Ecology and Evolutionary Biology Commons^™

Weed Science Research Summary 2019: Progress Report Of Phd Student Regarding Weed Control, Jesaelen Gizotti De Moraes

West Central Research and Extension Center, North Platte

2017-2018 Interaction of Lactofen with Glyphosate or Glufosinate for Weed Control as Affected by Adjuvants and Droplet Size

2018 Effect of Adjuvants on Physical Properties of Glyphosate and PPO-Inhibiting Herbicide Spray Mixtures

2019 Management of Troublesome Weeds in XtendFlex^® Soybeans

2019-2020 Soybean Symptomatology and Yield Response to Sub-Labeled Doses of Dicamba and 2,4-D

Evaluation Of Foliar Insecticide Application Timing For The Control Of Western Bean Cutworm In Field Corn, 2018, Katharine A. Swoboda-Bhattarai, Samantha R. Daniel, Julie A. Peterson

West Central Research and Extension Center, North Platte

The objective of this field trial was to determine if application timing affects the efficacy of single applications of foliar insecticides at preventing feeding damage by the western bean cutworm (WBC), an important pest of corn and dry beans in the North American Corn Belt. This study was located at the University of Nebraska- Lincoln’s Henry J. Stumpf International Wheat Center in Perkins County, NE (40.856851°N, −101.701335°W). The experimental design used was an RCB design with a total of 10 treatments (three insecticides applied at three application timings, plus an untreated check) and four replications; the treatment design was an …

Eucosma Giganteana (Riley) And Sliphium Perfoliatum L., Morphological Variation In An Insect-Plant Association In Eastern South Dakota, Paul J. Johnson, Arvid Boe, Abigail P. Martens

Native Plant Focused Publications

Silphium perfoliatum L., cup plant, has potential as a new multi-purpose crop. It is pollinator-friendly and has biodiversity enhancement, conservation, economic, and medical potential. In eastern South Dakota, S. perfoliatum can produce more than 20 Mg (million grams) ha-1 of biomass and 0.09 Mg ha-1 of seed in agronomic plantings. The giant eucosma moth, Eucosma giganteana (Riley), is a major pest of agronomic S. perfoliatum in the region. We provide a summary of this insect and its association with its host. Our experimental objectives were to determine if the frequency of rhizome occupation by late instar larvae and if their …

Combining The Iad And Ses Frameworks, Daniel H. Cole, Graham Epstein, Michael D. Mcginnis

Articles by Maurer Faculty

No abstract provided.

Social Learning Through Associative Processes: A Computational Theory, Johan Lind, Stefano Ghirlanda, Magnus Enquist

Publications and Research

Social transmission of information is a key phenomenon in the evolution of behaviour and in the establishment of traditions and culture. The diversity of social learning phenomena has engendered a diverse terminology and numerous ideas about underlying learning mechanisms, at the same time that some researchers have called for a unitary analysis of social learning in terms of associative processes. Leveraging previous attempts and a recent computational formulation of associative learning, we analyse the following learning scenarios in some generality: learning responses to social stimuli, including learning to imitate; learning responses to non-social stimuli; learning sequences of actions; learning to …

Dung Beetle Functional Traits Related To Restoration Management Practices In Tallgrass Prairie, Sheryl C. Hosler

Graduate Research Theses & Dissertations

The restoration of degraded ecosystems often focuses on reestablishing species richness and diversity of native organisms, especially plants. However, functional trait descriptions of communities are emerging as a more comprehensive approach to evaluating restorations, including consumer communities. I examined the species composition and functional traits of dung beetle (Coleoptera: Scarabeidae) communities across a chronosequence of restored tallgrass prairie in Illinois, in which sites varied in the presence of bison and the application of prescribed fire during the study. Data were collected on behavioral guild and body measurements, and functional diversity metrics (functional richness, evenness, divergence, and dispersion) were analyzed using …

Testing The Competition-Colonization Trade-Off And Its Correlations With Functional Trait Variations Among Subtropical Tree Species, Yue Bin, Guojun Lin, Sabrina E. Russo, Zhongliang Huang, Yong Shen, Honglin Cao, Juyu Lian, Wanhui Ye

School of Biological Sciences: Faculty Publications

The competition-colonization trade-off, by which species can partition spatial niches, is a potentially important mechanism allowing the maintenance of species diversity in plant communities. We examined whether there was evidence for this trade-off among tree species in a subtropical forest and how it correlated with eight functional traits. We developed and estimated a metric for colonization ability that incorporates both fecundity and seed dispersal based on seed trap data and the sizes and distributions of adult trees. Competitive ability was estimated as survival probability under high crowding conditions based on neighborhood models. Although we found no significant relationship between colonization …

Gravid Tetragnathid Spiders Show An Increased Functional Response, Mary E. Boswell, John P. Delong

School of Biological Sciences: Faculty Publications

Spiders in the genus Tetragnatha feed on emerging aquatic insects, including mosquitoes and midges, but there is little known about the foraging behavior of these spiders. We hypothesized that female spiders actively developing egg sacs would increase food consumption to provide more energy to produce and provision their eggs. We tested this hypothesis by measuring foraging rates of Tetragnatha spiders kept in jars and provisioned with different levels of midges. We then tested for a difference in the functional response of spiders that did or did not lay egg sacs in their jars. Egg-laying and non-egg-laying spiders showed significantly different …

Modeling Genomes To Phenomes To Populations In A Changing Climate: The Need For Collaborative Networks, Nika Galic, Allyson G. Hindle, John P. Delong, Karen Watanabe, Valery Forbes, C. Loren Buck

School of Biological Sciences: Faculty Publications

Condensed Abstract

Climate is changing globally and its impacts can arise at different levels of biological organization; yet, cross-level consequences of climate change are still poorly understood. Designing effective environmental management and adaptation plans requires implementation of mechanistic models that span the biological hierarchy. Because biological systems are inherently complex and dynamic in nature, dealing with complexities efficiently necessitates simplification of systems or approximation of relevant processes, but there is little consensus on mathematical approaches to scale from genes to populations. Here we present an effort that aims to bring together groups that often do not interact, but that are …

Body Condition Helps To Explain Metabolic Rate Variation In Wolf Spiders, Stella F. Uiterwaal, John P. Delong

School of Biological Sciences: Faculty Publications

1. Metabolism is the fundamental process that powers life. Understanding what drives metabolism is therefore critical to our understanding of the ecology and behavior of organisms in nature.

2. Metabolic rate generally scales with body size according to a power law. However, considerable unexplained variation in metabolic rate remains after accounting for body mass with scaling functions.

3. We measured resting metabolic rates (oxygen consumption) of 227 field-caught wolf spiders. Then, we tested for effects of body mass, species, and body condition on metabolic rate.

4. Metabolic rate scales with body mass to the 0.85 power in these wolf spiders, …

Contemporary Sexual Selection Does Not Explain Variation In Male Display Traits Among Populations, J. Colton Watts, Allissa Flynn, Brigitte Tenhumberg, Eileen Hebets

Brigitte Tenhumberg Papers

Sexual selection is widely hypothesized to facilitate the evolution of reproductive isolation through divergence in sexual traits and sexual trait preferences among populations. However, direct evidence of divergent sexual selection causing intraspecific trait divergence remains limited. Using the wolf spider Schizocosa crassipes, we characterized patterns of female mate choice within and among geographic locations and related those patterns to geographic variation in male display traits to test whether divergent sexual selection caused by mate choice explains intraspecific trait variation. We found evidence of phenotypic selection on male behavior arising from female mate choice, but no evidence that selection varied …

Some Current Trends And Challenges In Philippine Aquaculture, With An Emphasis On Synergies With Biodiversity Initiatives, Ronald Allan L. Cruz, Vikas Kumar, Janice A. Ragaza

Biology Faculty Publications

No abstract provided.

A Rapid And Accurate Minion-Based Workflow For Tracking Species Biodiversity In The Field, Hendrik Freitag, Simone Maestri, Emanuela Cosentino, Marta Paterno, Jhoana M. Garces, Luca Marcolungo, Massimiliano Alfano, Iva Njunjić, Menno Schilthuizen, Ferry Slik, Michele Menegon, Marzia Rossato, Massimo Delledonne

Biology Faculty Publications

Genetic markers (DNA barcodes) are often used to support and confirm species identification. Barcode sequences can be generated in the field using portable systems based on the Oxford Nanopore Technologies (ONT) MinION sequencer. However, to achieve a broader application, current proof-of-principle workflows for on-site barcoding analysis must be standardized to ensure a reliable and robust performance under suboptimal field conditions without increasing costs. Here, we demonstrate the implementation of a new on-site workflow for DNA extraction, PCR-based barcoding, and the generation of consensus sequences. The portable laboratory features inexpensive instruments that can be carried as hand luggage and uses standard …

Trade-Offs Shape Carotenoid-Based Color Variation In Redheaded Pine Sawfly (Neodiprion Lecontei) Larvae, Maranda Gaines

Lewis Honors College Capstone Collection

Carotenoids serve various ecological roles in animals including coloration, immune responses, and vision. Carotenoid-derived coloration is greatly emphasized in the literature, particularly relating to mate choice and aposematic warning. However, the trade-offs between the color and non-color functions of carotenoids are not thoroughly explored. In the redheaded pine sawfly (Neodiprion lecontei), some larval populations have yellow pigmentation, using carotenoids derived from their diets for aposematic warning coloration. Other larval populations are white in color, having genetically lost the ability to produce the yellow pigment. Because carotenoids are essential to life functions in both the yellow and white populations, we aim …

The Trichoptera Of Panama. Xi. Three New Species Of Caddisflies In The Genus Smicridea Mclachlan (Trichoptera: Hydropsychidae) From Omar Torrijos And Santa Fe National Parks, Ernesto Razuri-Gonzales, Brian J. Armitage

Insecta Mundi

Herein we describe three new species of Smicridea McLachlan (S. (S.) lata, S. (S.) spatulata, and S. (S.) dividua) from Panama in the nigripennis species group (Trichoptera: Hydropsychidae). The nigripennis species group is characterized by having a rather complex phallic apparatus, open anteroventrally and posterodorsally, with ventral and lateral portions produced into lobes, and with spines and other structures arising from the endothecal membranes. All three species resulted from a 2017 survey of Omar Torrijos and Santa Fe National Parks. Twenty-six species of Smicridea, nine of …

Records Of Tiger Beetles (Coleoptera: Cicindelidae) Collected In Cambodia, With Description Of A New Species. 149. Contribution Towards The Knowledge Of The Cicindelidae, Jürgen Wiesner, Jerome Constant

Insecta Mundi

Naviauxella varians Wiesner and Constant, n. sp. (Coleoptera: Cicindelidae), is described. Neocollyris (Pachycollyris) bipartita unicolor (Horn, 1935), Therates laotiensis Sawada and Wiesner, 1999, Cosmodela duponti duponti (Dejean, 1826) and Cylindera (Ifasina) somnuki Naviaux, 1991 are recorded for the first time from Cambodia. Five tiger beetle species are recorded for the first time from Kampong Speu province, two for the first time from Ratanakiri province, and one each the first time from Pursat province and Preah Vihear province.

The Trichoptera Of Panama X. The Quebrada Rambala Drainage, With Description Of 19 New Species Of Microcaddisflies (Trichoptera: Hydroptilidae), Steven C. Harris, Brian J. Armitage

Insecta Mundi

The Quebrada Rambala drainage is found immediately south and south-southeast of the town of Chiriqui Grande and east of Rambala on the Caribbean coast. It is one of two tributaries of the Rio Margarita watershed, a small, lowland drainage with elevations up to 180 m. During the 2014-2017 period, collections of caddisflies (Insecta: Trichoptera), employing both UV-light and Malaise traps, were made at two locations on Quebrada Rambala proper, and four locations on its unnamed tributary, all on a land area of approximately 1 ha. As a result, 127 species of caddisflies were identified, including 59 species of microcaddisflies. A …

A New Species, New Geographical Records, And Taxonomic Notes In Oreodera Audinet-Serville, 1835 (Coleoptera: Cerambycidae: Lamiinae), James E. Wappes, Antonio Santos-Silva

Insecta Mundi

The Bolivian Oreodera pergeri Wappes and Santos-Silva (Coleoptera: Cerambycidae: Lamiinae) is described as new. Oreodera howdeni Monné and Fragoso, 1988 is newly recorded for the state of Chiapas in Mexico and for Belize, and the main differences between the sexes are reported. Other new records reported are: Oreodera boucheri Néouze and Tavakilian, 2010 for Peru; O. vulgata Monné and Fragoso, 1988 for Paraguarí Department in Paraguay; and O. stictica Monné and Fragoso, 1988 for Bolivia (Santa Cruz). Oreodera sororcula Martins and Monné, 1993 is illustrated, and notes on color, morphological variations, and correction in the published sex of a paratype …

Three New Synonymies In Phyllophaga Harris, 1827 (Coleoptera: Scarabaeidae), With Lectotype And Neotype Designations, Kyle E. Schnepp

Insecta Mundi

In the course of working on new species of North American Phyllophaga Harris, 1827 (Coleoptera: Scarabaeidae: Melolonthinae) some synonyms have been found and are proposed here. New synonymies: Phyllophaga knausii (Schaeffer, 1907) is synonymized with Phyllophaga sociata (Horn, 1878); Phyllophaga chippewa Saylor, 1939 is synonymized with Phyllophaga rugosa (Melsheimer, 1845); and Phyllophaga falta Sanderson, 1950 is synonymized with Phyllophaga bipartita (Horn, 1887). Lectotypes are here designated for the following species: Listrochelus knausii Schaeffer, Listrochelus sociatus Horn, and Lachnosterna bipartita Horn. A neotype for Ancylonycha rugosa Melsheimer is here designated from the Horn Collection.

A Contribution To The Knowledge Of Dermestidae (Coleoptera) From Guatemala, José Francisco García Ochaeta, Jiří Háva

Insecta Mundi

The following five species of Dermestidae (Coleoptera) are recorded for the first time from Guatemala: Attagenus fasciatus (Thunberg), Dermestes (Dermestinus) caninus caninus Germar, Orphinus fulvipes (Guérin-Méneville), Trogoderma simplex Jayne and Thorictodes heydeni Reitter. The species are recorded from the Guatemalan departments of Petén, Izabal and Zacapa.

A New Species And Synonymy In North American Phymatodes (Phymatodes) Mulsant, 1839 (Coleoptera: Cerambycidae: Cerambycinae: Callidiini), James E. Wappes, Antonio Santos-Silva

Insecta Mundi

Phymatodes (Phymatodes) huetheri Wappes and Santos-Silva (Coleoptera: Cerambycidae: Cerambycinae: Callidiini) from upstate New York, USA and Canada is described and illustrated. Phymatodes (Phymatodes) rainieri Van Dyke, 1937 is placed in synonymy with Phymatodes (Phymatodes) fulgidus Hopping, 1928.

Two New Species Of South America Neocherentes Tippmann, 1960 (Coleoptera: Cerambycidae: Lamiinae: Onciderini), Eugenio H. Nearns, Miguel A. Monné

Insecta Mundi

Two new species of Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) are described and illustrated: Neocherentes adrianoi Nearns and Monné, from Brazil, and Neocherentes pergeri Nearns and Monné, from Bolivia. The male of Neocherentes dilloniorum Tippmann, 1960 is redescribed and the female is described for the first time. Neocherentes dilloniorum is excluded from the Brazilian fauna. A key to the known species of Neocherentes Tippmann, 1960 is provided.

Dos nuevas especies de Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) son descritas e ilustradas: Neocherentes adrianoi Nearns y Monné, de Brasil, y Neocherentes pergeri Nearns y Monné, de Bolivia. El macho de Neocherentes …

Two New Tiger Beetle Species (Coleoptera: Cicindelidae) From Myanmar And Notes On Another Species. 151. Contribution Towards The Knowledge Of The Cicindelidae, Jürgen Wiesner, Michio Hori

Insecta Mundi

Cylindera (Ifasina) thitarooae Wiesner and Hori, new species, Jansenia phyuae Wiesner and Hori, new species, and the previously unknown male of Jansenia myanmarensis Wiesner, 2004 (Coleoptera: Cicindelidae) are described. Cylindera (I.) thitarooae may be recognized by shape of labrum and aedeagus. Jansenia phyuae may be recognized by its elytral contour and shape of elytral maculation.

A New Genus And Species Of Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) From Ecuador, With Notes On Additional Taxa, Eugenio H. Nearns

Insecta Mundi

A new genus and new species of Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) are described and illustrated: Velozideres buntyni, from Ecuador. The following two new synonymies in Onciderini are proposed: Oncideres paurosoma Noguera, 1993 = Microcanus minor (Bates, 1885); Oncioderes piauiensis Martins and Galileo, 2013 = Oncioderes rondoniae Martins and Galileo, 1990. The following seven new country records are reported: Clavidesmus chicae Giorgi, 1998 (Onciderini) (Argentina); Ecthoea quadricornis (Olivier, 1795) (Onciderini) (Venezuela); Oncideres ophthalmalis Dillon and Dillon, 1946 (Onciderini) (Costa Rica); Oncideres punctata Dillon and Dillon, 1946 (Onciderini) (El Salvador); Oncideres xavieri Galileo and Martins, 2010 (Onciderini) (Peru); Trestonia …

The Palearctic Flea Beetle Epitrix Pubescens (Koch) (Coleoptera: Chrysomelidae: Galerucinae: Alticini) Established In North America, Anthony M. Deczynski

Insecta Mundi

The Palearctic flea beetle Epitrix pubescens (Koch) (Coleoptera: Chrysomelidae: Galerucinae: Alticini) is reported as established in North America. It is recorded in the United States from Illinois, Massachusetts, New Hampshire, New York, Oregon, and Wisconsin, and in Canada from the Provinces of Nova Scotia, Ontario, and Quebec. The oldest records are from 1975. The species has been reported feeding on Solanum dulcamara L. (Solanaceae). Full distributional information and reference photos for identification are provided. Epitrix pubescens may have avoided detection for such a long time due to its size, difficulty of identification, and affinity for a weed rather than agricultural …

Three New Madagascan Species Of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae), M. J. Paulsen

Insecta Mundi

Adults of three known species of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae) in Madagascar have a strongly granulate pronotum. Three new species are described herein that have a smooth or weakly granulate pronotum: Ochodaeus modopunctatus, O. polypollicatus, and O. meandrus. A key to the species of Ochodaeus from Madagascar is provided.

New Species, A New Combination, And A New Country Record In American Clytini (Coleoptera: Cerambycidae: Cerambycinae), Juan Pablo Botero, Antonio Santos-Silva, James E. Wappes

Insecta Mundi

Two new species of Mexican Clytini (Coleoptera: Cerambycidae: Cerambycinae) are described: Trichoxys giesberti Botero, Santos-Silva and Wappes (also added to a recent key) and Megacyllene giesberti Botero, Santos-Silva and Wappes. The geographical distribution of Megacyllene melanaspis (Chevrolat, 1862) is expanded to include Bolivia, new country record, and compared to the similar and sympatric Megacyllene proxima (Laporte and Gory, 1841); Megacyllene asteca (Chevrolat, 1860) is proposed as a new combination for the previous Plagionotus asteca, and Amyipunga armaticollis (Zajciw, 1964) is redescribed to correct previous errors regarding it in the literature. Additionally, characters to help separate it from the similar …

Quantifying Signpost Usage By Captive Male White-Tailed Deer, Cassie L. Auxt, Eric S. Michel, Jonathan A. Jenks

The Prairie Naturalist

White-tailed deer (Odocoileus virginianus) use rubbing of signpost structures to communicate during the breeding season. Rubbing of signpost structures allows deer to communicate via visual and chemical cues, which allows them to establish dominance hierarchies and maintain hierarchal status throughout the breeding season (Moore and Marchinton 1974, Miller et al. 1981, Hewitt 2011). Once a living tree is rubbed, the exposed light-colored sapwood creates a stark contrast in wooded areas, increasing visibility and further enticing deer to investigate the structure (Oehler et al. 1995). Anatomically, the tubular apocrine sudoriferous glands of white-tailed deer are located at the antler …

Korean Encyrtids (Hymenoptera: Encyrtidae) Associated With Scale Insects (Hemiptera: Coccomorpha), Soo-Jung Suh

Insecta Mundi

Scale insects (Hemiptera: Coccomorpha) are sap-sucking plant parasites and economically important pests on agricultural and horticultural crops. Scale insects are often difficult to control since their body is protected by a wax cover. Parasitic wasps that live and develop in scale insects are important natural enemies and effective biological control agents of pest scale insects. Chalcid wasps of the family Encyrtidae (Hymenoptera: Chalcidoidea) comprise the largest group of parasitoids of scale insects, followed by the family Aphelinidae. Here, an updated list of all thirty-six species of encyrtids in twenty-three genera that have been identified or reported from South Korea is …

Observations On The Natural History Of Romulus Globosus Knull (Coleoptera: Cerambycidae), Josef Vlasak

Insecta Mundi

Host plants of Romulus globosus Knull (Coleoptera: Cerambycidae) are described for the first time. Notes on its natural history are provided. The larvae of R. globosus feed in living roots of scrub oaks, including Quercus geminata Small, Quercus myrtifolia Willd., and Quercus laevis Walter. Field observations show that the beetle emerges below ground, and females may burrow to lay eggs on the roots.