1,280 results match your criteria: "Center for Conservation[Affiliation]"

Physiological effects of research handling on the northern elephant seal (Mirounga angustirostris).

Comp Biochem Physiol A Mol Integr Physiol

January 2025

Moss Landing Marine Laboratories, San José State University, 8272 Moss Landing Road, Moss Landing, CA 95039, United States.

Article Synopsis
  • Wildlife researchers face the challenge of capturing and handling animals for data collection while minimizing stress impacts on their results.
  • A study on juvenile northern elephant seals showed a moderate stress response from handling, with temporary hormonal changes and slight alterations in blood parameters, but indicators of stress returned to normal quickly.
  • The seals were successfully resighted in the wild after translocation, demonstrating that while handling induces short-term physiological stress, it does not cause long-term harm, making them suitable for research.
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Acclimation and size influence predation, growth, and survival of sexually produced Diploria labyrinthiformis used in restoration.

Sci Rep

November 2024

Department of Marine Biology and Ecology, Rosentiel School of Marine, Atmospheric, and Earth Science, University of Miami, Miami, FL, USA.

Stony coral tissue loss disease (SCTLD) has swept through Florida reefs and caused mass mortality of numerous coral species. In the wake of these losses, efforts are underway to propagate coral species impacted by SCTLD and promote population recovery. However, numerous knowledge gaps must be addressed to effectively grow, outplant, and restore populations of the slower growing, massive species that were lost.

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Despite serum ferritin's potential as an iron status indicator, its concentrations vary significantly throughout a black rhinoceros's (Diceros bicornis) life, sometimes irrespective of iron load. We explored acute phase response-related biomarkers, serum amyloid A (SAA) and ceruloplasmin (Cp), to better understand the mechanisms influencing serum ferritin changes in managed black rhinoceroses. The objective was to evaluate the relationships between circulating levels of ferritin, SAA, and Cp in black and white rhinoceroses (Ceratotherium simum).

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Metacollinia emscheri n. sp., a novel sanguicolous apostome ciliate of freshwater amphipods (Gammarus spp.).

J Invertebr Pathol

November 2024

National Horizons Centre, Teesside University, Darlington DL1 1HG, United Kingdom; School of Health and Life Sciences, Teesside University, Middlesbrough TS1 3BX, United Kingdom.

We describe a novel sanguicolous parasitic ciliate, Metacollinia emscheri n. sp., found in the freshwater amphipods Gammarus pulex and G.

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The Biodiversity Credit Market needs rigorous baseline, monitoring, and validation practices.

NPJ Biodivers

October 2024

Smithsonian National Zoo and Conservation Biology Institute, Center for Conservation and Sustainability, Washington, DC, USA.

The nascent Biodiversity Credit Market (BCM) aims to boost biodiversity funding but mirrors the flawed carbon credit market. To ensure success, BCM should (1) use dynamic baselines with control sites, (2) monitor the populations dynamics of a large array of vertebrate and invertebrate species, and (3) assign credits through an independent, transparent, and cost-effective validation process.

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Automatic detection for bioacoustic research: a practical guide from and for biologists and computer scientists.

Biol Rev Camb Philos Soc

October 2024

Behavioural Ecology Research Group, School of Life Sciences, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, UK.

Article Synopsis
  • * Advances in computing and machine learning offer solutions for automatic analysis of acoustic data, but the field is still developing and faces challenges in bridging the gap between biology and technology.
  • * This review outlines trends in bioacoustic PAM, introduces machine learning applications, and offers a practical guide for researchers on building automatic detection systems while highlighting future directions in the field.
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The animal gut microbiome can have a strong influence on the health, fitness, and behavior of its hosts. The composition of the gut microbial community can be influenced by factors such as diet, environment, and evolutionary history (phylosymbiosis). However, the relative influence of these factors is unknown in most bird species.

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Genome-Wide Identification and Characterization of Diterpenoid Pathway CYPs in and Analysis of Their Expression Patterns under Low Temperature Stress.

Int J Mol Sci

October 2024

Guangdong Provincial Key Laboratory of Crop Genetic Improvement, Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.

is known for its diterpenoid medicinal compounds with antibacterial and anti-inflammatory properties. However, it faces production and cultivation challenges due to low temperatures (LTs). Cytochrome P450 monooxygenases (CYPs) are key enzymes in diterpenoid accumulation.

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Ancient ivory serves as an important witness of time and historical events, offering highly significant insights into the fields of paleontology, mineralogy, materials science, and geochemistry. However, ancient ivory has undergone groundwater corrosion and has a loose porous structure and reduced mechanical strength due to being buried for a long time. Therefore, the temporary reinforcement and preservation of ancient ivory artifacts are a well-known challenge.

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Disentangling the influences of climate change from other stressors affecting the population dynamics of aquatic species is particularly pressing for northern latitude ecosystems, where climate-driven warming is occurring faster than the global average. Chinook salmon (Oncorhynchus tshawytscha) in the Yukon-Kuskokwim (YK) region occupy the northern extent of their species' range and are experiencing prolonged declines in abundance resulting in fisheries closures and impacts to the well-being of Indigenous people and local communities. These declines have been associated with physical (e.

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Introduction: Understanding the microbial diversity and potential functional dynamics within the rhizocompartments of is crucial for unraveling the plant-microbe interactions that influence its medicinal properties.

Methods: This study is the first to characterize the microbiome associated with the rhizocompartments of , including its cultivation medium, rhizosphere, rhizoplane, and root endosphere, using high-throughput sequencing and subsequent bioinformatic analysis.

Results: Bacterial phylogenetic diversity was significantly higher in the endosphere than in the rhizosphere, while fungal α-diversity significantly decreased from the cultivation medium to the endosphere.

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Researchers in the Global South (GS, developing countries) make valuable contributions to the field of comparative physiology, but face economic and scientific disparities and several unique challenges compared with colleagues in the Global North (developed countries). This Perspective highlights some of the challenges, knowledge gaps and disparities in opportunity faced by GS researchers, especially those at early-career stages. We propose collaborative solutions to help address these issues, and advocate for promoting investment and cultural and societal change for a more inclusive research community.

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We describe the geographical variation in tree species composition across Amazonian forests and show how environmental conditions are associated with species turnover. Our analyses are based on 2023 forest inventory plots (1 ha) that provide abundance data for a total of 5188 tree species. Within-plot species composition reflected both local environmental conditions (especially soil nutrients and hydrology) and geographical regions.

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Climate-Smart Siting for renewable energy expansion.

iScience

October 2024

Wild Energy Center, Energy and Efficiency Institute, University of California, Davis, Davis, CA 95616, USA.

Article Synopsis
  • A significant push for renewable energy (RE) expansion is underway to help achieve climate goals, but it may unintentionally threaten species that overlap with RE installations.
  • The proposed "Climate-Smart Siting" framework focuses on balancing RE development with biodiversity conservation by engaging affected communities and using data-driven techniques to pinpoint optimal areas for RE projects.
  • This framework aims to align RE growth with global biodiversity efforts and offers strategies to prevent harm to both wildlife and human populations as climate change continues to impact species ranges.
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Diverse baleen whale acoustic occurrence around two sub-Antarctic islands: A tale of residents and visitors.

Sci Rep

September 2024

Oceans and Coasts Research Branch, Department of Forestry, Fisheries and the Environment, Foreshore, Cape Town, South Africa.

Knowledge on the occurrence and behaviour of baleen whales around sub-Antarctic regions is limited, and usually based on short, seasonal sighting research from shore or research vessels and whaling records, neither of which provide accurate and comprehensive year-round perspectives of these animals' ecology. We investigated the seasonal acoustic occurrence and diel vocalizing pattern of baleen whales around the sub-Antarctic Prince Edward Islands (PEIs) using passive acoustic monitoring data from mid-2021 to mid-2023, detecting six distinct baleen whale songs from Antarctic blue whales, Madagascan pygmy blue whales, fin whales, Antarctic minke whales, humpback whales, and sei whales. Antarctic blue and fin whales were detected year-round whereas the other species' songs were detected seasonally, including a new Antarctic minke whale bio-duck song sub-type described here for the first time.

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Island radiations, such as those of the Australo-Pacific, offer unique insight into diversification, extinction, and early speciation processes. Yet, their speciation and colonization histories are often obscured by conflicting genomic signals from incomplete lineage sorting (ILS) or hybridization. Here, we integrated mitogenomes and genome-wide SNPs to unravel the evolutionary history of one of the world's most geographically widespread island radiations.

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Article Synopsis
  • Passive acoustic monitoring helps track endangered vocal species, but analyzing large audio datasets can be slow and cumbersome.
  • An open-source deep learning framework was developed to automatically detect "great call" vocalizations of Bornean white-bearded gibbons, significantly speeding up the data analysis process.
  • The best model achieved an impressive performance (F score = 0.87), accurately identifying 98% of the calls and matching manual annotations, paving the way for further research on these gibbons' vocal behavior over time.
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Latitudinal gradients in seed predation persist in urbanized environments.

Nat Ecol Evol

October 2024

Instituto Biósfera and Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.

Article Synopsis
  • - Urbanization is transforming cities and suburbs globally, making them more similar to each other and less like the local ecosystems they replaced, but its impact on large-scale ecological patterns is still unclear.
  • - A study across 14,000 km in the Americas found that while seed predation increases from high to low latitudes in natural areas, this latitudinal trend remains strong even in urbanized regions despite significant habitat changes.
  • - Urbanization reduced overall seed predation and vertebrate predation but had no significant effect on invertebrate predation, while increasing predation by ants, suggesting that urbanization can change predator dynamics and influence the evolution of urban species.
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Article Synopsis
  • The Landscape Theory of Food Web Architecture (LTFWA) explores how body size, trophic position, and energy channels interconnect in diverse habitats to maintain system stability, but evidence has been inconsistent across different ecosystems.
  • In a study of the Lake Michigan food web, researchers found a positive correlation between body size and trophic position, with variations based on whether species were supported by pelagic or benthic energy sources.
  • The findings indicated that while native top predators contribute to food web stability by connecting energy pathways, introduced species may disrupt this structure, highlighting the complex impacts of human activity on ecosystem dynamics.
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Ammonium (NH) plays a crucial role in the reproductive processes of key biotic groups in aquatic ecosystems-bivalves. This study aims to elucidate the effects of three different ammonium ion concentrations on sperm vitality, swimming kinematics, and morphology of , , and . The results indicate that the sperm vitality and motility rates of and are inversely proportional to the ammonium concentration, especially in the treatment group with an ammonium concentration of 3 mmol/L, where the decrease in sperm vitality and motility is most significant.

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The mode of reproduction most often seen in snakes is sexual, but studies have noted facultative parthenogenesis in at least six families. Here, we provide evidence for the first observed case of facultative parthenogenesis in a captive Jamaican boa (Chilabothrus subflavus). A 7-year-old female Jamaican boa, isolated since birth, was found to have produced a litter of 15 offspring.

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Complete genome sequence of isolated from a human patient in Japan.

Microbiol Resour Announc

September 2024

Institute for Glyco-core Research iGCORE, Gifu University, Gifu City, Gifu, Japan.

Article Synopsis
  • A new bacterium from the Silvanigrellaceae family was identified in 2021, found in human blood.
  • The complete genome sequence of this bacterium, named GTC16762, was reported from a patient in Japan.
  • Its genome includes a 3.6-Mb chromosome and three circular plasmids.
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Vascular plants and biocrusts ameliorate soil properties serving to increase the stability of the Great Wall of China.

Sci Total Environ

November 2024

Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China. Electronic address:

The Great Wall, as a World Heritage Site, is constructed with rammed earth and is currently facing the threat of erosion from wind and rain. Vascular plants and biocrusts are the main coverings of the Great Wall, and their role in mitigating soil erosion has attracted increased amounts of attention; however, the understanding of their underlying mechanisms is limited. Here, we conducted an extensive survey of vascular plants, biocrusts, soil properties (soil organic and inorganic binding materials, aggregates, and texture), soil aggregate stability, and soil erodibility at the top of the Great Wall in four different defensive zones in Northwest China.

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