Alexandra K. Schnell

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Animals attempt to maximize their reproductive fitness by employing discrimination tactics that increase their fertilization success. Semelparous species are faced with high energy and time constraints. These constraints are predicted to affect the extent of discrimination tactics that may be employed. The semelparous giant Australian cuttlefish, Sepia(More)
During homeostasis, hematopoietic stem cells (HSCs) are mostly kept in quiescence with only minor contribution to steady-state hematopoiesis. However, in stress situations such as infection, chemotherapy, or transplantation, HSCs are forced to proliferate and rapidly regenerate compromised hematopoietic cells. Little is known about the processes regulating(More)
Vertebrates with laterally placed eyes typically exhibit preferential eye use for ecological activities such as scanning for predators or prey. Processing visual information predominately through the left or right visual field has been associated with specialized function of the left and right brain. Lateralized vertebrates often share a general pattern of(More)
Many animals produce multiple displays during agonistic interactions, but the roles of these displays often remain ambiguous. The hierarchical signaling hypothesis has been proposed to explain their occurrence and posits that different displays convey different levels of aggressive intent, allowing signalers to communicate graded series of threats. This(More)
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