Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Species Composition, Population Fluctuation and Their Habitat Use of Rice Land Mammals in Rice Based Agro-ecosystem at Comilla and Feni.

Dr. N. Q. Kamal
CSO and Head
Entomology Division, BRRI, Gazipur-1701

Md. Mofazzel Hossain
Scientific Officer
Entomology Division, BRRI, Gazipur-1701

Abstract/ Executive Summary:

Study to observe the abundance of different species of rats in different habitats of six village of Feni and Comilla district revealed that rat activities increased before and after harvesting of T. Aman and Boro crop. Bandicoot rat became abundant in the flooded or wet environment while Rattus sp. in non-flooded situations. Maximum number of rats captured from the house habitat than the other habitats. Trap success in house habitat was 77.21% higher than the other habitats (in combine). R. rattus and B. bengalensis were the most common rodent species found in all habitats except riverbank. Mus musculus, R. exulans, & M. terricolor were only found in house habitat whereas B. indica was found in moist habitat of pond bank, vegetable, roadside and few in irrigated habitat. The abundance of different species in house habitat in different months indicated that species activities /trap success increased in that habitat before and after the harvesting of T.Aman and Boro rice but their activity decreased during the harvesting period.

Keywords: Species composition, Population fluctuation, Habitat , Agro-ecosystem

Location: Comilla and Feni

Start Date: 01-07-2002

End Date: 30-06-2003

Program Area: Pest Management

Commodity: Rats

Objectives:

To know the species composition, population fluctuation and their habitat use of rice land mammals in rice based agro-ecosystem at Comilla and Feni

Methodology:

Research trials involving six villages i.e., four villages (Jakanipara, Anandapur, Sowara and Shahapur) in Comilla district and two villages (Nasirgram and Bathania) in Feni district were selected through PRA for conducting this experiment during the period of August 2002 to July 2003. The selected areas were rice based agro-ecosystem and more or less similar in cropping pattern. Six habitats were selected in each village for this experiment. These habitats were house, rainfed rice, irrigated rice, vegetables, pond bank, roadside and riverbank. "kill traps" were used in the houses and "live traps" were used for other habitats. Twenty traps were used per night for each habitat and the trapping continued for four consecutive nights. Two villages were trapped in a week. So, trapping continued for two weeks in Comilla and one week in Feni. Traps were checked every morning. Each of the captured animals was identified, weighed, measured and autopsied for getting reproductive information and others. As this study is in progress, the purpose is - to study the species composition of the rodents inhabiting in the rice-field of six selected villages; to compare the rate of capture rats in different habitat and to examine the population fluctuation of the common species in relation to their habitat use.

Source of Information: Proceedings of BRRI Annual Internal Review for 2002-2003

Article Link (Online Journal):

Funding Source:

1. World Bank

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Only three major species of rodents i.e., Rattus rattus (423), B. bengalensis (143) and M. musculus (512 )were found in the house habitat. The trap success for Suncus murinus in house habitat ranges from 2%-18%. Their captured were decreased in the month of Nov/02, Feb/03 & May/03 and increased in Sept/02 & Dec/02 and again in Mar/03 and in July/03.. Mus musculus, R. exulans and M. terricolor were only found in house habitat. This habitat was mostly used by S. murinus (22) followed by B indica (4), B. bengalensis(2) and R. rattus (1). The trap success for pond bank habitat ranges from 0 to 2.25% . This habitat was mostly used by R. rattus (19), B. indica (14) and S. murinus (13). Rest of the species was absent from this habitat. Only one R. rattus and two S. murinus were captured in River Bank habitat. The trap success in roadside habitat was ranges from 0 to 2.2% . The species captured from this habitat were R. rattus (10), B. indica (5). B. bengalensis (2) and S. murinus (22). Trap success for S. murinus was heighest in Dec/02 and decreased almost zero in February, April, May and July/03.

Knowledge Management: Report/Proceedings