Eric G Chapman

Eric G Chapman
University of Kentucky | UKY · Department of Entomology

PhD

About

221
Publications
14,186
Reads
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1,660
Citations
Citations since 2016
94 Research Items
1084 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
Additional affiliations
October 2012 - present
University of Kentucky
Position
  • Research analyst and collections manager
Description
  • Hymenoptera systematics and biodiversity inventories. Use DNA sequences to discover new taxa of Braconidae through phylogenetic analysis. Utilize next-generation sequencing to survey the biodiversity in forest canopies.
January 2009 - October 2012
University of Kentucky
Description
  • Post-doctoral scholar. Research focus: Predator-prey relationships in agricultural systems through molecular gut-content analysis.
August 2001 - December 2008
Kent State University
Description
  • PhD. Dissertation title: BAYESIAN PHYLOGENETICS OF SNAIL-KILLING FLIES (DIPTERA: SCIOMYZIDAE) AND FRESHWATER MUSSELS (BIVALVIA: UNIONIDAE): IMPLICATIONS OF PARALLEL EVOLUTION, FEEDING GROUP STRUCTURE AND MOLECULAR EVOLUTION

Publications

Publications (221)
Article
Full-text available
A new genus of the tribe Alysiini (Hymenoptera, Braconidae, Alysiinae) is described with specimens from India, Indonesia, Malaysia, Singapore, Thailand, and Vietnam, and six new species are described: Anamalysia idiastimorpha sp. nov. (type species), A. knekosoma sp. nov. , A. mellipes sp. nov. , A. transversator sp. nov. , A. vandervechti sp. nov....
Article
A new braconid genus belonging to the tribe Alysiini. Phaenospila van Achterberg & Yao, gen. nov. (type species: Phaenospila signator Yao, sp. nov.), is described. The genus is identified with morphological characters and a phylogenetic analysis of COI sequence data; GenBank accession numbers of fifty generated sequences from the three species are...
Article
Full-text available
Generalist predators’ complex feeding relationships make it difficult to predict their contribution to pest suppression. Alternative prey can either distract predators from attacking pests, weakening biocontrol, or provide food that support larger predator communities to enhance it. Similarly, predator species might both feed upon and complement on...
Article
Background: Generalist predators that kill and eat other natural enemies can weaken biological control. However, pest suppression can be disrupted even if actual intraguild predation is infrequent, if predators reduce their foraging to lower their risk of being killed. In turn, predator-predator interference might be frequent when few other prey a...
Article
BACKGROUND Biological control by generalist predators can be mediated by the abundance and biodiversity of alternative prey. When alternative prey draw predator attacks away from the control target, they can weaken pest suppression. In other cases, a diverse prey base can promote predator abundance and biodiversity, reduce predator–predator interfe...
Article
Greater arthropod diversity may promote biological control by bringing together predator species that occupy complementary feeding niches. Diverse prey communities could further accentuate such niche differences and decrease predator-predator antagonism. However, much evidence of these effects comes from simple experiments that do not reflect the e...
Article
Full-text available
Three new genera are described: Michener (Proteropinae), Bioalfa (Rogadinae), and Hermosomastax (Rogadinae). Keys are given for the New World genera of the following braconid subfamilies: Agathidinae, Braconinae, Cheloninae, Homolobinae, Hormiinae, Ichneutinae, Macrocentrinae, Orgilinae, Proteropinae, Rhysipolinae, and Rogadinae. In these subfamili...
Conference Paper
Full-text available
Bees are the most important pollinators in both managed and natural ecosystems, and yet concerns about bee declines are growing. Unfortunately, only a fraction of the 20,000 known bee species has adequate data to assess the status of species and susceptibility of populations to decline. The iDigBees Thematic Collections Network (TCN), comprised of...
Article
Full-text available
Maternally inherited bacterial endosymbionts are common in arthropods, but their distribution and prevalence are poorly characterized in many host taxa. Initial surveys have suggested that vertically transmitted symbionts may be particularly common in spiders (Araneae). Here, we used diagnostic PCR and high-throughput sequencing to evaluate symbion...
Article
Full-text available
Here we elucidate and justify a DNA barcode approach to insect species description that can be applied to name tens of thousands of species of Ichneumonoidea and many other species-rich taxa. Each description consists of a lateral habitus image of the specimen, a COI barcode diagnosis, and the holotype specimen information required by the Internati...
Preprint
Full-text available
Maternally inherited bacterial endosymbionts are common in arthropods, but their distribution and prevalence is poorly characterized in many host taxa. For example, spiders (Araneae) have received little attention, but initial surveys suggest that vertically transmitted symbionts may be common. Here, we characterized endosymbiont infection in a com...
Article
Full-text available
The contribution of generalist insect predators to the control of the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), an herbivorous pest of many crops, is poorly understood. One of the common insect predators in strawberries is the generalist predatory bug Anthocoris nemorum L. (Hemiptera: Anthocoridae), which has the pot...
Article
SenwotWharton 1983, is a small braconid genus with only two previously described species. The genus is revised using morphological characters and a phylogenetic analysis of COI sequence. Senwot Wharton is reported for the first time from Thailand and two new species: Senwot yinxianggaoae Yao n. sp. and Senwot jiyuanyaoi Yao n. sp. are described and...
Article
Full-text available
Based on cladistic analyses recently conducted by Sharkey and Chapman, the genus Zosteragathis Sharkey is revised. Twenty-two species are reported from Thailand, three previously described species, Z.samensis , Z.contrasta and Z.nuichuaensis , and 19 new species, i.e., Z.chaiyaphumensis , Z.eukos , Z.hinensis , Z.hongensis , Z.inthanonensis , Z.kra...
Article
Neurolarthra Fischer, 1976, is a small braconid genus with two described species. The genus is revised using morphological characters and a phylogenetic analysis of COI sequence data; GenBank accession numbers of seven COI sequences from two species are included. A new species from Thailand is described and illustrated: N. karensharkeyae Yao n. sp....
Article
Neurolarthra Fischer, 1976, is a small braconid genus with two described species. The genus is revised using morphological characters and a phylogenetic analysis of COI sequence data; GenBank accession numbers of seven COI sequences from two species are included. A new species from Thailand is described and illustrated: N. karensharkeyae Yao n. sp....
Article
Thirty two new species of Lytopylus (Agathidinae) are described with image plates for each species: Lytopylus alejandromasisi sp. n., Lytopylus alfredomainieri sp. n., Lytopylus anamariamongeae sp. n., Lytopylus angelagonzalezae sp. n., Lytopylus cesarmorai sp. n., Lytopylus eddysanchezi sp. n., Lytopylus eliethcantillanoae sp. n., Lytopylus ericch...
Article
The phylogeny of the Agathidinae is analyzed employing 45 agathidine genera, 172 Agathidinae operational taxonomic units, and sequences from the mitochondrial gene COI and the nuclear ribosomal gene 28S. The tribal classification is revised; two new tribes are proposed, i.e., Lytopylini and Agathirsini. Mesocoelini n. stat., is included as a tribe...
Article
The broad feeding habits of generalist predators can lead to uncertainty about their impacts on particular pests. Due to prey switching, consumption of one pest species by generalist predators might decrease as densities of attractive alternative prey increase. To test this, we used molecular tools to examine presence/absence of two-spotted spider...
Article
Full-text available
Hemiptera, the largest non-holometabolous order of insects, represents approximately 7% of metazoan diversity. With extraordinary life histories and highly specialized morphological adaptations, hemipterans have exploited diverse habitats and food sources through approximately 300 Myr of evolution. To elucidate the phylogeny and evolutionary histor...
Article
The study of food webs and trophic interactions increasingly relies on PCR-based molecular gut-content analysis. However, this technique may be prone to error from contamination of minute quantities of DNA; i.e., simply storing specimens together in a liquid medium may lead to cross-contamination. In this study, we used PCR to determine the contami...
Article
Full-text available
The Agathidini (Braconidae: Agathidinae) genera of Southeast Asia are revised based on a phylogenetic analysis of COI and 28S. Ten new genera are proposed, i.e., Agathigma, Asperagathis, Chimaeragathis, Cymagathis, Liragathis, Leuroagathis, Scabagathis, Trochantagathis, Xanthagathis, and Zosteragathis. An illustrated key to the Southeast Asian gene...