Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Dennis M Hansen"'
Publikováno v:
PLoS ONE, Vol 3, Iss 5, p e2111 (2008)
The Janzen-Connell model states that plant-specific natural enemies may have a disproportionately large negative effect on progeny close to maternal trees. The majority of experimental and theoretical studies addressing the Janzen-Connell model have
Externí odkaz:
https://doaj.org/article/aa2ec7d5744f42bebbb1c826053eb636
Publikováno v:
Global Ecology and Conservation, Vol 30, Iss , Pp e01761- (2021)
The island of Mauritius in the Mascarenes has already suffered high levels of extinction, and habitat destruction and invasive alien species have pushed many of the remaining endemic species to the brink of extinction. Round Island, a small island no
Externí odkaz:
https://doaj.org/article/e14c3310a5294c4dae26290a57073bf4
Autor:
Wilfredo Falcón, Rich P. Baxter, Samuel Furrer, Martin Bauert, Jean‐Michel Hatt, Gabriela Schaepman‐Strub, Arpat Ozgul, Nancy Bunbury, Marcus Clauss, Dennis M. Hansen
Publikováno v:
Ecology and Evolution, Vol 8, Iss 4, Pp 2108-2121 (2018)
Abstract We studied the temperature relations of wild and zoo Aldabra giant tortoises (Aldabrachelys gigantea) focusing on (1) the relationship between environmental temperature and tortoise activity patterns (n = 8 wild individuals) and (2) on torto
Externí odkaz:
https://doaj.org/article/861f15be77b140be851d1c39766e8224
Autor:
Marcus Clauss, Jean-Michel Hatt, Richard Baxter, Gabriela F. Mastromonaco, Maya S. Kummrow, Nancy Bunbury, Dennis M. Hansen
Publikováno v:
Herpetological Journal. :197-201
Aldabra giant tortoises (Aldabrachelys gigantea) are currently listed as Vulnerable on the IUCN Red List of Threatened Species. However, negative impacts of sea-level rise are predicted to result in an overall population decline of 40-65 % over the n
Autor:
Richard Baxter, Arpat Ozgul, Dennis M. Hansen, Erik Postma, Lindsay A. Turnbull, Nancy Bunbury, F. G. Çilingir, Christine Grossen
Aldabrachelys gigantea (Aldabra giant tortoise) is one of only two giant tortoise species left in the world and survives as a single wild population of over 100,000 individuals on Aldabra Atoll, Seychelles. Despite this large current population size,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a9f87963bce96f4d7f948011f79f928
https://doi.org/10.1101/2021.11.08.467072
https://doi.org/10.1101/2021.11.08.467072
Publikováno v:
Biological Reviews. 95:142-166
In recent years, it has become clear that frugivory and seed dispersal (FSD) by turtles and tortoises is much more common than previously thought. Yet, a review and synthesis is lacking. We here review published and unpublished records of chelonian F
Autor:
R Walton, Frauke Fleischer-Dogley, Dennis M. Hansen, Gabriela Schaepman-Strub, Sarah Greenwood, Richard Baxter, Nancy Bunbury
Publikováno v:
Biodiversity and Conservation. 28:3183-3198
With habitat loss and fragmentation among the greatest threats to biodiversity, a better understanding of the habitat use of keystone species is critical in any conservation management strategy. Aldabra Atoll, in the Seychelles archipelago, has the l
Publikováno v:
Herpetologica. 77
Seed dispersal through endozoochory is a critical ecosystem function worldwide. Seed gut retention time (GRT; the duration that seeds are retained in the digestive tract) is an important part of the qualitative component of the seed dispersal effecti
Publikováno v:
Global Ecology and Conservation, Vol 30, Iss, Pp e01761-(2021)
The island of Mauritius in the Mascarenes has already suffered high levels of extinction, and habitat destruction and invasive alien species have pushed many of the remaining endemic species to the brink of extinction. Round Island, a small island no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ee4810c48f8001e252b9e2d43fe4439
Autor:
O. A Aguilera-Socorro, Dennis M. Hansen, Jorge D. Carrillo-Briceño, Rodolfo Sánchez, Edwin A. Cadena, M. Pardo, Torsten M. Scheyer, A. Vanegas, Marcelo R. Sánchez-Villagra
Publikováno v:
Science Advances
Repositorio EdocUR-U. Rosario
Universidad del Rosario
instacron:Universidad del Rosario
Repositorio EdocUR-U. Rosario
Universidad del Rosario
instacron:Universidad del Rosario
The largest extinct turtle from South America had males with horned shells.
Despite being among the largest turtles that ever lived, the biology and systematics of Stupendemys geographicus remain largely unknown because of scant, fragmentary fin
Despite being among the largest turtles that ever lived, the biology and systematics of Stupendemys geographicus remain largely unknown because of scant, fragmentary fin