The Experts below are selected from a list of 8757 Experts worldwide ranked by ideXlab platform
Ludovic Dickel - One of the best experts on this subject based on the ideXlab platform.
-
Early familiarization overrides innate Prey Preference in newly hatched Sepia officinalis cuttlefish
Animal Behaviour, 2006Co-Authors: Anne-sophie Darmaillacq, Nadav Shashar, Raymond Chichery, Ludovic DickelAbstract:In the cuttlefish Sepia officinalis, hatchlings do not benefit from parental care and have to search independently for their own food. We investigated the effect of exposing newly hatched cuttlefish to a nonpreferred Prey on their subsequent choice of Prey. We tested the choice of food between crabs (nonpreferred) and shrimps (preferred) made by 3-day-old cuttlefish that had been exposed visually and chemically to crabs at hatching, or had been exposed visually only to crabs, or had had no exposure to crabs. Juveniles that had been exposed to crabs significantly preferred crabs, whereas hatchlings that had had no crab exposure preferred shrimps. These results show that a simple visual exposure to a naturally nonpreferred Prey immediately on hatching is sufficient to change the juvenile cuttlefish's innate Preference.
-
effect of early feeding experience on subsequent Prey Preference by cuttlefish sepia officinalis
Developmental Psychobiology, 2004Co-Authors: Anne-sophie Darmaillacq, Raymond Chichery, Roseline Poirier, Ludovic DickelAbstract:Food Preferences were investigated in cuttlefish during the first 3 months' posthatching, using choice tests between crabs, shrimps, and young fish. The results showed that without previous feeding experience, cuttlefish preferred shrimps on Day 3. This suggests an innate food Preference; however, it was possible to induce a Preference for an originally nonpreferred Prey item in 3-day-old and naive cuttlefish, demonstrating the flexibility of this initial behavioral Preference in response to previous individual experience. This Preference suggests a learning process involving a form of long-term memory, demonstrated for the first time in juvenile cuttlefish. Until Day 30, juvenile cuttlefish fed exclusively shrimps chose shrimps. This Preference probably depends on their previous feeding experience. Finally, it appears that from Day 60, cuttlefish reared on the same restricted diet have a tendency to switch their Preference to novel Prey items, which diversify their diet.
Anne-sophie Darmaillacq - One of the best experts on this subject based on the ideXlab platform.
-
Early familiarization overrides innate Prey Preference in newly hatched Sepia officinalis cuttlefish
Animal Behaviour, 2006Co-Authors: Anne-sophie Darmaillacq, Nadav Shashar, Raymond Chichery, Ludovic DickelAbstract:In the cuttlefish Sepia officinalis, hatchlings do not benefit from parental care and have to search independently for their own food. We investigated the effect of exposing newly hatched cuttlefish to a nonpreferred Prey on their subsequent choice of Prey. We tested the choice of food between crabs (nonpreferred) and shrimps (preferred) made by 3-day-old cuttlefish that had been exposed visually and chemically to crabs at hatching, or had been exposed visually only to crabs, or had had no exposure to crabs. Juveniles that had been exposed to crabs significantly preferred crabs, whereas hatchlings that had had no crab exposure preferred shrimps. These results show that a simple visual exposure to a naturally nonpreferred Prey immediately on hatching is sufficient to change the juvenile cuttlefish's innate Preference.
-
effect of early feeding experience on subsequent Prey Preference by cuttlefish sepia officinalis
Developmental Psychobiology, 2004Co-Authors: Anne-sophie Darmaillacq, Raymond Chichery, Roseline Poirier, Ludovic DickelAbstract:Food Preferences were investigated in cuttlefish during the first 3 months' posthatching, using choice tests between crabs, shrimps, and young fish. The results showed that without previous feeding experience, cuttlefish preferred shrimps on Day 3. This suggests an innate food Preference; however, it was possible to induce a Preference for an originally nonpreferred Prey item in 3-day-old and naive cuttlefish, demonstrating the flexibility of this initial behavioral Preference in response to previous individual experience. This Preference suggests a learning process involving a form of long-term memory, demonstrated for the first time in juvenile cuttlefish. Until Day 30, juvenile cuttlefish fed exclusively shrimps chose shrimps. This Preference probably depends on their previous feeding experience. Finally, it appears that from Day 60, cuttlefish reared on the same restricted diet have a tendency to switch their Preference to novel Prey items, which diversify their diet.
Raymond Chichery - One of the best experts on this subject based on the ideXlab platform.
-
Early familiarization overrides innate Prey Preference in newly hatched Sepia officinalis cuttlefish
Animal Behaviour, 2006Co-Authors: Anne-sophie Darmaillacq, Nadav Shashar, Raymond Chichery, Ludovic DickelAbstract:In the cuttlefish Sepia officinalis, hatchlings do not benefit from parental care and have to search independently for their own food. We investigated the effect of exposing newly hatched cuttlefish to a nonpreferred Prey on their subsequent choice of Prey. We tested the choice of food between crabs (nonpreferred) and shrimps (preferred) made by 3-day-old cuttlefish that had been exposed visually and chemically to crabs at hatching, or had been exposed visually only to crabs, or had had no exposure to crabs. Juveniles that had been exposed to crabs significantly preferred crabs, whereas hatchlings that had had no crab exposure preferred shrimps. These results show that a simple visual exposure to a naturally nonpreferred Prey immediately on hatching is sufficient to change the juvenile cuttlefish's innate Preference.
-
effect of early feeding experience on subsequent Prey Preference by cuttlefish sepia officinalis
Developmental Psychobiology, 2004Co-Authors: Anne-sophie Darmaillacq, Raymond Chichery, Roseline Poirier, Ludovic DickelAbstract:Food Preferences were investigated in cuttlefish during the first 3 months' posthatching, using choice tests between crabs, shrimps, and young fish. The results showed that without previous feeding experience, cuttlefish preferred shrimps on Day 3. This suggests an innate food Preference; however, it was possible to induce a Preference for an originally nonpreferred Prey item in 3-day-old and naive cuttlefish, demonstrating the flexibility of this initial behavioral Preference in response to previous individual experience. This Preference suggests a learning process involving a form of long-term memory, demonstrated for the first time in juvenile cuttlefish. Until Day 30, juvenile cuttlefish fed exclusively shrimps chose shrimps. This Preference probably depends on their previous feeding experience. Finally, it appears that from Day 60, cuttlefish reared on the same restricted diet have a tendency to switch their Preference to novel Prey items, which diversify their diet.
Martin Surbeck - One of the best experts on this subject based on the ideXlab platform.
-
behavioural diversity of bonobo Prey Preference as a potential cultural trait
eLife, 2020Co-Authors: Liran Samuni, Franziska Wegdell, Martin SurbeckAbstract:No human culture is quite like the next. Societies around the world show exceptional variety in their social norms, beliefs, customs, language and, of course, food. However, the origins of human culture still remain elusive. Studying humans’ closest living relatives, the great apes, is one way to explore how human culture first appeared. Chimpanzees are often studied for this purpose, but other great apes, such as bonobos, are often overlooked. Yet bonobos are less territorial and more tolerant to others than chimpanzees, with different bonobo groups sharing feeding spots and hunting grounds. These traits actually make bonobos an ideal animal for investigating whether differences in group behaviour, such as feeding habits, are distinct cultural trends or just a result of their surrounding environments. With this in mind, Samuni et al. studied the hunting and feeding patterns of two groups of wild bonobos in the Kokolopori Bonobo Reserve in the Democratic Republic of Congo. The two groups share approximately 65% of their home territory, allowing Samuni et al. to examine whether any differences in hunting Preferences persisted when the two groups looked for Prey in the same environment. The analysis would reveal whether social factors or environmental conditions influenced the hunting and feeding habits of each group. Samuni et al. found the first bonobo group specialized in hunting duiker, a type of antelope, whereas the second group preferred to hunt tree-gliding rodents. However, the location and timing of the bonobo’s hunts did not determine which types of Prey they hunted. Across their territory, and regardless of group size or the dynamics between males and females, the groups continued to hunt their preferred Prey. This means ecology alone cannot explain bonobo feeding habits and instead, the findings provide a strong indication for cultural variation between the two groups. Since social learning is a part of cultural development, the next challenge will be to determine if and how these group hunting Preferences are learned by young bonobos in their social group. For now, these findings provide a glimpse into the emergence of group culture.
-
behavioural diversity of bonobo Prey Preference as a potential cultural trait
eLife, 2020Co-Authors: Liran Samuni, Franziska Wegdell, Martin SurbeckAbstract:The importance of cultural processes to behavioural diversity in our closest living relatives is central to revealing the evolutionary origins of human culture. However, the bonobo is often overlooked as a candidate model. Further, a prominent critique to many examples of proposed animal cultures is premature exclusion of environmental confounds known to shape behavioural phenotypes. We addressed these gaps by investigating variation in Prey Preference between neighbouring bonobo groups that associate and overlap space use. We find group Preference for duiker or anomalure hunting otherwise unexplained by variation in spatial usage, seasonality, or hunting party size, composition, and cohesion. Our findings demonstrate that group-specific behaviours emerge independently of the local ecology, indicating that hunting techniques in bonobos may be culturally transmitted. The tolerant intergroup relations of bonobos offer an ideal context to explore drivers of behavioural phenotypes, the essential investigations for phylogenetic constructs of the evolutionary origins of culture.
-
behavioural diversity of bonobo Prey Preference as a potential cultural trait
bioRxiv, 2020Co-Authors: Liran Samuni, Franziska Wegdell, Martin SurbeckAbstract:The importance of cultural processes to behavioural diversity, especially in our closest living relatives, is central for revealing the evolutionary origins of human culture. Whereas potential cultural traits are extensively investigated in chimpanzees, our other closest living relative, the bonobo, is often overlooked as a candidate model. Further, a prominent critique to many examples of proposed animal cultures is premature exclusions of environmental confounds known to shape behavioural phenotypes. We addressed these gaps by investigating variation in Prey Preference expression between neighbouring bonobo groups that associate and share largely overlapping home ranges. We find specific group Preference for duiker or anomalure hunting that are otherwise unexplained by variation in spatial usage of hunt locations, seasonality or sizes of hunting parties. Our findings demonstrate that group-specific behaviours emerge independently of the local ecology, indicating that hunting techniques in bonobos may be culturally transmitted. We suggest that the tolerant intergroup relations of bonobos offer an ideal context to explore drivers of behavioural phenotypes, the essential investigations for phylogenetic constructs of the evolutionary origins of culture.
Pierre Taberlet - One of the best experts on this subject based on the ideXlab platform.
-
Prey Preference of Snow Leopard (Panthera uncia) in South Gobi, Mongolia
PLoS ONE, 2012Co-Authors: Wasim Shehzad, Thomas Michael Mccarthy, Francois Pompanon, Lkhagvajav Purevjav, Eric Coissac, Tiayyba Riaz, Pierre TaberletAbstract:Accurate information about the diet of large carnivores that are elusive and inhabit inaccessible terrain, is required to properly design conservation strategies. Predation on livestock and retaliatory killing of predators have become serious issues throughout the range of the snow leopard. Several feeding ecology studies of snow leopards have been conducted using classical approaches. These techniques have inherent limitations in their ability to properly identify both snow leopard feces and Prey taxa. To examine the frequency of livestock Prey and nearly-threatened argali in the diet of the snow leopard, we employed the recently developed DNA-based diet approach to study a snow leopard population located in the Tost Mountains, South Gobi, Mongolia. After DNA was extracted from the feces, a region of ~100 bp long from mitochondrial 12S rRNA gene was amplified, making use of universal primers for vertebrates and a blocking oligonucleotide specific to snow leopard DNA. The amplicons were then sequenced using a next-generation sequencing platform. We observed a total of five different Prey items from 81 fecal samples. Siberian ibex predominated the diet (in 70.4% of the feces), followed by domestic goat (17.3%) and argali sheep (8.6%). The major part of the diet was comprised of large ungulates (in 98.8% of the feces) including wild ungulates (79%) and domestic livestock (19.7%). The findings of the present study will help to understand the feeding ecology of the snow leopard, as well as to address the conservation and management issues pertaining to this wild cat.
