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| Registros recuperados: 31 | |
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| Ronzani Cerqueira, Vinicius. |
| Several sea bass-rearing experiments were performed from hatching trough metamorphosis. The rearing units employed were 500 1 polyester tanks, where flow rate and temperature of seawater, light and suitable food (rotifer and artemia) were controlled. Stock density ranged between 50 and 100 larvae per liter. Individuals held in tanks with internal black walls developed faster and had a greater survival rate than those in white tanks. This suggests that a better contrast between preys and background assists the larvae to see food organisms more clearly. The sea bass larvae search for food is based only in vision and not trought mechanoreceptors or chemoreceptors. It was very difficult to evaluate the light intensity (50-5000 lux) influence on feeding,... |
| Tipo: Text |
Palavras-chave: Food; Prey; Light; Zootechnical; Digestive transit; Temperature; Dicentrarchus labrax; Intensive rearing; Sea bass. |
| Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/1986/these-1676.pdf |
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| Baños Díaz,Heyker Lellani; Louzada,Elaine; Moura,Nazare; Martínez Rivero,María de los Ángeles; Páez Bueno,Vanda Elena. |
| Data obtained in studies on the biology and reproduction of Macrolophus basicornis (Heteroptera: Miridae) preying on Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) on tomato at 28°C, were used to construct life tables for this polyphagous mirid. When M. euphorbiae was preying on M. persicae, the net reproductive rate (Ro) was 4.75, the intrinsic rate of increase (r m) 0.02 (hembra/hembra/day), the mean generation time (T) and the doubling time (DT) 73.91 and 32.9 days, respectively. The corresponding values when it was feeding on M. euphorbiae were 2.57, 0.01, 1.014 days and 49.35 days, respectively. The results demonstrated that M. basicornis could survive and reproduce with M. persicae as well as M. euphorbiae as preys, although the number... |
| Tipo: Journal article |
Palavras-chave: Life table; Macrolophus basicornis; Prey; Myzus persicae; Macrosiphum euphorbiae; Tomato plants. |
| Ano: 2014 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000200003 |
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| Levins,Richard; Miranda,Ileana. |
| In the present work, the models of dynamics ecological populations were described. The development of the models, in order to describe these populations was presented. They have evolved from an independent way to the models that represent the evaluation of epidemiology in humans. The differential equations that describe the relationships prey-predator, crop-pest and migration effect were shown. It was also described the possibility to represent these models by means of equations in difference and computerized simulation systems. The interconnection between a mathematical model and the ecosystem stability according to the biological parameters was showed. Ecological questions that can be answered analyzing the models were approached. |
| Tipo: Journal article |
Palavras-chave: Mathematical models; Prey; Predator; Migration; Ecosystem. |
| Ano: 2007 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522007000100001 |
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| Giovanetti,Manuela. |
| Cerceris is a very interesting genus, providing species living in all continents, in different climatic conditions, showing behaviors ranging from solitary to social. About the nesting habit of this genus, many authors described nest characteristics and prey, providing useful material for comparison. Yet, the majority of species studied so far live in temperate regions and we lack information about the tropical ones. The high number of species and their wide distribution suggest a phylogenetic adaptability that merit to be studied deeper. I investigated nest and prey of a tropical species, Cerceris binodis Spinola, on Barro Colorado Nature Monument in Panamá. The study was performed during three dry seasons, marking and excavating nests, observing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adaptability; Cerceris binodis; Clytrinae; Nest structure; Prey; Tropical wet forest. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000500002 |
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| Quero, Jean-claude; Spitz, J. |
| In 2005, a flying fish Cheilopogon cyanopterus, which doesn't figure among the Europeans faunas although pointed out in 1973, is captured in the Bay of Biscay. Following the catch of a Cubiceps gracilis near the coast in Britain, the authors recapitulating the former descriptions indicate that adults of this oceanic species remain in the open sea. Only juveniles come, rarely, to the coast. The species figures in the diet of common dolphins, striped dolphins, swordfishes and tunas. NOT CONTROLLED OCR |
| Tipo: Text |
Palavras-chave: Prey; Bay of Biscay; Cubiceps gracilis; Cheilopogon cyanopterus; Pisces; Golfe de Gascogne; Distribution; Cubiceps gracilis; Cheilopogon cyanopterus; Pisces. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-3657.pdf |
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| Prezoto,Fábio; Lima,Maria A.P.; Machado,Vera L.L.. |
| The social wasps are predators of several species of insects and the study of their preys can reveal their potential for programs of biological pest control. During the period of September 2000 to January 2002, were accomplished 70h of collections of the preys captured in twelve nests of Polybia platycephala Richards, placed in urban areas of Juiz de Fora municipality, Minas Gerais State, Brazil. The preys captured by P. platycephala include five orders of insects: Diptera (33.4%), Lepidoptera (28.6%), Hemiptera (12.0%), Hymenoptera (9.4%) e Coleoptera (7.2%). The mean weight of protein charge carried by the wasps was 1.9 ±1.6mg (n = 34, 0.3 - 6.2 mg), and the mean of protein transported per day was 22.8 mg. According to the results, we could estimate that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Social wasp; Foraging activity; Prey; Biological control. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000500019 |
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| Registros recuperados: 31 | |
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