Article
Biology
Masafumi Katayama, Tomokazu Fukuda, Takehito Kaneko, Yuki Nakagawa, Atsushi Tajima, Mitsuru Naito, Hitomi Ohmaki, Daiji Endo, Makoto Asano, Takashi Nagamine, Yumiko Nakaya, Keisuke Saito, Yukiko Watanabe, Tetsuya Tani, Miho Inoue-Murayama, Nobuyoshi Nakajima, Manabu Onuma
Summary: iPSCs from three endangered avian species were developed and characterized as a potential resource for their conservation. These iPSCs showed pluripotency markers, expressed pluripotency-related genes, and differentiated into three germ layers. Despite using the same reprogramming factors, the iPSCs from Japanese ptarmigan displayed different cellular characteristics and contributed to chimeras in chicken embryos. This study provides the first evidence of the potential value of iPSCs as a resource for endangered avian species conservation.
COMMUNICATIONS BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Yohay Wasserlauf, Ady Gancz, Amir Ben Dov, Ron Efrat, Nir Sapir, Roi Dor, Orr Spiegel
Summary: Describing animal space use is crucial for conservation efforts, but certain biomes and nocturnal species are understudied. This study focuses on the movement ecology of the Egyptian Nightjar in the arid Dead-sea region. Tracking twelve individuals, it reveals their large home range area, intensive foraging at agricultural fields, and high roosting site fidelity in extremely dry and exposed habitats. This research highlights the importance of understanding space-use of nocturnal animals in arid habitats for effective conservation.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Vincenzo Ferri, Paolo Crescia, Corrado Battisti
Summary: We investigated the impact of discarded bottles on small mammals in a road network in North-Western Sardinia, Italy. Out of 162 bottles, 49 (>30%) contained animal specimens and 26 (16%) trapped 151 small mammals, with insectivorous shrews being the most commonly recorded. Larger bottles showed a higher number of trapped mammals, but the difference compared to smaller bottles was not significant. Abandoned bottles pose a threat to small mammals on this Mediterranean island, attracting endemic shrews and reducing the number and biomass of insectivorous mammals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Anatomy & Morphology
Caroline Gribner, Vanessa Barbosa, Luciane Mendes Monteiro, Juliane Nadal Dias Swiech, Vijayasankar Raman, Jane Manfron, Obdulio Gomes Miguel, Deise Prehs Montrucchio, Josiane de Fatima Gaspari Dias
Summary: This article investigates the morpho-anatomies of the leaves and stems of Ocotea paranaensis using microscopy techniques. The study reveals the presence of simple non-glandular trichomes, large secretory cells, unique petioles, and various cellular components such as starch grains and calcium oxalate crystals. The researchers also identified lignin, lipophilic contents, and phenolic compounds in different tissues. These findings have implications for the taxonomy and authentication of O. paranaensis.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Ecology
Catherine Peters, Matthew Geary, Charlotte Hosie, Howard Nelson, Bonnie Rusk, Anna Muir
Summary: The critically endangered Grenada Dove is facing a decrease in genetic diversity due to habitat fragmentation. This study used non-invasive samples to assess the genetic diversity of Grenada Dove populations, revealing low mitochondrial genetic diversity and evidence of genetic isolation. Urgent conservation actions, including habitat protection and potential gene flow augmentation through translocation, are necessary for the long-term survival of this species.
ECOLOGY AND EVOLUTION
(2023)
Article
Parasitology
Yuxiao Han, Olof Hellgren, Qiang Wu, Juan Liu, Tinghao Jin, Staffan Bensch, Ping Ding
Summary: In this study, the infection intensity of birds was measured using qPCR, and it was found that the intensity varies with seasons. Winter migratory birds have higher infection intensity, but they rarely share parasites with resident birds. The different infection patterns of different parasite species may be determined by vectors or other ecological properties.
PARASITES & VECTORS
(2023)
Article
Biodiversity Conservation
P. J. Taillie, S. R. Jolly, L. R. Bobay, S. Sneckenberger, R. A. McCleery
Summary: The endangered silver rice rat was found to occur mainly in regularly inundated mangroves, while the invasive black rat was widespread. There was temporal resource partitioning observed between these two species, indicating limited competition.
ANIMAL CONSERVATION
(2021)
Article
Biodiversity Conservation
C. J. Carpouron, N. Zuel, M. L. F. Monty, F. B. V. Florens
Summary: The Mauritius Kestrel, once the rarest kestrel worldwide, became an icon of bird conservation after recovering from a population of only 4-6 individuals in 1974 to around 800 individuals by 2005. However, its population declined by half within a decade, leading to a re-evaluation of its conservation status. The causes of this decline and the influence of habitat structure and diet on breeding success have received little attention so far.
JOURNAL FOR NATURE CONSERVATION
(2023)
Article
Biodiversity Conservation
John H. Neddermeyer, Katy L. Parise, Erika Dittmar, Marm Kilpatrick, Jeffrey T. Foster
Summary: Climate change, habitat degradation, and invasive species pose major threats to biodiversity globally. Avian malaria in Hawai'i serves as a model system to understand the impact of environmental factors on bird populations. This study conducted on the island of O'ahu showed that avian malaria infections are increasing at higher elevations, indicating that mid-elevation forests in the Hawaiian Islands may provide permissive conditions for year-round infection. The findings suggest that climate change can drive native species to extinction by expanding the range of infectious diseases.
BIOLOGICAL CONSERVATION
(2023)
Article
Biodiversity Conservation
Ilaria Bernabo, Maurizio Biondi, Viviana Cittadino, Emilio Sperone, Mattia Iannella
Summary: Climate and land cover changes are important factors causing the decline of amphibians' populations worldwide. This study used a combination of climate-based ecological niche models and GIS techniques to predict the distribution of the endemic Italian yellow-bellied toad in the Mediterranean area. The findings show that the toad's suitability varies with latitude, with potential future losses of genetic diversity in the Central Apennines populations. The coverage of protected areas is currently low and predicted to decrease in the future, except in the Southern Apennines where an increase is expected.
GLOBAL ECOLOGY AND CONSERVATION
(2022)
Article
Plant Sciences
Yiling Wang, Yafei Lan, Hang Ye, Xiaolong Feng, Qiyang Qie, Li Liu, Min Chai
Summary: This study provides the first detailed report on the reproductive biology and breeding systems of Opisthopappus longilobus and Opisthopappus taihangensis. Both species have similar floral syndromes and require insect pollination. Hymenopteran and Diptera species were observed as effective pollinators. The results also suggest that in the absence of insect pollination, self-pollination plays an important role in seed production, particularly in harsh environments like the Taihang Mountains cliffs.
Article
Biochemistry & Molecular Biology
Rebecca G. Cheek, Brenna R. Forester, Patricia E. Salerno, Daryl R. Trumbo, Kathryn M. Langin, Nancy Chen, T. Scott Sillett, Scott A. Morrison, Cameron K. Ghalambor, W. Chris Funk
Summary: This study investigated the genetic divergence mechanism of a bird species endemic to a small island. The island scrub-jay on Santa Cruz Island showed genetic differentiation related to habitat type and bill length. Neutral landscape genomic analyses revealed that the genetic differentiation was primarily influenced by geographic distance and habitat composition. Putatively adaptive loci associated with habitat type were identified using multivariate redundancy analysis. Genome-wide association analyses revealed the polygenic basis of bill length variation. These findings support the hypothesis that divergent selection can lead to adaptive divergence at microgeographic scales in the presence of ongoing gene flow.
Article
Biodiversity Conservation
Ann P. Marshall, Fred A. Amidon, Richard J. Camp, P. Marcos Gorresen, Paul M. Radley
Summary: Insular species, particularly birds, face high levels of extinction and decline, with conservation efforts needed to protect and restore populations in order to prevent further loss.
BIRD CONSERVATION INTERNATIONAL
(2021)
Article
Ornithology
Christopher J. W. McClure, Hana C. Weaver, Melissa Murillo, Julio Gallardo, Russell Thorstrom
Summary: Conservationists faced a tradeoff between continuing double clutching for the Puerto Rican Sharp-shinned Hawk or spraying nests with insecticide. They developed a model that showed if at least eight nests were sprayed, double clutching could be stopped. This exercise demonstrated informed decision making in uncertain situations.
JOURNAL OF RAPTOR RESEARCH
(2023)
Article
Genetics & Heredity
Yong Wang, Hai-Tao Wang, Yu-Kai Chen, Jing Yu, Yong Yang
Summary: Madhuca hainanensis is an endangered and endemic species in Hainan Island, with a complete chloroplast genome length of 159,630 bp containing 131 genes and a GC content of 36.8%. Phylogenetic analysis suggests a close relationship between M. hainanensis and Sinosideroxylon wightianum.
MITOCHONDRIAL DNA PART B-RESOURCES
(2021)
Article
Marine & Freshwater Biology
Seth W. Judge, Steven C. Hess, Jonathan K. Faford, Dexter Pacheco, Christina R. Leopold
Article
Behavioral Sciences
Patrick J. Hart, Esther Sebastian-Gonzalez, Ann Tanimoto, Alia Thompson, Tawn Speetjens, Madolyn Hopkins, Michael Atencio-Picado
Article
Ornithology
Seth W. Judge, Jacqueline M. Gaudioso, P. Marcos Gorresen, Richard J. Camp
WILSON JOURNAL OF ORNITHOLOGY
(2012)
Article
Ecology
Patrick J. Hart, Thomas Ibanez, Shea Uehana, Joshua Pang-Ching
RESTORATION ECOLOGY
(2020)
Article
Ornithology
Alex X. Wang, Eben H. Paxton, Hanna L. Mounce, Patrick J. Hart
JOURNAL OF FIELD ORNITHOLOGY
(2020)
Article
Ecology
Karen V. Gallardo Cruz, Kristina L. Paxton, Patrick J. Hart
Summary: This study shows a strong association between increasing helicopter noise and songbird vocalizations, with species-specific responses and differences in resilience. Bird response to helicopter noise is strongest in areas with very loud and frequent helicopter traffic, suggesting potential management strategies to reduce impacts.
Article
Ornithology
Keith Burnett, Richard J. Camp, Patrick J. Hart
Summary: The Kohala volcano hosts a spatially isolated population of Hawaiian forest birds that have not been monitored since 1979. Recent surveys show increases in population densities for most species, indicating a biologically diverse avian community. Relative occurrence and abundance have also increased for the majority of species, suggesting a positive trend in population dynamics on Kohala.
JOURNAL OF FIELD ORNITHOLOGY
(2021)
Article
Marine & Freshwater Biology
Steven C. Hess, Seth W. Judge
Summary: The study found that the population of axis deer on Maui Island has been steadily increasing, despite efforts to remove over 11,200 deer by hunters and resource managers. To effectively reduce the axis deer population, it is necessary to remove approximately 20-30% of the population each year, with a focus on removing females to accelerate the decline. Selective removal of males may not only be ineffective, but also counterproductive to the goal of reducing the population size.
Biographical-Item
Ornithology
Patrick Hart
Article
Behavioral Sciences
Erin C. Netoskie, Kristina L. Paxton, Eben H. Paxton, Gregory P. Asner, Patrick J. Hart
Summary: The recent development of animal-borne sensors combined with location data has allowed researchers to study how animals modify their behavior in response to specific habitat features. In a study on the endemic Hawaiian thrush, researchers used a novel acoustic transmitter to investigate the vocal behaviors of the bird and how they interacted with different habitat characteristics in a fragmented forest landscape. The study revealed that the use of different vocalization types by the bird varied across the landscape and was associated with distinct habitat features. The research also showed context-specific changes in behavior, including courtship, aggression, and social interactions.