Results 1 to 10 of about 6,562 (149)

Piloting an Unmanned Aerial Vehicle to Explore the Floristic Variations of Inaccessible Cliffs along Island Coasts

Drones, 2023
Coastal cliffs are important in plant ecology as a unique frontier between terrestrial and marine ecosystems. This study piloted close-range photogrammetry with an unmanned aerial vehicle (UAV) to clarify floristic patterns using 26 inaccessible coastal ...
Seongjun Kim, Chang Woo Lee, Hwan-Joon Park, Byoung-Doo Lee, Nam Young Kim, Jung Eun Hwang, Hyeong Bin Park, Jiae An, JuHyoung Baek   +8 more
doaj   +4 more sources

Vegetation and checklist of Inaccessible Island, central South Atlantic Ocean, with notes on Nightingale Island

Bothalia: African Biodiversity & Conservation, 1992
The physiography and climate of Inaccessible and Nightingale Islands are briefly discussed. The vegetation and the major plant associations are described. Notes are given on the ecology and distribution of each taxon. Taxa newly recorded for Inaccessible
J. P. Roux, P. G. Ryan, S. J. Milton, C. L. Moloney   +3 more
doaj   +2 more sources

Digitisation of historical specimens from the Hog Island Audubon Camp Natural History Collection, Maine [PDF]

Biodiversity Data Journal
Natural history collections serve as invaluable records of biological complexity across time and space. However, only a small fraction of these collections has been digitised globally, leaving the majority of specimen data inaccessible for research and ...
Stephen Mason, Jr., Scott Weidensaul, Alice Dougherty, Aidan Doyle, Mary Rady, Liam Semmler, Mary Steinbicker, Maria Mick, Eva Lark, Eric Snyder, Vaughn Shirey   +10 more
doaj   +4 more sources

Status and trends of giant clam populations demonstrate the effectiveness of village-based protection in American Sāmoa [PDF]

PeerJ
Giant clams (subfamily Tridacninae) serve diverse ecological functions in coral reef ecosystems but have experienced severe populatiaon declines across much of their native ranges. Continued overharvesting, habitat degradation, and climate change impacts
Paolo Marra-Biggs, Eric K. Brown, Domingo Galgo Ochavillo, Alison L. Green, Alice Lawrence, Carlos Tramonte, Valentine Vaeoso, Ian Moffitt, Kersten Schnurle, Nury Molina, Robert J. Toonen   +10 more
doaj   +3 more sources

Uncovering genetic population structure in the Endangered northern rockhopper penguin (Eudyptes moseleyi) across islands in the Southern Atlantic and Indian oceans [PDF]

BMC Genomics
Background The northern rockhopper penguin (Eudyptes moseleyi) is a threatened species, listed as Endangered globally by the IUCN owing to rapid population decreases in the past, combined with a limited distributional range. Their breeding is confined to
Heather Ritchie-Parker, Alex Ball, Trevor Glass, Jean-Marc Costanzi, Thierry Boulinier, Amandine Gamble, Muhammad Ghazali, Karen Keegan, Christophe Barbraud, Charly Bost, Caroline Bost, Jaimie Cleeland, Augustin Clessin, Maelle Connan, Karine Delord, Ben Dilley, Tristan Glass, Christopher W. Jones, Peta Moore, Kate Lawrence, Fabrice LeBouard, Alexis Osborne, Richard A. Phillips, Norman Ratcliffe, Julian Repetto, Michelle Risi, Peter G. Ryan, Brandon Spolander, Shannon Swain, Wayne Swain, Jérémy Tornos, Alex Whittle, Helen Senn, Antje Steinfurth   +33 more
doaj   +2 more sources

The Denstone Expedition to Inaccessible Island [PDF]

Geographical Journal, 1985
M. K. Swales, C. P. Siddall, N. J. Mateer, H. N. Hall, R. C. Preece, M. W. Fraser   +5 more
exaly   +2 more sources

Local development and cultural landscapes: getting to know the inaccessible villages of the greek war of independence [PDF]

E3S Web of Conferences, 2021
The cultural landscapes have a dual, material and intangible nature being the result of interactions between people and nature through time. Considering that its understanding requires integrated analysis techniques we experimented a mapping method in ...
Tsakiri Efrossyni, Markou Maria, Moraitis Konstantinos, Haniotou Helene   +3 more
doaj   +1 more source

Inaccessible Island Finch (Nesospiza acunhae) [PDF]

The Condor, 2020
Abstract Juvenile Nesospiza buntings measured 7–11 weeks after hatching were compared with the sizes of their parents to estimate the heritability (h2) of six external morphological characters. There was no evidence of size selection before juveniles were seven weeks old, but some additional growth in bill size probably occurred after
Ryan, Peter G., Moloney, Coleen L., Hudon, Jocelyn   +2 more
openaire   +2 more sources

Collecting critically endangered cliff plants using a drone-based sampling manipulator

Scientific Reports, 2022
Kauaʻi, an island within the Hawaiʻi archipelago, is home of a unique flora that contains 250 single-island endemic plant species. Threats have led to a significant population decrease where 97% of these plant species are now listed as endangered ...
Hughes La Vigne, Guillaume Charron, Julien Rachiele-Tremblay, David Rancourt, Ben Nyberg, Alexis Lussier Desbiens   +5 more
doaj   +1 more source

Accurate abundance estimation of cliff-breeding Bounty Island shags using drone-based 2D and 3D photogrammetry

Avian Conservation and Ecology, 2023
Effective seabird management strategies rely on accurate population estimates, with previous methods typically employing ground counts of a target species.
Thomas Mattern, Klemens Pütz, Hannah L. Mattern, David M Houston, Robin Long, Bianca C Keys, Jeff W White, Ursula Ellenberg, Pablo Garcia-Borboroglu   +8 more
doaj   +1 more source