L. A. Johnston

1.2k total citations
19 papers, 949 citations indexed

About

L. A. Johnston is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Agronomy and Crop Science. According to data from OpenAlex, L. A. Johnston has authored 19 papers receiving a total of 949 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Public Health, Environmental and Occupational Health, 12 papers in Reproductive Medicine and 10 papers in Agronomy and Crop Science. Recurrent topics in L. A. Johnston's work include Reproductive Biology and Fertility (13 papers), Sperm and Testicular Function (11 papers) and Reproductive Physiology in Livestock (9 papers). L. A. Johnston is often cited by papers focused on Reproductive Biology and Fertility (13 papers), Sperm and Testicular Function (11 papers) and Reproductive Physiology in Livestock (9 papers). L. A. Johnston collaborates with scholars based in United States, Canada and China. L. A. Johnston's co-authors include David E. Wildt, Ann M. Donoghue, Stephen J. O’Brien, Boon P. Chew, Lee G. Simmons, Janine L. Brown, Steven L. Monfort, JoGayle Howard, D. L. Armstrong and J. G. Howard and has published in prestigious journals such as Journal of Dairy Science, Biology of Reproduction and Reproduction.

In The Last Decade

L. A. Johnston

19 papers receiving 883 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
L. A. Johnston United States	16	669	602	279	185	185	19	949
E. E. Swierstra Canada	18	389 0.6×	728 1.2×	347 1.2×	248 1.3×	399 2.2×	33	1.2k
H. Feitsma Netherlands	16	375 0.6×	466 0.8×	246 0.9×	253 1.4×	261 1.4×	26	935
M. Wallgren Sweden	22	896 1.3×	1.1k 1.9×	221 0.8×	70 0.4×	245 1.3×	31	1.3k
Bambang Purwantara Indonesia	16	420 0.6×	459 0.8×	420 1.5×	62 0.3×	425 2.3×	119	1.1k
E. Palmer France	23	759 1.1×	660 1.1×	982 3.5×	97 0.5×	261 1.4×	79	1.5k
S. Sancho Spain	20	640 1.0×	876 1.5×	199 0.7×	37 0.2×	155 0.8×	47	1.1k
J.D. Roussel United States	18	355 0.5×	343 0.6×	470 1.7×	99 0.5×	292 1.6×	76	1.0k
BJ Restall Australia	16	387 0.6×	406 0.7×	454 1.6×	59 0.3×	299 1.6×	42	887
M. L. W. J. Broekhuijse Netherlands	16	375 0.6×	523 0.9×	254 0.9×	126 0.7×	390 2.1×	24	861
R.H. Alberio Argentina	19	615 0.9×	506 0.8×	479 1.7×	43 0.2×	271 1.5×	59	991

Countries citing papers authored by L. A. Johnston

Since Specialization

Citations

This map shows the geographic impact of L. A. Johnston'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 L. A. Johnston with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites L. A. Johnston more than expected).

Fields of papers citing papers by L. A. Johnston

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by L. A. Johnston. 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 L. A. Johnston. The network helps show where L. A. Johnston may publish in the future.

Co-authorship network of co-authors of L. A. Johnston

This figure shows the co-authorship network connecting the top 25 collaborators of L. A. Johnston. A scholar is included among the top collaborators of L. A. Johnston 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 L. A. Johnston. L. A. Johnston is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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19 of 19 papers shown

Jiang, Shuzhen, et al.. (2011). Effect of purified zearalenone with or without modified montmorillonite on nutrient availability, genital organs and serum hormones in post-weaning piglets. Livestock Science. 144(1-2). 110–118. 43 indexed citations

Donoghue, Ann M., A. P. Byers, L. A. Johnston, D. L. Armstrong, & David E. Wildt. (1996). Timing of ovulation after gonadotrophin induction and its importance to successful intrauterine insemination in the tiger ( Panthera tigris ). Reproduction. 107(1). 53–58. 28 indexed citations

Johnston, L. A., et al.. (1994). Oocyte recovery and maturation in the American black bear (Ursus americanus): A model for endangered ursids. Journal of Experimental Zoology. 269(1). 53–61. 15 indexed citations

Johnston, L. A., D. L. Armstrong, & Janine L. Brown. (1994). Seasonal effects on seminal and endocrine traits in the captive snow leopard ( Panthera uncia ). Reproduction. 102(1). 229–236. 39 indexed citations

Schiewe, M.C., N.M. Loskutoff, Barbara Durrant, et al.. (1994). Gaur sperm cryopreservation trial: Analysis of packaging type and rapid freezing method for potential field application. Theriogenology. 41(1). 291–291. 1 indexed citations

Johnston, L. A., Ann M. Donoghue, Stephen J. O’Brien, & David E. Wildt. (1993). Influence of culture medium and protein supplementation on in vitro oocyte maturation and fertilization in the domestic cat. Theriogenology. 40(4). 829–839. 26 indexed citations

Donoghue, Ann M., L. A. Johnston, K.L. Goodrowe, Stephen J. O’Brien, & David E. Wildt. (1993). Influence of day of oestrus on egg viability and comparative efficiency of in vitro fertilization in domestic cats in natural or gonadotrophin-induced oestrus. Reproduction. 98(1). 85–90. 23 indexed citations

Howard, J. G., Annie M. Donoghue, L. A. Johnston, & David E. Wildt. (1993). Zona Pellucida Filtration of Structurally Abnormal Spermatozoa and Reduced Fertilization in Teratospermic Cats1. Biology of Reproduction. 49(1). 131–139. 74 indexed citations

Donoghue, Ann M., L. A. Johnston, Douglas L. Armstrong, Lee G. Simmons, & David E. Wildt. (1993). BIRTH OF A SIBERIAN TIGER CUB {PANTHERA TIGRIS ALTAICA) FOLLOWING LAPAROSCOPIC INTRAUTERINE ARTIFICIAL INSEMINATION. 29 indexed citations

10.

Donoghue, Ann M., L. A. Johnston, U. S. Seal, et al.. (1992). Ability of thawed tiger ( Panthera tigris ) spermatozoa to fertilize conspecific eggs and bind and penetrate domestic cat eggs in vitro. Reproduction. 96(2). 555–564. 55 indexed citations

11.

Donoghue, Ann M., L. A. Johnston, L. Munson, Janine L. Brown, & David E. Wildt. (1992). Influence of Gonadotropin Treatment Interval on Follicular Maturation, in Vitro Fertilization, Circulating Steroid Concentrations, and Subsequent Luteal Function in the Domestic Cat1. Biology of Reproduction. 46(5). 972–980. 46 indexed citations

12.

Wildt, David E., Steven L. Monfort, Ann M. Donoghue, L. A. Johnston, & JoGayle Howard. (1992). Embryogenesis in conservation biology — Or, how to make an endangered species embryo. Theriogenology. 37(1). 161–184. 104 indexed citations

13.

Johnston, L. A., et al.. (1991). Influence of temperature and gas atmosphere on in-vitro fertilization and embryo development in domestic cats. Reproduction. 92(2). 377–382. 55 indexed citations

14.

Johnston, L. A., Ann M. Donoghue, Stephen J. O’Brien, & David E. Wildt. (1991). Rescue and Maturation in Vitro of Follicular Oocytes Collected from Nondomestic Felid Species1. Biology of Reproduction. 45(6). 898–906. 66 indexed citations

15.

Johnston, L. A., Ann M. Donoghue, Stephen J. O’Brien, & David E. Wildt. (1991). Culture medium and protein supplementation influence in vitro fertilization and embryo development in the domestic cat. Journal of Experimental Zoology. 257(3). 350–359. 50 indexed citations

16.

Donoghue, Ann M., L. A. Johnston, U. S. Seal, et al.. (1990). In Vitro Fertilization and Embryo Development in Vitro and in Vivo in the Tiger (Panthera Tigris)1. Biology of Reproduction. 43(5). 733–744. 110 indexed citations

17.

Johnston, L. A., Stephen J. O’Brien, & David E. Wildt. (1989). In Vitro maturation and fertilization of domestic cat follicular oocytes. Gamete Research. 24(3). 343–356. 103 indexed citations

18.

Johnston, L. A., Stephen J. O’Brien, & David E. Wildt. (1989). In vitro maturation and fertilization of domestic cat follicular oocytes. Theriogenology. 31(1). 207–207. 9 indexed citations

19.

Johnston, L. A. & Boon P. Chew. (1984). Peripartum Changes of Plasma and Milk Vitamin A and β-Carotene among Dairy Cows with or without Mastitis. Journal of Dairy Science. 67(8). 1832–1840. 73 indexed citations

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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