cytogenetic approaches are used in systematic studies implying differences between species and variation between populations. in this study, morphology of chromosomes and chromosome number of 210 specimens of 23 rodent species from different localities of iran were investigated. specimens belong to five families comprising dipodidae (allactaga elater (2n=48, fna=92); a. williamsi (2n=48, fna=92...

Daily injections of L-dihydroxyphenylalanine (L-DOPA, dopamine precursor) given 4 h after 5-hydroxytryptophan (5-HTP, serotonin precursor) induced inhibitory responses in recrudescing gonad (in the first week of December) of Indian palm squirrel, a seasonally breeding subtropical animal. Other temporal relations (L-DOPA given at 0, 8, 12, 16, and 20 h after 5-HTP administration) did not show an...

We report the first observations of feeding behaviour Dusky-striped Squirrel Funambulus sublineatus in Western Ghats. It was observed on eight plant species, including four non-native species. Feeding forests as well plantations and agricultural habitats, indicating urgent need for studies such human-modified landscapes.

The differential effect of long (LD; 16 : 8 h light/dark), short (SD; 10 : 14 h light/dark) and natural day length (NDL; 12 : 12 h light/dark) during the reproductively inactive (RIP) and active (RAP) phases was assessed in relation to immunity and reproductive function of a tropical rodent Funambulus pennanti. They presented high immunity and low testicular activity during RIP and an opposite ...

Cadmium acetate exposure revealed lung lesions by a single i.t. injection (8.0 mg Cd/Kg) ; and adrenal and spleen lesions by a single i.p. injection (6.0 mg Cd/Kg) in male laboratory-bred squirrels after different intervals of the weeklong study. The squirrels after i.t. injection did not show any pathological change in adrenal and spleen. However, lung showed emphysematous changes and peribron...