Results 121 to 130 of about 43,558 (273)

General-purpose and special-purpose visual systems [PDF]

, 2006
The information that eyes supply supports a wide variety of functions, from the guidance systems that enable an animal to navigate successfully around the environment, to the detection and identification of predators, prey, and conspecifics.
Land, Michael F, Nilsson, Dan-E
core   +2 more sources

Molecular Phylogeny, Species Delimitation, and Biogeography of the Varunid Crab Genus Metaplax (Crustacea, Varunidae)

Zoologica Scripta, EarlyView.
ABSTRACT The Indo‐West Pacific genus Metaplax comprises 11 recognised species inhabiting intertidal mudflats, some adjacent to mangroves. To resolve long‐standing uncertainties, we analysed mitochondrial (COI, 16S) and nuclear (28S) markers. Phylogenetic analyses recovered Metaplax as monophyletic and resolved four well‐supported clades—the M ...
Jhih‐Wei Hsu, Hsi‐Te Shih, Mani Prema, Jigneshkumar Trivedi, Ngan Kee Ng, Min‐Yun Liu, Samuthirapandian Ravichandran, Peter K. L. Ng   +7 more
wiley   +1 more source

High-Resolution Integrative Delimitation of Intertidal Limpets via Multi-Locus Barcodes and SEM Morphology

Diversity
Limpets are marine gastropod molluscs well adapted to intertidal rocky environments, yet their taxonomic resolution remains challenging due to extensive morphological convergence and the presence of cryptic species.
Jialong Liang, Kexin Zhao, Xiaonan Ma, Jiayi Zang, Wenxiao Guo, Ran Zhao   +5 more
doaj   +1 more source

Ecological study of gastropod on seagrass ecosystem in small island sea North Maluku Indonesia

Depik Jurnal
The seagrass ecosystem is a habitat and food source for fish and other aquatic biota. One of the biota commonly found in seagrass beds is gastropods . This aim research was carried of identifying the composition of gastropod species, assessing ecological
Sunarti Sunarti, Yuyun Abubakar, Salim Abubakar, Riyadi Subur, Rina Rina, Nebuchadnezzar Akbar, Raut Nugrahening Widhi, Mesrawaty Sabar, Raut Wahyuning Paluphi, Disnawati Disnawati   +9 more
doaj   +1 more source

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups

Rapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Stuart Umbo, Maria Box, Aviva Intveld, Jack Longman, Sevasti Modestou, Stacy A. Carolin, Daniel H. James, Alfredo Martínez‐García, Carlos Peraza Lope, Mark Brenner, David Hodell, Sebastian F. M. Breitenbach   +11 more
wiley   +1 more source

Distribución, abundancia y morfometría de Strombus costatus, Turbinella angulata, Busycon contrarium y Pleuroploca gigantea (Mesogasteropoda: Strombidae, Turbinellidae, Neptuneidae y Fasciolaridae) en Yucatán, México

Revista de Biología Tropical, 2000
Se analizó la distribución, abundancia y morfometría de Strombus costatus, Turbinella angulata, Busycon contrarium y Pleuroploca gigantea en Dzilam de Bravo, Yucatán, México. La toma de datos se realizó con buceo libre mediante el método de cuadrantes de
Manuel Pérez Pérez, Dalila Aldana Aranda   +1 more
doaj  

New partial skeleton of Homo habilis from the upper Burgi Member, Koobi Fora Formation, Ileret, Kenya

The Anatomical Record, Volume 309, Issue 3, Page 485-545, March 2026.
Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine, Deming Yang, Ashley S. Hammond, William L. Jungers, Michael R. Lague, Carrie S. Mongle, Osbjorn M. Pearson, Meave G. Leakey, Louise N. Leakey   +8 more
wiley   +1 more source

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Brazilian Journal of Biology
We examined aspects of the population ecology of the gastropod Stramonita haemastoma at Ilhéus, Bahia, Brazil. We collected monthly from October 2007 through September 2008 on a sandstone bank 1.5 km long, on which two points and two sampling levels were
JJB. Santos, G. Boehs
doaj   +1 more source

Widespread decline in the abundance of sea cucumber assemblages in atolls of the protected Rowley Shoals, northwestern Australia

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract The Rowley Shoals, off northwestern Australia, are renowned as a biodiversity hotspot. This remote system comprises three atolls, Clerke, Imperieuse and Mermaid, which in recent years have been increasingly targeted by illegal fishing, a pressure rising across the Indo‐Pacific.
Inês Leal, Claire L. Ross, Simone Strydom, Richard D. Evans, Thomas H. Holmes, Graham J. Edgar, John K. Keesing   +6 more
wiley   +1 more source

Encapsulated development, spawning and early veliger of the ranellid snail Fusitriton magellanicus (Roding, 1798) in the cold waters of the Magellan Strait, Chile Desarrollo intracapsular, oviposturas y velígeras tempranas del caracol ranélido Fusitriton magellanicus (Roding, 1798) en aguas frías del estrecho de Magallanes, Chile

Latin American Journal of Aquatic Research, 2012
Field and laboratory study of egg masses, encapsulated development stages and early-hatched veliger larvae of the sub-Antarctic observations Fusitriton magellanicus (Roding, 1798) are described from samples collected in the Magellan Strait (Santa Ana ...
Juan I Cañete, Carlos S Gallardo, Tamara Céspedes, César A Cárdenas, Mario Santana   +4 more
doaj