Results 11 to 20 of about 3,383 (189)

New records of intersexuality in porcelain crabs (Crustacea: Decapoda: Anomura: Porcellanidae) [PDF]

open access: yesNauplius, 2018
The occurrence of intersex specimens of Lissoporcellana quadrilobata (Miers, 1884), Pisidia bluteli (Risso, 1816) and Pisidia longimana (Risso, 1816) is recorded for the first time and their secondary sexual characters analyzed.
Luciane Augusto de Azevedo Ferreira
doaj   +2 more sources

Integrative Phylogenetic and Morphological Analyses Reveal Two New Species of Porcellanid Crabs and Resurrect <i>Porcellanella picta</i> Stimpson, 1858 (Decapoda: Porcellanidae). [PDF]

open access: yesEcol Evol
This study uses integrative phylogenetic and morphological analyses to clarify the taxonomy of Porcellanella crabs, revealing four distinct species. The authors resurrect Porcellanella picta as a valid species and describe two new species from Australia (P. brevidentata n. sp. and P. longiloba n. sp.).
Loke HX   +7 more
europepmc   +2 more sources

Molecular Evaluation of the Mating Dynamics of Snow Crab (Chionoecetes opilio) in the Eastern Bering Sea. [PDF]

open access: yesEcol Evol
Most snow crab females in the eastern Bering Sea had stored sperm from one or two mates. While single paternity was common, some females had clutches sired by two males. Female snow crab primarily mated with male snow crab, with few instances of interspecies mating.
Slater LM   +5 more
europepmc   +2 more sources

Genome assemblies of two species of porcelain crab, Petrolisthes cinctipes and Petrolisthes manimaculis (Anomura: Porcellanidae). [PDF]

open access: yesG3 (Bethesda), 2023
Abstract Crabs are a large subtaxon of the Arthropoda, the most diverse and species-rich metazoan group. Several outstanding questions remain regarding crab diversification, including about the genomic capacitors of physiological and morphological adaptation, that cannot be answered with available genomic resources.
Angst P, Dexter E, Stillman JH.
europepmc   +3 more sources

Historical Demography and Species Distribution Models Shed Light on Speciation in Primates of Northeast India. [PDF]

open access: yesEcol Evol
Northeast India's diverse geography has created numerous niches, promoting species evolution, with past climate change playing a significant role in primate speciation. Using climate modeling and genomic data, we studied the demographic history of nine primate species, revealing that climate fluctuations during the Pliocene and Pleistocene influenced ...
Trivedi M   +7 more
europepmc   +2 more sources

Not just range limits: Warming rate and thermal sensitivity shape climate change vulnerability in a species range center

open access: yesEcology, Volume 104, Issue 12, December 2023., 2023
Abstract Climate change manifests unevenly across space and time and produces complex patterns of stress for ecological systems. Species can also show substantial among‐population variability in response to environmental change across their geographic range due to evolutionary processes.
Fiona Beaty   +3 more
wiley   +1 more source

Catching crabs: a case study in local-scale English conservation [PDF]

open access: yes, 2014
Wells-next-the-Sea and Cromer in Norfolk (England) both rely upon their local crab populations, since crabbing (gillying) is a major part of their tourist industry.
Aldridge, David   +2 more
core   +2 more sources

The role of refuges in biological invasions: A systematic review

open access: yesGlobal Ecology and Biogeography, Volume 32, Issue 8, Page 1244-1271, August 2023., 2023
Abstract Aim Ecological refuges buffer organisms against stressors and mediate a range of species interactions. However, their role in the context of biological invasions has yet to be synthesized, despite the increasing prevalence and impact of non‐native species.
James S. Boon   +3 more
wiley   +1 more source

Flight or fight: flexible antipredatory strategies in porcelain crabs [PDF]

open access: yesBehavioral Ecology, 2005
Autotomy, the voluntary shedding of limbs or other body parts in the face of predation, is a highly effective escape mechanism that has evolved independently in a variety of taxa. Crabs are unusual in that the limb that is typically sacrificed during autotomy, the anterior clawed cheliped, can also be used to ward off attack. During an encounter with a
Kerstin Wasson, Bruce E. Lyon
openaire   +2 more sources

Moderate recreational oyster harvest has variable impacts on biophysical properties of reefs and reef‐associated fauna

open access: yesEcosphere, Volume 14, Issue 6, June 2023., 2023
Abstract Despite the popularity of recreational fishing, our understanding of the impacts of this type of harvest within marine ecosystems generally lags behind the well‐documented effects of commercial fisheries. Intertidal oysters serve as ecosystem engineers within otherwise soft‐bottom estuaries but may be disproportionately susceptible to harvest ...
Robert P. Dunn   +2 more
wiley   +1 more source

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