Our objective was to evaluate the effects of burrowing activities by banner-tail kangaroo rats (Dipodornys spectabilis Merriam) on plant community structure and species dominance for two patch types at the ecotone between shortgrass steppe and desert grassland in New Mexico, USA. 10mounds produced by kangaroo rats were selected in patches dominated by Bo~ireloua gracilis (the dominant in shortg...

Mountain ecosystems are particularly sensitive to climate change, which in part causes encroachment of woody plants at the treeline ecotone, with repercussions on advance and ecosystem carbon balance. Yet, studies investigating long-term trends radial growth as well year-to-year response several tree shrub species change scarce, especially Pyrenees where dendroecological hitherto critically lac...

Strix huhula Daudin, 1800 is widely distributed species of owl in the Neotropical region. However, this considered rare nature due to its dependence on forested habitat and low adaptive capacity survive anthropogenic environments. There are scattered records throughout Brazil. Here, we provide first record S. a savanna–dry forest ecotone Piauí state. This expands geographic...

Forest plantations mitigate environmental problems and favor lowcarbon economies, but the growing demand for wood is driving accelerated expansion of monocultures that are potentially harmful to biological diversity. In this research, compatibility between taxonomic diversity vascular plants timber production Pinus ponderosa was evaluated in stands with three levels canopy cover, located steppe...

To examine Late Quaternary vegetation change across the modern vegetation gradient from continuous boreal forest (central Alaska) to Betula shrub tundra (Bristol Bay region), pollen records from Idavain and Snipe Lakes are described and compared to those of four other sites in southwest Alaska. Major features of the vegetation history at Idavain Lake include herb-dominated tundra (ca. 14}12 ka ...

the diversity and distribution of the rotifers family notommatidae was studied in the northwest, the south and the southwest of iran. in total, 29 species were identified, of which, 25 are new records for the country. new records include the following species: cephalodella forficata, c. cf. mus, c. vittata, c. ventripes, c. lepida, c. inquilina, c. gibboides, c. tincaformis , c. obvia, c. stere...