Edge effect on carabid assemblages along forest-grass transects
نویسندگان
چکیده
منابع مشابه
Examining shifts in Carabidae assemblages across a forest-agriculture ecotone.
Northeastern U.S. farms are often situated adjacent to forestland due to the heterogeneous nature of the landscape. We investigated how forested areas influence Carabidae diversity within nearby crop fields by establishing transects of pitfall traps. Trapping extended across a forest-agriculture ecotone consisting of maize, an intermediate mowed grass margin, and a forest edge. Carabidae divers...
متن کاملAmmonia-oxidizing bacteria along meadow-to-forest transects in the Oregon Cascade Mountains.
Although nitrification has been well studied in coniferous forests of Western North America, communities of NH(3)-oxidizing bacteria in these forests have not been characterized. Studies were conducted along meadow-to-forest transects at two sites (Lookout and Carpenter) in the H. J. Andrews Experimental Forest, located in the Cascade Mountains of Oregon. Soil samples taken at 10- or 20-m inter...
متن کاملChanges in salt-marsh carabid assemblages after an invasion by the native grass Elymus athericus (Link) Kerguélen
As a result of an invasion by the native grass Elymus athericus (Link) Kerguélen (Poaceae) in the last 10 years, a major change in vegetation cover has occurred in salt marshes of the Mont Saint-Michel bay, Western France. The impact of such an invasion on carabid assemblages, a dominant group of terrestrial arthropods in these habitats and containing several stenotopic species, is investigated...
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In this work, we improve a previous minimalistic tree-grass savanna model by taking into account water availability, in addition to fire, since both factors are known to be important for shaping savanna physiognomies along a climatic gradient. As in our previous models, we consider two nonlinear functions of grass and tree biomasses to respectively take into account grass-fire feedbacks, and th...
متن کاملA Cable-Borne Tram for Atmospheric Measurements along Transects
A system to make atmospheric measurements from a moving trolley suspended by a stretched cable has been developed. At present, these measurements consist of wind velocity, temperature, humidity, and carbon dioxide concentration, though other sensors may be added. The track consists of cable segments attached to turns mounted on standard triangular towers. Using this approach, the path can be a ...
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ژورنال
عنوان ژورنال: Web Ecology
سال: 2001
ISSN: 1399-1183
DOI: 10.5194/we-2-7-2001