Explanipedia

Life-History and Ecology Data for the Turtles of the World Open

John B. Iverson, Joshua R. Ennen, Jeffrey E. Lovich · 2025

A Comparison of the Effects of Habitat Type and Human Influence on Occupancy of Freshwater Turtles in the Mississippi Embayment Open

R. Fournier, Joshua R. Ennen, Philip R. Gould, Kristen K. Cecala, Sarah C. Sweat , et al. · 2025

Freshwater turtles are highly diverse in the southeastern United States, yet few studies document how diversity is distributed in agricultural and rural landscapes. Furthermore, most previous work did not compare distributions between pond…

Arsenic Accumulation in Sonora Mud Turtles (Kinosternon sonoriense) in an Unusual Freshwater Food Web Open

Jeffrey E. Lovich, Thomas R. Kulp, Charles A. Drost, Rodrigo Macip‐Ríos, Susan Knowles , et al. · 2025

Montezuma Well is an unusual fishless, spring-fed, desert wetland in central Arizona. Water in the wetland is naturally enriched with > 100 µg/l dissolved geogenic arsenic (As) and supports a simple aquatic food web dominated by a small nu…

Comparative biogeography of North American turtle faunas: Neogene regionalization Open

Christopher W. Hoagstrom, Visotheary Ung, Sarah C. Sweat, Wilfredo A. Matamoros, Joshua R. Ennen · 2022

International audience

Status of the Alligator Snapping Turtle, Macrochelys temminckii, in West Tennessee Open

Dustin Garig, Joshua R. Ennen, Saidee J. Hyder, Taylor Simmonds, Andrew Feltmann , et al. · 2021

Western alligator snapping turtles, Macrochelys temminckii, have experienced population declines throughout most of their distribution. The present study is the first to systematically sample aquatic habitats of western Tennessee to assess…

Issue Information: TOC Open

Andrew Gilbert, Christopher N. Jacques, Joseph Lancaster, Aaron P. Yetter, Heath M. Hagy , et al. · 2021

The sialotranscriptome of the gopher-tortoise tick, Amblyomma tuberculatum Open

Shahid Karim, Deepak Kumar, Steve Adamson, Joshua R. Ennen, Carl P. Qualls , et al. · 2020

Refining genetic boundaries for Agassiz’s desert tortoise (Gopherus agassizii) in the western Sonoran Desert: the influence of the Coachella Valley on gene flow among populations in southern California Open

Jeffrey E. Lovich, Taylor Edwards, Kristin H. Berry, Shellie R. Puffer, Kristy L. Cummings , et al. · 2020

Understanding the influence of geographic features on the evolutionary history and population structure of a species can assist wildlife managers in delimiting genetic units (GUs) for conservation and management. Landscape features includi…

Wind, sun, and wildlife: do wind and solar energy development ‘short-circuit’ conservation in the western United States? Open

Mickey Agha, Jeffrey E. Lovich, Joshua R. Ennen, Brian D. Todd · 2020

Despite the trade-offs between renewable energy development, land use, humans, and wildlife, wind and solar development continues to transform the western US into a green energy landscape. While renewable energy reduces carbon emissions an…

Data for: Turtle biogeography: Global regionalization and conservation priorities Open

Joshua R. Ennen, Christopher W. Hoagstrom, Mickey Agha, Wilfredo A. Matamoros, Anders G. J. Rhodin , et al. · 2019

1. Presence-absence matrix with turtle species by HydroBASIN level-6 2. Biodiversity and conservation parameters used in the classification tree analyses.

Global Conservation Status of Turtles and Tortoises (Order Testudines) Open

Anders G. J. Rhodin, Craig B. Stanford, Peter Paul van Dijk, Carla C. Eisemberg, Luca Luiselli , et al. · 2018

We present a review and analysis of the conservation status and International Union for Conservation of Nature (IUCN) threat categories of all 360 currently recognized species of extant and recently extinct turtles and tortoises (Order Tes…

Harnessing cross-border resources to confront climate change Open

Octavio Aburto‐Oropeza, Andrew F. Johnson, Mickey Agha, Edith B. Allen, Michael F. Allen , et al. · 2018

Macroecological patterns of sexual size dimorphism in turtles of the world Open

Mickey Agha, Joshua R. Ennen, A. Justin Nowakowski, Jeffrey E. Lovich, Sarah C. Sweat , et al. · 2017

Sexual size dimorphism (SSD) is a well‐documented phenomenon in both plants and animals; however, the ecological and evolutionary mechanisms that drive and maintain SSD patterns across geographic space at regional and global scales are und…

Climate Change and Collapsing Thermal Niches of Mexican Endemic Reptiles Open

Barry Sinervo, Rafael A. Lara‐Reséndiz, Donald B. Miles, Jeffrey E. Lovich, Joshua R. Ennen , et al. · 2017

Author(s): Sinervo, Barry; Lara Resendiz, Rafael A; Miles, Donald B; Lovich, Jeffrey E; Ennen, Joshua R; Muller, Johannes; Cooper, Robert D; Rosen, Philip C; Stewart, Joseph A. E; Santos, Juan Carlos; Sites Jr., Jack W; Gibbons, Paul M; Go…

Range-Wide and Regional Patterns of Population Structure and Genetic Diversity in the Gopher Tortoise Open

Daniel Gaillard, Joshua R. Ennen, Brian R. Kreiser, Carl P. Qualls, Sarah C. Sweat , et al. · 2017

The gopher tortoise (Gopherus polyphemus) has experienced dramatic population declines throughout its distribution in the southeastern United States and is federally listed as threatened in the area west of the Tombigbee and Mobile rivers.…

The evolution of different maternal investment strategies in two closely related desert vertebrates Open

Joshua R. Ennen, Jeffrey E. Lovich, Roy C. Averill‐Murray, Charles B. Yackulic, Mickey Agha , et al. · 2017

We compared egg size phenotypes and tested several predictions from the optimal egg size (OES) and bet‐hedging theories in two North American desert‐dwelling sister tortoise taxa, Gopherus agassizii and G. morafkai , that inhabit different…

Corrigendum: Using climate, energy, and spatial-based hypotheses to interpret macroecological patterns of North America chelonians Open

Joshua R. Ennen, Mickey Agha, Wilfredo A. Matamoros, Sarah C. Hazzard, Jeffrey E. Lovich · 2016

Using climate, energy, and spatial-based hypotheses to interpret macroecological patterns of North America chelonians Open

Joshua R. Ennen, Mickey Agha, Wilfredo A. Matamoros, Sarah C. Hazzard, Jeffrey E. Lovich · 2016

Our study investigates how factors, such as latitude, productivity, and several environmental variables, influence contemporary patterns of the species richness in North American turtles. In particular, we test several hypotheses explainin…

Graptemys pearlensis Ennen, Lovich, Kreiser, Selman, and Qualls 2010 – Pearl River Map Turtle. Open

Joshua R. Ennen, Jeffrey E. Lovich, Robin L. Jones · 2016

The Pearl River Map Turtle, Graptemys pearlensis (Family Emydidae), is a moderatesized aquatic turtle endemic to the Pearl River drainage of Louisiana and Mississippi.This taxon has long been a cryptic species, as it was considered part of…

Intersexual allometry differences and ontogenetic shifts of coloration patterns in two aquatic turtles, <i>Graptemys oculifera</i> and <i>Graptemys flavimaculata</i> Open

Joshua R. Ennen, Peter V. Lindeman, Jeffrey E. Lovich · 2015

Coloration can play critical roles in a species' biology. The allometry of color patterns may be useful for elucidating the evolutionary mechanisms responsible for shaping the traits. We measured characteristics relating to eight aspects o…

Not putting all their eggs in one basket: bet-hedging despite extraordinary annual reproductive output of desert tortoises Open

Jeffrey E. Lovich, Joshua R. Ennen, Charles B. Yackulic, Kathie Meyer-Wilkins, Mickey Agha , et al. · 2015

Bet-hedging theory makes the counter-intuitive prediction that, if juvenile survival is low and unpredictable, organisms should consistently reduce short-term reproductive output to minimize the risk of reproductive failure in the long-ter…

Joshua R. Ennen YOU? Author Swipe