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SEROCONVERSION CAN PRECEDE CULTURE CONFIRMED DIAGNOSIS OF INFECTION IN ASIAN ELEPHANTS () BY DECADES.
J Zoo Wildl Med
December 2024
Elephant Sanctuary in Tennessee, Hohenwald, TN 38462, USA.
() infection was diagnosed in 16 human-managed Asian elephants () at four different US facilities. A retrospective review was performed to collate information on serological test results and describe the timelines from exposure to an elephant known to be positive for , detection of antimycobacterial antibodies in the exposed elephant, and isolation from the exposed elephant to confirm diagnosis. Seroconversion was defined by a positive test result using ElephantTB STAT-PAK, multiantigen print immunoassay, or DPP VetTB assay for elephants (Chembio Diagnostic Systems, Inc).
View Article and Find Full Text PDFTwo decades of three-dimensional movement data from adult female northern elephant seals.
Sci Data
December 2024
Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
Northern elephant seals (Mirounga angustirostris) have been integral to the development and progress of biologging technology and movement data analysis, which continue to improve our understanding of this and other species. Adult female elephant seals at Año Nuevo Reserve and other colonies along the west coast of North America were tracked annually from 2004 to 2020, resulting in a total of 653 instrument deployments. This paper outlines the compilation and curation process of these high-resolution diving and location data, now accessible in two Dryad repositories.
View Article and Find Full Text PDFHaplotype-resolved nonaploid genome provides insights into flowering in bamboos.
Hortic Res
December 2024
Germplasm Bank of Wild Species & Yunnan Key Laboratory of Crop Wild Relatives Omics, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Panlong District, Kunming, Yunnan 650201, China.
Woody bamboos (Bambusoideae) are renowned for its polyploidy and rare flowering. is one of the bamboo species with the highest chromosome count (104) in the subfamily and has the highest heterozygosity of all sequenced bamboo genomes so far. Compared with other bamboo species, it can efficiently utilize exogenous hormones to regulate flowering, providing valuable insights into the hormonal regulation of bamboo flowering.
View Article and Find Full Text PDFThe ecology of plant extinctions.
Trends Ecol Evol
December 2024
Center for Integrative Conservation and Yunnan Key Laboratory for the Conservation of Tropical Rainforests and Asian Elephants, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 6663030, China; Honorary Research Associate, Royal Botanic Gardens Kew, Richmond, TW9 3AE, UK. Electronic address:
Extinctions occur when enough individual plants die without replacement to extirpate a population, and all populations are extirpated. While the ultimate drivers of plant extinctions are known, the proximate mechanisms at individual and population level are not. The fossil record supports climate change as the major driver until recently, with land-use change dominating in recent millennia.
View Article and Find Full Text PDFConsistency and flexibility of character in free-ranging male African elephants across time, age, and social contexts.
PLoS One
December 2024
Department of Biological Sciences, Clark Science Center, Smith College, Northampton, MA, United States of America.
Article Synopsis
- Male African elephants have intricate social networks, and this study analyzed the consistency of their individual personalities across various situations.
- By observing 34 male elephants over five years at a waterhole, researchers identified five behaviors (like aggression and affiliation) that were stable at the individual level and influenced by social contexts, particularly the presence of younger and dominant males.
- The study concluded that younger males tend to show more similar personalities compared to older males, suggesting that while male elephants have distinct character traits, these traits can adapt based on their social surroundings.
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