ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Use of predator odors as repellents to reduce feeding damage by herbivores (1988)
    Springer
    Journal of chemical ecology 14 (1988), S. 363-377 
    Details
    ISSN: 1573-1561
    Keywords: Anal-gland compounds ; 2-propylthietane ; 3-propyl-1,2-dithiolane ; stoat ; vole ; red fox urine ; feces ; 2,5-dihydro-2,4,5-trimethylthiazoline ; crop protection ; feeding suppression ; orchard ; interspecific communication ; kairomones ; predator odors ; Microtus spp. ; Vulpes vulpes ; mustelids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract This study investigated the influence of the major anal-gland compounds from the stoat (Mustela erminea) and fecal and urine compounds from the red fox (Vulpes vulpes) in generating an avoidance response by montane voles (Microtus montanus), as well as suppressing feeding by montane and meadow (M. pennsylvanicus) voles on apple trees in orchards. In trap bioassays, a 1∶1 mixture of 2-propylthietane and 3-propyl-1,2-dithiolane significantly reduced vole captures. Other mixtures of stoat compounds reduced the number of new voles captured but not total individuals. 2,5-Dihydro-2,4,5-trimethylthiazoline, a component of fox feces, significantly reduced vole captures in one of two bioassays. Deer mice (Peromyscus maniculatus) did not show a negative response to any predator odor. In overwinter field bioassays, mixtures of 2-propylthietane and 3-propyl-1,2-dithiolane clearly reduced vole feeding on apple trees in four test blocks. 2,5-Dihydro-2,4,5-trimethylthiazoline and a synthetic fox urine mixture also significantly reduced vole attack in respective orchard blocks. Similarly, the intensity of vole feeding, in terms of amount of bark and vascular tissues removed from trees, was reduced by 60% to 97% in predator odor treatments compared with the control. Our study reports the first long-term (four to five months) use of synthetic semiochemicals as area repellents for crop protection from vole feeding damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01022552
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Use of predator odors as repellents to reduce feeding damage by herbivores (1988)
    Springer
    Journal of chemical ecology 14 (1988), S. 379-389 
    Details
    ISSN: 1573-1561
    Keywords: Predator odors ; mustelids ; anal-gland compounds ; pocket gopher ; avoidance response ; thietanes ; dithiolanes ; crop protection ; orchard ; kairomones ; 2,5-dihydro-2,4,5-trimethylthiazoline ; fox urine and feces ; Vulpes vulpes, Mustela spp. ; Thomomys talpoides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract This study investigated the influence of the major anal-gland compounds from the stoat (Mustela erminea) and ferret (M. putorius) in generating an avoidance response by northern pocket gophers (Thomomys talpoides) in tree fruit orchards in the Okanagan Valley of British Columbia, Canada. A secondary objective assessed the impact of additional predator odors on gopher avoidance behavior in laboratory bioassays. In field bioassays, a 1: 1 mixture of 2-propylthietane and 3-propyl-1,2-dithiolane, as well as 3,3-dimethyl-1,2-dithiolane, placed in gopher burrows did not reduce the number of gophers colonizing treatment versus control grids in orchard blocks. However, these predator gophers did dramatically alter the distribution of gophers. Significantly more gophers were captured at perimeter than nonperimeter trap stations on treatment versus control grids in two of three orchards. In all orchards, significantly more gophers were captured at perimeter stations after the predator odors had been placed in burrows than prior to the start of the experiment. Gophers clearly avoided 2,5-dihydro-2,4,5-trimethylthiazoline, a component of fox (Vulpes vulpes) feces, but did not avoid 2,2-dimethylthietane from the mink (M. vison) or 3-methyl-3-butenyl methyl sulfide from fox urine in laboratory bioassays. Poor avoidance was also recorded for 3,3-dimethyl-1,2-dithiolane, although this may be due to the state of polymerization of this compound. An improved formulation is required to dispense these semiochemicals in controlled-release devices within orchards and other forest-agricultural areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01022553
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Laboratory Evaluation of Predator Odors for Eliciting an Avoidance Response in Roof Rats (Rattus rattus) (1998)
    Springer
    Journal of chemical ecology 24 (1998), S. 49-66 
    Details
    ISSN: 1573-1561
    Keywords: Laboratory bioassay ; Rattus rattus ; roof rats ; avoidance behavior ; mustelids ; anal-gland compounds ; red fox urine ; feces ; Vulpes vulpes ; mongoose ; Herpestes auropunctatus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract We evaluated eight synthetic predator odors and mongoose (Herpestes auropunctatus) feces for eliciting avoidance responses and/or reduced feeding by wild captured Hawaiian roof rats (Rattus rattus). In a bioassay arena, we recorded: (1) time until each rat entered the arena, (2) time elapsed until first eating bout, (3) time spent in each half of the arena, (4) number of eating bouts, and (5) consumption. Rats displayed a response to the predator odors in terms of increased elapsed time before initial arena entry and initial eating bout, a lower number of eating bouts, and less food consumption than in the respective control groups. The odor that produced the greatest differences in response relative to the control group was 3,3-dimethyl-1,2-dithiolane [from red fox (Vulpes vulpes) feces and mustelid anal scent gland]. Mongoose fecal odor produced different responses in four of the five variables measured while (E,Z)-2,4,5-trimethyl-Δ3-thiazoIine (red fox feces) and 4-mercapto-4-methylpentan-2-one (red fox urine and feces) odors were different from the control group in three of the five variables measured. These laboratory responses suggest that wild Hawaiian roof rats avoid predator odors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022384728170
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Field Testing Synthetic Predator Odors for Roof Rats (Rattus Rattus) in Hawaiian Macadamia Nut Orchards (1998)
    Springer
    Journal of chemical ecology 24 (1998), S. 603-630 
    Details
    ISSN: 1573-1561
    Keywords: Field bioassay ; macadamia nut orchards ; Macadamia integrifolia ; Hawaii ; roof rats ; Rattus rattus ; 3,3-dimethyl-1,2-dithiolane ; (E,Z)-2,4,5-trimethyl-Δ3-thiazoline ; radio telemetry ; mark–recapture ; populations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Field trials were conducted to determine whether the synthetic predator odors 3,3-dimethyl-l,2-dithiolane (DMDIT) and (E,Z)-2,4,5-tri-methyl-Δ3-thiazoline (TMT) were effective at eliciting a behavioral response in wild roof rats (Rattus rattus). The study site was a Hawaiian macadamia nut (Macadamia integrifotia) orchard with a recent history of roof rat feeding damage. The synthetic predator odors were encapsulated in urethane devices secured to tree branches. Mark-recapture data from live-trapping of rats and radio telemetry location data were used to assess behavioral responses of rats to the predator odors. Mark–recapture data indicated that DMDIT and TMT had no effect on capture numbers, reproduction, or body weight of rats. There was some indication that distribution of captures and number of locations relative to treated trees in TMT areas were less than in controls, but this pattern was not significant. The predator odors had no effect on home range or median distance from center of activity (MDIS) of rats as measured by telemetry. There was a trend of increasing values of MDIS on TMT areas in session 1 but not session 2. Overall we could not detect significant differences or consistent trends in responses of rats to DMDIT or TMT in these field trials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022304917652
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Feeding responses of snowshoe hares (Lepus americanus) to volatile constituents of red fox (Vulpes vulpes) urine (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 729-739 
    Details
    ISSN: 1573-1561
    Keywords: Red fox urine ; snowshoe hare ; crop protection ; sulfur-containing compounds ; kairomones ; forestry ; volatile constituents ; feeding suppression ; bioassays ; synthetic urine mixture ; interspecific communication ; Vulpes vulpes ; Lepus americanus ; 3-methyl-3-butenyl methyl sulfide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract This study investigated the influence of the volatile constituents of red fox (Vulpes vulpes) urine in suppressing feeding by snowshoe hares (Lepus americanus) on coniferous tree seedlings. Pen and field bioassays indicated that the odor of fox urine and its principal component, 3-methyl-3-butenyl methyl sulfide, had a negative effect on feeding behavior of hares. The other sulfur-containing compounds, 2-phenylethyl methyl sulfide and 3-methylbutyl methyl sulfide, as well as six other constituents, were not effective. Synthetic urine mixtures composed of eight and nine volatile constituents, respectively, did not suppress feeding in pen bioassays. However, the mixture of eight compounds in a field bioassay did result in significantly fewer seedlings being eaten by hares than in the control. 3-Methyl-3-butenyl methyl sulfide may act as an interspecific chemical signal which induces a fear or avoidance response in hares. Additional work is required to determine the optimum concentration and release system for 3-methyl-3-butenyl methyl sulfide to be used as a mammalian semiochemical in crop protection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012105
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Influence of mustelid scent-gland compounds on suppression of feeding by snowshoe hares (Lepus americanus) (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1809-1821 
    Details
    ISSN: 1573-1561
    Keywords: Scent-gland compounds ; thietanes ; dithiolanes ; sulfur-containing compounds ; mustelids ; snowshoe hare ; lodgepole pine ; forestry ; crop protection ; feeding suppression ; interspecific communication ; kairomones ; Lepus americanus ; Pinus contorta
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract This study investigated the influence of mustelid anal-gland compounds in suppressing feeding by snowshoe hares on coniferous tree seedlings. Pen and field bioassays indicated that 3-propyl-1,2-dithiolane from the stoat (Mustela erminea), and secondarily, 2,2-dimethylthietane from the mink (M. vison) had a very negative effect on feeding behavior of hares. The major component of stoat anal gland secretions, 2-propylthietane, and the related compounds, thietane and 2-methylthietane, were not effective. 3,3-Dimethyl-1,2-dithiolane from the least weasel (M. nivalis) and ferret (M. putorius) and di-n-propyldisulfide (acyclic analog of 3-propyl-1,2-dithiolane) similarly did not affect hare feeding. 3-Propyl-1,2-dithiolane and 2,2-dimethylthietane (also found inM. erminea) may act as interspecific chemical signals which induce a fear or avoidance response in hares. Such compounds have outstanding potential as area repellents to reduce crop and livestock depredations. Our study reports one of the first practical utilizations of mammalian semiochemicals in crop protection and wildlife management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00987363
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...