Article
Biodiversity Conservation
B. M. Hardy, K. L. Pope, E. K. Latch
Summary: Genomic data can assist in species recovery and conservation efforts, especially for catastrophic population declines due to disease. Understanding genetic characteristics of remnant populations affected by disease can directly inform restoration efforts and guide conservation plans and reintroduction strategies.
ANIMAL CONSERVATION
(2021)
Article
Environmental Sciences
Katelyn E. Cunningham, Erin S. Dunlop
Summary: The population of lake whitefish in lakes Huron and Michigan has significantly declined over the past 20 years, possibly due to reduced recruitment of juvenile fish. One hypothesis is that dreissenid mussels have reduced the availability of zooplankton for larval lake whitefish, leading to poor growth and survival at this critical life stage.
JOURNAL OF GREAT LAKES RESEARCH
(2023)
Article
Ecology
J. Marshall Wolf, Edd Hammill
Summary: Beavers can enhance wetland areas by converting lotic habitats into lentic ponds, and beaver dam analogues (BDAs) are used to restore ecosystems in North America and Europe. This study investigated the impact of beaver dams and BDAs on amphibian breeding occupancy. Barred tiger salamanders were found in natural beaver ponds, while BDAs had lower occupancy rates. Beaver complexes had less fish abundance and were older and deeper than BDAs. The study suggests that future beaver restoration efforts should focus on the top of effective drainages.
FRESHWATER BIOLOGY
(2023)
Article
Biodiversity Conservation
Talisin T. Hammond, Ronald R. Swaisgood, Leah E. Jacobs, Michelle J. Curtis, Bailey A. McCormick, Jacob A. Hornfeldt, Eric M. Trotman, Debra M. Shier
Summary: Our study found that early-life experience with naturalistic conditions in ex situ facilities can significantly impact morphology, performance, and post-translocation movement and survival, and that the effects are age dependent. Providing critical experiences during development and releasing younger animals better prepared for life in the wild may be a cost-effective recovery strategy.
JOURNAL OF APPLIED ECOLOGY
(2022)
Article
Environmental Sciences
J. Bouffard, V Careau, S. A. Robinson, P. Bergeron
Summary: This study investigates the interactions between neonicotinoids and natural environmental stressors in wood frogs and highlights the importance of including behavioral assays and natural stressors in studies of amphibian ecotoxicology. The results show that imidacloprid and population density can affect the behavior and development of wood frogs, especially in the presence of predation cues.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Agriculture, Dairy & Animal Science
Haijun Wei, Longwu Geng, Xinchi Shang, Guo Hu, Peixian Luan, Wei Xu
Summary: The background color has an impact on the welfare of captive brown frogs. The study found that brown frogs prefer black backgrounds, regardless of feeding and time of day. Therefore, it is recommended to use more black backgrounds for captive brown frogs to provide a suitable living environment.
APPLIED ANIMAL BEHAVIOUR SCIENCE
(2023)
Article
Environmental Sciences
C. E. Robinson, C. K. Elvidge, R. A. Frank, J. V. Headley, L. M. Hewitt, A. G. Little, S. A. Robinson, V. L. Trudeau, I. J. Vander Meulen, D. M. Orihel
Summary: This study investigates the effects of organic compounds in oil sands process-affected water on wood frogs. The results show that these compounds have no significant effect on mating behavior and fertility, but they decrease offspring viability and development, which may impact the recruitment of native amphibian populations.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biodiversity Conservation
Amy M. Van Cise, Robin W. Baird, Annette E. Harnish, Jens J. Currie, Stephanie H. Stack, Tori Cullins, Antoinette M. Gorgone
Summary: Research on common bottlenose dolphin populations in the waters surrounding the main Hawaiian Islands focused on estimating annual apparent survival and abundance, revealing a decline in abundance estimates for three out of four stocks, though not significant, with apparent survival rates below expected values.
ENDANGERED SPECIES RESEARCH
(2021)
Review
Fisheries
Matthijs Metselaar, Massimo Orioles, Marco Galeotti, Alexandra Adams, Kim D. Thompson
Summary: Red mark syndrome (RMS) is a skin condition affecting rainbow trout aquaculture, first reported in the United States and subsequently spreading to other parts of the world. It causes economic loss to the industry and has been associated with two pathogens, although the exact cause is still unknown.
Article
Multidisciplinary Sciences
Donovan A. Bell, Ryan P. Kovach, Clint C. Muhlfeld, Robert Al-Chokhachy, Timothy J. Cline, Diane C. Whited, David A. Schmetterling, Paul M. Lukacs, Andrew R. Whiteley
Summary: This study found that climate change has negative impacts on the distributions of native and invasive trout species in the northern Rocky Mountains of the USA. The occupancy rates of bull trout and cutthroat trout decreased over time, with different reasons behind these declines, requiring species-specific management actions.
Article
Developmental Biology
Svetlana A. Kaurova, Victor K. Uteshev, Andrew B. Gapeyev, Natalia V. Shishova, Edith N. Gakhova, Robert K. Browne, Ludmila I. Kramarova
Summary: The successful cryopreservation of testicular spermatozoa of the common frog Rana temporaria was described, with results showing a significant decrease in quality after 4 days of storage when treated with DMF. DMSO had a toxic effect on the spermatozoa. Low levels of DNA fragmentation were observed.
REPRODUCTION FERTILITY AND DEVELOPMENT
(2021)
Article
Biodiversity Conservation
Jacob M. Hutton, Steven J. Price, Stephen C. Richter, Christopher D. Barton
Summary: Changes in land use, such as mountaintop removal mining with valley fills, often lead to headwater streams with elevated specific conductivity (SC), which affects stream salamanders. Increased SC indirectly impacts stream salamander populations by altering the composition of their diet, reducing food availability and ultimately leading to reduced population occupancy and abundance.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Environmental Sciences
Ana del Arco, Inmaculada Alvarez-Manzaneda, Ana Funes, Carmen Perez-Martinez, Inmaculada de Vicente
Summary: The study evaluated the toxic effects of novel phosphorus (P) adsorbents (magnetic particles, MPs) on phytoplankton community in a hypertrophic Mediterranean lake. Results showed that MPs did not cause any toxic effects on the phytoplankton community of the lake, encouraging the use of MPs in a future whole-lake restoration strategy.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Biodiversity Conservation
Luis Felipe Toledo, Sergio Potsch de Carvalho-e-Silva, Ana Maria Paulino Telles de Carvalho-e-Silva, Joao Luiz Gasparini, Delio Baeta, Raoni Reboucas, Celio F. B. Haddad, C. Guilherme Becker, Tamilie Carvalho
Summary: Amphibian declines are a global problem, and Brazil's Atlantic Forest is a hotspot for these declines. Previous reports underestimated the extent and complexity of historical declines in amphibian populations. Our refined review reveals that the Atlantic Forest has one of the highest rates of amphibian declines and extinctions globally.
BIOLOGICAL CONSERVATION
(2023)
Article
Marine & Freshwater Biology
Ulrich Pulg, Robert J. Lennox, Sebastian Stranzl, Espen O. Espedal, Sven Erik Gabrielsen, Tore Wiers, Gaute Velle, Christoph Hauer, Bjorn Otto Donnum, Bjorn T. Barlaup
Summary: This study investigated the long-term effects of gravel additions at eight sites in three rivers in western Norway over a period of up to 18 years. Results showed that gravel additions significantly increased juvenile densities of Atlantic salmon and Brown trout, with egg survival rates remaining high. However, the areas covered with gravel were shrinking over time. Construction costs for the gravel augmentations were relatively low, with a cost-benefit ratio that indicated the measure was successful in enhancing salmonid fish reproduction.