Article
Biodiversity Conservation
K. M. Stemp, T. L. Anderson, J. M. Davenport
Summary: Interactions between top and intermediate predators can have significant effects on community structure of food webs, with outcomes that are highly variable and context-dependent. In an experimental study, A. opacum significantly reduced the survival of other prey species, while B. vinosa did not show strong predation behavior compared to other Aeshnidae members.
Article
Entomology
Laura Golsteyn, Hana Mertens, Joachim Audenaert, Ruth Verhoeven, Bruno Gobin, Patrick De Clercq
Summary: Both ladybird Cryptolaemus montrouzieri and green lacewing Chrysoperla carnea have potential for controlling mealybug pests in greenhouse crops, but a laboratory study found frequent attacks between the predators, with lacewing larvae being the dominant predators. The addition of extraguild prey reduced the incidence of attacks between the predators.
Article
Biodiversity Conservation
Klaus Birkhofer, El Aziz Djoudi, Benjamin Schnerch, Radek Michalko
Summary: This meta-analysis examines the impact of global change on the relative importance of different prey groups in spider diets. It finds that climatic conditions, land-use types, and functional traits of spider species all play a role in determining the importance of Hemiptera, Araneae, and Collembola prey. Future increases in temperature seasonality and conversion of non-agricultural to agricultural land are predicted to increase the importance of Collembola prey in spider diets.
Article
Entomology
Marzieh Mohammadpour, J. P. Michaud, Mojtaba Hosseini, Javad Karimi, Vahid Hosseininaveh
Summary: The parasitism of T. brassicae affected the foraging behavior of N. pseudoferus, leading to rejection of older parasitized eggs, increased grooming and probing activities, and different functional responses to eggs of different ages. This interaction may provide a partial refuge for T. brassicae in older eggs, potentially enhancing joint augmentation of both species against T. absoluta.
Article
Mathematical & Computational Biology
Evgeniya Giricheva
Summary: This study investigates the dynamics of a three-component food web with intraguild predation. The interactions among prey, intermediate predator, and top predator are described by a system of ordinary differential equations. The model is analyzed without self-limitation of the predators, and then with self-limitation. The results show that under certain conditions, one of the predators can go extinct, and coexistence between the three species can occur when there is intraspecific competition among the predators in a resource-rich environment.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2023)
Article
Ecology
Stella F. Uiterwaal, Amber J. Squires, Bennett A. Grappone, Brian Dillard, Ariadne Castaneda, Sora L. Kim, John P. DeLong
Summary: It has been unclear which coexistence mechanism, niche differentiation or intraguild predation, predominates in consumer communities due to the limited ability to quantify diets from metabarcoding data. This study combines a metabarcoding quantification approach with stable isotope analysis to examine diet composition in a wolf spider community. The results show that extensive intraguild predation is likely the primary coexistence mechanism in this community, and other factors do not explain diet composition and intraguild predation.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Ecology
Andrew T. Davidson, Elizabeth A. Hamman, Michael W. McCoy, James R. Vonesh
Summary: Warming can alter the rate at which predators consume prey and prey develop, impacting consumer-resource interactions. The differential effects of temperature on predator and prey responses determine the overall effect of predation on prey survival, either reducing or maintaining predation strength across a temperature gradient. More mechanistic understanding is needed to predict how warming affects food web dynamics accurately.
FUNCTIONAL ECOLOGY
(2021)
Article
Ecology
Gaku Takimoto, Shota Nishiiima
Summary: Predation plays important roles in structuring ecological communities and the mesopredator release effect poses challenges for predator management and biodiversity conservation. A simple mathematical model has been proposed to clarify the general conditions for the occurrence of the mesopredator release effect. The model suggests that this effect occurs when the carrying capacity of the mesopredator exceeds a certain threshold and the top-down effect of the apex predator is greater on the mesopredator than on their shared prey.
Article
Microbiology
Guntram Weithoff, Elanor M. Bell
Summary: Extreme habitats often have unique communities with different species compositions compared to non-extreme habitats. In this study, we investigated the trophic interactions between a predatory protist and its prey in an extremophilic community. Our results revealed the complexity of these interactions and the impact of resource availability on the abundance of different species.
Article
Biology
Alberto Bortoni, Sharon M. Swartz, Hamid Vejdani, Aaron J. Corcoran
Summary: A predator's ability to catch prey depends on its navigation skills in response to prey movements. The pursuit behavior of Townsend's big-eared bat varies, as it relies on a slow and agile flight to stealthily approach prey and reacts to prey movements using a combination of pure pursuit and proportional navigation.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Review
Ecology
Cristian N. Waggershauser, Lise Ruffino, Kenny Kortland, Xavier Lambin
Summary: New vertebrate communities are emerging in Europe as multiple native predators recover in highly anthropized landscapes. These communities present challenges and opportunities for conservationists and wildlife managers to study species interactions. A systematic literature review revealed a highly interconnected predator community in Europe, with various lethal interactions among forest-grouse predators, highlighting the complexities of predator-predator interactions.
ECOLOGY AND EVOLUTION
(2021)
Article
Biology
Ashley N. Peterson, Matthew J. McHenry
Summary: This study examines the strategy of red lionfish in pursuing faster prey. The behavior of successfully capturing prey is defined as the "persistent-predation strategy", which includes pure pursuit, uninterrupted motion, and high success rate in strike.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Biotechnology & Applied Microbiology
Ismail Doker, Alexandra M. Revynthi, Cengiz Kazak, Daniel Carrillo
Summary: Intraguild interactions among four predatory mite species were investigated to evaluate their effects on the biological control of two-spotted spider mite (TSSM) populations on papaya plants. Results showed that Neoseiulus longispinosus was effective in suppressing TSSM populations, while the presence of aggressive intraguild predator, Amblyseius swirskii, led to gradual increases in TSSM populations. High levels of cannibalism, intraguild predation, and releases of aggressive intraguild predators could negatively impact the biocontrol of TSSM on papaya plants.
BIOLOGICAL CONTROL
(2021)
Article
Zoology
G. -c. Hsu
Summary: An experimental framework combining controlled feeding trials and stable isotope analysis is proposed to quantify the degree of intraguild predation (IGP) in an omnivorous food web in the field. The degree of IGP is defined as the proportion of mesopredators consumed in the total diet of top predators. The framework leverages different experimental approaches to provide a practical tool for accurately and realistically quantifying IGP.
JOURNAL OF ZOOLOGY
(2023)
Article
Entomology
Margarita Rocca, Maria Florencia Diaz Lucas, Nancy Mabel Greco
Summary: This study found that the coexistence of Eriopis connexa and Cycloneda sanguinea in sweet-pepper crops can be explained by temporal niche complementarity. Although they cooccur spatially, they are segregated at the leaf level to prevent negative trophic interactions. Under semifield conditions, possible negative trophic interactions did not affect aphid control, but the density of C. sanguinea was reduced.
ENVIRONMENTAL ENTOMOLOGY
(2022)
Article
Multidisciplinary Sciences
J. Hardin Waddle, Daniel A. Grear, Brittany A. Mosher, Evan H. Campbell Grant, Michael J. Adams, Adam R. Backlin, William J. Barichivich, Adrianne B. Brand, Gary M. Bucciarelli, Daniel L. Calhoun, Tara Chestnut, Jon M. Davenport, Andrew E. Dietrich, Robert N. Fisher, Brad M. Glorioso, Brian J. Halstead, Marc P. Hayes, R. Ken Honeycutt, Blake R. Hossack, Patrick M. Kleeman, Julio A. Lemos-Espinal, Jeffrey M. Lorch, Brome McCreary, Erin Muths, Christopher A. Pearl, Katherine L. D. Richgels, Charles W. Robinson, Mark F. Roth, Jennifer C. Rowe, Walt Sadinski, Brent H. Sigafus, Iga Stasiak, Samuel Sweet, Susan C. Walls, Gregory J. Watkins-Colwell, C. LeAnn White, Lori A. Williams, Megan E. Winzeler
SCIENTIFIC REPORTS
(2020)
Article
Marine & Freshwater Biology
Jon M. Davenport, LeeAnn Fishback, Blake R. Hossack
Article
Zoology
Saidee J. Hyder, Joshua R. Ennen, Jon M. Davenport
Summary: The study revealed that subadult Macrochelys temminckii exhibit seasonal and ontogenetic variations in movement patterns and habitat selection, preferring deeper slough areas with high overstory tree cover. Subadults have larger home ranges than juveniles and their mean distance moved varies significantly among seasons. This highlights the importance of habitat heterogeneity in sustaining populations of introduced M. temminckii.
Article
Zoology
Danielle R. Kirsch, Shawna Fix, Jon M. Davenport, Kristen K. Cecala, Joshua R. Ennen
Summary: Temperature is crucial for the growth and development of anurans, with tadpoles showing a preference for specific temperatures that increase with body length. The findings suggest a potential link between body size and thermal preference, providing opportunities for further research. The broad distribution of H. chrysoscelis also presents opportunities to study how populations respond to environmental temperature shifts.
JOURNAL OF HERPETOLOGY
(2021)
Article
Ecology
Thomas L. Anderson, Jacob J. Burkhart, Jon M. Davenport
Summary: The study reveals that density dependence can impact size-structured interactions among larval salamanders, with earlier-arriving species negatively affecting later-arriving species through predation and competition. Density-dependent effects reinforce asymmetric interactions among larval salamanders, with the intensity of the interactions also mediated by the arrival time and size of conspecifics.
FRESHWATER BIOLOGY
(2021)
Article
Zoology
Dustin Garig, Joshua R. Ennen, Saidee J. Hyder, Taylor Simmonds, Andrew J. Feltmann, Robert Colvin, Jeremy Dennison, Luke Pearson, Brian R. Kreiser, Sarah C. Sweat, Jon M. Davenport
Summary: Western alligator snapping turtles in western Tennessee are at very low densities, likely due to historical habitat modification.
CHELONIAN CONSERVATION AND BIOLOGY
(2021)
Article
Environmental Sciences
Kelly L. Smalling, Emily B. Oja, Danielle M. Cleveland, Jon M. Davenport, Collin Eagles-Smith, Evan H. Campbell Grant, Patrick M. Kleeman, Brian J. Halstead, Kenzi M. Stemp, Brian J. Tornabene, Zachary J. Bunnell, Blake R. Hossack
Summary: This research found differences in metal concentrations in anurans and salamanders, influenced by factors such as body size, developmental stage, and diet. Tissue type was shown to strongly affect perceived metal concentrations, emphasizing the importance of considering these factors in investigations.
ENVIRONMENTAL POLLUTION
(2021)
Article
Ecology
Susan Cragg, Kristen K. Cecala, Shawna M. Fix, Joshua R. Ennen, Jon M. Davenport
Summary: Species interactions are important for determining the biological organization of natural communities. However, in a study conducted in western North Carolina, little evidence was found to suggest that abiotic or biotic factors influenced coexistence between stream salamanders and crayfish. Both in-situ and ex-situ experiments did not show significant effects of refuge density or competitor identity on growth, behavior, or cohabitation among the species studied.
FRESHWATER SCIENCE
(2021)
Article
Biodiversity Conservation
K. M. Stemp, T. L. Anderson, J. M. Davenport
Summary: Interactions between top and intermediate predators can have significant effects on community structure of food webs, with outcomes that are highly variable and context-dependent. In an experimental study, A. opacum significantly reduced the survival of other prey species, while B. vinosa did not show strong predation behavior compared to other Aeshnidae members.
Article
Zoology
Thomas P. Hastings, Blake R. Hossack, LeeAnn Fishback, Jon M. Davenport
Summary: Environmental conditions and habitat characteristics have a significant impact on the physiological conditions and habitat use of wood frogs. Plaster models can be used to estimate water loss rates and surface body temperatures. Wood frogs prefer habitats with higher moisture levels, and environmental conditions such as wind speed and ground temperature can explain the variation in model water balance and temperature.
INTEGRATIVE ZOOLOGY
(2023)
Article
Zoology
Kenzi M. Stemp, Thomas L. Anderson, Jon M. Davenport
Summary: Functional redundancy occurs when different predator species have similar effects on the diversity, abundance, and composition of a prey community. This study found no evidence for functional redundancy between two Ambystomatid salamander predators, as their prey selection and impact on prey diversity differed.
JOURNAL OF HERPETOLOGY
(2022)
Article
Ecology
Roland Kays, Michael V. Cove, Jose Diaz, Kimberly Todd, Claire Bresnan, Matt Snider, Thomas E. Lee, Jonathan G. Jasper, Brianna Douglas, Anthony P. Crupi, Katherine C. B. Weiss, Helen Rowe, Tiffany Sprague, Jan Schipper, Christopher A. Lepczyk, Jean E. Fantle-Lepczyk, Jon Davenport, Marketa Zimova, Zach Farris, Jacque Williamson, M. Caitlin Fisher-Reid, Drew Rezendes, Sean M. King, Petros Chrysafis, Alex J. Jensen, David S. Jachowski, Katherine C. King, Daniel J. Herrera, Sophie Moore, Marius van der Merwe, Jason V. Lombardi, Maksim Sergeyev, Michael E. Tewes, Robert V. Horan, Michael S. Rentz, Ace Driver, La Roy S. E. Brandt, Christopher Nagy, Peter Alexander, Sean P. Maher, Andrea K. Darracq, Evan G. Barr, George Hess, Stephen L. Webb, Mike D. Proctor, John P. Vanek, Diana J. R. Lafferty, Tru Hubbard, Jaime E. Jimenez, Craig McCain, Jorie Favreau, Jack Fogarty, Jacob Hill, Steven Hammerich, Morgan Gray, Christine C. Rega-Brodsky, Caleb Durbin, Elizabeth A. Flaherty, Jarred Brooke, Stephanie S. Coster, Richard G. Lathrop, Katarina Russell, Daniel A. Bogan, Hila Shamon, Brigit Rooney, Aimee Rockhill, Robert C. Lonsinger, M. Teague O'Mara, Justin A. Compton, Erika L. Barthelmess, Katherine E. Andy, Jerrold L. Belant, Tyler Petroelje, Nathaniel H. Wehr, Dean E. Beyer, Daniel G. Scognamillo, Chris Schalk, Kara Day, Caroline N. Ellison, Chip Ruthven, Blaine Nunley, Sarah Fritts, Christopher A. Whittier, Sean A. Neiswenter, Robert Pelletier, Brett A. DeGregorio, Erin K. Kuprewicz, Miranda L. Davis, Carolina Baruzzi, Marcus A. Lashley, Brandon McDonald, David Mason, Derek R. Risch, Maximilian L. Allen, Laura S. Whipple, Jinelle H. Sperry, Emmarie Alexander, Patrick J. Wolff, Robert H. Hagen, Alessio Mortelliti, Amay Bolinjcar, Andrew M. Wilson, Scott Van Norman, Cailey Powell, Henry Coletto, Martha Schauss, Helen Bontrager, James Beasley, Susan N. Ellis-Felege, Samuel R. Wehr, Sean T. Giery, Charles E. Pekins, Summer H. LaRose, Ronald S. Revord, Christopher P. Hansen, Lonnie Hansen, Joshua J. Millspaugh, Adam Zorn, Brian D. Gerber, Kylie Rezendes, Jessie Adley, Jennifer Sevin, Austin M. Green, Cagan H. Sekercioglu, Mary E. Pendergast, Kayleigh Mullen, Tori Bird, Andrew J. Edelman, Andrea Romero, Brian J. O'Neill, Noel Schmitz, Rebecca A. Vandermus, Jesse M. Alston, Kellie M. Kuhn, Steven C. Hasstedt, Damon B. Lesmeister, Cara L. Appel, Christopher Rota, Jennifer L. Stenglein, Christine Anhalt-Depies, Carrie L. Nelson, Robert A. Long, Kathryn R. Remine, Mark J. Jordan, L. Mark Elbroch, Dylan Bergman, Sara Cendejas-Zarelli, Kim Sager-Fradkin, Mike Conner, Gail Morris, Elizabeth Parsons, Haydee Hernandez-Yanez, William J. McShea
Summary: This study presents data from the Snapshot USA 2020, a national mammal survey of the USA. The data includes observations of wild mammals, birds, domestic animals, and humans or their vehicles. The data reveal spatial and temporal differences in species distribution and can be used to study species interactions and their impact on activity patterns.
Article
Zoology
Jon M. Davenport, David A. Beamer, Cody L. Long, J. Trent Waltz, Shelby Wren, Dustin S. Siegel
Summary: This study examined the reproductive life history and population structure of Eurycea chamberlaini. The results showed that both male and female individuals followed a reproductive cycle similar to other salamander species, but spermatidogenesis was delayed. Additionally, females tended to be larger than males, and the overall population structure was similar to other coastal plain salamander species.
ICHTHYOLOGY AND HERPETOLOGY
(2022)
Article
Biodiversity Conservation
Joshua R. Ennen, Kristen K. Cecala, Philip Gould, Robert Colvin, Jeremy Denison, Dustin F. Garig, Saidee Hyder, Lewis Recker, Jon M. Davenport
Summary: The study found a bias related to mesh size in detection probabilities and community composition of freshwater turtles, suggesting researchers should account for the variation in detection probabilities by mesh size. This could prevent erroneous inferences about population trends and changes in diversity within turtle communities, potentially impacting conservation efforts.
WILDLIFE SOCIETY BULLETIN
(2021)
Article
Ecology
Kenzi M. Stemp, Thomas L. Anderson, Jon M. Davenport
Summary: The study investigates geographic variations in species behavior, particularly the potential variability in keystone predator ability across large geographic ranges, which can impact prey diversity.
POPULATION ECOLOGY
(2021)