Abstract When populations become geographically isolated, they begin to diverge in various traits and at variable rates. The dynamics of such trait divergences are relevant for understanding evolutionary processes as local adaptation speciation. Here we examine sperm body structures a polygynandrous songbird, the alpine accentor (Prunella collaris) between two allopatric high-altitude populatio...

Abstract New occurrences of flask-shaped and envelope-bearing microfossils, including the predominantly Cambrian taxon Granomarginata , are reported from new localities, as well earlier in time (Ediacaran) than previously known. The stratigraphic range extends into System, where it had a cosmopolitan distribution. This newly Ediacaran record includes areas Norway (Baltica), Newfoundland (Avalon...

The present research describes the histology of the midgut, gastric caeca, and pyloric valve of Tropidacris collaris (Stoll, 1813), (Orthopetera: Romaleidae). We used light microscopy, staining (Gomori's trichrome and periodic acid-Schiff (PAS)), and a routine histological analysis method (hematoxilin-eosin). The insects were obtained from, and also bred in, the Laboratory of Entomology, Depart...

Abstract Background The diamondback moth (DBM), Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a serious and economically important pest of crucifers in Delhi, India. Larvae pupae the were collected from cabbage, cauliflower broccoli crops grown vegetable fields at farm ICAR-Indian Agricultural Research Institute (ICAR-IARI), New Delhi-110012, December 2021 to June 2022. larvae transfe...