scholarly journals ContraPest®, a New Tool for Rodent Control

2018 ◽  
Vol 28 ◽  
Author(s):  
Brandy , R. Pyzyna ◽  
Nicholas , F. Trulove ◽  
Clayton , H. Mansfield ◽  
Ryan , A. McMillan ◽  
Courtney, N. Ray ◽  
...  
Keyword(s):  
Rodent Control

THE 1951 AERIAL BAITING AND SEEDING PROJECT, ASH RIVER TRACT, MacMILLAN AND BLOEDEL LIMITED

1955 ◽  
Vol 31 (1) ◽  
pp. 45-59 ◽  
Author(s):  
G. S. Allen ◽  
I. K. Barber ◽  
Ian Mahood
Keyword(s):  
West Coast ◽  
Forest Service ◽  
Douglas Fir ◽  
Western Hemlock ◽  
Local Distribution ◽  
Rodent Control ◽  
Buffer Strip ◽  
Minimum Standards ◽  
Service Standards ◽  
Forestry Practice

An area of 738 acres about 20 miles north and west of Port Alberni on Vancouver Island was seeded by helicopter to Douglas fir (1/2 pound per acre) and western hemlock (1/5 pound per acre) in November 1951. One week earlier this area and a surrounding buffer strip, totalling 1760 acres, had been baited by helicopter using wheat treated with thallous sulphate and "1080".Baiting was successful and the roden:trap ratio dropped from 1:4.6 to 1:94.3 as a result. By April the ratio had climbed again to 1:18.7. By the first week of June 1952, a total of about 1400 Douglas fir and 840 hemlock had germinated per acre. By November 1952, this had dropped to 1000 Douglas fir and 198 hemlock per acre. A final extensive survey in June 1954, showed a total of 730 Douglas fir and 57 hemlock of the 1952 crop per acre with a milacre stocking of 42.0 percent for Douglas fir and 43.9 percent for Douglas fir and hemlock. The 4-milacre stocking due to the 1952 Douglas fir seedlings was 78.3 percent. Practically all of the seedlings that germinated in 1952 are attributed to the seeding operation because of the relatively uniform distribution of seedlings and the lack of seedlings on the control area.The seeding operation in itself restocked 628 acres to B.C. Forest Service minimum standards (31 percent by 1-milacres). It restocked 708 acres to U.S. "medium" or "good" standards. With natural trees included, only 28 acres are below B.C. Forest Service standards, and 6 acres below U.S. "medium" stocking. Total stocking, including natural trees, is 59.3 percent by 1-milacres and 88.6 percent by 4-milacres.The baiting and seeding operation can be considered highly successful. The surviving Douglas firs are healthy and vigorous and show little deer or grouse damage to date. Distribution of the seedlings is good and most gaps that occurred are believed due to uneven local distribution of seed. Considering that this experiment was carried out on a rather steep south exposure and that the first summer following seeding was unusually hot and dry, the satisfactory results suggest that direct seeding following rodent control has a definite place in West Coast forestry practice. It may well take the place of more expensive and troublesome planting on many areas that are slow to restock.

scholarly journals Prevalence and risk factors for Toxoplasma gondii infection in certified and non-certified pig breeding farms in the Toledo microregion, PR, Brazil

2010 ◽  
Vol 19 (3) ◽  
pp. 152-156 ◽  
Author(s):  
Piassa Franciele Rossandra ◽  
Jacqueline Baptista de Araújo ◽  
Ronaldo César da Rosa ◽  
Rodrigo José Mattei ◽  
Rodrigo Costa da Silva ◽  
...  
Keyword(s):  
Risk Factors ◽  
Toxoplasma Gondii ◽  
Human Infection ◽  
Control Measures ◽  
Rodent Control ◽  
Reproductive Disorders ◽  
Toxoplasma Infection ◽  
Pork Products ◽  
Toxoplasma Gondii Infection ◽  
Breeding Farms

Toxoplasma gondii infection has been diagnosed in pigs all over the world. Economical losses are generally related to reproductive disorders. Toxoplasma infection is also a matter of public health because tissue cysts of the parasite may remain in pork and pork products, and become sources of human infection. The objective of this study was to evaluate the frequency and risk factors associated with Toxoplasma infection in certified and non-certified pig breeding farms in the Toledo microregion, in the State of Paraná, Brazil which includes the cities of Toledo, Nova Santa Rosa, Sao José das Palmeiras and Sao Pedro do Iguaçu. Relative frequency of infection was 13.4%, independently of the type of farm. Logistic regression analysis showed that the following factors were associated with infection: absence of workers exclusive for each area of the farm, access of other animals to feeders and drinkers, lack of lids in drinkers, lack of rodent control measures, mean piglet number and weight at weaning per female.

Pilot rodent control studies in rice fields in Sind, using five rodenticides

1976 ◽  
Vol 3 ◽  
pp. 119-130 ◽  
Author(s):  
J.H. Greaves ◽  
M.A. Choudry ◽  
A.A. Khan
Keyword(s):  
Rice Fields ◽  
Rodent Control

Arenaviruses

2010 ◽  
pp. 588-595
Author(s):  
J. ter Meulen
Keyword(s):  
Rna Viruses ◽  
Dust Particles ◽  
Rodent Control ◽  
Highly Pathogenic

Arenaviruses are zoonotic RNA viruses that are distributed worldwide and are adapted to various rodent genera. Some are highly pathogenic and cause haemorrhagic fevers that are endemic in restricted regions of a few countries. Humans are thought to become infected mainly through inhalation of aerosolized rodent urine or dust particles to which infectious urine has dried, or by ingestion of contaminated foodstuff: prevention therefore depends on rodent control and avoidance of contact with rodents, their excreta, and nesting materials....

scholarly journals Breeding Biology and Success of a Reintroduced Population of the Critically Endangered Puaiohi (Myadestes Palmeri)

The Auk ◽  
2006 ◽  
Vol 123 (3) ◽  
pp. 753-763 ◽  
Author(s):  
Erik J. Tweed ◽  
Jeffrey T. Foster ◽  
Bethany L. Woodworth ◽  
William B. Monahan ◽  
Jherime L. Kellerman ◽  
...  
Keyword(s):  
First Record ◽  
Nesting Success ◽  
Breeding Biology ◽  
Rodent Control ◽  
Breeding Behavior ◽  
Adult Females ◽  
In The Wild ◽  
Daily Nest Survival ◽  
High Predation ◽  
Reintroduced Population

Abstract The ultimate success of reintroduction programs for endangered species depends on the ability of reintroduced animals to breed in the wild. We studied the nesting success and breeding biology of a reintroduced population of Puaiohi (Myadestes palmeri) on the island of Kaua'i, Hawaii. Thirty-four captive-bred Puaiohi were released into the Alaka'i Swamp in 1999-2001 and monitored using radiotelemetry. Ten females and two males paired with wild and other released birds, including one polygynous trio. From March to September, 31 nests were built. Mean clutch size was 2.0 eggs, daily nest survival was 0.97 ± 0.01 (mean ± SE) and overall nest success was 0.40 ± 0.02. We confirmed predation, most probably by rats (Rattus spp.), as the greatest cause of nest failure, occurring at 38% of active nests with known fates, and causing the death of two nesting adult females. Ground-based rodent control proved ineffective at protecting nest attempts. Successful nests fledged an average of 1.4 young each (n = 10), and 85% of fledglings survived at least two weeks. Importantly, breeding behavior and success were comparable to those of wild Puaiohi. This is the first record of breeding in the wild from captive-bred endangered Hawaiian passerines. The ability of captive-bred Puaiohi to survive and breed successfully in the wild bodes well for future releases of this and other endangered passerines, but high predation rates on nests and nesting females highlights the importance of maintaining and restoring safe habitat for recovery. Biología y Éxito Reproductivo de una Población Reintroducida de Myadestes palmeri, una Especie en Peligro Crítico

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