Rodent Damage and Burrowing Characteristics in Bangladesh Wheat Fields

Poché, Richard M.; Mian, M. Y.; Haque, Md. Emdadul; Sultana, Parvin

doi:10.2307/3808416

Cited by 38 publications

(21 citation statements)

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“…Empirical evidence to support this body of theory is limited, but research examining the relationship between density and impact of crop pest species in agricultural and forestry systems has shown both linear (Poché et al 1982;Parsons et al 2005) and nonlinear relationships (Liebhold et al 1993;Nava-Camberos et al 2001;Brown et al 2007). Together, this body of ecological theory and the empirical results from agricultural and ecological studies suggest that per capita impacts are not constant, and that the utility of this framework for assessing impacts of early-stage invasion is severely limited.…”

Section: Introductionmentioning

confidence: 91%

Linear and non-linear impacts of a non-native plant invasion on soil microbial community structure and function

Elgersma

Ehrenfeld

2010

Biol Invasions

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Biological invasions can alter ecosystem functions such as litter decomposition and nutrient cycling, but little is known about how invader abundance influences the impact on the ecosystem. It is often assumed that impacts are proportional to invasion density, but this assumption has never been tested and has little justification. We tested the hypothesis that the microbial community structure and function of a mixed hardwood forest soil changed after invasion by Japanese barberry (Berberis thunbergii), an invasive shrub commonly found in eastern hardwood forests, and that changes were proportional to the density of invasion. We constructed microcosms with mixtures of native and invasive leaf litter, and measured microbial community structure (phospholipid fatty acids) and function (litter decomposition). Decomposition was linearly related to the degree of invasion (R 2 = 0.945), but the ratio of bacteria to fungi exhibited a strongly non-linear, threshold response (R 2 = 0.513). These results indicate that impacts of Japanese barberry invasion are not always proportional to invasion density. This finding has implications for the study of biological invasions as well as practical implications for the management of exotic invasive species.

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Section: Introductionmentioning

confidence: 91%

Linear and non-linear impacts of a non-native plant invasion on soil microbial community structure and function

Elgersma

Ehrenfeld

2010

Biol Invasions

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“…The distribution of the greater bandicoot rat (B. indica) was more restricted to seasonally flooded areas at the Mirzapur site. The short-tailed mole rat (Nesokia indica) occurred only at the Ishurdi site (Poché et al 1982). The roof rat (Rattus rattus) was common throughout the country but restricted to patches of dense vegetation (e.g., clusters of trees, vines, or sugarcane) in which it can climb and seek cover (Chandrasekar-Rao and Sunquist 1996).…”

Section: Study Sitesmentioning

confidence: 99%

“…Bandicoot rats are the most common rat in cultivated cereals and pulses throughout Bangladesh. Through the use of underground burrow systems (Poché et al 1982) they are able to exist in cultivated areas where vegetative cover provided by crops is insufficient protection from predators. Each adult establishes a separate burrow system in which it caches ripening panicles, allowing it to remain underground for extended periods (Sultana and Jaeger 1992).…”

Section: Prey Basementioning

confidence: 99%

Daytime cover, diet and space-use of golden jackals (Canis aureus) in agro-ecosystems of Bangladesh

et al. 2007

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Golden jackals are locally common in Bangladesh despite intensive cultivation and high human densities. We studied the relative importance of seasonal flooding, rodent prey-base, and daytime cover on the occurrence of golden jackals in the two major agro-ecosystems in Bangladesh, one with annual monsoon flooding and the other without. Jackals were less common throughout the year where floodwaters occurred that would have excluded them for 1-3 months during their pup-rearing season. Diets of jackals were similar in the two agro-ecosystems. Rodents were the most common food type in scats throughout the year. The occurrence of burrowing rats in scats peaked seasonally when these rats were most concentrated in ripening cereals, suggesting that jackals are beneficial for rat control. Radiotelemetry of seven jackals in the non-flooded agro-ecosystem over an 11-month period indicated that sugarcane was the preferred type of daytime cover, despite representing only 2-4% of the area. There was a day-to-day return rate of 67% to the same 1-ha patch of cover. Evidently, sugarcane provides daytime cover for avoiding humans and for feeding on roof rats (Rattus rattus), which concentrate in this crop. Evidence suggests that breeding pairs of jackals were annual residents that defended cover (average of 37.3 ha) but not foraging areas beyond.

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“…This indicates that the effect of treatments conducted in one season persists in the next crop season as well. The damage to wheat at Srinagar is much less in comparison to 12% in Bangladesh (Poche et al, 1979). Sood and Guraya (1976) also reported a damage of 3-59-9-30% of wheat in different parts of India.…”

Section: Damagementioning

confidence: 92%

“…Rodents are serious pest to wheat crop throughout southern Asia causing a damage of 3-5-12% (Bindra and Sagar, 1968;Sood and Guraya, 1976;Poche et al, 1979;Ahmad, 1986). In developing countries an acute rodenticide zinc phosphide is commonly used to control rodents.…”

Section: Introductionmentioning

confidence: 98%

Rodenticidal baitings in wheat fields of the Garhwal Himalayas

Ahmad

Sheikher

Guraya

1989

Tropical Pest Management

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Ten replicated trials, in which 2.4% zinc phosphide, 0.005% brodifacoum and 0.005% bromadiolone were used to control rodents, were carried out in wheat fields. Single grid baiting with zinc phosphide followed by a baiting with brodifacoum or double baiting with brodifacoum or bromadiolone resulted in 89-93% rodent mortality. The pre-flowering and flowering stages of wheat crop appeared to be more suitable for rodenticidal treatments than maturity stage; moist bait of bromadiolone produced considerable rodent mortality (64.67%) in maturing wheat. Rodents cut 8.08% tillers equivalent to a loss of 225.59 kg/ha wheat. Double rodenticidal treatments saved yield loss from 151.76 to 176.89 kg/ha resulting in cost benefit ratio of 1:19 to 1:28. In wheat fields where rodents were killed in previous rainy season crops the population of rodent burrow-opening was very low varying from 14.42 to 18.92/ha. Burrow baiting trials in these wheat fields proved that rodenticidal treatments can be carried out profitably even at 2.22% level of damage.3 ha. In first three trials, two baitings were used, one at pre-flowering stage of the crop and the second at flowering stage. Trials 4-6 were carried out in the fields where rodenticidal treatments were also conducted in the previous rainy season crops (Table 1).

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Rodent Damage and Burrowing Characteristics in Bangladesh Wheat Fields

Cited by 38 publications

References 0 publications

Linear and non-linear impacts of a non-native plant invasion on soil microbial community structure and function

Linear and non-linear impacts of a non-native plant invasion on soil microbial community structure and function

Daytime cover, diet and space-use of golden jackals (Canis aureus) in agro-ecosystems of Bangladesh

Rodenticidal baitings in wheat fields of the Garhwal Himalayas

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