Results 31 to 40 of about 26,825 (204)
Can mixed-species groups reduce individual parasite load? A field test with two closely related poeciliid fishes (Poecilia reticulata and Poecilia picta). [PDF]
PLoS ONE, 2013 Predation and parasitism are two of the most important sources of mortality in nature. By forming groups, individuals can gain protection against predators but may increase their risk of being infected with contagious parasites.
Felipe Dargent +4 more
doaj +1 more source
Neotropical Ichthyology, 2017 Headwater creeks are environments susceptible to invasion by non-native fishes. We evaluated the reproduction of 22 populations of the non-native livebearers guppy Poecilia reticulata, black molly Poecilia sphenops, Yucatan molly Poecilia velifera, green
André Lincoln Barroso Magalhães +1 more
doaj +1 more source
Predation risk reduces a female preference for heterospecific males in the green swordtail [PDF]
, 2016 The presence of a predator can result in the alteration, loss or reversal of a mating preference. Under predation risk, females often change their initial preference for conspicuous males, favouring less flashy males to reduce the risk of being detected ...
Alonzo, Suzanne H. +2 more
core +1 more source
Graellsia, 2023 El conocimiento acerca de la ictiofauna de los tramos altos del río Meta, uno de los principales afluentes del Orinoco, es aún poco conocida. En este trabajo se presenta el primer listado de peces registrados para el río Ocoa, a partir de 51 901 ...
Hernando Ramírez-Gil +2 more
doaj +1 more source
Predator-induced changes of female mating preferences: innate and experiential effects [PDF]
, 2011 Background: In many species males face a higher predation risk than females because males display elaborate traits that evolved under sexual selection, which may attract not only females but also predators. Females are, therefore, predicted to avoid such
Bierbach, David +12 more
core +2 more sources
A Comparison of the Trojan Y Chromosome Strategy to Harvesting Models for Eradication of Non-Native Species [PDF]
, 2019 The Trojan Y Chromosome Strategy (TYC) is a promising eradication method for biological control of non-native species. The strategy works by manipulating the sex ratio of a population through the introduction of \textit{supermales} that guarantee male ...
Hill J. E. +5 more
core +3 more sources
Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]
, 2011 Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin +2 more
core +1 more source
Effect of Temperature on Reproduction and Sex Ratio of Guppy (Poecilia reticulata Peters)
Jurnal Akuakultur Indonesia, 2007 Water temperature could affect the reproduction of broodstock and sex ratio of progeny. In this study, broodstock of guppy (Poecilia reticulata Peters) was reared in different temperature to determine its effect on reproduction of broodstock and sex ...
H. Arfah, S. Mariam, . Alimuddin
doaj +1 more source
Getting into hot water:sick guppies frequent warmer thermal conditions [PDF]
, 2016 Ectotherms depend on the environmental temperature for thermoregulation and exploit thermal regimes that optimise physiological functioning. They may also frequent warmer conditions to up-regulate their immune response against parasite infection and/or ...
Adesh Ramsubhag +49 more
core +2 more sources
Biology, 2021 Studies of suites of correlated behavioral traits (i.e., behavioral syndromes) aid in understanding the adaptive importance of behavioral evolution. Behavioral syndromes may be evolutionarily constrained, preventing behaviors from evolving independently,
James J. Muraco +3 more
doaj +1 more source