Repellency and choice: feeding responses of wild rats (Rattus norvegicus) to cinnamic acid derivatives

Crocker, D.R.; Scanlon, Clare B.; Perry, Susan M.

doi:10.1016/0168-1591(93)90042-n

Cited by 13 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding chemical repellents, they did not have any noticeable effect on discouraging seed predators, particularly rodents, opposite to reports by some studies [43][44][45]. A possible explanation for this contradictory result could be that the rodents in Taiwan (e.g., red-bill squirrel or stripe squirrel) have a high tolerance to the food they eat [46,47].…”

Section: Preventing Seed Predationcontrasting

confidence: 53%

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Lin

et al. 2018

Forests

View full text Add to dashboard Cite

Abstract:To facilitate the reintroduction of five native late-successional Taiwanese Fagaceae species into Japanese cedar (Cryptomeria japonica (D.) Don) plantations, we experimented with methods to alleviate their establishment limitations. We tested different combinations of tree species, seedling development stages, and site preparation techniques. First, we directly sowed both fresh and germinated acorns under both closed and opened (thinned) canopies. Both fresh and germinated acorns survived only six months at most. Wildlife consumption was the most critical factor hindering their survival. We subsequently experimented with different methods for increasing establishment rates, such as thinning in combination with understory control, applying chemical animal repellents to seeds, using physical barriers against seed predators, and using seedlings of different ages. Among the methods experimented, none was effective. The effects of silvicultural treatments to deter seed consumption lasted only the first few weeks after sowing, whereas the effects of physical barriers were inconsistent. We also tested planting 3-month and 1-year-old seedlings. Seedling survival after 9 months was about 20% on average for 3-month-old seedlings but reached 80% for 1-year-old seedlings. Our results suggest that planting seedlings older than six months or establishing physical obstacles to prevent seed predation will be the most effective strategies to reintroduce late-successional hardwood Fagaceae species into Japanese cedar plantations.

show abstract

Section: Preventing Seed Predationcontrasting

confidence: 53%

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Lin

et al. 2018

Forests

View full text Add to dashboard Cite

show abstract

“…Previous published studies on both birds and rats have generally not acknowledged this problem 8. 15, 20, 22, 23 Animals are considered to be less sensitive to concentration effects in no‐choice than in choice experiments 26. However, in general, if a compound is repellent in a no‐choice test, it will also be repellent in a choice test and in the field 26.…”

Section: Methodsmentioning

confidence: 99%

“…However, at certain concentrations, some bird repellents also repel rodents. For example, food treated with 5 g kg −1 of cinnamamide repelled wild Norway rats in both choice and no‐choice tests 22. Food treated with 5 g kg −1 of dimethyl anthranilate repelled voles ( Microtus pennsylvanicus Ord) in a choice test23 but not wild Norway rats 22.…”

Section: Introductionmentioning

confidence: 99%

“…For example, food treated with 5 g kg −1 of cinnamamide repelled wild Norway rats in both choice and no‐choice tests 22. Food treated with 5 g kg −1 of dimethyl anthranilate repelled voles ( Microtus pennsylvanicus Ord) in a choice test23 but not wild Norway rats 22. Mice ( Mus musculus L) drank significantly less water when either 10 g kg −1 of methyl anthranilate or 10 g kg −1 of ortho ‐aminoacetophenone was added (in a no‐choice test),24 and ate significantly less food when as little as 1 g kg −1 of cinnamamide was added (also in a no‐choice test) 25.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Palatability of bird repellents to Rattus norvegicus

Spurr¹,

Porter²,

Thomson³

2001

Pest Management Science

View full text Add to dashboard Cite

The palatability to captive, mostly laboratory-bred, Norway rats (Rattus norvegicus) of cereal-based baits containing 0.02 g kg-1 brodifacoum, with and without bird-repellent additives, was compared in a no-choice experimental design. Methyl anthranilate (25 g kg-1), dimethyl anthranilate (25 g kg-1) and cinnamamide (2.5 g kg-1) reduced bait consumption by the rats, but all except one rat ate enough bait to receive a lethal dose. Cinnamamide (1 g kg-1), ortho-aminoacetophenone (0.1 g kg-1) and tannic acid (20 g kg-1) did not reduce bait consumption and all rats died after eating baits. The concentration of cinnamamide palatable to rats has only a low and short-lived repellency to birds, so it does not warrant further investigation. However, ortho-aminoacetophenone and tannic acid should now be field-tested for palatability to all three rat species in New Zealand and for repellency to native New Zealand birds.

show abstract

“…Relative to rats fed bait without bird repellent, the amount of bait eaten was significantly reduced on the first test day and across all 3 days at 0.25%, but not 0.1%, cinnamamide; neither cinnamamide concentration affected bait lethality. Crocker et al (1993b) also found cinnamamide reduced food consumption of wild Norway rats at concentrations of 0.5% mixed into ground food pellets in both two-choice and nochoice trials, although in the no-choice trial consumption had increased after 3 days. House mice (Mus musculus) are repelled by cinnamamide at concentrations of 0.1-0.8% w/w (Gurney et al 1996).…”

Section: Cinnamamidementioning

confidence: 99%

Repellents with potential to protect kea and other native birds from aerial poisoning for possum and rat control

Cowan¹,

Booth²,

Crowell³

2016

NZ J Ecol

View full text Add to dashboard Cite

Concern about non-target risks to native birds, particularly kea (Nestor notabilis), from aerial poisoning has prompted the evaluation of potential repellent compounds that could be incorporated into the cereal pellet bait used for possum (Trichosurus vulpecula) and rat (Rattus spp.) control. Initial trials of d-pulegone and anthraquinone were not wholly successful, with the former having poor stability in bait and the latter reducing bait uptake by rats. While research to stabilise d-pulegone in bait remains an option, a review of alternative compounds was undertaken to assist with decision-making about future directions for research, including consideration of possible formulation issues and cost. Most of the information reviewed related to use of repellents for crop protection where the aim is to reduce economic loss rather than prevent feeding on the crop, whereas preventing feeding is the primary aim for native bird protection. A further constraint was the lack of information for many compounds on response of rodents and possums. Cinnamamide, tannic acid, caffeine, garlic oil, ortho-aminoacetophenone, and thiram were identified as possible candidates and evaluated in relation to their potential to repel native birds from eating cereal baits without affecting efficacy for possums and rats. Cinnamamide, caffeine, and thiram, while effective as bird repellents, are likely to be repellent to rats at concentrations suitable for use with native birds, including kea. The little information found suggested that garlic oil was repellent to birds; it has not been formally tested on possums and rats, but anecdotal evidence did not suggest strong aversion. Ortho-aminoacetophenone appears effective as a bird repellent, but its repellency for possums and rats requires clarification. Tannic acid has some efficacy as a bird repellent, and is not repellent to possums and rats at lower concentrations. It is not clear if tannic acid exerts its effect solely as a primary repellent or whether it also has secondary repellent effects. In order from most to least promising, tannic acid, ortho-aminoacetophenone, and garlic oil are worthy of further investigation. Because each compound has demonstrated some efficacy as a bird repellent, initial testing should focus on screening against possums and rats.

show abstract

Repellency and choice: feeding responses of wild rats (Rattus norvegicus) to cinnamic acid derivatives

Cited by 13 publications

References 8 publications

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Bringing the Natives Back: Identifying and Alleviating Establishment Limitations of Native Hardwood Species in a Conifer Plantation

Palatability of bird repellents to Rattus norvegicus

Repellents with potential to protect kea and other native birds from aerial poisoning for possum and rat control

Contact Info

Product

Resources

About