Results 51 to 60 of about 57,666 (347)

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

Sporormiella as a tool for detecting the presence of large herbivores in the Neotropics [PDF]

, 2016
The reliability of using the abundance of Sporormiella spores as a proxy for the presence and abundance of megaherbivores was tested in southern Brazil. Mud-water interface samples from nine lakes, in which cattle-use was categorized as high, medium, or ...
ABSY ML, Alexandra M. Folcik, APTROOT A, AUGUSTINE DJ, BAKER AG, BAKKER ES, BARNOSKY AD, BORRERO LA, BURNEY DA, COLINVAUX P.A., COLINVAUX PA, COLINVAUX PA, Crystal H. McMichael, DAVIS OK, DAVIS OK, DAVIS OK, DOUGHTY CE, ETIENNE D, FAEGRI K, FROYD CA, GELMAN A, GILL JL, GILL JL, GILL JL, GILL JL, GOODLAND R, GRAYSON DK, JOHNSON CN, JOHNSON CN, JOHNSON CN, LEDRU M.-P, LEDRU ML, MACFADDEN BJ, MACPHEE RDE, Marco Felipe Raczka, Mark B. Bush, MARTIN PS, MARTIN PS, MARTIN PS, MCNAUGHTON SJ, MILLER GH, MORELLATO LPC, PARKER NE, RAPER D, RAUP D.M, RAUP DM, RIPPLE W.J, ROBINSON GS, SMITH FA, STOCKMARR J, VAN GEEL B, WEBB SD, WOOD JR   +52 more
core   +3 more sources

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 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

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

The Case of the Missing Green Iguana Predators: Reviews of Ecological Literature Should Go Beyond Google Scholar

The Bulletin of the Ecological Society of America, EarlyView.
Abstract Knowing about species interactions is essential for ecological research, conservation efforts, resource management, and maintaining healthy ecosystems, but many of these, such as reports of predation, may not always be published in easily located resources—if they are published at all.
Matthijs P. van den Burg, Hinrich Kaiser
wiley   +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 mosses of sub-Saharan Africa : 2., endemism and biodiversity [PDF]

, 1997
Based on a recent moss checklist of sub-Saharan Africa, an analysis is made of moss diversity and endemism in the area. There are over 3000 taxa, 77% of which are endemic. Figures for diversity and endemism for each country are listed, mapped and graphed,
O’Shea, Brian J.
core  

The use of chloroplast genome sequences to solve phylogenetic incongruences in Polystachya Hook (Orchidaceae Juss) [PDF]

, 2018
Background: Current evidence suggests that for more robust estimates of species tree and divergence times, several unlinked genes are required. However, most phylogenetic trees for non-model organisms are based on single sequences or just a few regions ...
Acosta, Barros, Bräutigam, Capella-Gutiérrez, Carstens, Chang, Christenhusz, Cribb, Cronn, Dressler, Dressler, Eaton, Edwards, Freudenstein, Gustafsson, Górniak, Joly, Kamneva, Katoh, Kelchner, Kelchner, Kim, Kraenzlin, Lemmon, Lemmon, Li, Li, Luo, Mamanova, Marshall, McCormack, Michel, Mort, Mytnik-Ejsmont, Parks, Peraza-Flores, Pfeil, Rambaut, Rambaut, Ramírez, Ramírez, Ronquist, Rupp, Russell, Russell, Russell, Shaw, Shaw, Shaw, Small, Smith, Sousa, Steel, Stephens, Summerhayes, Summerhayes, Särkinen, Toor, Tsitrone, Van den Berg, Weitemier   +60 more
core   +2 more sources

Long‐term trends in parasite diversity and infection levels: approaches and patterns

Biological Reviews, EarlyView.
ABSTRACT Parasites exist in every ecosystem, affecting nearly all organisms and playing a complex role in human societies. On the one hand, they contribute substantially to biodiversity and support ecosystem stability by performing essential ecological functions.
Cyril Hammoud, Juan Antonio Balbuena, Isabel Blasco‐Costa, Katie O'Dwyer, Rachel A. Paterson, Tomáš Scholz, Christian Selbach, Bernd Sures, David W. Thieltges   +8 more
wiley   +1 more source