Tomasz E. Koralewski

Tomasz E. Koralewski
Texas A&M University | TAMU · Department of Ecology and Conservation Biology

Ph.D.

About

40
Publications
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451
Citations

Publications

Publications (40)
Article
Climate change is impacting distributions of both fauna and flora, including many crops. In order to ensure the health and vigor of the species we depend upon for food and fiber, assisted migration strategies may need to be implemented. This is especially true for long-lived forest trees. Multinomial logit regression was used to develop a Categoric...
Article
Invasive airborne insects pose major challenges in natural resource and agriculture management, as they can rapidly spread over large distances and cross physical boundaries. Field monitoring and local management are important tools to prevent and control infestations but require additional coordination to be operative region-wide. Computational mo...
Article
Airborne invasions of crop pests pose a significant challenge in agriculture. Novel infestations, such as the recently observed invasion of sugarcane aphid [Melanaphis sacchari (Zehntner) (Hemiptera:Aphididae)] on sorghum [Sorghum bicolor (L.) Moench] in the Great Plains of the U.S., emerge rapidly and require fast management actions to mitigate ec...
Article
Modeling dispersal of wind-borne pests can be a valuable tool in a broader context of areawide integrated pest management. In such models both biotic and abiotic factors play important roles. Many aspects of the life cycle and dispersal of the focal species are typically well studied and represented with robust measures. However, some important ass...
Article
Assessment of contemporary pollen-mediated gene flow in plants is important for various aspects of plant population biology, genetic conservation and breeding. Here, through simulations we compare the two alternative approaches for measuring pollen-mediated gene flow: (i) the NEIGHBORHOOD model--a representative of parentage analyses, and (ii) the...
Article
Full-text available
The sorghum (Sorghum bicolor [L.]) agroecosystem of North America provided an opportunity to evaluate agroecosystem response to an invading insect herbivore, Melanaphis sorghi (Theobald) (sorghum aphid) (previously published as Melanaphis sacchari Zehntner) (Hemiptera: Aphididae) onto a widely planted crop that experiences a range of agro-landscape...
Article
Airborne pests pose a major challenge in agriculture. Integrated pest management programs have been considered a viable response to this challenge, and pest forecasting can aid in strategic management decisions. Annually recurrent areawide sugarcane aphid [Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae)] infestations of sorghum [Sorghum bicol...
Article
Models capable of simulating both local population dynamics and long-range dispersal of wind-borne pests show promise as components of adaptive areawide pest management programs. Local life cycles and long-range wind-borne transport patterns, especially for small weak fliers, are relatively well-understood. However, modelling proximate causes of em...
Article
Full-text available
The pathways taken throughout any model-based process are undoubtedly influenced by the modeling team involved and the decision choices they make. For interconnected socioenvironmental systems (SES), such teams are increasingly interdisciplinary to enable a more expansive and holistic treatment that captures the purpose, the relevant disciplines an...
Article
Full-text available
System-of-systems approaches for integrated assessments have become prevalent in recent years. Such approaches integrate a variety of models from different disciplines and modeling paradigms to represent a socioenvironmental (or social-ecological) system aiming to holistically inform policy and decision-making processes. Central to the system-of-sy...
Article
Aphids are economically important wind-borne crop pests worldwide. Forecasting invasions poses the challenge of modelling both the terrestrial and aerial portions of their life cycle in temporally-variable, spatially-heterogeneous environments. Within the context of area-wide pest management, modelling migrations is particularly problematic. We pre...
Article
The mechanistic basis for problem-specific, question-driven ecological simulation models often includes general physical phenomena. Although linking general physical environmental process models with custom-written spatially-explicit ecological models appears conceptually straightforward, practical implementation of such structures is often problem...
Article
Integrating population ecology and aeroecology is important for understanding dispersal dynamics of pest insects that depend on aerial habitats. Sugarcane aphid (Melanaphis sacchari) is an economic pest of sorghum in Asia, Africa, Australia, and South America and recently invaded North America, affecting over 90% of the continent's sorghum producti...
Article
Full-text available
Background: Invasions by non-native plants contribute to loss of ecosystem biodiversity and productivity, modification of biogeochemical cycles, and inhibition of natural regeneration of native species. Japanese stiltgrass (Microstegium vimineum (Trin.) A. Campus) is one of the most prevalent invasive grasses in the forestlands of Tennessee, Unite...
Article
Gene duplications and gene losses are major determinants of genome evolution and phenotypic diversity. The frequency of gene turnover (gene gains and gene losses combined) is known to vary between organisms. Comparative genomic analyses of gene families can highlight such variation; however, estimates of gene turnover may be biased when using highl...
Article
Full-text available
A reference genome sequence for Pseudotsuga menziesii var. menziesii (Mirb.) Franco (Coastal Douglas-fir) is reported, thus providing a reference sequence for a third genus of the family Pinaceae. The contiguity and quality of the genome assembly far exceeds that of other conifer reference genome sequences (contig N50 = 44,136 bp and scaffold N50 =...
Article
Full-text available
Background Loblolly pine (Pinus taeda L.) is one of the most widely planted and commercially important forest tree species in the USA and worldwide, and is an object of intense genomic research. However, whole genome resequencing in loblolly pine is hampered by its large size and complexity and a lack of a good reference. As a valid and more feasi...
Article
Full-text available
Adaptive evolutionary processes in plants may be accompanied by episodes of introgression, parallel evolution and incomplete lineage sorting that pose challenges in untangling species evolutionary history. Genus Pinus (pines) is one of the most abundant and most studied groups among gymnosperms, and a good example of a lineage where these phenomena...
Article
Full-text available
Invasive plants decrease biodiversity, modify vegetation structure, and inhibit growth and reproduction of native species. Japanese honeysuckle (Lonicera japonica Thunb.) is the most prevalent invasive vine in the forestlands of eastern Texas. Hence, we aimed to identify potential factors influencing the distribution of the species, quantify the re...
Article
Full-text available
Loblolly pine (Pinus taeda L.) is an intensely studied species that has become a model system for conifers. It is one of the most important commercial crops in the southeastern United States and grows across a vast territory. Due to exposure to this current diverse environment and the fluctuating climatic conditions of the past, it has likely accum...
Conference Paper
Full-text available
Background/Question/Methods Pines are keystone species playing critical role as the backbone of pine forest ecosystems and providing habitat for numerous other species. They are also one of the most important crops in the USA. The phylogenetic relationships within Southern pines (genus Pinus, section Trifoliae, subsection Australes), native to th...
Article
Full-text available
Economic costs associated with the invasion of nonnative species are of global concern. We estimated expected costs of Chinese tallow (Triadica sebifera (L.) Small) invasions related to timber production in southern U.S. forestlands under different management strategies. Expected costs were confined to the value of timber production losses plus cos...
Article
Aim  We present an integrated approach for predicting future range expansion of an invasive species (Chinese tallow tree) that incorporates statistical forecasting and analytical techniques within a spatially explicit, agent-based, simulation framework.Location  East Texas and Louisiana, USA.Methods  We drew upon extensive field data from the US Fo...
Data
Correlation of alternative splicing ratio and number of all CDSs. Only 12 species with alternative splicing were considered. (TIF)
Data
Correlation of mean CDS length and mean exon length in the genomes of 36 species. (TIF)
Data
Correlation of alternative splicing ratio and exon/gene ratio. Only 12 species with alternative splicing were considered. (TIF)
Data
Exon-intron gene structure in completely sequenced genomes of 56 species. (XLS)
Data
Correlation of number of all genes and number of all exons in the genomes of 36 species. (TIF)
Data
Correlation of number of protein coding genes and exon/gene ratio in the genomes of 36 species. (TIF)
Data
Correlation of number of all genes and mean exon length in the genomes of 36 species. (TIF)
Data
Correlation of alternative splicing ratio and mean exon length. Only 12 species with alternative splicing were considered. (TIF)
Article
Full-text available
Despite significant advances in high-throughput DNA sequencing, many important species remain understudied at the genome level. In this study we addressed a question of what can be predicted about the genome-wide characteristics of less studied species, based on the genomic data from completely sequenced species. Using NCBI databases we performed a...