E. Walsh

Publications72
h-index20
Citations1,127
Highly Influential Citations72
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Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy
TLDR
A dataset of previously available and newly generated sequences of COI and ITS1 for 1273 isolates of the Brachionus plicatilis complex is collated and used to explore phylogenetic signal in morphometric and ecological traits, and to understand correlation among the traits using phylogenetic comparative models.
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Rotifers Ingest Oocysts of Cryptosporidium parvum
TLDR
Six genera of rotifers including Philodina, Monostyla, Epiphanes, Euchlanis, Brachionus, and Asplanchna were exposed to oocysts of Cryptosporidium parvum cleaned of fecal debris, andRotifers of all six genera were observed ingesting oocytes.
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Brachionus calyciflorus is a species complex: Mating behavior and genetic differentiation among four geographically isolated strains
TLDR
While the Florida, Texas and Australia strains were reproductively isolated from one another, most combinations of cross-strain mating tests showed intense and prolonged male circling behavior following male-female encounters, which suggests that precopulatory male circling and copulation are two separate behaviors that may be controlled by different female chemicals and male coronal receptors.
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Brachionus calyciflorus is a Species Complex: Mating Behavior and Genetic Differentiation Among Four Geographically Isolated Strains
TLDR
While the Florida, Texas and Australia strains were reproductively isolated from one another, most combinations of cross-strain mating tests showed intense and prolonged male circling behavior following male–female encounters, which suggests that precopulatory male circling and copulation are two separate behaviors that may be controlled by different female chemicals and male coronal receptors.
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Life on the Edge: Rotifers From Springs and Ephemeral Waters in the Chihuahuan Desert, Big Bend National Park (Texas, USA)
Here we describe an on-going study of the rotifers inhabiting a sampling of springs (seeps), streams, ponds, tanks (diked ephemeral streams), and huecos and tinajas (small and large rock pools) of…
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Sexual reproduction and diapause of Hexarthra sp. (Rotifera) in short‐lived ponds in the Chihuahuan Desert
TLDR
It is shown that populations of an undescribed Hexarthra species inhabiting small temporary ponds in the Chihuahuan Desert deviate from this life cycle pattern, which has the potential for rapid population development and production of new diapausing eggs in short-lived habitats.
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Interaction effects of multi-metal solutions (As, Cr, Cu, Ni, Pb and Zn) on life history traits in the rotifer Plationus patulus
TLDR
Responses of this basal consumer to metal mixtures will provide insights into how aquatic food webs and their constituent organisms can be altered by anthropogenic inputs like heavy metal contamination.
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Cryptic speciation in the cosmopolitan Epiphanes senta complex (Monogononta, Rotifera) with the description of new species
TLDR
Morphological, reproductive, and genetic differentiation among the studied populations demonstrates Epiphanes senta is actually a species complex, and three new species within the E. senta species complex are described.
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How well do single samples reflect rotifer species diversity? A test based on interannual variation of rotifer communities in Big Bend National Park (Texas, USA)
TLDR
Examination of interannual variation of rotifer species richness and monogonont community structure from 10 aquatic systems comprising four habitat types in Big Bend National Park indicates that rotifer community composition fluctuates greatly over time, and thatrotifer community structure may be more labile than is generally believed.
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THE COASTAL-ESTUARINE COPEPOD, EURYTEMORA AFFINIS (POPPE) (CALANOIDA, TEMORIDAE), FROM ARID INLAND AREAS OF MEXICO: AN EXPECTED OCCURRENCE?
TLDR
This work reports the occurrence of this coastal copepod from arid and semi-arid continental systems of northern Mexico and the southwestern United States, which is the first record of E. affinis from Mexico and also the southernmost one in the Americas as a freshwater form.
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