolov, Maria, De Palma, A., Luca Börger (2908595), Scharlemann, JP, Rebecca A Senior (7107386), Harrison, Michelle L. K., MacE, G.M., Collen, B., Michael Kleyer (730414), Echeverria-Londono, S., Michelle L. K. Harrison, Michael Kleyer, Choimes, Argyrios, Choimes, A., Jens Kattge, Bennett, D.J., Novosolov, M., Contu, S., Edgar, M.J., Hudson, L.N., Jörn P. W. Scharlemann, Meiri, S., Ben Collen (25051), Hudson, L., Igor Lysenko (3341216), Purvis, A, Mace, Georgina M., Scharlemann, J., Lucinda Kirkpatrick (5819210), De Palma, Adriana, Alhusseini, T., Kattge, J, Tim Newbold (139316), Diaz, Sandra Myrna, Newbold, T, Meiri, S, Anat Feldman (3246396), Julie Day, Phillips, H., Hill, Samantha L. L., Susy Echeverria-Londoño, Argyrios Choimes, Purves, D., Simpson, J., Kleyer, M., Evan Weiher (2916206), Adriana De Palma, Drew W. Purves, Edgar, MJ, Boerger, L, Kemp, V, Robert M. Ewers, Phillips, HR, Daniel John Ingram (16214270), Lysenko, I, Robinson, A., Dominic J. Bennett, Hill, S.L.L., Novosolov, M, Kemp, Victoria, Hudson, L, Alexandra Robinson (4241548), Collen, B, Day, J, Echeverria-Londoño, S, Pinto Correia, David Laginha, Correia, David Laginha Pinto, Dominic J Bennett (16214252), Edgar, M., Pan, Y, Lysenko, I., Martin, C.D., Kattge, Jens, Weiher, E, Hannah J. White, Mace, G., Hill, SLL, Ingram, Daniel J., Diaz, S., Ingram, D.J., Díaz, S, Rebecca A. Senior, Ewers, RM, Ingram, D., Andy Purvis, Hudson, Lawrence N., Robert M Ewers (5599196), Georgina M Mace (8336769), Scharlemann, JPW, Tim Newbold, Diaz, Sandra, Meiri, Shai, Jake Simpson, Phillips, Helen R. P., Mace, GM, Luca Borger, Itescu, Y.   +231 more
core   +1 more source

The Central Role of Taxonomy in the Study of Neotropical Biodiversity

Annals of the Missouri Botanical Garden, 2020
The Neotropics are the most species-rich area of the planet. Understanding the origin and maintenance of this diversity is an important goal of ecology and evolutionary biology. Success in this endeavor relies heavily on the past work of taxonomists who have collected specimens and produced the floras and monographs that constitute the foundation for ...
Laura P. Lagomarsino, Laura A. Frost
openaire   +2 more sources

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia, Sandriely F. Marcondes, Mayara S. Siqueira, Taynara R. F. Leão, Robson A. Rodrigues, Karine N. N. Farias, André L. N. Silva, Karin Virgínia Kuibida, Lilian Franco‐Belussi, Carlos E. Fernandes   +9 more
wiley   +1 more source

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

Environmental Pollution and Biological Invasions Threaten Native Freshwater Infaunal Bivalves in the Guandu River Basin, Southeast Brazil

Limnological Review
Freshwater bivalves play essential ecological roles in ecosystems, but they are among the most threatened fauna worldwide. Despite receiving industrial and domestic wastes, the Guandu River is the main source of drinking water for more than nine million ...
Nathália Rodrigues, Igor C. Miyahira, Antonio J. S. Rodrigues, Luciano N. Santos, Raquel A. F. Neves   +4 more
doaj   +1 more source

USING MORPHOMETRICS TO DETERMINE SEX IN A NEOTROPICAL PASSERINE: THE GRAY‐BREASTED WOOD‐WREN (HENICORHINA LEUCOPHRYS) [PDF]

, 2017
∙ Sexual size dimorphism is a widespread pattern among birds, but has remained untested for many Neotropical species. Here we examine sexual differences in a relatively common passerine that is found from Mexico to Bolivia, the Gray‐breasted Wood‐Wren ...
Pérez-Emán, Jorge L, Machado-Stredel, Fernando   +1 more
core   +2 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