Article
Biodiversity Conservation
Markus A. Roesch, Dennis M. Hansen, Nik C. Cole
Summary: This study investigated the reproductive behavior and success factors of the Guenther's gecko on Round Island, Mauritius. The findings suggest that nest-site suitability has a minimal impact on the reproductive success of the gecko, and their reproductive success is high on the island.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Ecology
Ari Martinez, Liping Zhou, Xingfeng Si, Ping Ding, Eben Goodale
Summary: This study investigates the species-are relationships between mixed-species flocks and the entire bird community in the Thousand Island Lake reservoir system. The findings highlight the impact of nuclear species on flock species richness.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Ecology
Ruijun Su, Wenfei Dai, Yulian Yang, Xuelin Wang, Rui Gao, Mengying He, Chuan Zhao, Junpeng Mu
Summary: The population density of introduced honey bees has a significant impact on the abundance and richness of nectariferous plants and native bumble bees. The increased density of honey bees leads to an increase in host plant abundance and flower/capitulum number per plant, but a decrease in nectar volume per flower, seed mass, and species richness and abundance of native bumble bees.
Article
Biodiversity Conservation
Federico Mendez Sanchez, Alfonso Aguirre-Munoz, Araceli Samaniego, Yuliana Bedolla Guzman, Ana Cardenas Tapia, Evaristo Rojas Mayoral, Mariam Latofski Robles, Patricia Koleff, Aradit Castellanos Vera, Gustavo Arnaud Franco, Luis Felipe Beltran Morales, Alfredo Ortega-Rubio
Summary: San Benito Archipelago is internationally recognized for its importance in conserving seabird species. After successful eradication efforts, the islands were mammal-free until an accidental introduction in 2006. A collaborative effort between local communities, conservationists, and authorities resulted in the successful eradication of the invasive species and the establishment of a Biosphere Reserve.
Article
Biodiversity Conservation
S. Jaquemet, N. Oury, T. Poirout, J. Gadenne, H. Magalon, A. Gauthier
Summary: Elasmobranchs, such as sharks and rays, are declining globally due to overfishing. In the tropical regions of developing countries and island states, small-scale and recreational fisheries have a significant impact on local species. A study on elasmobranch diversity at Reunion Island in the Western Indian Ocean revealed 65 species, with most coral reef-associated species disappearing. However, some species, like the scalloped hammerhead shark and bottlenose wedgefish, exhibited healthy populations in contrast to their decline in the region. The conservation status and extent of isolation of local populations need to be evaluated urgently to identify conservation priorities.
Review
Geosciences, Multidisciplinary
Vineet Kumar Singh, M. K. Roxy
Summary: The north Indian Ocean accounts for 6% of global tropical cyclones annually. Some of the most devastating cyclones have formed in this basin, causing extensive damage. There is a two-way ocean-atmosphere interaction during cyclones, with high sea surface temperatures providing favorable conditions for cyclone formation while cyclones induce cold and salty wakes. The response of the ocean to cyclones varies in different seasons and regions of the north Indian Ocean. The increased cyclone intensification is influenced by rapid warming in the north Indian Ocean associated with global warming.
EARTH-SCIENCE REVIEWS
(2022)
Article
Multidisciplinary Sciences
Evans Effah, Logan Svendsen, D. Paul Barrett, Andrea Clavijo McCormick
Summary: This study examines the interactions between native and introduced plants and insects through volatile organic compounds (VOCs). The results show that invasive plants can disrupt communication between native plants and affect the host-searching behavior of native insects.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Kelig Mahe, Claire Gentil, Blandine Brisset, Hugues Evano, Camille Lepetit, Romane Boymond-Morales, Solene Telliez, Antoine Dussuel, Tevamie Rungassamy, Romain Elleboode, Kirsteen MacKenzie, David Roos
Summary: The study highlights the vulnerability of groupers in Reunion Island due to increasing fishing pressure. By examining five main exploited grouper species, valuable data on reproduction, growth, and species management has been provided.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Sarah Rhea, Blanca E. Camacho, Carrisa W. Amoriello, Maria Correa, Gregory A. Lewbart, Marilyn Cruz, Alberto Velez, Paulina Castillo, Monique Pairis-Garcia
Summary: In the Galapagos Islands, food animal agriculture is driven by smallholder farms and plays a critical role in food safety and security. Assessments of animal welfare conditions on farms located on Floreana Island identified opportunities for improvement in animal health management and timely euthanasia. Efforts to positively impact smallholder farm livelihoods in the Galapagos Islands will sustainably support animal welfare, environmental health, and food safety.
Article
Geology
Joshua L. Bonesso, Nicola K. Browne, Matilda Murley, Shannon Dee, Michael V. W. Cuttler, Victorien Paumard, Dylan Benson, Michael O'Leary
Summary: This study examines the interconnection between the ecological and sedimentary processes of reef islands, focusing on Eva Island in Western Australia. The study reveals the unique sediment composition of molluscs and coral, suggesting a coupling between the source (reef) and sink (island) environments. The findings indicate that while Eva Island may be resilient to immediate climate change impacts, long-term resilience may be compromised due to reliance on sensitive sediment producing habitats and calcifying organisms.
SEDIMENTARY GEOLOGY
(2022)
Article
Zoology
Michelle Klautau, Matheus Vieira Lopes, Gabriela Tavares, Thierry Perez
Summary: The study reveals a lack of knowledge regarding sponges in the Mascarene Islands ecoregion, with only three calcareous sponge species previously identified in La Reunion. Through limited sampling efforts, 11 new calcareous sponge species were discovered, representing a significant increase in species diversity for the region. The proposed synonymization of the order Murrayonida with Clathrinida suggests a reclassification in sponge taxonomy based on the findings of this and previous studies.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Biodiversity Conservation
Berta Ramiro-Sanchez, Alexis Martin, Boris Leroy
Summary: This study evaluates the biogeographic patterns of deep-sea benthic taxa in the Southern Indian Ocean, aiming to understand conservation strategies for the Southern Indian Ocean Fisheries Agreement (SIOFA) management organization. The research reveals a significant lack of distributional data in the area, but identifies unique bioregions. It calls for biodiversity inventories in this region to inform conservation decisions.
BIOLOGICAL CONSERVATION
(2023)
Review
Ecology
Kasey E. E. Barton, Claire Fortunel
Summary: Island floras are diverse and face severe threats. The vulnerability of island species to invasive plants and their ability to resist displacement remains unclear. The assumption that island plants have evolved conservative resource use, slow growth rates, and weak competitive abilities has mixed evidence. Future studies comparing functional strategies of native island and native continental plants, as well as tests for competition between native and invasive island plants, are urgently needed to protect these biodiversity hotspots.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Biodiversity Conservation
Xinyu Miao, Hanchao Zhang, Wenli Xia, Qiang He, Teng Wen, Bo Wang, Shuqing N. Teng, Quan-Xing Liu, Kechang Niu, Chi Xu
Summary: A field survey in two intertidal saltmarsh ecosystems in eastern China revealed a significant correlation between crab burrow density and plant height, but opposite plant-crab relationships were observed between the study sites, possibly due to soil compactness mediating crab burrowing behavior. This highlights the importance of considering environmental context and soil compactness in plant-crab interactions in coastal ecosystems.
ECOLOGICAL INDICATORS
(2021)
Article
Meteorology & Atmospheric Sciences
Lei Zhang, Weiqing Han, Zeng-Zhen Hu
Summary: In 2019, an unprecedented extreme positive Indian Ocean dipole event occurred, leading to disastrous impacts on countries bordering the Indian Ocean. Various factors, including easterly wind bursts, warm sea surface temperature anomalies in the central-western tropical Pacific Ocean, and Madden-Julian oscillation events played key roles in triggering and sustaining the extreme pIOD.
JOURNAL OF CLIMATE
(2021)
Letter
Ecology
Dennis M. Hansen, Jeremy J. Austin, Rich H. Baxter, Erik J. de Boer, Wilfredo Falcon, Sietze J. Norder, Kenneth F. Rijsdijk, Christophe Thebaud, Nancy J. Bunbury, Ben H. Warren
JOURNAL OF BIOGEOGRAPHY
(2017)
Article
Biodiversity Conservation
Thadeu Sobral-Souza, Lais Lautenschlager, Thais Queiroz Morcatty, Carolina Bello, Dennis Hansen, Mauro Galetti
PERSPECTIVES IN ECOLOGY AND CONSERVATION
(2017)
Article
Ecology
Wilfredo Falcon, Rich P. Baxter, Samuel Furrer, Martin Bauert, Jean-Michel Hatt, Gabriela Schaepman-Strub, Arpat Ozgul, Nancy Bunbury, Marcus Clauss, Dennis M. Hansen
ECOLOGY AND EVOLUTION
(2018)
Article
Multidisciplinary Sciences
Torsten M. Scheyer, Massimo Delfino, Nicole Klein, Nancy Bunbury, Frauke Fleischer-Dogley, Dennis M. Hansen
ROYAL SOCIETY OPEN SCIENCE
(2018)
Article
Biology
Wilfredo Falcon, Dennis M. Hansen
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2018)
Article
Veterinary Sciences
Wilfredo Falcon, Samuel Furrer, Martin Bauert, Jean-Michel Hatt, Dennis M. Hansen, Marcus Clauss
Review
Biology
Wilfredo Falcon, Don Moll, Dennis M. Hansen
BIOLOGICAL REVIEWS
(2020)
Article
Multidisciplinary Sciences
E-A Cadena, T. M. Scheyer, J. D. Carrillo-Briceno, R. Sanchez, O. A. Aguilera-Socorro, A. Vanegas, M. Pardo, D. M. Hansen, M. R. Sanchez-Villagra
Article
Zoology
Wilfredo Falcon, Nancy Bunbury, Dennis M. Hansen
Summary: Seed dispersal through endozoochory is crucial worldwide, with seed gut retention time playing a key role. In a study on Aldabra Giant Tortoises, it was found that neither tortoise body size nor ingested seed size affected the patterns and time of defecation. This has implications for seed dispersal and rewilding projects utilizing these tortoises on other oceanic islands.
Article
Biodiversity Conservation
Markus A. Roesch, Dennis M. Hansen, Nik C. Cole
Summary: This study investigated the reproductive behavior and success factors of the Guenther's gecko on Round Island, Mauritius. The findings suggest that nest-site suitability has a minimal impact on the reproductive success of the gecko, and their reproductive success is high on the island.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Ecology
F. Gozde Cilingir, Dennis Hansen, Nancy Bunbury, Erik Postma, Richard Baxter, Lindsay Turnbull, Arpat Ozgul, Christine Grossen
Summary: Aldabrachelys gigantea, one of the last two giant tortoise species in the world, faces an uncertain future due to its limited distribution and high vulnerability to climate change. Captive-bred A. gigantea are introduced in rewilding programs, but little is known about the genetic variation and differentiation within and among the islands on Aldabra. Using low-coverage and ddRAD sequencing, the study detected patterns of within-island population structure and found no differentiation between the islands, emphasizing the importance of using genome-wide genetic markers for future management plans.
ECOLOGY AND EVOLUTION
(2022)
Article
Biology
F. Gozde Cilingir, Luke A'Bear, Dennis Hansen, Leyla R. Davis, Nancy Bunbury, Arpat Ozgul, Daniel Croll, Christine Grossen
Summary: This study presents the first chromosome-level de novo genome assembly of the Aldabra giant tortoise. It also provides insights into the population structure of the wild population and the origins of captive individuals. The high-quality genome assembly will contribute to conservation efforts and the understanding of the genetic basis of the species' longevity.
Article
Biodiversity Conservation
Julia H. Heinen, E. Emiel van Loon, Dennis M. Hansen, W. Daniel Kissling
Review
Biology
Mauro Galetti, Marcos Moleon, Pedro Jordano, Mathias M. Pires, Paulo R. Guimaraes, Thomas Pape, Elizabeth Nichols, Dennis Hansen, Jens M. Olesen, Michael Munk, Jacqueline S. de Mattos, Andreas H. Schweiger, Norman Owen-Smith, Christopher N. Johnson, Robert J. Marquis, Jens-Christian Svenning
BIOLOGICAL REVIEWS
(2018)
Article
Biodiversity Conservation
Paul J. Haverkamp, John Shekeine, Rogier de Jong, Michael Schaepman, Lindsay A. Turnbull, Richard Baxter, Dennis Hansen, Nancy Bunbury, Frauke Fleischer-Dogley, Gabriela Schaepman-Strub
ECOLOGICAL INDICATORS
(2017)