Results 61 to 70 of about 16,070 (207)

A century of theories of balancing selection

Biological Reviews, Volume 101, Issue 2, Page 804-825, April 2026.
ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka, Martyna K. Zwoinska, Debora Goedert, Hanna Kokko, Xiang‐Yi Li Richter, Iain R. Moodie, Sofie Nilén, Colin Olito, Erik I. Svensson, Peter Czuppon, Tim Connallon   +10 more
wiley   +1 more source

Campanha Antiofídica em Minas Gerais

Memorias do Instituto Oswaldo Cruz, 1958
O A. descreve as fases da campnha antiofídica em Minas Gerais (1918 a 1940). Registra as seguintes espécies de ofídios venenosos encontrados: Bothrops cotiara, Bothrops alternata, Bothrops atrox, Bothrops neuwiedii, Bothrops jararaca, Bothrops inaequalis,
Octávio de Magalhães
doaj   +1 more source

Tissue Localization and Extracellular Matrix Degradation by PI, PII and PIII Snake Venom Metalloproteinases: Clues on the Mechanisms of Venom-Induced Hemorrhage [PDF]

, 2015
20 páginas, 4 figuras, 3 tablas y 7 tablas en material suplementario.Snake venom hemorrhagic metalloproteinases (SVMPs) of the PI, PII and PIII classes were compared in terms of tissue localization and their ability to hydrolyze basement membrane ...
A Osaka, A Rucavado, A Rucavado, AF Pinto, AK Oliveira, Alexandra Rucavado, AM Moura-da-Silva, AM Moura-da-Silva, Ana Moura, BG Fry, C Baldo, Cristina Herrera, DB Gould, Diego Morazán, E Camacho, EN Baramova, EN Baramova, EN Baramova, J Durban, Jay W. Fox, JJ Calvete, JM Gutiérrez, JM Gutiérrez, JM Gutiérrez, JM Gutiérrez, José María Gutiérrez, Juan J. Calvete, JW Fox, Jéssica Kele A. Macêdo, K Kühn, K Kühn, L Watanabe, Libia Sanz, Mathieu-Benoit Voisin, N Jiménez, NR Casewell, NR Casewell, NR Casewell, PD Yurchenco, PD Yurchenco, R Timpl, SM Serrano, SM Serrano, SM Serrano, Sussan Nourshargh, SV Costes, T Escalante, T Escalante, T Escalante, T Nikai, Teresa Escalante, UK Laemmli, WJ Wang   +52 more
core   +4 more sources

Spatial Structure Explains Morphological Variation Better Than Climatic Gradients in the South American Rattlesnake (Crotalus durissus)

Ecology and Evolution, Volume 16, Issue 3, March 2026.
We evaluated whether climatic gradients or spatial structure better explain body size variation in the South American rattlesnake (Crotalus durissus) across its wide geographic range. After explicitly accounting for spatial autocorrelation, climatic variables were not significant predictors of body size in either sex, whereas sex‐specific spatial ...
Mileny Otani, Henrique Caldeira Costa, Cláudio Henrique Zawadzki, Diego J. Santana   +3 more
wiley   +1 more source

Actions of Crotalus durissus terrificus venom and crotoxin on the isolated rat kidney

Brazilian Journal of Medical and Biological Research, 2001
Many studies have reported the occurrence of lethal acute renal failure after snakebites. The aim of the present investigation was to determine alterations in renal function produced by Crotalus durissus terrificus venom and crotoxin as well as the ...
H.S.A. Monteiro, I.M.S.C. da Silva, A.M.C. Martins, M.C. Fonteles   +3 more
doaj   +1 more source

CHARACTERISTICS OF MANGROVE DIAMONDBACK TERRAPINS (MALACLEMYS TERRAPIN RHIZOPHORARUM) INHABITING ALTERED AND NATURAL MANGROVE ISLANDS [PDF]

, 2014
The Mangrove Diamondback Terrapin, (Malaclemys terrapin rhizophorarum) is dependent on a very broad array of the services provided by the mangrove ecosystem. We sought to evaluate both the turtles and their habitat by an integrated assessment of physical,
Baldwin, John D., Bossart, Gregory D., Forstner, Michael R.J., Mealey, Brian K., Parks-Mealey, Greta B.   +4 more
core   +2 more sources

Population dynamics of a long‐lived pitviper inferred from capture–recapture data spanning four decades

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract Long‐term studies of plant and animal populations are rare, particularly for long‐lived species with slow life histories. However, such studies are necessary to understand how population dynamics are affected by variation in vital rates. We used a large capture–recapture dataset spanning four decades (1983–2019) to estimate several population ...
Sasha J. Tetzlaff, Eric T. Hileman, Matthew G. Simon, Gordon W. Schuett, Mark A. Davis, William S. Brown   +5 more
wiley   +1 more source

High Trypanosoma spp. diversity is maintained by bats and triatomines in Espírito Santo state, Brazil [PDF]

, 2017
The aim of this study was to reevaluate the ecology of an area in the Atlantic Forest, southeast Brazil, where Chagas disease (CD) has been found to occur.
Costa, Leonora Pires, Costa, Luciana M., Dario, Maria Augusta, Jansen, Ana Maria, Leite, Yuri Luiz Reis, Lisboa, Cristiane Varella, Llewellyn, Martin S., Moratelli, Ricardo, Nascimento, Monique Pereira, Roque, André Luiz Rodrigues, Xavier, Samanta Cristina das Chagas   +10 more
core   +6 more sources

USE OF INHALANT ANESTHETICS IN THREE SNAKE SPECIES [PDF]

, 2000
Different snake species respond differently to various anesthetic agents. Hence, an anesthetic procedure developed for one species cannot necessarily be safely transferred to another species.
Blouin-Demers, Gabriel, Brown, Gregory P., Parent, Christopher E., Shilton, Catherine M., Weatherhead, Patrick J.   +4 more
core   +2 more sources

Perspectives on the Effect of Incubation Temperature on Pine Snake Hatchlings

Ethology, Volume 132, Issue 3, Page 149-174, March 2026.
Effect of timing of egg‐laying and incubation temperature on the possible phenology of events for early egg‐laying females (laying June 15, the earliest laying date), the mid‐laying date (July 4), and late egg‐laying females (July 17, the latest egg‐laying date). Based on data from many papers.
Joanna Burger
wiley   +1 more source