Consulta: subjectFacets:"Pheromones"
Registros recuperados: 9
Data/hora: 06/06/2024 03:28:41

Why Did the Snake Cross the Road? Effects of Roads on Movement and Location of Mates by Garter Snakes (Thamnophis sirtalis parietalis)
Provedor de dados: 7
Autores: Shine, Richard; University of Sydney; rics@bio.usyd.edu.au; Lemaster, Michael; ; lemasterm@mail.science.orst.edu; Wall, Michael; ; mwall@bio.usyd.edu.au; Langkilde, Tracy; ; langkild@bio.usyd.edu.au; Mason, Robert; ; masonr@science.oregonstate.edu.
If animals avoid road surfaces or are unable to follow conspecific trails across such surfaces, previously continuous populations may be fragmented. We gathered data on the effects of a small (4-m wide) gravel road on the behavior and trail-following abilities of garter snakes (Thamnophis sirtalis parietalis) in Manitoba, central Canada. As expected, the road surface had less vegetation cover, a more open canopy and, thus, higher incident radiation than did the surrounding grassland. Contrary to expectations, however, substrate temperatures were lower on the road than in its surrounds, because of the higher reflectivity of the road's surface. On a nearby asphalt road, substrate temperatures were relatively high on the road surface only in the evening, as...
Tipo: Peer-Reviewed Reports
Palavras-chave: Behavior; Connectivity; Habitat fragmentation; Pheromones; Reproduction; Reptile.
Ano: 2004

3-Acetoxy-fatty acid isoprenyl esters from androconia of the ithomiine butterfly Ithomia salapia
Provedor de dados: 5
Autores: Mann, Florian; Szczerbowski, Daiane; De Silva, Lisa; Mcclure, Melanie; Elias, Marianne; Schulz, Stefan.
Male ithomiine butterflies (Nymphalidae: Danainae) have hairpencils on the forewings (i.e. androconia) that disseminate semiochemicals during courtship. While most ithomiines are known to contain derivatives of pyrrolizidine alkaloids, dihydropyrrolizines or g-lactones in these androconia, here we report on a new class of fatty acid esters identified in two subspecies, Ithomia salapia aquinia and I. s. derasa. The major components were identified as isoprenyl (3-methyl-3-butenyl) (Z)-3-acetyloxy-11-octadecenoate, isoprenyl (Z)-3-acetyloxy-13-octadecenoate (12) and isoprenyl 3-acetyloxyoctadecanoate (11) by GC/MS- and GC/IR-analyses, microderivatizations, and synthesis of representative compounds. The absolute configuration of 12 was determined to be R. The...
Tipo: Text
Palavras-chave: Fatty acid esters; Mass spectrometry; Mimicry; Pheromones; Pyrrolizidine alkaloids.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00643/75512/76362.pdf

CHEMICAL COMMUNICATION IN Apis mellifera: TEMPORAL MODULATION OF ALARM BEHAVIORS
Provedor de dados: 79
Autores: COSTA,H.; TALORA,D. C.; PALMA,M.S.; CHAUD-NETTO,J.
The effect of pheromones and their chemical analogues in honeybee alarm behaviors was studied in observation boxes. Defensive behaviors, as follows: a) attraction to scent source, b) elevation of wings in "V", c) abdomen elevation, d) abdomen elevation and pumping and e) first leg pair elevation had been temporarily registered when the following compounds were presented: isoamyl alcohol, octyl alcohol, benzyl alcohol, n-butyl acetate, n-octyl acetate, isopentyl acetate, benzyl acetate and 2-heptanone. The results were as follows: 1. the bees elicited some characteristic behaviors when chemical alarm messages were presented, 2. agression (stinging) was not completed with any compound tested, probably because there was not a target (visual stimulus), 3. in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Defensive behavior; Alarm behaviors; Pheromones; Hybrid honey bees; Chemical communication.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100005

Use of repellents for honeybees (Apis mellifera L.) in vitro in the yellow passion-fruit (Passiflora edulis Deg) crop and in confined beef cattle feeders
Provedor de dados: 80
Autores: Nicodemo,D.; Nogueira Couto,R. H.
The presence of Apis mellifera in places such as candy and soft drink factories, restaurants, and ice-cream shops has been a concern to many people. In the yellow passion-fruit crop, Apis mellifera is able to collect all anther pollen but has no active role in pollination. Honeybees also visit animal feeders with chopped sugar cane, preventing the cattle from eating. This work studied the effect of natural and synthetic substances as Apis mellifera repellents in vitro in the yellow passion-fruit crop and in confined beef cattle feeders. There was a repellent effect in vitro with the following substances in decreasing order: tobacco, rue, garlic, parsley, and century plant extracts; average effect was twenty-five minutes. For the yellow passion-fruit,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honeybees; Repellents; Yellow passion fruit crop; Beef cattle feeder; Pheromones.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992004000100006

Busseola fusca (Fuller), the African Maize Stalk Borer:
Provedor de dados: 30
Autores: K.M.
Palavras-chave: Diapause; Pheromones; Sorghum; Biological interaction; Animal developmental stages; Maize; Cultural control; Millets; Yield losses.
Ano: 1992
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3981

Pest Management in Stored Groundnuts
Provedor de dados: 30
Autores: K.M.     International Crops Research Institute for the Semi-Arid Tropics.
Palavras-chave: Stored products; Biological interaction; Sampling; Groundnuts; Pheromones; Animal developmental stages; Grain; Insecticides; Tropical zones; Diapause.
Ano: 1987
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4041

International Workshop on Sorghum Stem Borers
Provedor de dados: 30
Palavras-chave: Sorghum; Biological interaction; Animal developmental stages; Genotypes; Yield losses; Genes; Diapause; Pheromones; Insecticides.
Ano: 1989
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4080

Discrimination of bile acids by the rainbow trout olfactory system: Evidence as potential pheromone
Provedor de dados: 48
Autores: GIAQUINTO,PERCILIA C; HARA,TOSHIAKI J.
Electro-olfactogram recording was used to determine whether the olfactory epithelium of adult rainbow trout is specifically sensitive to bile acids, some of which have been hypothesized to function as pheromones. Of 38 bile acids that had been pre-screened for olfactory activity, 6 were selected. The rainbow trout-specific bile acids, taurocholic acid (TCA), and taurolithocholic acid 3-sulfate (TLS) were the most potent compounds tested. TLS had a distinctive dose-response curve. Cross-adaptation experiments demonstrated that sensitivity to bile acids is attributable to at least 3 independent classes of olfactory receptor sites. Our data suggest that bile acids are discriminated by olfaction in rainbow trout, supporting the possibility that these compounds...
Tipo: Journal article
Palavras-chave: Bile acids; Chemical signals; Electro-olfactogram; Olfaction; Pheromones; Rainbow trout.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000100005

Dufour glands in the hymenopterans (Apidae, Formicidae, Vespidae): a review
Provedor de dados: 57
Autores: ABDALLA,F. C.; CRUZ-LANDIM,C. da.
Associated to the sting apparatus of the aculeate hymenopterans is found the poison gland, originated from the glands associated to the ovipositor of the non-aculeate hymenopterans and the less derived Dufour gland, homologue of the coletterial gland of other insects, and found in all hymenopteran females. The Dufour gland functions is mostly uncertain in hymenopterans but in ants it is involved with communication and defense and in non social bees with the nest building and protection. In wasps possibly with kin-recognition. Differences in morphology and chemical composition of the gland secretion were observed among species, in the same species, between the castes in the social species and among individual of the same caste playing different tasks or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dufour gland; Hymenopterans; Morphology; Pheromones; Ultrastructure.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100013