Results 31 to 40 of about 7,930 (256)

Scaling of Extinction Time With Habitat Size in Experimental Populations. [PDF]

open access: yesEcol Lett
Theory predicts that extinction time scales with carrying capacity as either an exponential or power law. Extinction time in 35 laboratory populations was more consistent with a power law than exponential scaling. These have important implications to avoid underestimating extinction risk in natural and managed populations.
Drake JM, Marty É, Sau A.
europepmc   +2 more sources

A new molecular diagnostic tool for surveying and monitoring Triops cancriformis populations [PDF]

open access: yes, 2017
© 2017 Sellers et al. The tadpole shrimp, Triops cancriformis, is a freshwater crustacean listed as endangered in the UK and Europe living in ephemeral pools.
Griffin, Larry R.   +3 more
core   +3 more sources

Branquiópodos de las masas de agua lacustre del Parque Nacional Cajas (Andes Australes, Ecuador) inventario y notas autoecológicas

open access: yesMaskana, 2017
Un muestreo extensivo de 202 masas de agua leníticas (lagos, lagunas y charcas), ubicadas entre 3,150 y 4,460 m s.n.m. en el Parque Nacional Cajas (Andes Australes de Ecuador), ha puesto de manifiesto el elevado interés que tienen estos enclaves de alta ...
Miguel Alonso   +3 more
doaj   +1 more source

Thermal limits and preferences of large branchiopods (Branchiopoda: Anostraca and Spinicaudata) from temporary wetland arid zone systems.

open access: yesJournal of Thermal Biology, 2021
Large branchiopods are specialist crustaceans adapted for life in temporary, thermally dynamic wetland ecosystems. Certain large branchiopod species are, however, restricted to specific temporary wetland types, exemplified by their physico-chemical and ...
Murphy Tladi   +4 more
semanticscholar   +1 more source

Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata)

open access: yesZoologica Scripta, 2021
Laevicaudatan branchiopods, also called ‘smooth clam shrimps’ or ’pea shrimps’, are rare crustaceans found exclusively in temporary, small freshwater bodies, which stay dry most of the year.
Zandra M. S. Sigvardt   +6 more
semanticscholar   +1 more source

High lability of sexual system over 250 million years of evolution in morphologically conservative tadpole shrimps [PDF]

open access: yes, 2013
Background Sexual system is a key factor affecting the genetic diversity, population structure, genome structure and the evolutionary potential of species.
Gomez, Africa   +10 more
core   +3 more sources

Ecotoxicity Thresholds for Ametryn, Diuron, Hexazinone and Simazine in Fresh and Marine Waters [PDF]

open access: yes, 2018
Triazine and urea herbicides are two groups of photosystem II inhibiting herbicides frequently detected in surface, ground and marine waters. Yet, there are few water quality guidelines for herbicides. Ecotoxicity thresholds (ETs) for ametryn, hexazinone
A Claver   +27 more
core   +1 more source

Record of Pleopis schmackeri (Poppe) Branchiopoda in Rio das Ostras, Rio de Janeiro, Brazil

open access: yesBiotemas, 2012
The paper describes the first occurrence of Pleopis schmackeri (Poppe, 1889) (Branchiopoda, Onychopoda) in Rio das Ostras, Rio de Janeiro, Brazil is described.
Wanda Maria Monteiro-Ribas   +2 more
doaj   +1 more source

First evidence of underwater sounds emitted by the living fossils Lepidurus lubbocki and Triops cancriformis (Branchiopoda: Notostraca)

open access: yes, 2021
Sound is the most effective means of communication in marine and freshwater ecosystems. However, no data about acoustic emissions from non-malacostracan crustaceans are currently available, so their ability to produce sounds is unknown.
G. Buscaino   +4 more
semanticscholar   +1 more source

Raman spectroscopic analysis of the composition of the clam-shrimp carapace (Branchiopoda: Laevicaudata, Spinicaudata, Cyclestherida): a dual calcium phosphate-calcium carbonate composition

open access: yesJournal of Crustacean Biology, 2020
Clam shrimps constitute a paraphyletic group of bivalved branchiopod crustaceans that includes orders Laevicaudata, Spinicaudata, and Cyclestherida. The unique mineral content of the carapace, formed by molt retention in Spinicaudata and Cyclestherida,
T. Hegna, Andrew D. Czaja, D. C. Rogers
semanticscholar   +1 more source

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