Publications by authors named "Michael A Hudson"

We provide the first estimates of survival and reproductive rates for a population of the Gambian Epauletted Fruit Bat in Ghana. We focused on a large colony of ca. 5,000 bats over 3 years to estimate population parameters including population size, birth rates, survival, and sex ratios for this species.

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Article Synopsis
  • In 2012, the IUCN initiated the development of the "Green Status of Species" to assess species recovery and the impact of conservation efforts.
  • The Green Status framework includes a method to evaluate species recovery, featuring metrics like conservation legacy and recovery potential, tested on 181 diverse species.
  • Findings showed that 59% of species were largely or critically depleted, highlighting that recovery status differs from extinction risk, and indicating the effectiveness of conservation efforts on the majority of species tested.
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The mountain chicken frog () is a critically endangered frog native to the Caribbean islands of Dominica and Montserrat. Over the past 25 years their populations have declined by over 85%, largely due to a chytridiomycosis outbreak that nearly wiped out the Montserratian population. Within the context of developing tools that can aid in the conservation of the mountain chicken frog, we assembled its complete mitochondrial genome, contributing the first complete mitogenome of the genus Leptodactylus (Genbank Accession number MW260634).

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Comparative assessment of the relative information content of different independent spatial data types is necessary to evaluate whether they provide congruent biogeographic signals for predicting species ranges. Opportunistic occurrence records and systematically collected survey data are available from the Dominican Republic for Hispaniola's surviving endemic non-volant mammals, the Hispaniolan solenodon () and Hispaniolan hutia (); opportunistic records (archaeological, historical and recent) exist from across the entire country, and systematic survey data have been collected from seven protected areas. Species distribution models were developed in maxent for solenodons and hutias using both data types, with species habitat suitability and potential country-level distribution predicted using seven biotic and abiotic environmental variables.

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Long-term baselines on biodiversity change through time are crucial to inform conservation decision-making in biodiversity hotspots, but environmental archives remain unavailable for many regions. Extensive palaeontological, zooarchaeological and historical records and indigenous knowledge about past environmental conditions exist for China, a megadiverse country experiencing large-scale biodiversity loss, but their potential to understand past human-caused faunal turnover is not fully assessed. We investigate a series of complementary environmental archives to evaluate the quality of the Holocene-historical faunal record of Hainan Island, China's southernmost province, for establishing new baselines on postglacial mammalian diversity and extinction dynamics.

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Article Synopsis
  • Emerging infectious diseases, particularly amphibian chytridiomycosis, pose a significant risk to wildlife conservation efforts, leading to declines and extinctions.
  • The study covered seasonal infection patterns in robber frogs on Montserrat and Dominica, noting that infection prevalence and load are influenced by temperature rather than rainfall.
  • The findings highlighted a decrease in infection rates on Montserrat over time and suggest that understanding these disease dynamics can inform better timing for conservation strategies, such as species reintroduction to reduce risk of chytridiomycosis.
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