P. O. Ritcher

661 total citations
22 papers, 475 citations indexed

About

P. O. Ritcher is a scholar working on Ecology, Evolution, Behavior and Systematics, Paleontology and Insect Science. According to data from OpenAlex, P. O. Ritcher has authored 22 papers receiving a total of 475 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Ecology, Evolution, Behavior and Systematics, 11 papers in Paleontology and 5 papers in Insect Science. Recurrent topics in P. O. Ritcher's work include Scarabaeidae Beetle Taxonomy and Biogeography (11 papers), Coleoptera Taxonomy and Distribution (4 papers) and Plant and animal studies (3 papers). P. O. Ritcher is often cited by papers focused on Scarabaeidae Beetle Taxonomy and Biogeography (11 papers), Coleoptera Taxonomy and Distribution (4 papers) and Plant and animal studies (3 papers). P. O. Ritcher collaborates with scholars based in United States and Philippines. P. O. Ritcher's co-authors include T. B. Stewart, Henry F. Howden, Robert A. Hoffman, LeMar F. Remmert, J. A. Rudinský, Arthur W. Lindquist and A. E. Michelbacher and has published in prestigious journals such as Annual Review of Entomology, The Quarterly Review of Biology and Journal of Parasitology.

In The Last Decade

P. O. Ritcher

20 papers receiving 400 citations

Peers

P. O. Ritcher

PALEO

EEBS

IS

GABS

PS

E. G. Matthews Australia

P. B. Carne Australia

Mary Liz Jameson United States

Pedro Reyes‐Castillo Mexico

Cuauhtémoc Deloya Mexico

François Génier Canada

Paul E. Skelley United States

Federico C. Ocampo Argentina

José Luís Navarrete-Heredia Mexico

Cláudio Ruy Vasconcelos da Fonseca Brazil

E. G. Matthews Australia

P. O. Ritcher

162 ×0.5

PALEO

231 ×0.8

EEBS

64 ×0.5

IS

42 ×0.5

GABS

36 ×0.4

PS

Citations per year, relative to P. O. Ritcher P. O. Ritcher (= 1×) peers E. G. Matthews

Countries citing papers authored by P. O. Ritcher

Since Specialization

Citations

This map shows the geographic impact of P. O. Ritcher's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P. O. Ritcher with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. O. Ritcher more than expected).

Fields of papers citing papers by P. O. Ritcher

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. O. Ritcher. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P. O. Ritcher. The network helps show where P. O. Ritcher may publish in the future.

Co-authorship network of co-authors of P. O. Ritcher

This figure shows the co-authorship network connecting the top 25 collaborators of P. O. Ritcher. A scholar is included among the top collaborators of P. O. Ritcher based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with P. O. Ritcher. P. O. Ritcher is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

1.

Ritcher, P. O.. (1976). Insect Abundance. The American Biology Teacher. 38(4). 235–238. 1 indexed citations

2.

Ritcher, P. O., et al.. (1975). Notes on the Life Cycle and Myrmecophilous Adaptations of Cremastocheilus Armatus(Coleoptera: Scarabaeidae). Psyche A Journal of Entomology. 82(3-4). 283–291. 9 indexed citations

3.

Ritcher, P. O., et al.. (1974). Ovariole numbers in Scarabaeoidea. Biodiversity Heritage Library (Smithsonian Institution). 2 indexed citations

4.

Ritcher, P. O., et al.. (1974). A new genus of ochodaeinae and a description of the larva of Pseudochodaeus estriatus (Schaeffer) (Coleoptera: Scarabaeidae). Biodiversity Heritage Library (Smithsonian Institution). 12 indexed citations

5.

Ritcher, P. O.. (1972). Taxonomy of Immature Insects - Present Status and Future Needs. Bulletin of the Entomological Society of America. 18(2). 99–101. 5 indexed citations

6.

Ritcher, P. O., et al.. (1972). Rapid Dissection of Insects to Determine Ovarial Development1. Annals of the Entomological Society of America. 65(1). 271–274. 3 indexed citations

7.

Ritcher, P. O., et al.. (1969). Morphology of the Posterior Procoxal Bridges in Scarabaeoidea (Coleoptera). The Coleopterists Bulletin. 23(4). 89–92. 5 indexed citations

8.

Ritcher, P. O.. (1969). Spiracles of Adult Scarabaeoidea (Coleoptera) and Their Phylogenetic Significance. II. Thoracic Spiracles and Adjacent Sclerites1. Annals of the Entomological Society of America. 62(6). 1388–1398. 16 indexed citations

9.

Ritcher, P. O.. (1969). Spiracles of Adult Scarabaeoidea (Coleoptera) and Their Phylogenetic Significance. I. the Abdominal Spiracles1. Annals of the Entomological Society of America. 62(4). 869–880. 26 indexed citations

10.

Ritcher, P. O.. (1968). The Natural History of Dung Beetles of the Subfamily Scarabaeinae (Coleoptera, Scarabaeidae).Gonzalo Halffter , Eric G. Matthews. The Quarterly Review of Biology. 43(2). 206–207. 2 indexed citations

11.

Ritcher, P. O.. (1966). Biological control of insects and weeds in Oregon. 3 indexed citations

12.

Ritcher, P. O.. (1966). White grubs and their allies. 108 indexed citations

13.

Remmert, LeMar F., et al.. (1961). Needle scorch and condition of ponderosa pine trees in The Dalles area. 1 indexed citations

14.

Ritcher, P. O., et al.. (1959). Biology of Aphodiinae with special reference to Oregon (Coleoptera: Scarabaeidae). Biodiversity Heritage Library (Smithsonian Institution). 2 indexed citations

15.

Ritcher, P. O., et al.. (1959). Biology of rain beetles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties. 4 indexed citations

16.

Michelbacher, A. E., et al.. (1956). Proceedings of the Thirty-Ninth Annual Meeting. Bulletin of the Entomological Society of America. 2(1). 25–26. 3 indexed citations

17.

Ritcher, P. O., et al.. (1955). Aphodius pardalis Lec. A New Turf Pest12. Journal of Economic Entomology. 48(4). 476–476. 2 indexed citations

18.

Lindquist, Arthur W., et al.. (1953). Chemotherapeutic Use of Insecticides for Control of Bloodsucking Insects12. Journal of Economic Entomology. 46(4). 610–614. 1 indexed citations

19.

Howden, Henry F. & P. O. Ritcher. (1952). Biology of Deltochilum gibbosum (Fab.) with a Description of the Larva. The Coleopterists Bulletin. 6(4). 53–57. 2 indexed citations

20.

Ritcher, P. O., et al.. (1952). Control of Rootworms Affecting Peanuts1. Journal of Economic Entomology. 45(6). 965–969.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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