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Hartebrodt L, Wilson S, Costello MJ. Progress in the discovery of isopods (Crustacea: Peracarida)-is the description rate slowing down? PeerJ 2023; 11:e15984. [PMID: 37692117 PMCID: PMC10484202 DOI: 10.7717/peerj.15984] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023] Open
Abstract
Taxonomic species are the best standardised metric of biodiversity. Therefore, there is broad scientific and public interest in how many species have already been named and how many more may exist. Crustaceans comprise about 6% of all named animal species and isopods about 15% of all crustaceans. Here, we review progress in the naming of isopods in relation to the number of people describing new species and estimate how many more species may yet be named by 2050 and 2100, respectively. In over two and a half centuries of discovery, 10,687 isopod species in 1,557 genera and 141 families have been described by 755 first authors. The number of authors has increased over time, especially since the 1950s, indicating increasing effort in the description of new species. Despite that the average number of species described per first author has declined since the 1910s, and the description rate has slowed down over the recent decades. Authors' publication lifetimes did not change considerably over time, and there was a distinct shift towards multi-authored publications in recent decades. Estimates from a non-homogeneous renewal process model predict that an additional 660 isopod species will be described by 2100, assuming that the rate of description continues at its current pace.
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Affiliation(s)
- Lena Hartebrodt
- Institute of Marine Science, University of Auckland, Auckland, New Zealand
| | - Simon Wilson
- School of Computer Science and Statistics, University of Dublin, Trinity College, Dublin, Ireland
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Deng J, Li J, Zhang X, Zeng L, Guo Y, Wang X, Chen Z, Zhou J, Huang X. Potential Global Invasion Risk of Scale Insect Pests Based on a Self-Organizing Map. INSECTS 2023; 14:572. [PMID: 37504579 PMCID: PMC10380675 DOI: 10.3390/insects14070572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/08/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023]
Abstract
In the present study, a global presence/absence dataset including 2486 scale insect species in 157 countries was extracted to assess the establishment risk of potential invasive species based on a self-organizing map (SOM). According to the similarities in species assemblages, a risk list of scale insects for each country was generated. Meanwhile, all countries in the dataset were divided into five clusters, each of which has high similarities of species assemblages. For those countries in the same neuron of the SOM output, they may pose the greatest threats to each other as the sources of potential invasive scale insect species, and therefore, require more attention from quarantine departments. In addition, normalized ζi values were used to measure the uncertainty of the SOM output. In total, 9 out of 63 neurons obtained high uncertainty with very low species counts, indicating that more investigation of scale insects should be undertaken in some parts of Africa, Asia and Northern Europe.
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Affiliation(s)
- Jun Deng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Junjie Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xinrui Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lingda Zeng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yanqing Guo
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xu Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zijing Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiali Zhou
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaolei Huang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Mestre-Novoa N, Kondo T. Description of a New Genus and New Species of Soft Scale Insect (Hemiptera: Coccomorpha: Coccidae) from Cuba. INTERNATIONAL JOURNAL OF INSECT SCIENCE 2018; 10:1179543318785147. [PMID: 30090019 PMCID: PMC6077884 DOI: 10.1177/1179543318785147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 05/17/2018] [Indexed: 06/08/2023]
Abstract
A new neotropical genus and species of soft scale insect from Cuba, Hamonicoccus Mestre and Kondo gen. nov. is described and Hamonicoccus alayoi Mestre and Kondo sp. nov. (Hemiptera: Coccomorpha: Coccidae) is described and illustrated based on the adult female. The species was collected in Cayos de las Cinco Leguas, Matanzas Province, on Capparis cynophallophora (Capparaceae), and in Surgidero de Batabanó, Mayabeque Province, on Rhizophora mangle (Rhizophoraceae). The affinities of H alayoi sp. nov. with closely related species is discussed based on published literature. An updated list of soft scale insects (Hemiptera: Coccidae) known from Cuba is provided.
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Affiliation(s)
- Nereida Mestre-Novoa
- Instituto de Ecología y Sistemática, Agencia de Medio Ambiente (AMA), La Habana, Cuba
| | - Takumasa Kondo
- Centro de Investigación Palmira, Corporación colombiana de investigación agropecuaria AGROSAVIA, Palmira, Colombia
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Costello MJ, Chaudhary C. Marine Biodiversity, Biogeography, Deep-Sea Gradients, and Conservation. Curr Biol 2017; 27:R511-R527. [DOI: 10.1016/j.cub.2017.04.060] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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