Results 21 to 30 of about 26,825 (204)

A further cost for the sicker sex? Evidence for male-biased parasite-induced vulnerability to predation [PDF]

, 2016
Males are typically the sicker sex. Data from multiple taxa indicate that they are more likely to be infected with parasites, and are less ‘tolerant’, or less able to mitigate the fitness costs of a given infection, than females.
Adelman, Alzaga, Arendt, Bakke, Barber, Barber, Bateman, Bergstrom, Binning, Blake, Bush, Cable, Cable, Cable, Cable, Clutton-Brock, Coltman, Croft, Domenici, Eraud, Fraser, Ghalambor, Gotanda, Harris, Hockley, Janssens, Johnson, Johnson, Joly, Kolluru, Lochmiller, Lopez-Sepulcre, López, Magurran, Martin, McKellar, Oosterhout, Oosterhout, Oosterhout, Packer, Peig, Poulin, Previtali, Pérez-Jvostov, R Core Team, Raffel, Reznick, Rolff, Råberg, Schmid-Hempel, Scott, Seghers, Sparkman, Stephenson, Stephenson, Xavier, Zuk, Zuk, Östlund-Nilsson   +58 more
core   +3 more sources

DNA Barcoding and Phylogenetics of Freshwater Ornamental Fish Using Mitochondrial COI Gene [PDF]

BIO Web of Conferences
The purpose of this study was to identify and conserve local fish that have the potential to be ornamental fish. The total sample was 16 fish. Methods employed were DNA isolation, polymerase chain reaction (PCR) and COI gene sequencing. The DNA sequences
Suryani Sang Ayu Made Putri, Pramana I Gusti Ngurah, Wirawan I Gede Putu   +2 more
doaj   +1 more source

Experimental harvesting of fish populations drives genetically based shifts in body size and maturation [PDF]

, 2013
Size-selective harvesting in commercial fisheries can induce rapid changes in biological traits. While experimental and wild harvested populations often exhibit clear shifts in body size and maturation associated with fishing pressure, the relative ...
Christine Dreyer, Cock van Oosterhout, Fernanda M Rodrigues, Gary R Carvalho, Indar W Ramnarine, Martin I Taylor, Salinas S, Serinde J van Wijk, Simon Creer, Stokes K   +9 more
core   +1 more source

Competência de peixes como predadores de larvas de Aedes aegypti, em condições de laboratório Efficacy of fish as predators of Aedes aegypti larvae, under laboratory conditions

Revista de Saúde Pública, 2007
OBJETIVO: Avaliar a competência de peixes na predação de larvas de Aedes aegypti, em condições de laboratório. MÉTODOS: Foram testados machos e fêmeas de cinco espécies de peixe. Os testes de predação duravam cinco semanas para cada espécie.
Luciano Pamplona de Góes Cavalcanti, Ricardo José Soares Pontes, Ana Cláudia Ferreira Regazzi, Francisco José de Paula Júnior, Rodrigo Lins Frutuoso, Emanuel Primos Sousa, Fábio Fernandes Dantas Filho, José Wellington de Oliveira Lima   +7 more
doaj   +1 more source

Turbidity influences individual and group level responses to predation in guppies, Poecilia reticulata [PDF]

, 2015
© 2015 The Association for the Study of Animal Behaviour. Increasing turbidity (either sedimentary or organic) from anthropogenic sources has significant negative impacts on aquatic fauna, both directly and indirectly by disrupting behaviour.
Kimbell, Helen S., Morrell, Lesley, Morrell, Lesley J.   +2 more
core   +1 more source

Sperm storage by males causes changes in sperm phenotype and influences the reproductive fitness of males and their sons [PDF]

, 2017
Recent studies suggest that environmentally induced effects on sperm phenotype can influence offspring phenotype beyond the classic Mendelian inheritance mechanism.
Adriaenssens, Aitken, Almbro, Bonduriansky, Bonduriansky, Boschetto, Crean, Crean, Crean, Curley, El Jack, Evans, Evans, Evans, Evans, Falconer, Firman, Franco, Froman, Gasparini, Gasparini, Gasparini, Gasparini, Head, Holt, Houde, Immler, Immler, Jensen, Jones, Kilgallon, Lynch, Marshall, Orr, Parker, Perry, Pilastro, Pilastro, Pilastro, Pizzari, Poiani, R Development Core Team, Rahman, Rahman, Reinhardt, Reinhardt, Sheldon, Simmons, Simmons, Siva-Jothy, Tan, Tarin, Vasudeva, White, Zajitschek   +54 more
core   +1 more source

Control Strategies in Guanine Biocrystallization

Angewandte Chemie, EarlyView.
Biological guanine crystals produce spectacular photonic phenomena in animals and hold great promise as new, sustainable optical materials. We review how organisms precisely control the structure, morphologies, and resulting optical properties of these crystals using a set of ingenious ‘design’ strategies, including control of pH, template‐directed ...
Shashanka S. Indri, Avital Wagner, Benjamin A. Palmer   +2 more
wiley   +2 more sources

Cryptic MHC Polymorphism Revealed but Not Explained by Selection on the Class IIB Peptide-Binding Region [PDF]

, 2012
The immune genes of the major histocompatibility complex (MHC) are characterized by extraordinarily high levels of nucleotide and haplotype diversity. This variation is maintained by pathogen-mediated balancing selection that is operating on the peptide ...
Barcaccia, Barson, C. van Oosterhout, Castric, Cvitanich, Eimes, Ellegren, Fraser, Fraser, Fraser, Gibbs, Hughes, Hughes, Hughes, Hughes, Jensen, Kanagawa, Li, M. McMullan, Martin, Mehta, Mona, Nei, Piertney, Posada, Smith, Spurgin, Stone, Uyenoyama, Uyenoyama, V. Llaurens, van Oosterhout, Willing   +32 more
core   +1 more source

'Selfish herds' of guppies follow complex movement rules, but not when information is limited [PDF]

, 2015
Under the threat of predation, animals can decrease their level of risk by moving towards other individuals to form compact groups. A significant body of theoretical work has proposed multiple movement rules, varying in complexity, which might underlie ...
Kimbell, Helen S., Morrell, Lesley J.
core   +2 more sources

Pengaruh ukuran tubuh ikan Poecilia reticulata pada daya pemangsaannya terhadap larva Culex quinquefasciatus

Journal of Biological Researches, 1999
The research aimed to know the influence of poecilia reticulata body size, in the feeding capacity on Culex quinquifasciatus larvae. The research was experimental method with Complete Random Design., each treatment with 5 replications.
Noer Moehammadi
doaj   +1 more source