34,112 research outputs found
Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textBarboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P., Jacobucci, G. B. (2023): Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil. Journal of Natural History 57 (5-8): 427-444, DOI: 10.1080/00222933.2023.2190547, URL: http://dx.doi.org/10.1080/00222933.2023.219054
Figure 2 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 2. (a) Dilocarcinus pagei Stimpson, 1861; (b) abdomen width; (c) carapace width; (d) right propodus length; (e) female with eggs; (f) female with eggs and juveniles in the abdominal cavity (both at the same time); (g) female with juveniles in the abdominal cavity. Scale bar: 20 mm.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 431, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 7 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 7. (a) Frequency of different demographic classes according to rainfall gradient. (b) Frequency of different demographic classes according to water level reservoir gradient. AF = adult females; AM = adult males, FEJ = female with eggs and juveniles; JF = juvenile females; JM = juvenile males.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 436, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 5 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 5. Monthly distribution of carapace width frequency of individuals of Dilocarcinus pagei Stimpson, 1861. AF = adult females; AM = adult males, CW = carapace width, FEJ = female with eggs and juveniles; JF = juvenile females; JM = juvenile males.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 434, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 3 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 3. Sampled data on local rainfall and water level in the reservoir during the sampling period, from September 2020 to November 2021.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 432, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 4 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 4. Frequency of carapace width of Dilocarcinus pagei Stimpson, 1861. AF = adult females; AM = adult males, CW = carapace width, FEJ = female with eggs and juveniles; JF = juvenile females; JM = juvenile males.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 433, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 8 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 8. Canonical correspondence analysis between different demographic groups and environmental variables of rainfall and reservoir water level. AF = adult females; AM = adult males, FEJ = female with eggs and juveniles; JF = juvenile females; JM = juvenile males.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 437, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 1 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 1. Location (a) and characterisation (b–e) of the study area in the Araguari River, Tupaciguara, Minas Gerais, Brazil. The sampled section is shown inside the red circle. b = partially exposed Melo Viana bridge found in the original riverbed. The Melo Viana bridge connected the cities of Araguari and Tupaciguara before the dam´s construction in the 1970s when it was submerged by the reservoir filling. b–d = grasses and macrophytes on the banks; e = burrows on the slopes.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 430, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Figure 6 in Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil
No full textFigure 6. (a) Sex ratio by size classes and total number of individuals of Dilocarcinus pagei Stimpson, 1861 sampled during the study period. (b) Monthly sex ratio of individuals of Dilocarcinus pagei. White circles indicate a significant difference in relation to the 1:1 ratio (binomial test, p <.05), and black circles indicate that there was no significant difference. Values above and below 0.5 indicate deviations for males and females, respectively. CW = carapace width.Published as part of Barboza, A. C. G., Nogueira, C. S., Calixto-Cunha, M., Londe, B. P. & Jacobucci, G. B., 2023, Population biology of the freshwater crab Dilocarcinus pagei Stimpson, 1861 (Decapoda: Trichodactylidae) in the Araguari River, south-eastern Brazil, pp. 427-444 in Journal of Natural History 57 (5-8) on page 435, DOI: 10.1080/00222933.2023.2190547, http://zenodo.org/record/785927
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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