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159 results for “feeding ecology”
FIGURE 4 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 4. Anatomical features associated with filter feeding in crabeater seal (Lobodon carcinophaga skull, public domain image), and gray whale (Eschrichtius robustus skull, authors' work).
FIGURE 10 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 10. Odontoceti stem and familial level diversity through time. The group "Delphinoidea" includes Delphinidae, Monodontidae, and Phocoenidae, as well as extinct members of this crown group of uncertain phylogenetic placement. The "river dolphins" closely related to these taxa (Inioidea and Lipotidae) are plotted separately to emphasize their diversity in the fossil record compared to the present. "Ziphioidea" includes Ziphiidae and closely related stem taxa as identified by Bianucci et al. (2016). Dashed vertical lines: black, epoch boundaries; gray, age boundaries.
FIGURE 6 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 6. Generic level diversity of marine mammal groups through time. Dashed vertical lines: black, epoch boundaries; gray, age boundaries. All silhouettes used in Figures 6-20 are the authors' own work.
FIGURE 9 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 9. Mysticeti stem and familial level diversity through time. "Cetotheriidae s.l." is a paraphyletic group including all taxa that belong to crown Mysticeti but are not grouped with any of the four living families. Dashed vertical lines: black, epoch boundaries; gray, age boundaries.
FIGURE 2 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 2. Anatomical features associated with biting (pierce, grip-and-tear, and crushing) feeding. 1: Crushing in sea otter (Enhydra lutris skull, from Lawlor, 1979), 2: Grip-and-tear in leopard seal (Hydruga leptonyx skull, authors' work), 3: Pierce in Southern sea lion, (Otaria byronia skull, authors' work) and in Amazon river dolphin (Inia geoffrensis skull, authors' work).
FIGURE 12 in Feeding in marine mammals: An integration of evolution and ecology through time
FIGURE 12. Hypothesized ecological replacement of desmostylians (circles) by sirenians (squares) in the North Pacific Ocean. On the top, map of the localities of Tortonian age (11 Ma) where desmostylian and sirenian were recorded. On the bottom, map of the localities of Zanclean age (5 Ma) where sirenians were recorded. Desmostylia disappear from the fossil record by the end of the Tortonian (7.2 Ma) when sirenians, particularly Hydrodamalis spp., start colonizing this region, likely feeding on the same resources. Only one occurrence per genus is reported in each locality. Locality data for each occurrence of Desmostylia and Sirenia in the Tortonian and Zanclean were downloaded from PBDB (https://paleobiodb.org) using the search parameters described in Materials and Methods and then plotted on the map.
Figure 6 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 6. Canonical correspondence analysis (CCA) of larval instars of Amphipsyche meridiana, sampling dates and environmental variables in an irrigation pond outlet. Seven environmental variables: SO 3-, sulfate; DO, 4 dissolved oxygen; pH, NH3-N, ammonia-nitrogen; WT, water temperature; Density; Water depth.
Figure 1 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 1. The study site was an irrigation canal (a), where caddisfly larvae (b, black arrow) live in a dead snail shell, and the adult phase (c, red arrow) was captured using light traps (d).
Figure 2 in Ecology and life cycle of the filter-feeding Amphipsyche meridiana Ulmer 1902 (Trichoptera: Hydropsychidae) in an irrigation canal, central Thailand
Figure 2. Larva of Amphipsyche meridiana: a) larva, right lateral view; b), head, dorsal view; c), head, ventral view.
Figure 7 in Striped hyena Hyaena hyaena (Linnaeus 1758): feeding ecology based on den prey remains in a pastoralist landscape, southern Kenya
Figure 7: Age composition for livestock versus wild ungulates in the five dens considered.
Figure 6 in Striped hyena Hyaena hyaena (Linnaeus 1758): feeding ecology based on den prey remains in a pastoralist landscape, southern Kenya
Figure 6: Distribution (%MNI) of vertebrate categories represented in all dens studied.
Figure 4 in Striped hyena Hyaena hyaena (Linnaeus 1758): feeding ecology based on den prey remains in a pastoralist landscape, southern Kenya
Figure 4: Taxonomic distribution by MNI of various animal categories in the dens studied.
Figure 8 in Striped hyena Hyaena hyaena (Linnaeus 1758): feeding ecology based on den prey remains in a pastoralist landscape, southern Kenya
Figure 8: Ungulate MNI proportion representation by age and size class.
Figure 5 in Striped hyena Hyaena hyaena (Linnaeus 1758): feeding ecology based on den prey remains in a pastoralist landscape, southern Kenya
Figure 5: Ungulates distribution (NISP) by size class per den.
Data from: Feeding ecology underlies the evolution of cichlid jaw mobility
The fish feeding apparatus is among the most diverse functional systems in vertebrates. While morphological and mechanical variation of feeding systems are well studied, we know far less about the diversity of the motions that they produce. We explored patterns of feeding movements in African cichlids from Lakes Malawi and Tanganyika, asking whether the degree of kinesis is associated with dietary habits of species. We used geometric morphometrics to measure feeding kinesis as trajectories of shape change, based on 326 high-speed videos in 56 species. Cranial morphology was significantly related to feeding movements, both of which were distributed along a dietary axis associated with prey evasiveness. Small-mouthed cichlids that feed by scraping algae and detritus from rocks had low kinesis strikes, while large-mouthed species that eat large, evasive prey (fishes and shrimps) generated the greatest kinesis. Despite having higher overall kinesis, comparisons of trajectory shape (linearity) revealed that cichlids that eat mobile prey also displayed more kinematically conserved, or efficient, feeding motions. Our work indicates that prey evasiveness is strongly related to the evolution of cichlid jaw mobility, suggesting that this same relationship may explain the origins and diversity of highly kinetic jaws that characterize the super-radiation of spiny-rayed fishes.
Fig. 1 in Feeding ecology of a stream fish assemblage in an Atlantic Forest remnant (Serra do Japi, SP, Brazil)
Fig. 1. Location of the Serra Japi in the APAs of Jundiaí, Cabreúva, Cajamar and in the municipality of Pirapora do Bom Jesus (SP), showing sampling sites in the different streams. Adapted from "Atlas das Unidades de Conservação Ambiental do Estado de São Paulo- Parte II-Interior, SMA, 1998".
Fig. 1 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river
Fig. 1. Specimens of (a) Crenicichla lugubris (217 mm SL) and (b) C. aff. wallacii (51 mm SL) from the Cinaruco River, Venezuela.
Data from: Brain size evolution in pipefishes and seahorses: the role of feeding ecology, life history and sexual selection
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Data from: Structure-function covariation with nonfeeding ecological variables influences evolution of feeding specialization in Carnivora
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Disparate movement behaviour and feeding ecology in sympatric ecotypes of Atlantic cod
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International Brain Laboratory public data
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OpenNeuro
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