Altered Trophoblastic Differentiation and Increased Trophoblastic Invasiveness during Delayed Development in the Short-tailed Fruit Bat, Carollia perspicillata

Placenta ◽  
2001 ◽  
Vol 22 (1) ◽  
pp. 124-144 ◽  
Author(s):  
N.K. Badwaik ◽  
J.J. Rasweiler
Keyword(s):  
Carollia Perspicillata ◽  
Fruit Bat ◽  
Trophoblastic Differentiation ◽  
Delayed Development

scholarly journals Delayed development in the short-tailed fruit bat, Carollia perspicillata

Reproduction ◽  
1997 ◽  
Vol 109 (1) ◽  
pp. 7-20 ◽  
Author(s):  
J. J. Rasweiler ◽  
N. K. Badwaik
Keyword(s):  
Carollia Perspicillata ◽  
Fruit Bat ◽  
Delayed Development

scholarly journals Selectivity in the transport of spermatozoa to oviductal reservoirs in the menstruating fruit bat, Carollia perspicillata

Reproduction ◽  
2010 ◽  
Vol 140 (5) ◽  
pp. 743-757 ◽  
Author(s):  
John J Rasweiler ◽  
Nilima K Badwaik ◽  
Kiranmayi V Mechineni
Keyword(s):  
Epithelial Cells ◽  
Fine Particulate Matter ◽  
Uterine Cavity ◽  
Elastic Fibers ◽  
Carollia Perspicillata ◽  
Fruit Bat ◽  
Fine Particulate ◽  
Uterine Mucosa ◽  
Luminal Epithelial Cells ◽  
Gain Access

To better document the timing of ovulation and fertilization, female reproductive tracts were collected every 12 h from captive-bred fruit bats (Carollia perspicillata) on days 1–3 postcoitum and examined histologically. This also permitted observations on sperm transport, storage, and disposition. As the animals had previously been sexually segregated, most had been cycling and possessed menstrual uteri at the time of collection. Menstruation is periovulatory in this species. A widespread, headfirst orientation of spermatozoa to the uterine mucosa was observed in specimens apparently collected soon after insemination. Thereafter, however, this relationship was limited in most cases to the area around the entrance of each uterotubal junction (UTJ). A small number of spermatozoa also colonized the UTJs, which functioned as temporary sperm reservoirs on days 1–2. AlthoughC. perspicillatais monovular, no consistent differences were observed between the two oviducts in the pattern of sperm storage and release. Very few sperm were ever observed in the isthmus or ampulla (the site of fertilization). Menstrual debris (including fine particulate matter) and leukocytes present in the uterine cavity in most tracts did not gain access to the UTJ with the spermatozoa. Smooth muscle and abundant elastic fibers in the wall of the intramural UTJ, as well as receptors on its luminal epithelial cells, may play roles in the selective transport of spermatozoa to the fertilization site. While some spermatozoa are phagocytosed in the uterine lumen or by epithelial cells in the UTJ, the fate of most is probably expulsion into the vagina.

Male courtship displays and vocal communication in the polygynous bat Carollia perspicillata

Behaviour ◽  
2014 ◽  
Vol 151 (6) ◽  
pp. 781-798 ◽  
Author(s):  
Mirjam Knörnschild ◽  
Marion Feifel ◽  
Elisabeth K.V. Kalko
Keyword(s):  
Vocal Communication ◽  
Mate Recognition ◽  
Courtship Behaviour ◽  
Male Courtship ◽  
Courtship Display ◽  
Carollia Perspicillata ◽  
Fruit Bat ◽  
Distress Calls ◽  
Individual Signature ◽  
Courtship Displays

Male courtship behaviour towards choosy females often comprises elaborate displays that address multiple sensory channels. In bats, detailed quantitative descriptions of multimodal courtship displays are still fairly scarce, despite the taxon’s speciose nature. We studied male courtship behaviour in a polygynous Neotropical bat, Seba’s short-tailed fruit bat Carollia perspicillata, by monitoring harem males in a captive colony. Courting male C. perspicillata performed stereotypic tactile, visual and acoustic displays. A courtship sequence, directed at one female at a time, lasted up to 120 s. During courtship, males approached females by brachiating or flying, hovered in front of them, pursued them on the wing, sniffed them and repeatedly poked the females with one or both folded wings; the latter behaviour was the most conspicuous male courtship display. Immediately before copulation, males wrapped their wings around the females and bit their necks. As acoustic display, courting male C. perspicillata produced highly variable, monosyllabic courtship trills. The species’ vocal repertoire consisted of ten different social vocalisation types, three for benign interactions (courtship trills, wobbles, isolation calls), four for aggressive encounters (aggressive trills, down-sweeps, warbles, distress calls) and the remaining three for unknown behavioural contexts (V-shaped calls, flat down-sweeps, hooks). Courtship trills and aggressive trills were exclusively produced by males. We measured 245 courtship trills of five males and found statistical evidence for a strong individual signature which has the potential to facilitate female choice, mate recognition or neighbour–stranger recognition among male competitors.

scholarly journals Carollia perspicillata: A Small Bat with Tremendous Translational Potential for Studies of Brain Aging and Neurodegeneration

Biomedicines ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1454
Author(s):  
Mark Stewart ◽  
Timothy Morello ◽  
Richard Kollmar ◽  
Rena Orman
Keyword(s):  
Calcium Binding ◽  
Brain Aging ◽  
Hippocampal Formation ◽  
Experimental Studies ◽  
Protein Distribution ◽  
Carollia Perspicillata ◽  
Human Lifespan ◽  
Fruit Bat ◽  
Environment Control ◽  
The Impact

As the average human lifespan lengthens, the impact of neurodegenerative disease increases, both on the individual suffering neurodegeneration and on the community that supports those individuals. Studies aimed at understanding the mechanisms of neurodegeneration have relied heavily on observational studies of humans and experimental studies in animals, such as mice, in which aspects of brain structure and function can be manipulated to target mechanistic steps. An animal model whose brain is structurally closer to the human brain, that lives much longer than rodents, and whose husbandry is practical may be valuable for mechanistic studies that cannot readily be conducted in rodents. To demonstrate that the long-lived Seba’s short-tailed fruit bat, Carollia perspicillata, may fit this role, we used immunohistochemical labeling for NeuN and three calcium-binding proteins, calretinin, parvalbumin, and calbindin, to define hippocampal formation anatomy. Our findings demonstrate patterns of principal neuron organization that resemble primate and human hippocampal formation and patterns of calcium-binding protein distribution that help to define subregional boundaries. Importantly, we present evidence for a clear prosubiculum in the bat brain that resembles primate prosubiculum. Based on the similarities between bat and human hippocampal formation anatomy, we suggest that Carollia has unique advantages for the study of brain aging and neurodegeneration. A captive colony of Carollia allows age tracking, diet and environment control, pharmacological manipulation, and access to behavioral, physiological, anatomical, and molecular evaluation.

The Short-Tailed Fruit Bat Carollia perspicillata: A Model for Studies in Reproduction and Development

2009 ◽  
Vol 2009 (3) ◽  
pp. pdb.emo118-pdb.emo118 ◽  
Author(s):  
J. J. Rasweiler ◽  
C. J. Cretekos ◽  
R. R. Behringer
Keyword(s):  
Carollia Perspicillata ◽  
Fruit Bat
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