نتایج جستجو برای: transects
تعداد نتایج: 2740 فیلتر نتایج به سال:
A correction to this paper has been published: https://doi.org/10.1007/s10980-021-01213-x
during each event are also indicated. June 1982 to June 1983 (intense event, 1 transect); August 1986 to July 1987 (medium, 7 transects); October 1991 to May 1992 (marginal intensity, 2 transects); October 1992 to October 1993 (marginal, 3 transects); April 1994 to June 1995 (marginal, 8 transects); and April 1997 to April 1998 (intense, 15 transects). 12. To test biases caused by undersampling...
A survey of blue oak stands in four southern Sierra areas indicated there was a substantial number of seedlings and mature trees, but there were considerably fewer trees in the sapling and pole size class. These differences prompted a long-term survival study. After 6 years, 68.5 percent of the trees were still present and had grown 0.02 inches. A study of aging seedlings showed that the percen...
Plant-pollinator interactions are key components of ecosystem functioning and therefore increasingly studied. Of all the approaches used to estimate these interactions, capture pollinators along transects is a widely recognized method. However, specific choices sampling design can strongly influence observations insect visits bias ecological interpretations. Yet, there no agreement on best tran...
A one-year study (May 2007-April 2008) was undertaken to identify the echinoid species of intertidal sandy and rocky shores of the Qeshm Island. An intertidal sandy location and a rocky shore were surveyed in southern coasts of Qeshm Island, in northern Persian Gulf. Specimens were monthly collected along two 30m wide by 30 60m long (according to the tidal range) transects located approximately...
Repeated transects have become the backbone of spatially distributed ice and snow thickness measurements crucial for understanding mass balance. Here we detail at Multidisciplinary drifting Observatory Study Arctic Climate (MOSAiC) 2019–2020, which represent first such collected across an entire season. Compared with similar historical transects, MOSAiC was thin (mean depths approximately 0.1–0...
Seismic lines are linear clearings created for oil and gas exploration. Regeneration on seismic in Alberta's boreal forest is limited by slow natural recovery, making them persistent features the landscape prompting interest line restoration through vegetation reestablishment. The goal of this study was to establish an effective woody sampling method monitoring regeneration mixedwood forests. D...
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