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2023

Lopez, N., Pauli, A., Seymour, K., & Jensvold, M.L. (2023, April). Chimpanzee Caregivers Daily Shift Reports: A Preliminary Thematic Analysis. Poster presentation at the Northwest Anthropological Association Conference, Spokane, WA.

2020

Collins, E. & Jensvold, M.L. (2020, December). Communicative Function of Utterances in Two Signing Chimpanzees. Poster and Presentation at Conférence Virtuelle SQEBC 2020 (Société Québecoise pour l'Étude Biologique du Comportement). December 10, 2020.

Patton, E., Garzone, C., Skinner, J., & Rich, E. (2020, May). Persistence of Lexicon in Signing Chimpanzees. Poster presented at the Central Washington University Symposium on University Research and Creative Expression, Ellensburg, WA.

Jensvold, M.L., Bauer, S., & Belanger, M. (2020, July). Quality of Life Assessment in Captive Chimpanzees. Poster presented at the Association for the Study of Animal Behaviour virtual conference July 16, 2020. https://www.asabvirtual.org/

2019

Dombrausky, K., Coffman, G., de Bree, E., Patton, D., & Jensvold, M.L. (2019, March). Chimpanzees Modulate Signs Emphatically. Poster presented at Northwest Anthropological Association, Kennewick, WA.

2018

Dombrausky, K., Coffman, G., de Bree, E., & Jensvold, M.L. (2018, March). Chimpanzees Modulate Signs in Requests. Poster presented at Northwest Anthropological Association, Boise, ID.

2017

Dombrausky, K., Hings, C., Jensvold, M.L., & Shaw, H. (2017, April). Variability in Sign Use in Chimpanzees Before and After Relocation. Poster Presented at Rocky Mountain Psychological Association, Salt Lake City, UT.

2015

Mulcahy, J.B. & Jensvold, M.L. (2015, June).  Toward a Common Goal:  Opportunities for Collaboration Between Primate Sanctuaries and Universities.  Paper presented at the American Society of Primatologists, Bend, OR.

Keenan, S. & Jensvold, M.L. (2015, April). Effects of Conversational Partner in Conversations with Chimpanzees.  Poster presented at the International Conference of Comparative Cognition, Melbourne Beach, FL.  

2014

Jensvold, M.L. (2014, October). Philosophy of Care for Chimpanzees in Sanctuary.  Invited symposium presentation North American Primate Sanctuary Association workshop.  San Antonio, TX.

Keenan, S. & Jensvold, M.L. (2014, May).  Contextual Use of the Sign “Black” in a Signing Chimpanzee.  Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

Putzier, A., Bettini, A., Keenan, S., & Jensvold, M.L. (2014, May).  Picture Naming in Signing Chimpanzees.  Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

2013

Carner, A., Sullins, K., Wilding, L., Hendrickson, B., & Jensvold, M.L. (2013, May).  Nighttime Enrichment Preferences of Three Captive Chimpanzees (Pan troglodytes).  Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

Keenan, S. & Jensvold, M.L. (2013, May).  Sign Dialects in Chimpanzees.  Paper presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

Mas, J., Carner, A., Sullins, K., Jensvold, M.L., & Zager, L. (2013, May).  Exploring Visitor Behavior at a Florida Zoo.  Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

Schulze, S., Mas, J., Stafford, R., & Jensvold, M.L. (2013, May).  Captive Chimpanzee Preference for Environmental Enrichment: Naturalistic Vs. Artificial.  Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg WA.

Keenan, S., & Jensvold, M.L. (2013, March). Sign Dialects in Chimpanzees.  Paper presented at the Northwest Anthropological Association Conference, Portland, OR.

Carner, A., Sullins, K., Wilding, L., Hendrickson, B., & Jensvold, M.L. (2013, March). Nighttime Enrichment Preferences of Three Captive Chimpanzees.  Poster presented at presented at the Northwest Anthropological Association Conference, Portland, OR.

Pritchard, A., Sheeran, L., Jensvold, M.L., Gabriel, K., Li, J., & Wagner, S., (2013, March).  Measuring Personality Traits in Provisioned Tibetan Macaques (Macaca thibetana), Mt. Huangshan, China.  Poster presented at presented at the Northwest Anthropological Association Conference, Portland, OR.

Schulze, S., Mas, J, Stafford, R., & Jensvold, M.L. (2013, March). Captive Chimpanzee Preference for Environmental Enrichment: Naturalistic vs. Artificial.  Poster presented at presented at the Northwest Anthropological Association Conference, Portland, OR.

2012

Keenan, S., & Jensvold, M.L. (2012, May).  Using Type-Token Ratio as Measurement for Lexical Diversity in Chimpanzees.  Paper presented at Paper presented at Symposium on University Research and Creative Expression, Central Washington University, Ellensburg, WA.

Keenan, S., & Jensvold, M.L. (2012, April).  Using Type-Token Ratio as Measurement for Lexical Diversity in Chimpanzees.  Paper presented at Rocky Mt. Psychological Association, Reno, NV.

Larsen, G., Campion, T., & Jensvold, M.L. (2012, April).  Gesture Use by Free-living Chimpanzees (Pan troglodytes) Related to Partner Attentional State.  Poster presented at Rocky Mt. Psychological Association, Reno, NV.

Leeds, C. & Jensvold, M.L. (2012, April).  Spontaneous and Adjacent Utterances in Chimpanzee Conversations.  Poster presented at Rocky Mt. Psychological Association, Reno, NV.

Mas, J., Pritchard, A., Jensvold, M.L., & Zager, L. (2012, April).  The Effect of Signage on Zoo Visitors at a Chimpanzee (Pan troglodytes) Exhibit.  Poster presented at Rocky Mt. Psychological Association, Reno, NV.

2011

Jensvold, M.L., Zager, L., & Bismanovsky, D. (2011, August). Promoting Animal Welfare: Interactions with Caregivers and Zoo Visitors. Paper presented at From Good Care to Great Welfare: Advancing Zoo Animal Welfare Science and Policy Symposium. Detroit, MI.

Bismanovsky, D. & Jensvold, M.L. (2011, May). Chimpanzee Responses to Visitors Using Chimpanzee-Friendly Behaviors. Paper presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg, WA.

Larsen, G., Jensvold, M.L., & Campion, T. (2011, May). Gesture Use by Free-Living Chimpanzees (Pan troglodytes). Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg, WA.

Reveles, J. & Jensvold, M.L. (2011, May). Visitor Opinion in Artificial vs. Natural Enrichment Conditions. Poster presented at Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg, WA.

Leeds, C.A., Davis, A., Jensvold, M.L., & Fouts, D. (2011, March). Evidence for Menstrual Synchrony in Captive Chimpanzees. Poster presented at the Northwest Anthropological Association, Moscow ID and (2011, May) Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg, WA.

Zager, L. & Jensvold, M.L. (2011, March). Encouraging Friendly Chimpanzee Behaviors. Paper presented at the Northwest Anthropological Association, Moscow ID.

2010

Jensvold, M.L., Stadtner, G., & Buckner, J. (2010, June). Measuring the Quality of Interactions Between Caregivers and Chimpanzees. Poster presented at Science in the Service of Animal Welfare, Universities Federation of Animal Welfare, York, UK.

Metzler, D., Jensvold, M.L., Fouts, D., & Fouts, R. (2010, May). Vocabulary Growth in Adult Cross-Fostered Chimpanzees. Paper presented at the Symposium on Undergraduate Research and Creative Expression, Central Washington University, Ellensburg, WA.

Jensvold, M.L. (2010, April). Interactive use of sign language by cross-fostered chimpanzees. Paper presentation at Sign Language Studies of Cross-Fostered Chimpanzees: Ongoing Inquiry Symposium. University of Nevada-Reno, NV.

Bismanovsky, D., Zager, L., & Jensvold M.L. (2010, March). Recent Patterns of Conversation in an Adult Chimpanzee Using American Sign Language. Paper presented at the Northwest Anthropological Association, Ellensburg, WA.

Cole, M., Herigstad, T., & Jensvold, M.L. (2010, March). Daily Arousal Level’s Effect on a Chimpanzee’s Categorical Sign Usage. Paper presented at the Northwest Anthropological Association, Ellensburg, WA.

Gibbons, J., Leake, M., Potosky, R., & Jensvold, M.L. (2010, March). Use of Holiday Related Signs by a Cross-Fostered Chimpanzee. Paper presented at the Northwest Anthropological Association, Ellensburg, WA.

Metzler, D., Jensvold, M.L., Fouts, D, & Fouts R. (2010, March). Vocabulary Growth in Adult Cross-Fostered Chimpanzees. Paper presented at the Northwest Anthropological Association, Ellensburg, WA.

Reveles, J., & Jensvold, M.L. (2010, March). Visitor Knowledge Gains in a New Educational Workshop: The Chimposium. Poster presented at the Northwest Anthropological Association, Ellensburg, WA.

2009

Jensvold, M.L., Buckner, J., & Stadtner. (2009, September). Caregiver-Chimpanzee Interactions with Species-Specific Behaviors. Paper presented at the joint conference of the International Congress of Zookeepers and American Association of Zookeepers, Seattle, WA.

McCarthy, M., Brown, H., Gray, A., Lee, K., Steele, R., Jensvold, M.L., & Fouts, D. (2009, May). The Effects of the Chimposium Educational Program on Visitor Knowledge and Attitudes. Paper presented at the Symposium on University Research and Creative Expression, Ellensburg, WA.

Leeds, C.A., McCarthy, M., Bismanovsky, D., Denton, T., Jensvold, M.L., & Fouts, D. (2009, May). Social Structure in Three Captive Chimpanzees. Poster presented at the Symposium on University Research and Creative Expression, Ellensburg, WA.

Metzler, D., Jensvold, M.L., Fouts, R., & Fouts, D. (2009, May). The Acquisition of New Signs in Adult Cross-Fostered Chimpanzees. Poster presented at the Symposium on University Research and Creative Expression, Ellensburg, WA.

O’Rahilly, K., Leake, M., Potosky, R., Wallin, J., Jensvold, M.L., Fouts, D., & Fouts, R. (2009, May). Vocabulary Use of Four Cross-Fostered Signing Chimpanzees. Poster presented at the Symposium on University Research and Creative Expression, Ellensburg, WA.

Metzler, D.K., Jensvold, M.L., Fouts, R.S., & Fouts, D.H. (2009, April). The Acquisition of New Signs in Adult Cross-Fostered Chimpanzees. Poster presented at the Northwest Anthropological Conference, Newport, OR.

O’Rahilly, K., Leake, M, Potosky, R., Wallin, J., Jensvold, M.L., Fouts, D., & Fouts, R. (2009, April). Vocabulary Use of Four Cross-Fostered Signing Chimpanzees. Poster presented at the Northwest Anthropological Conference, Newport, OR.
Rasmussen, C.L., & Jensvold, M.L. (2009, April). Contra Lateral Pointing in Cross-Fostered Chimpanzees. Poster presented at the Northwest Anthropological Conference, Newport, OR.

2008

Rasmussen, C.L., & Jensvold, M.L. (2008, November). Contra Lateral Pointing in Cross-Fostered Chimpanzees. Poster presented at the Annual Biomedical Research Conference for Minority Students, Orlando, FL.

Jensvold, M.L. (2008, April). The effects of species-specific behaviors in captive chimpanzees. Paper presented at the Rocky Mountain Psychological Association, Boise, ID.

Rasmussen, C., Jensvold, M.L., Fouts, R.S., Fouts, D.H., & Wallin, J. (2008, April). Signs of cultural transmission in a chimpanzee. Poster presented at the Rocky Mountain Psychological Association, Boise, ID.

Wallin, J. M., Jensvold, M. L., Fouts, R. S., & Fouts, D. H. (2008, April). The recent expressive lexicon of a cross-fostered chimpanzee. Poster presented at the 2008 Rocky Mountain Psychological Association, Boise, ID.

2007

Jensvold, M.L. (2007, October). Conversational repair in cross-fostered chimpanzees. Paper presented at the Semiotic Society Association, New Orleans, LA.

Halberg, R., Jensvold, M.L., & Sheeran, L. (2007, May). Laughter, number of play partners, age and play bout duration in captive chimpanzees (Pan troglodytes) in an African sanctuary. Poster presented at the Symposium for University Research and Creative Expression, Ellensburg, WA.

Jensvold, M.L. (2007, May). Use of species-specific behaviors in chimpanzee/caregiver interactions. Paper presented at the Central Washington University Symposium on University Research and Creative Expression, Ellensburg, WA.

McCarthy M.S., Jensvold, M.L., Fouts. R.S., & Fouts, D.H. (2007, May). Use of gesture sequences in captive chimpanzee play. Paper presented at the Central Washington University Symposium on University Research and Creative Expression, Ellensburg, WA.

Wallin, J. M., Jensvold, M. L., & Sheeran, L. K. (2007, May). Play, laughter, and humor in captive chimpanzees (Pan troglodytes). Paper presented at the Central Washington University Symposium on University Research and Creative Expression, Ellensburg, WA.

Marburg, T.L., Jensvold, M.L., Fouts, R., & Fouts, D. (2007, April). Comparison of intragroup greeting and reassurance behaviors across four chimpanzee (Pan troglodytes) social groups in American and African sanctuaries. Paper presented at the Northeast Anthropological Association, New York.

Hartel J.A., Jensvold M.L., Fouts R.S., & Fouts D.H. (2007, March). Signing chimpanzees' (Pan troglodytes) interactions with familiar and unfamiliar signers and nonsigners. Poster presented at The Mind of the Chimpanzee Conference, Chicago, IL.

McCarthy M.S., Jensvold, M.L., Fouts. R.S., & Fouts, D.H. (2007, March). Use of gesture sequences in captive chimpanzee play. Paper presented at the Rocky Mountain Psychological Association, Denver, CO.

2006

Wallin, J., Jensvold, M.L. & Sheeran, L. (2006, October). Chimpanzee play, laughter and humor. Poster presented at the Murdock Charitable Trust Annual Regional Undergraduate Research Conference. Portland, OR.

McCarthy, M., Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2006, May). Space use in captive chimpanzees. Paper presented at CWU Symposium on University Research and Creative Expression, Ellensburg, WA.

Jensvold, M.L., Sheeran, L., Halberg, R. & Keyser, J. (2006, May). Laughter, number of play partners, and play bout duration in captive chimpanzees (Pan troglodytes). Paper presented at CWU Symposium on University Research and Creative Expression, Ellensburg, WA.

McCarthy, M., Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2006, April). Space use in captive chimpanzees. Paper presented at the Rocky Mt. Psychological Association Conference, Park City, UT.

Puffer, A. M., Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2006, April). Weather influences chimpanzees’ choice to go outside. Paper presented at the Rocky Mt. Psychological Association Conference, Park City, UT.

Shiau, S. J., & Jensvold, M.L. (2006, April). Chimpanzee use of modulation in response to questions. Paper presented at the Rocky Mt. Psychological Association Conference, Park City, UT.

Jensvold, M.L., Sheeran, L.S., Halberg, R.H., & Keyser, J. (2006, March). Laughter, number of play partners, and play bout duration in captive chimpanzees (Pan troglodytes). Paper presented at the Northwest Anthropological Conference, Seattle, WA.

Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2005, November). Caring for chimpanzees. Poster presented at the annual Earthwatch Conference, Cambridge, MA.

2004

Jensvold, M.L., Baeckler, S.A., Fouts, R.S., & Fouts, D.H. (2004, October). Their own terms: Techniques in humane caregiving of captive chimpanzees. Poster presented at the International Society of Anthrozoology, Glasgow, Scotland, UK.

Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2004, April). Environmental enrichment with objects and caregivers for captive chimpanzees. Paper presented at the Rocky Mt. Psychological Association, Reno, NV.

Hartel, J., Jensvold, M.L., Bowman, H., Fouts, R., & Fouts, D. (2004, April). The effect of foraging on the activity budgets of four captive chimpanzees. Poster presented at the Rocky Mt. Psychological Association, Reno, NV.

2003

Jensvold, M.L., Fouts, R.S., & Fouts, D.H. (2003, April). Assessment of species typical behaviours in captive chimpanzees. Poster presented at Science in the Service of Animal Welfare, Universities Federation of Animal Welfare Symposium, Edinburgh, Scotland, UK.

Derbawka, M., Jensvold, M.L, Fouts, R., & Fouts, D. (2003, May). Chimpanzees’ use of objects on theme days. Poster presented at Source Undergraduate Conference, Ellensburg, WA.

2002

Jensvold, M.L., Fouts, R.S., & Fouts, D.H. (2002, November). Caring for chimpanzees. Poster presented at the annual Earthwatch Conference, Cambridge, MA.

Jensvold, M.L. (2002, May). Interactive use of sign language by cross-fostered chimpanzees. Paper presented at the First Conference of Faculty and Graduate Students Research on Scholarly Achievements, Ellensburg, WA.

Bowman, H., Jensvold, M.L., Fouts, D.H., & Fouts, R.S. (2002, May). Species typical use of objects in captive chimpanzees. Paper presented at the First Conference of Faculty and Graduate Students Research on Scholarly Achievements, Ellensburg, WA.

2001

Cohen, N., Martinson, J., Pieracci, M., Tata, M.J., Jensvold, M.L., & Fouts, R. (2001, September). The effect of an educational program on attitudes toward chimpanzees. Poster presented at the Chimpanzoo Conference, Portland, OR.

Hayashida, C., Grandia, A., Blake, S., Eburn, C., Jung, C., Parker, S., Jensvold, M.L., & Fouts, R. (2001, September). A social hierarchy of five chimpanzees. Poster presented at the Chimpanzoo Conference, Portland, OR.

Jaffe, S., Jensvold, M.L., & Fouts, D. (2001, September). Chimpanzee to chimpanzee signed interactions. Poster presented at the Chimpanzoo Conference, Portland, OR.

Fouts, R.S., & Jensvold, M.L. (2001, July). Armchair delusions v. empirical realities: A neurological model for the continuity of ape and human languaging. Paper presented at the American Academy of Arts and Sciences, Cambridge, MA.

Jensvold, M.L.A., Fouts, R.S., & Fouts, D.H. (2001, April). Novelty, plurality, and species typical behaviors: Their role in object enrichment in captive chimpanzees. Paper presented at the Rocky Mountain Psychological Association, Reno, NV.

2000

Jensvold, M.L.A. (2000, June). Cross-fostered chimpanzee conversational responses in signed interactions with humans. Poster presented at American Psychological Association, Miami, FL.

1999

Jensvold, M.L.A. (1999, April). Discussant for Ethological Studies of Captive Chimpanzees. Symposium at the Rocky Mountain Psychological Association, Ft. Collins, CO.

Jensvold, M.L.A., Fouts, R.S., Hood, J.H., Fouts, D.H., & Waters, G. (1999, June). Development of phrases in a signing chimpanzee. Paper presented at the Human Behavior and Evolution Society, Salt Lake City, UT.
Martin, A., Jensvold, M.L., Fouts, R.S., & Fouts, D.H. (1999, October). Behavioral changes in captive chimpanzees between two facilities. Paper presented at the Chimpanzoo Conference, Manhatten, KS.

Sanz, C.M., Fouts, D.H., Jensvold, M.L.A., & Fouts, R.S. (1999, April). Space use and locomotion behavior of five socially housed chimpanzees. Symposium conducted at the Rocky Mountain Psychological Association, Ft. Collins, CO.
Waters, G.S., McDowell, R.R., Jensvold, M.L., Fouts, R.S., & Fouts, D. (1999, October). Captive chimpanzee (Pan troglodytes) object enrichment: The effect of item novelty, category, and amount. Paper presented at the Chimpanzoo Conference, Manhatten, KS.

1998

Fouts, R.S., Fouts, D.H., & Jensvold, M.L.A. (1998, October). Space use and locomotion behaviors in chimpanzees. Poster presented at the Earthwatch Conference, Cambridge, MA.

Fouts, R.S., Fouts, D.H., & Jensvold, M.L.A. (1998, October). Caring for chimpanzees. Paper presented at the Earthwatch Conference, Cambridge, MA.

Sanz, C., King, B., Jensvold, M.L.A., Fouts, R., & Fouts, D. (1998, October). Human aesthetics versus chimpanzee needs. Poster presented at Chimpanzoo Conference, Los Angeles, CA.

1997

Jensvold, M.L.A. (1997, April). Chimpanzee’s responses to question series. Symposium conducted at Northwest Anthropological Association Conference, Ellensburg, WA.

Sanz, C.M., & Jensvold, M. L. A. (1997, April). Chimpanzees’ reaction to naive and educated visitors. Symposium conducted at Northwest Anthropological Association Conference, Ellensburg, WA.

Sanz, C.M., & Jensvold, M.L.A. (1997, May). Chimpanzees’ reaction to naive and educated visitors. Paper presented at Undergraduate Research Symposium, Ellensburg, WA.

1996

Jensvold, M.L.A. (1996, April). Chimpanzee responses to question series. Symposium conducted at the Rocky Mountain Psychological Association, Park City, UT.

1994

Jensvold , M.L.A., & Fouts, R.S. (1994). Behavioral changes in chimpanzees following a move to a larger facility. Paper presented at the American Society of Primatologists, Seattle, WA.

1993

Fouts, R.S., Fouts, D.H., Bodamer, M., Jensvold, M.L.A., Shaw, H., Radeke, M., & Simpson, D. (1993, July). Novel enrichment ideas for five socially housed chimpanzees. Poster presented at the First Annual Environmental Enrichment Conference, Portland, OR.

Fouts, R.S., Glenn, J., Jensvold, M.L.A., & Krause, M. (1993, July). A standard operating procedure for chimpanzee enrichment. Poster presented at the First Annual Environmental Enrichment Conference, Portland, OR.

Jensvold, M.L.A., Fouts, R.S., & Radeke, M. (1993, July). Environmental enrichment and species typical behaviors in captive chimpanzees. Poster presented at the First Annual Environmental Enrichment Conference, Portland, OR.

Jensvold, M.L.A., Kowalski, A., Radeke, M., & Fouts, R.S. (1993, April). Activity budgets of five socially housed chimpanzees. Poster presented at the Joint Conference of Western and Rocky Mountain Psychological Association, Phoenix, AZ.

1991

Abshire (Jensvold), M.L. (1991, April). Imaginary play in deaf children. Paper presented at the Western Psychological Association, Los Angeles, CA.

Fouts, R.S., Fouts, D.H., Abshire (Jensvold), M.L., & Bodamer, M. (1991, December). Private signing and imagination. Paper presented at Understanding Chimpanzees, Chicago Academy of Science, Chicago, IL.

1989

Abshire (Jensvold), M.L. (1989, April). New directions in chimpanzee sign language research. Symposium conducted at the Western Psychological Association, Reno, NV.

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