|
|
|
| Registros recuperados: 63 | |
|
| |
|
| |
|
|
| Sazima,Ivan. |
| Small psittacids remain unrecorded as dispersal agents of palm fruits in Brazil. I record here the plain parakeet (Brotogeris tirica), an Atlantic forest endemic, feeding on and dispersing the fruits of the palm Syagrus romanzoffiana at Ubatuba, northern coast of São Paulo, Southeastern Brazil. The birds removed the fruit and carried it away from the mother-tree in about 40% of the feeding records. While perched on trees and shrubs of the understorey, the parakeets removed and ingested most of the mesocarp, dropping the partly consumed fruit. As the parakeets damaged no the embryo and may feed at a distance from the mother-tree, they act as primary dispersal agents. This is the first substantiated record of a small Neotropical psittacid as a stomatochorous... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird-plant symbiosis; Psittacidae; Arecaceae; Feeding behaviour; Synzoochory. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000100026 |
| |
|
|
| Robert, René; Parra, René. |
| Depuis 1988, d'importantes mortalités de palourdes japonaises Ruditapes philippinarum ont été enregistrées, sur de nombreux élevages, dans le bassin d'Arcachon. Pour expliquer celles-ci, l'hypothèse d'une prédation par la dorade royale Sparus aurata et par le baliste Balistes capriscus était avancée. Afin de la vérifier, une étude expérimentale de la prédation de la palourde par ces deux poissons a été réalisée en laboratoire. Si les relations taille prédateurs-taille proies sont plus marquées chez le baliste, les deux espèces sont particulièrement voraces, puisqu'elles s'avéraient capables de consommer, en 24 h, 500 petits naissains et 350 jeunes palourdes de 25 mm de longueur, 50 % à 70 % des proies étant consommés au cours des 6 premières heures.... |
| Tipo: Text |
Palavras-chave: Sparus aurata; Balistes capriscus; Ruditapes philippinarum; Palourde; Prédation; Comportement alimentaire; Sparus aurata; Balistes capriscus; Ruditapes philippinarum; Manila clam; Predation; Feeding behaviour. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00015/12601/9479.pdf |
| |
|
|
| Matabos, Marjolaine; Cuvelier, D.; Brouard, J.; Shillito, B.; Ravaux, J.; Zbinden, M.; Barthelemy, D.; Sarradin, Pierre-marie; Sarrazin, Jozee. |
| Identifying the factors driving community dynamics in hydrothermal vent communities, and in particular biological interactions, is challenged by our ability to make direct observations and the difficulty to conduct experiments in those remote ecosystems. As a result, we have very limited knowledge on species’ behaviour and interactions in these communities and how they in turn influence community dynamics. Interactions such as competition or predation significantly affect community structure in vent communities, and video time-series have successfully been used to gain insights in biological interactions and species behaviour, including responses to short-term changes in temperature or feeding strategies. In this study, we combined in situ and ex situ... |
| Tipo: Text |
Palavras-chave: Abyss Box; Biological interactions; Deep-sea observatory; Eiffel Tower edifice; Feeding behaviour; Experimental research; Video imagery; Time series; Lucky Strike; Mid-Atlantic Ridge; 37 degrees 17 ' N; 32 degrees 16.3 ' W. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00266/37714/35732.pdf |
| |
|
| |
|
|
| Burel, Christine; Robin, Jean; Boujard, Thierry. |
| The capability of turbots to use self-feeders was studied using 3 groups of 100 juveniles. Feeding activity reached a plateau after 20 days. Almost all feeding activity was observed during the photophase, and the acrophase was associated with dawn. The proportion of nocturnal demands was the highest in the replicate with the lowest feed efficiency, suggesting that feed waste was mainly occurring during nocturnal feeding activity. During the last 30 days of the experiment, demands were only rewarded during two periods of 2.5 h.day(-1). Feed efficiency was improved and was homogeneous between the three tanks, but the voluntary feed intake was reduced. It is concluded that turbots are able to use self-feeders but they do not adapt quickly, and they are not... |
| Tipo: Text |
Palavras-chave: Turbot; Self-feeders; Feeding behaviour; Feeding rhythms. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00335/44652/57339.pdf |
| |
|
| |
|
|
| Benhaim, David; Pean, Samuel; Brisset, Blandine; Leguay, Didier; Begout, Marie-laure; Chatain, Beatrice. |
| This study aims to test the influence of size grading on self-feeding behaviour, social structure (measured by the percentage of triggering acts per individual), growth performances, and blood physiological variables of individually passive integrated transponder (PIT)-tagged sea bass juveniles, using a computerized on-demand feeding system coupled with a PIT tag monitoring device. Three consecutive periods of 27 days each were compared: a first period (P1) before grading (6 tanks of 100 fish; 40.2 +/- 8.9 g) followed by a second period (P2) after grading. The protocol applied aimed to create two groups of fish of similar mean weight but with either a low or a high coefficient of variation of weight (CV(w)) corresponding to an imposed difference in social... |
| Tipo: Text |
Palavras-chave: Feeding behaviour; Self feeder; Triggering activity; Heterogeneity; Growth; Grading. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00057/16858/14340.pdf |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Aloncle, Henri; Delaporte, Francis. |
| This work is divided into 4 parts. First, in a broad introduction, a short history is given on albacore fishing in the bay of Biscay from its origin until its present extension in the neighbourhood of the Acores. This is followed by a history of the research beginning with the first attempts at classifying the albacore and then with the first investigations done on research ships; then the authors explain the reasons and the evolution of their work with reference to what was already known. The 2nd part of the study describes the campaigns of research from 1967 to 1972 to study the albacore in the north east Atlantic and the fishing and prospecting techniques used during these campaigns. The 3rd part of this investigation shows the research works sensu... |
| Tipo: Text |
Palavras-chave: ANE; Thunnus alalunga; Catching methods; Feeding behaviour; Biological rhythms; Ecology. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2075.pdf |
| |
|
| |
|
| |
|
|
| Geistdoerfer, Patrick. |
| This paper is a study of the feeding ecology of Macrouridae. After Data on their taxonomy and on the stomach contents, the author gives the results obtained: coefficient of vacuity, indication of a prey frequency, percentage in number and in weight, the mean number of prey per stomach, the mean weight of the prey, the alimentary coefficient of a prey. The diet of every species of Macrouridae and the characteristics of feeding in these species are described. He concludes with considerations on the Macrouridae in the ocean and their geographical distribution, and on the deep feeding chain, especially the trophic role of different groups of preys. It is thought that, in the Macrouridae, the alimentary diet is little specialized, and based on benthic and... |
| Tipo: Text |
Palavras-chave: Macrouridae; Stomach content; Feeding behaviour. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/1978/publication-1957.pdf |
| |
|
|
| Natchev, N.; Heiss, E.; Singer, K.; Kummer, S.; Salaberger, D.; Weisgram, J.. |
| The present study examined the kinematic patterns of initial food uptake, food transport, pharyngeal packing and swallowing in the common musk turtle Sternotherus odoratus. These data are supplemented by morphological descriptions of the skull and the hyolingual complex. Although the hyoid is mainly cartilaginous, S. odoratus still use exclusively hydrodynamic mechanisms in prey capture and prey transport. The tongue is relatively small, with weakly developed intrinsic musculature. We propose that the elasticity of the hypoglossum and the hyoid body impacts the capability of S. odoratus to suction feed, but allows these turtles to effectively re-position the food items within the oropharyngeal cavity during transport, manipulation and pharyngeal packing.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Feeding behaviour; Head morphology; Motion analysis; Mud turtles; Suction; 42.82. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/377200 |
| |
|
|
| Bittencourt-Rodrigues,Rebecca de S.; Zucoloto,Fernando S.. |
| Ascia monuste Godart, known as the kale caterpillar, has a specialized diet on Brassicaceae and represents one of the main herbivores of this family in the Neotropical region. The objective of the present study was to determine the performance and oviposition preference of A. monuste for common kale Brassica oleracea (Brassicaceae, var. acephala) of different ages. The parameters used to assess performance were time to pupation and emergence, emergence rate, digestive indices, relative consumption and growth rates, number of eggs per female, hatching rate, and weight of the imagoes. Chemical and physical properties of young and old kale leaves were determined. In general, caterpillars feeding on new leaves showed better performance than those feeding on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Oviposition preference; Leaf age; Feeding behaviour. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000200004 |
| |
|
|
| Zuanon,Jansen; Bockmann,Flávio A.; Sazima,Ivan. |
| We studied a specialised assemblage of sand-dwelling fish species from a streamlet in central Amazonia. The five sanddwelling species comprised 15.2 % of the total number in the streamlet (33 species). Two of the sand-dwellers are daytime foragers, Characidium cf. pteroides (Crenuchidae) and Stauroglanis gouldingi (Trichomycteridae), whereas three ones are night-time foragers, Gymnorhamphichthys rondoni (Rhamphichthyidae), "Imparfinis" pristos and Mastiglanis asopos (Heptapteridae). With the exception of C. cf. pteroides, the remainder species bury in the sand during their resting period. All five species bear a cryptic, sand-colour pattern, and some are translucent, traits which we regard as advantageous both for evasion from predators and for approaching... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest streams; Fish diversity; Phylogeny; Feeding behaviour; Drift-trap net. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000100012 |
| |
| Registros recuperados: 63 | |
|
|
|
