Results 51 to 60 of about 487 (171)

Habitat complexity promotes species richness and community stability: a case study in a marine biogenic habitat

Oikos, Volume 2025, Issue 7, July 2025.
Habitat complexity (HC) promotes species richness and abundance. Aquatic environments are faced with intense pressures that threaten the 3D structure of the seafloor, with cascading effects on ecosystem functioning and biodiversity. Maerl or rhodolith beds are marine biogenic habitats created by few species of free‐living non‐geniculate coralline algae
Victor Leite Jardim, Aurélien Boyé, Vincent Le Garrec, Marion Maguer, Adeline Tauran, Olivier Gauthier, Jacques Grall   +6 more
wiley   +1 more source

FIGURE 35. Petrolisthes agassizii Faxon, 1893 in An annotated and illustrated checklist of the porcelain crabs of Panama (Decapoda: Anomura)

, 2021
FIGURE 35. Petrolisthes agassizii Faxon, 1893: A, B, ovigerous female (cl cw indet.) from Taboga Island, Panama (not deposited), dorsal (A) and ventral (B) views; C, D, ovigerous female (cl cw indet.) from the same locality (not deposited), dorsal (C ...
Ferreira, Luciane Augusto De Azevedo, Anker, Arthur   +1 more
core   +1 more source

Negative ontogenetic allometry of cardinal spines in the early Cambrian arthropod Isoxys volucris indicates their defensive function

Palaeontology, Volume 68, Issue 4, July/August 2025.
Abstract The characteristic cardinal spines of Isoxys, a cosmopolitan bivalved arthropod, have been focal to understanding its role in Cambrian ecosystems. It has been proposed that the spines had either a hydrodynamic function, to aid buoyancy, or a defensive function, to protect against predators.
Morten Lunde Nielsen, Mirinae Lee, Philip R. Wilby, Tae‐Yoon S. Park, Arne T. Nielsen, Jakob Vinther   +5 more
wiley   +1 more source

FIGURE 64. Petrolisthes nobilii Haig, 1960 in An annotated and illustrated checklist of the porcelain crabs of Panama (Decapoda: Anomura)

, 2021
FIGURE 64. Petrolisthes nobilii Haig, 1960: A, ovigerous female (cl 6.3 mm cw 6.4 mm) from Azuero Peninunsula, Panama (FLMNH UF 57715), dorsal view [photograph by AA]; B, female (cl cw indet.) from Chame Bay, Panama (ULLZ/USNM), dorsal view [photograph ...
Ferreira, Luciane Augusto De Azevedo, Anker, Arthur   +1 more
core   +1 more source

Defensive Behaviour in Intertidal Crabs

Ethology, Volume 131, Issue 4, April 2025.
Mangrove swimming crab showing defensive behaviour by raising its chelae; ruler and grey card are also shown. ABSTRACT Despite a long roster of prey defences against predators now documented by biologists, any given species utilises only some of them, and we have few a priori predictions as to if, when or where they will be employed.
Manisha Koneru, Tim Caro
wiley   +1 more source

FIGURE 68. Petrolisthes ortmanni Nobili, 1901 in An annotated and illustrated checklist of the porcelain crabs of Panama (Decapoda: Anomura)

, 2021
FIGURE 68. Petrolisthes ortmanni Nobili, 1901: A, B, ovigerous female (cl 6.0 mm, cw 6.4 mm) from Las Perlas Islands, Panama (MZUSP 33808), dorsal (A) and ventral (B) views [photographs by AA]; C, female (cl 4.2 mm, cw 4.1 mm) from the same locality ...
Ferreira, Luciane Augusto De Azevedo, Anker, Arthur   +1 more
core   +1 more source

Trophic pathways supporting a marine-estuarine-dependent species of fishery importance in the eastern Pacific

Fisheries and Aquatic Sciences
Ecological modeling using stable isotopes combined with network analysis provides a holistic view of how different trophic pathways support the productivity of fishery species.
Diana Medina-Contreras, Camila Guevara-Torres, Johnatan Estrada-Padilla, Manuel Zetina-Rejón, Alberto Sánchez-González, Jaime Cantera-Kintz   +5 more
doaj   +1 more source

Quantification of endogenous marker acid‐insoluble ash in commercial aquaculture ingredients and feeds

Journal of the World Aquaculture Society, Volume 56, Issue 2, April 2025.
Abstract This study investigates the efficacy of acid‐insoluble ash (AIA) as an endogenous digestibility marker in commercial aquaculture ingredients and feeds. AIA is a naturally occurring, low‐cost alternative to external markers such as chromic oxide and yttrium oxide. External markers are often impractical in the production of small batches of feed
Julio Camperio, Jorge A. Suarez, Brett Glencross, Daniel D. Benetti   +3 more
wiley   +1 more source

The effect of sex, size and habitat on the incidence of puncture wounds in the claws of the porcelain crab Petrolisthes cinctipes (Anomura: Porcellanidae)

, 2007
Many porcelain crabs have an unusual claw (cheliped) form that is broad, flat and thin. This seemingly flimsy form suggests claws may be used more for display than for feeding or aggressive interactions.
Palmer, A.R., Rypien, K.L.
core   +1 more source

Polyploidy confers better cold tolerance in Daphnia

Oikos, Volume 2025, Issue 3, March 2025.
Despite decades of studies on the differential distribution of polyploid organisms, the causes of this pattern have yet to be elucidated. This study aimed to explore some of the possible physiological mechanisms explaining the differential northern distribution of polyploid clones of Daphnia pulex compared to the one of the diploid parental species ...
Ivan Pecl, Pierre U. Blier, France Dufresne   +2 more
wiley   +1 more source