Results 51 to 60 of about 27,048 (222)

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

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

Journal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry, Phil I. Davison, Luke Pearson, Gordon H. Copp   +3 more
wiley   +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

Nonapeptide cell size differs between male morphs of the West African cichlid, Pelvicachromis pulcher

Journal of Fish Biology, EarlyView.
Abstract Alternative male morphs are found in many species of fishes. These morphs often differ in suites of social behaviours, such as aggression and territoriality, associated with alternative reproductive tactics. Such consistent morph‐typical behavioural profiles suggest common differences in underlying neuroendocrine mechanisms.
Adam R. Reddon, Douglas R. Wylie, Peter L. Hurd   +2 more
wiley   +1 more source

Poecilia reticulata Peters 1859

, 2018
{"references": ["Pavanelli CS, Graca WJ, Zawadzki CH, Britski HA, Vidotti AP, Avelino GS, Verissimo S. Fishes from the Corumba Reservoir, Paranaiba River drainage, upper rio Parana basin, State of Goias, Brazil. Check List. 2007; 3 (1): 58 - 64."]}
Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da, Pavanelli, Carla Simone   +3 more
openaire   +2 more sources

The Begoniaceae of Colombia The Begoniaceae of Colombia

Caldasia, 1946
Begonia (§ Poecilia) semiovata / Begonia (? § Poecilia) subcostata / Begonia (§ Poecilia) filipes / Begonia (§ Poecilia) hirtella / Begonia (§ Begoniastrum) microcarpa / Begonia (?
Smith Lyman B., Schubert Bernice G.
doaj  

Interspecific association of brown trout (Salmo trutta) with non-native brook trout (Salvelinus fontinalis) at the fry stage [PDF]

, 2017
The introduction of non-native brook trout (Salvelinus fontinalis) in Europe has led to displacement and decreasing populations of native brown trout (Salmo trutta).
Johnsson, Jörgen I., Koeck, Barbara, Lovén Wallerius, Magnus, Näslund, Joacim   +3 more
core   +1 more source

Size‐selective mortality evolutionarily alters collective behaviour in response to predation risk in a zebrafish (Danio rerio) harvest‐induced selection model

Journal of Fish Biology, EarlyView.
Abstract Intensive multigenerational size‐selective mortality has been found to alter collective properties like shoaling via evolutionary adaptations of individual‐level behavioural traits. For example, experimental populations of zebrafish (Danio rerio) experiencing intensive large size‐selective mortality over multiple generations developed less ...
Tamal Roy, Daniel João Costa Pereira de Faria, Robert Arlinghaus   +2 more
wiley   +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

Sexual selection and reproductive success in mesocosm populations of African annual killifish

Journal of Fish Biology, EarlyView.
Abstract Variation in individuals’ ability to obtain mates generates sexual selection, which typically acts more strongly on males and can produce pronounced differences in phenotypes between the sexes (i.e., sexual dimorphism). The dynamic of sexual selection and individual reproductive success is considerably affected by the availability of ...
Jakub Žák, Klára Mrkvová, Martin Reichard   +2 more
wiley   +1 more source