Now showing items 2121-2128 of 2128
The prey attack behavior of achaearanea tesselata (araneae, theridiidae)
The attack behavior of the cobweb spider Achaearanea tesselata (Keyserling 1884) is roughly separated into three sequential steps: descend from the suspended retreat, pass through the sheet threads, and wrap the prey from ...
Environmental rugosity, body size and access to food: a test of the size-grain hypothesis in tropical litter ants
In terrestrial walking organisms, long legs help to decrease the cost of running, allowing animals to step over environmental interstices rather than walking through them. However, long legs can complicate the infiltration ...
First Breeding Record of Wilson’s Plover (Charadrius wilsonia) from the Pacific Coast of Colombia
Wilson’s Plover (Charadrius wilsonia) occurs year-round along the Caribbean and Pacific coasts of Colombia. The species frequents a variety of coastal habitats including sandy beaches, tidal flats, and small swamps and ...
The mystery of how spiders extract food without masticating prey
Standard accounts of how spiders obtain food without masticating their prey are probably largely wrong. Species in the families Uloboridae, Thomisidae, Araneidae and Theridiidae do not inject digestive fluid into the prey’s ...
Seed dissemination by frugivorous birds from forest fragments to adjacent pastures on the western slope of Volcán Barva, Costa Rica
Logging, cattle raising, and agricultural activities have caused the destruction of most forested áreas in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of montane forest. ...
Freeze-dried snake antivenoms formulated with sorbitol, sucrose or mannitol: Comparison of their stability in an accelerated test
Freeze-drying is used to improve the long term stability of pharmaceutical proteins. Sugars and polyols have been successfully used in the stabilization of proteins. However, their use in the development of freeze-dried ...