Log in

Relevant bibliographies by topics / Behavioral ontogeny / Journal articles

To see the other types of publications on this topic, follow the link: Behavioral ontogeny.

Journal articles on the topic 'Behavioral ontogeny'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Behavioral ontogeny.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ujike, Hiroshi, Kazuo Tsuchida, Kazufumi Akiyama, Yutaka Fujiwara, and Shigetoshi Kuroda. "Ontogeny of behavioral sensitization to cocaine." Pharmacology Biochemistry and Behavior 50, no. 4 (April 1995): 613–17. http://dx.doi.org/10.1016/0091-3057(94)00352-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kroodsma, Donald E. "Behavioral ontogeny research: No pain, no gain?" Behavioral and Brain Sciences 11, no. 4 (December 1988): 639–40. http://dx.doi.org/10.1017/s0140525x00053838.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Horback, K. M., and T. D. Parsons. "Ontogeny of behavioral traits in commercial sows." Animal 12, no. 11 (2018): 2365–72. http://dx.doi.org/10.1017/s1751731118000149.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Scalzo, F. "The ontogeny of behavioral sensitization to phencyclidine." Neurotoxicology and Teratology 14, no. 1 (February 1992): 7–14. http://dx.doi.org/10.1016/0892-0362(92)90023-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Yu, Yibo, Yun Wang, Liang Zhong, Hongjuan Zhu, and Jiapeng Qu. "Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)." Animals 11, no. 6 (June 4, 2021): 1676. http://dx.doi.org/10.3390/ani11061676.

Full text

Abstract:

Temperament is a consistent behavioral difference among individuals over time or in different contexts. A comprehensive understanding of temperament and complex behavioral interactions enhances knowledge on animal evolution, welfare, and productivity. However, reports on the development of behavioral consistency over ontogeny are vague. Here, we tested the ontogeny of the temperament and physiological traits of Tibetan sheep (Ovis aries) in three crucial age stages. The mean level of the risk-taking variable increased, while that of the vocalizations variable decreased. The exploration variable was stable over ontogeny. The novelty decreased and the heart rate increased from the juvenile to the adolescent stage but stabilized at the adult stage. The fecal cortisol concentration (CORT) variable was stable at the juvenile and adolescent stages but decreased at the adult stage. Stable correlations were reported for the juvenile and adolescent stages and for the behavioral variables and heart rate. However, some correlations emerged only after maturation, whereas others disappeared over ontogeny. Moreover, CORT was independent of temperament and heart rate at different ages. These results demonstrate that age affects temperament and physiology and their correlations. Hence, developmental aspects should be incorporated into future temperament studies.

APA, Harvard, Vancouver, ISO, and other styles

6

Rodriguez, M., and D. Afonso. "Ontogeny of T-maze behavioral lateralization in rats." Physiology & Behavior 54, no. 1 (July 1993): 91–94. http://dx.doi.org/10.1016/0031-9384(93)90048-k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Husband, Alan J., and Maree Gleeson. "Ontogeny of Mucosal Immunity—Environmental and Behavioral Influences." Brain, Behavior, and Immunity 10, no. 3 (September 1996): 188–204. http://dx.doi.org/10.1006/brbi.1996.0018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Guenther, A., and F. Trillmich. "Photoperiod influences the behavioral and physiological phenotype during ontogeny." Behavioral Ecology 24, no. 2 (November 1, 2012): 402–11. http://dx.doi.org/10.1093/beheco/ars177.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Coyle, Sallyeana, T. Celeste Napier, and George R. Breese. "Ontogeny of tolerance to haloperidol: Behavioral and biochemical measures." Developmental Brain Research 23, no. 1 (November 1985): 27–38. http://dx.doi.org/10.1016/0165-3806(85)90004-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Crusio, Wim E., and Andrea Schmitt. "Prenatal effects of parity on behavioral ontogeny in mice." Physiology & Behavior 59, no. 6 (June 1996): 1171–74. http://dx.doi.org/10.1016/0031-9384(95)02251-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

McDougall, Sanders A., Charlotte M. Nuqui, Anthony T. Quiroz, and Carrissa M. Martinez. "Early ontogeny of D-amphetamine-induced one-trial behavioral sensitization." Pharmacology Biochemistry and Behavior 104 (March 2013): 154–62. http://dx.doi.org/10.1016/j.pbb.2013.01.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Glaudas, Xavier, Christopher T. Winne, and Luke A. Fedewa. "Ontogeny of Anti-Predator Behavioral Habituation in Cottonmouths (Agkistrodon piscivorus)." Ethology 112, no. 6 (June 2006): 608–15. http://dx.doi.org/10.1111/j.1439-0310.2005.01183.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

NAKATSUKASA, MASATO, YUTAKA KUNIMATSU, YOSHIHIKO NAKANO, NAOKO EGI, and HIDEMI ISHIDA. "Postcranial bones of infant Nacholapithecus: ontogeny and positional behavioral adaptation." Anthropological Science 115, no. 3 (2007): 201–13. http://dx.doi.org/10.1537/ase.070409.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Oppenheim, Ronald W. "Steps toward a unified field of neural and behavioral ontogeny." Developmental Psychobiology 20, no. 3 (May 1987): 365–67. http://dx.doi.org/10.1002/dev.420200313.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Zelazo, Philip David, and J. Steven Reznick. "Ontogeny and intentionality." Behavioral and Brain Sciences 13, no. 4 (December 1990): 631–32. http://dx.doi.org/10.1017/s0140525x0008064x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Laforest, Krista V., Emily E. Peele, and Kara E. Yopak. "Ontogenetic Shifts in Brain Size and Brain Organization of the Atlantic Sharpnose Shark, Rhizoprionodon terraenovae." Brain, Behavior and Evolution 95, no. 3-4 (2020): 162–80. http://dx.doi.org/10.1159/000511304.

Full text

Abstract:

Throughout an animal’s life, species may occupy different environments and exhibit distinct life stages, known as ontogenetic shifts. The life histories of most sharks (class: Chondrichthyes) are characterized by these ontogenetic shifts, which can be defined by changes in habitat and diet as well as behavioral changes at the onset of sexual maturity. In addition, fishes experience indeterminate growth, whereby the brain and body grow throughout the organism’s life. Despite a presupposed lifelong neurogenesis in sharks, very little work has been done on ontogenetic changes in the brain, which may be informative about functional shifts in sensory and behavioral specializations. This study quantified changes in brain-body scaling and the scaling of six major brain regions (olfactory bulbs, telencephalon, diencephalon, optic tectum, cerebellum, and medulla oblongata) throughout ontogeny in the Atlantic sharpnose shark, <i>Rhizoprionodon terraenovae</i>. As documented in other fishes, brain size increased significantly with body mass throughout ontogeny in this species, with the steepest period of growth in early life. The telencephalon, diencephalon, optic tectum, and medulla oblongata scaled with negative allometry against the rest of the brain throughout ontogeny. However, notably, the olfactory bulbs and cerebellum scaled hyperallometrically to the rest of the brain, whereby these structures enlarged disproportionately as this species matured. Changes in the relative size of the olfactory bulbs throughout ontogeny may reflect an increased reliance on olfaction at later life history stages in <i>R. terraenovae</i>, while changes in the relative size of the cerebellum throughout ontogeny may be indicative of the ability to capture faster prey or an increase in migratory nature as this species moves to offshore habitats, associated with the onset of sexual maturity.

APA, Harvard, Vancouver, ISO, and other styles

17

Fletcher, M., and D. A. Wilson. "Ontogeny of odor discrimination." Physiology & Behavior 74, no. 4-5 (November 2001): 589–93. http://dx.doi.org/10.1016/s0031-9384(01)00602-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Jones, Kathy L., and Gordon A. Barr. "Ontogeny of morphine withdrawal in the rat." Behavioral Neuroscience 109, no. 6 (1995): 1189–98. http://dx.doi.org/10.1037/0735-7044.109.6.1189.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

SAMPSON, SCOTT D., MICHAEL J. RYAN, and DARREN H. TANKE. "Craniofacial ontogeny in centrosaurine dinosaurs (Ornithischia: Ceratopsidae): taxonomic and behavioral implications." Zoological Journal of the Linnean Society 121, no. 3 (November 1997): 293–337. http://dx.doi.org/10.1111/j.1096-3642.1997.tb00340.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Bowman, B. P., Brian Blatt, and Cynthia M. Kuhn. "Ontogeny of the behavioral response to dopamine agonists after chronic cocaine." Psychopharmacology 129, no. 2 (January 21, 1997): 121–27. http://dx.doi.org/10.1007/s002130050171.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Rivera-Gaxiola, Maritza, and Annette Karmiloff-Smith. "It's a far cry from speech to language." Behavioral and Brain Sciences 19, no. 4 (December 1996): 645–46. http://dx.doi.org/10.1017/s0140525x00043454.

Full text

Abstract:

AbstractWe agree with Müller's epigenetic view of evolution and ontogeny and applaud his multilevel perspective. With him, we stress the importance in ontogeny of progressive specialisation rather than prewired structures. However, we argue that he slips from “speech” to “language” and that, in seeking homologies, these two levels need to be kept separate in the analysis of evolution and ontogeny.

APA, Harvard, Vancouver, ISO, and other styles

22

Richardson, Rick, George Paxinos, and Jae Lee. "The ontogeny of conditioned odor potentiation of startle." Behavioral Neuroscience 114, no. 6 (2000): 1167–73. http://dx.doi.org/10.1037/0735-7044.114.6.1167.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Freeman, John H., Daniel A. Nicholson, Adam S. Muckler, Christine A. Rabinak, and Norma T. DiPietro. "Ontogeny of eyeblink conditioned response timing in rats." Behavioral Neuroscience 117, no. 2 (2003): 283–91. http://dx.doi.org/10.1037/0735-7044.117.2.283.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

GRAMSBERGEN, A., and J. IJKEMAPAASSEN. "Early lesions affect cell death in neuro-ontogeny." Behavioural Brain Research 26, no. 2-3 (November 1987): 220. http://dx.doi.org/10.1016/0166-4328(87)90194-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Shemenkova, T. V., T. S. Kalinina, G. T. Shishkina, and N. N. Dygalo. "Behavioral and Corticotropic Effects of ACTH during Early Postnatal Ontogeny in Rats." Bulletin of Experimental Biology and Medicine 154, no. 4 (February 2013): 464–66. http://dx.doi.org/10.1007/s10517-013-1978-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Rueppell, Olav, Tanya Pankiw, David I. Nielsen, M. Kim Fondrk, Martin Beye, and Robert E. Page. "The Genetic Architecture of the Behavioral Ontogeny of Foraging in Honeybee Workers." Genetics 167, no. 4 (August 2004): 1767–79. http://dx.doi.org/10.1534/genetics.103.021949.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Baram, Tallie Z., and O. Carter Snead. "Bicuculline induced seizures in infant rats: ontogeny of behavioral and electrocortical phenomena." Developmental Brain Research 57, no. 2 (December 1990): 291–95. http://dx.doi.org/10.1016/0165-3806(90)90055-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Kolta, M. G., F. M. Scalzo, S. F. Ali, and R. R. Holson. "Ontogeny of the enhanced behavioral response to amphetamine in amphetamine-pretreated rats." Psychopharmacology 100, no. 3 (March 1990): 377–82. http://dx.doi.org/10.1007/bf02244610.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Prechtl, James C., and Terry L. Powley. "Ontogeny, form, function, and prediction." Behavioral and Brain Sciences 13, no. 2 (June 1990): 318–31. http://dx.doi.org/10.1017/s0140525x00078961.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Povinelli, Daniel J., Mia C. Zebouni, and Christopher G. Prince. "Ontogeny, evolution, and folk psychology." Behavioral and Brain Sciences 19, no. 1 (March 1996): 137–38. http://dx.doi.org/10.1017/s0140525x00041972.

Full text

Abstract:

AbstractBarresi & Moore assume an equivalence between ontogenetic and evolutionaiy transformations of social understanding. The mechanisms of evolution allow for novel structures to arise, both through terminal addition and through the onset of novel pathways at time points that precede the end points of ancestral pathways. Terminal addition may not be the appropriate model for the evolution of human object-directed imitation, intermodal equivalence, or joint attention.

APA, Harvard, Vancouver, ISO, and other styles

31

Tomasello, Michael, Ann Gale Kruger, and Hilary Horn Ratner. "Culture, biology and human ontogeny." Behavioral and Brain Sciences 16, no. 3 (September 1993): 540–52. http://dx.doi.org/10.1017/s0140525x00031563.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Eckhardt, Robert B. "The evolution of language: Present behavioral evidence for past genetic reprogramming in the human lineage." Behavioral and Brain Sciences 29, no. 3 (June 2006): 284–85. http://dx.doi.org/10.1017/s0140525x06289064.

Full text

Abstract:

Language and life history can be related functionally through the study of human ontogeny, thus usefully informing our understanding of several unique aspects of the evolution of species. The operational principles outlined by Locke & Bogin (L&B) demonstrate that the present can provide a useful framework for understanding the past.

APA, Harvard, Vancouver, ISO, and other styles

33

Delprato, Dennis J. "Heredity × environment or developmental interactions?" Behavioral and Brain Sciences 18, no. 2 (June 1995): 297–98. http://dx.doi.org/10.1017/s0140525x00038504.

Full text

Abstract:

AbstractThis commentary acknowledges the importance of Davey's biocognitive approach to the uneven distribution of fears on the basis of its contribution to a human model for understanding fear. An integrated heredity-environment and developmental transactional approach based on field/system theory is recommended in place of the mechanistic heredity × environment interactionism that Davey uses to explain behavioral ontogeny.

APA, Harvard, Vancouver, ISO, and other styles

34

Безгін, К. С., М. П. Мартіянова, and В. В. Ушкальов. "CHARACTERISTICS OF INNOVATION-ORIENTED ORGANIZATION: A BEHAVIORAL PARADIGM." Підприємництво та інновації, no. 11-1 (May 29, 2020): 126–35. http://dx.doi.org/10.37320/2415-3583/11.18.

Full text

Abstract:

The article summarizes the arguments and counterarguments in the scientific debate on the use of a behavioral approach to managing an innovation-oriented organization. The main purpose of the study is to identify typical characteristics of modern innovation organizations that emerge in the process of ontogeny of the organization, have a behavioral nature and contribute to improving the effectiveness of innovation. As a result, the characteristics of modern innovative organizations that determine the effectiveness of their activity are determined. The change of behavior of innovatively active subjects at the subject and polysubjective levels under the influence of administration, routine and violation of integrity of activity is shown. Mentioned set of features can be used as a benchmark in modeling and managing innovation activity and innovation processes in organizations.

APA, Harvard, Vancouver, ISO, and other styles

35

Walter, C. B., and K. Kamm. "Optimal search strategies for optimal motor solutions: Self-determination or informed guidance?" Behavioral and Brain Sciences 19, no. 1 (March 1996): 91–92. http://dx.doi.org/10.1017/s0140525x00041753.

Full text

Abstract:

AbstractImpoverished resources may direct the pathologic central nervous system toward local solutions during ontogeny. The resultant motor behavior can be systemically optimal without being functionally optimal. Therapeutic intervention should focus on facilitating function (rather than “normalcy”) by encouraging behavioral exploration through appropriate combinations of task and environmental variations with respect to individual capabilities. Some health professions have already adopted this philosophy.

APA, Harvard, Vancouver, ISO, and other styles

36

Greenberg, Gary. "Comparative Psychology: An Epigenetic Approach." Teaching of Psychology 14, no. 3 (October 1987): 145–47. http://dx.doi.org/10.1207/s15328023top1403_3.

Full text

Abstract:

This article describes a comparative psychology course oriented around the themes of phylogeny and ontogeny. Accordingly, the course emphasizes the evolution and development of behavioral processes. Significant features of the course include discussion of the concept of integrative levels and Schneirla's approach/withdrawal theory. The course evaluates genetic determinism as used by ethologists and sociobiologists and stresses the principle of parsimony.

APA, Harvard, Vancouver, ISO, and other styles

37

Bennett, C., and S. Lyndaker Lindsey. "Some notes on the physiological and behavioral ontogeny of okapi (Okapia Johnstoni) calves." Zoo Biology 11, no. 6 (1992): 433–42. http://dx.doi.org/10.1002/zoo.1430110609.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Lin, Betty, Keith A. Crnic, Linda J. Luecken, and Nancy A. Gonzales. "Ontogeny of emotional and behavioral problems in a low-income, Mexican American sample." Developmental Psychology 53, no. 12 (December 2017): 2245–60. http://dx.doi.org/10.1037/dev0000391.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

House, Bailey R., Joseph Henrich, Sarah F. Brosnan, and Joan B. Silk. "The ontogeny of human prosociality: behavioral experiments with children aged 3 to 8." Evolution and Human Behavior 33, no. 4 (July 2012): 291–308. http://dx.doi.org/10.1016/j.evolhumbehav.2011.10.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Tsuchida, K., H. Ujike, A. Kanzaki, Y. Fujiwara, and K. Akiyama. "Ontogeny of enhanced striatal dopamine release in rats with methamphetamine-induced behavioral sensitization." Pharmacology Biochemistry and Behavior 47, no. 1 (January 1994): 161–69. http://dx.doi.org/10.1016/0091-3057(94)90126-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Satoh, Shun, Hideaki Tanoue, Sandrine Ruitton, Masahiko Mohri, and Teruhisa Komatsu. "Morphological and behavioral ontogeny in larval and early juvenile discus fish Symphysodon aequifasciatus." Ichthyological Research 64, no. 1 (May 27, 2016): 37–44. http://dx.doi.org/10.1007/s10228-016-0530-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

De Loor, Pierre, Kristen Manac’h, and Pierre Chevaillier. "The memorization of in-line sensorimotor invariants: toward behavioral ontogeny and enactive agents." Artificial Life and Robotics 19, no. 2 (June 1, 2014): 127–35. http://dx.doi.org/10.1007/s10015-014-0143-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Takahashi, Lorey K. "Ontogeny of behavioral inhibition induced by unfamiliar adult male conspecifics in preweanling rats." Physiology & Behavior 52, no. 3 (September 1992): 493–98. http://dx.doi.org/10.1016/0031-9384(92)90336-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Feeser, Hilarey R., and Lisa A. Raskin. "Effects of neonatal dopamine depletion on spatial ability during ontogeny." Behavioral Neuroscience 101, no. 6 (1987): 812–18. http://dx.doi.org/10.1037/0735-7044.101.6.812.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Kehoe, Priscilla, and James C. Harris. "Ontogeny of noradrenergic effects on ultrasonic vocalizations in rat pups." Behavioral Neuroscience 103, no. 5 (1989): 1099–107. http://dx.doi.org/10.1037/0735-7044.103.5.1099.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Johnson, Mark. "Parcellation and plasticity: Implications for ontogeny." Behavioral and Brain Sciences 11, no. 03 (September 1988): 547. http://dx.doi.org/10.1017/s0140525x00058891.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Dickins, Thomas E. "The phylogeny and ontogeny of adaptations." Behavioral and Brain Sciences 29, no. 3 (June 2006): 283–84. http://dx.doi.org/10.1017/s0140525x06279068.

Full text

Abstract:

Locke & Bogin (L&B) rightly point to the absence of ontogeny in theories of language evolution. However, they overly rely upon ontogenetic data to isolate components of the language faculty. Only an adaptationist analysis, of the sort seen in evolutionary psychology, can carve language at its joints and lead to testable predictions about how language works.

APA, Harvard, Vancouver, ISO, and other styles

48

Li, Haifeng, Xinyu Zhang, Yi Wu, Feng Zhang, and Chunlin Li. "Environmental temperature during early life affects the personality of mosquitofish in adulthood." Current Zoology 67, no. 5 (January 20, 2021): 481–88. http://dx.doi.org/10.1093/cz/zoab003.

Full text

Abstract:

Abstract Personality has been observed in a variety of animal taxa with important implications in ecology and evolution. Exploring the influence of environmental temperature during early life on personality could help to understand the ontogeny of this phenotypic trait in animals. In this study, we reared newborn mosquitofish Gambusia affinis at high (30°C) and low (25°C) water temperatures and measured their shyness and exploration upon sexual maturity. We tested the repeatability of each behavioral trait; the correlation between them; and the effects of rearing temperature, sex, and body length on the behaviors. When growing up at low temperatures, female fish exhibited repeatability in shyness and exploration, and males exhibited marginal repeatability in shyness. However, neither of the 2 behaviors were repeatable when the fish were reared at high temperatures. There was a negative correlation between shyness and exploration, indicating that the 2 behaviors comprise a behavioral syndrome in this species. Mosquitofish reared at high temperatures were more explorative than those reared at low temperatures, while there was no difference in shyness between the 2 treatments. Body length and sex had no significant effects on the average values of the 2 behaviors. The results indicate that environmental temperature during early life could shape the personality of mosquitofish and modify the average of the behavioral traits. These findings might provide insights to understand the ontogeny of animal personality and how changes in environmental temperature influence animal dispersal by shaping their personality.

APA, Harvard, Vancouver, ISO, and other styles

49

Karamanlidis, AA, P. Dendrinos, and F. Trillmich. "Maternal behavior and early behavioral ontogeny of the Mediterranean monk seal Monachus monachus in Greece." Endangered Species Research 45 (May 6, 2021): 13–20. http://dx.doi.org/10.3354/esr01114.

Full text

Abstract:

Understanding behavioral ontogeny is important for the successful conservation of endangered marine mammals. This is particularly the case for phocid seals, as during the early stages of their life they must acquire, largely independently, essential survival skills. We studied the maternal behavior and early behavioral ontogeny of the Mediterranean monk seal, one of the most endangered marine mammals on Earth, by installing a remote-controlled, infrared, video system in a pupping cave in Greece and recording the behavior of 2 adult females and their newborn pups (September 2007 to March 2008). Behavioral observations focused on the monitoring of individual attendance (i.e. percentage of time spent in attendance and attendance time) and the description of interactions. Following parturition, the percentage of time spent in attendance of both mothers and pups decreased gradually as pups developed towards independence. Overall, the pupping cave was used almost continuously by the 4 individuals for 3 to 4 mo. Similarly, attendance times also decreased after parturition. During the first 10 d postpartum, maternal attendance was followed by a 0.5 to 13.8 h absence, during which we presume that the adult females went out foraging. We also detail various in-cave interactions for the first time in Mediterranean monk seals in Greece, including lactations, interactions between mothers and pups, interactions between pups and general seal interactions. Our study increases our understanding of the in-cave behavior of the Mediterranean monk seal, while highlighting the vital role of suitable caves in the reproduction and survival of the species and the necessity to effectively protect this type of habitat.

APA, Harvard, Vancouver, ISO, and other styles

50

Higgs, D., and L. Fuiman. "Ontogeny of visual and mechanosensory structure and function in Atlantic menhaden Brevoortia tyrannus." Journal of Experimental Biology 199, no. 12 (December 1, 1996): 2619–29. http://dx.doi.org/10.1242/jeb.199.12.2619.

Full text

Abstract:

The importance of visual, mechanoreceptive and auditory inputs to escape responses was examined in larvae of the Atlantic menhaden (Brevoortia tyrannus) presented with a simulated predatory stimulus. Ontogenetic changes in the retina, superficial neuromasts and auditory bullae were examined in concert with behavioral trials in which sensory inputs were selectively blocked. Menhaden larvae showed a decrease in cone photoreceptor density and first developed rod photoreceptors when their total length (TL) reached 810 mm; they began summing photoreceptive inputs at 1214 mm TL. Inflation of the auditory bullae was complete by 15 mm TL. The proliferation of superficial neuromasts varied depending on their location, with cephalic superficial neuromasts decreasing in number beginning at 19 mm TL and numbers of trunk neuromasts continuing to increase throughout the larval period. In behavioral trials, responsiveness and the reactive distance to the approaching probe increased with increasing larva total length when all sensory inputs were available (control larvae). When visual inputs were blocked, responsiveness was lower than in control larvae, but still increased ontogenetically, while reactive distance showed no difference between control larvae and those lacking visual information. When neuromasts were ablated, ontogenetic increases in responsiveness and reactive distance were absent. Inflation of the auditory bullae had no discernible effect on behavior. The anatomical and behavioral results suggest that both vision and mechanoreception are used to trigger a response to a looming predatory stimulus and that mechanoreception, but not vision, contributes to the timing of the response. Ontogenetic improvements in performance are attributed mainly to neuromast proliferation and not to ontogenetic changes in the retina.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!