The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Ben Wielstra - One of the best experts on this subject based on the ideXlab platform.
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spring migration patterns habitat use and stopover Site Protection status for two declining waterfowl species wintering in china as revealed by satellite tracking
Ecology and Evolution, 2018Co-Authors: Wenyuan Zhang, Ben Wielstra, Jie Wei, Guanhua Liu, Hao Luo, John Y Takekawa, Sivananintha Balachandran, Tao ZhangAbstract:East Asian migratory waterfowl have greatly declined since the 1950s, especially the populations that winter in China. Conservation is severely hampered by the lack of primary information about migration patterns and stopover Sites. This study utilizes satellite tracking techniques and advanced spatial analyses to investigate spring migration of the greater white-fronted goose (Anser albifrons) and tundra bean goose (Anser serrirostris) wintering along the Yangtze River Floodplain. Based on 24 tracks obtained from 21 individuals during the spring of 2015 and 2016, we found that the Northeast China Plain is far-out the most intensively used stopover Site during migration, with geese staying for over 1 month. This region has also been intensely developed for agriculture, suggesting a causal link to the decline in East Asian waterfowl wintering in China. The Protection of waterbodies used as roosting area, especially those surrounded by intensive foraging land, is critical for waterfowl survival. Over 90% of the core area used during spring migration is not protected. We suggest that future ground surveys should target these areas to confirm their relevance for migratory waterfowl at the population level, and core roosting area at critical spring-staging Sites should be integrated in the network of protected areas along the flyway. Moreover, the potential bird–human conflict in core stopover area needs to be further studied. Our study illustrates how satellite tracking combined with spatial analyses can provide crucial insights necessary to improve the conservation of declining Migratory species.
Joshua A. Jadwin - One of the best experts on this subject based on the ideXlab platform.
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SH2 Binding Site Protection Assay: A Method for Identification of SH2 Domain Interaction Partners by Exploiting SH2 Mediated PhosphoSite Protection.
Methods in molecular biology (Clifton N.J.), 2017Co-Authors: Joshua A. JadwinAbstract:Over the last two decades there has been a significant effort in the field to characterize the phosphoSite binding specificities of SH2 domains with the goal of deciphering the pY signaling code. Although high throughput studies in various formats using most SH2 domains have collectively provided a rich resource of in vitro SH2-pTyr Site specificity maps, this data can only be used approximate what is happening in the cell where protein concentrations and localization are not homogenous, as they are for in vitro experiments. Here we describe an in vivo approach, SH2 Site Protection assay, which can capture the pTyr binding specificity of SH2 domains in the cell. The basis of this approach is SH2-pY Site Protection, the ability of SH2 domains to prevent the PTP-dependent dephosphorylation of their pY Site binding partners. We overexpress a tracer SH2 domain in cells and quantify the change in abundance of tyrosine phosphorylated Sites using MS. Since the method is performed in vivo, it has the advantage of identifying SH2-pY interactions as they occur within in the cell.
Tao Zhang - One of the best experts on this subject based on the ideXlab platform.
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spring migration patterns habitat use and stopover Site Protection status for two declining waterfowl species wintering in china as revealed by satellite tracking
Ecology and Evolution, 2018Co-Authors: Wenyuan Zhang, Ben Wielstra, Jie Wei, Guanhua Liu, Hao Luo, John Y Takekawa, Sivananintha Balachandran, Tao ZhangAbstract:East Asian migratory waterfowl have greatly declined since the 1950s, especially the populations that winter in China. Conservation is severely hampered by the lack of primary information about migration patterns and stopover Sites. This study utilizes satellite tracking techniques and advanced spatial analyses to investigate spring migration of the greater white-fronted goose (Anser albifrons) and tundra bean goose (Anser serrirostris) wintering along the Yangtze River Floodplain. Based on 24 tracks obtained from 21 individuals during the spring of 2015 and 2016, we found that the Northeast China Plain is far-out the most intensively used stopover Site during migration, with geese staying for over 1 month. This region has also been intensely developed for agriculture, suggesting a causal link to the decline in East Asian waterfowl wintering in China. The Protection of waterbodies used as roosting area, especially those surrounded by intensive foraging land, is critical for waterfowl survival. Over 90% of the core area used during spring migration is not protected. We suggest that future ground surveys should target these areas to confirm their relevance for migratory waterfowl at the population level, and core roosting area at critical spring-staging Sites should be integrated in the network of protected areas along the flyway. Moreover, the potential bird–human conflict in core stopover area needs to be further studied. Our study illustrates how satellite tracking combined with spatial analyses can provide crucial insights necessary to improve the conservation of declining Migratory species.
Daniel Oro - One of the best experts on this subject based on the ideXlab platform.
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A Long-Term Macroecological Analysis of the Recovery of a Waterbird Metacommunity after Site Protection
PloS one, 2014Co-Authors: Janina Pagel, Alejandro Martínez-abraín, Juan Antonio Gómez, Juan Jiménez, Daniel OroAbstract:We used the so called “land-bridge island” or “nested-subsets” theory to test the resilience of a highly fragmented and perturbated waterbird metacommunity, after legal Protection of 18 wetlands in the western Mediterranean. Sites were monitored during 28 years and two seasons per year. The metacommunity was composed by 44 species during breeding and 67 species during wintering, including shorebirds, ducks, herons, gulls and divers (Podicipedidae). We identified a strong nested pattern. Consistent with the fact that the study system was to a large extent a spatial biogeographical continuous for thousands of years, fragmented only during the last centuries due to human activities. Non-random selective extinction was the most likely historical process creating the nested pattern, operated by the differential carrying capacity (surface-area) of the remaining Sites. We also found a positive temporal trend in nestedness and a decreasing trend in species turnover among Sites (β-diversity), indicating that Sites are increasingly more alike to each other (i.e. increased biotic homogenization). This decreasing trend in β-diversity was explained by an increasing trend in local (α) diversity by range expansion of half the study species. Regional (γ) diversity also increased over time, indicating that colonization from outside the study system also occurred. Overall our results suggest that the study metacommunity is recovering from historical anthropogenic perturbations, showing a high long-term resilience, as expected for highly vagile waterbirds. However, not all waterbird groups contributed equally to the recovery, with most breeding shorebird species and most wintering duck species showing no geographical expansion.
Wenyuan Zhang - One of the best experts on this subject based on the ideXlab platform.
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spring migration patterns habitat use and stopover Site Protection status for two declining waterfowl species wintering in china as revealed by satellite tracking
Ecology and Evolution, 2018Co-Authors: Wenyuan Zhang, Ben Wielstra, Jie Wei, Guanhua Liu, Hao Luo, John Y Takekawa, Sivananintha Balachandran, Tao ZhangAbstract:East Asian migratory waterfowl have greatly declined since the 1950s, especially the populations that winter in China. Conservation is severely hampered by the lack of primary information about migration patterns and stopover Sites. This study utilizes satellite tracking techniques and advanced spatial analyses to investigate spring migration of the greater white-fronted goose (Anser albifrons) and tundra bean goose (Anser serrirostris) wintering along the Yangtze River Floodplain. Based on 24 tracks obtained from 21 individuals during the spring of 2015 and 2016, we found that the Northeast China Plain is far-out the most intensively used stopover Site during migration, with geese staying for over 1 month. This region has also been intensely developed for agriculture, suggesting a causal link to the decline in East Asian waterfowl wintering in China. The Protection of waterbodies used as roosting area, especially those surrounded by intensive foraging land, is critical for waterfowl survival. Over 90% of the core area used during spring migration is not protected. We suggest that future ground surveys should target these areas to confirm their relevance for migratory waterfowl at the population level, and core roosting area at critical spring-staging Sites should be integrated in the network of protected areas along the flyway. Moreover, the potential bird–human conflict in core stopover area needs to be further studied. Our study illustrates how satellite tracking combined with spatial analyses can provide crucial insights necessary to improve the conservation of declining Migratory species.
