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37 results for “Alligatoridae”
FIGURE 4. Caiman crocodilus fuscus, FMNH 69849 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 4. Caiman crocodilus fuscus, FMNH 69849. Skull in dorsal, lateral and ventral views. Jaw in dorsal view.
FIGURE 7 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 7. Distribution of C. c. apaporiensis, C. crocodilus complex and C. yacare along the first and second principal components axes.
FIGURE 5. Caiman crocodilus crocodilus, FMNH 26672 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 5. Caiman crocodilus crocodilus, FMNH 26672. Skull in dorsal, lateral and ventral views. Jaw in dorsal view.
FIGURE 3. Caiman crocodilus chiapasius, FMNH 73709 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 3. Caiman crocodilus chiapasius, FMNH 73709. Skull in dorsal, lateral and ventral views. Jaw in dorsal view.
FIGURE 2 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 2. Caiman yacare (= C. crocodilus yacare), FMNH 9150. Skull in dorsal, lateral and ventral views. Jaw in dorsal view.
FIGURE 1 in Morphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae)
FIGURE 1. Caiman crocodilus apaporiensis, holotype, FMNH 69812. Skull in dorsal, lateral and ventral views. Jaw in dorsal view.
Drymarchon corais (Colubridae) and Caiman crocodilus (Alligatoridae) use different feeding behaviors to consume poisonous toads
<p><span>Drymarchon corais</span><span> and Caiman crocodilus are reported here using different feeding behaviors for consuming poisonous toads of the genus Rhinella (Bufonidae). Drymarchon corais was observed feeding on specimens of Rhinella diptycha without avoiding contact with the parotoid macroglands, suggesting that this snake species is immune to toad toxins. Caiman crocodilus was recorded avoiding contact with the parotoid macroglands of specimens of Rhinella marina by consuming only the front and rear legs, suggesting that this caiman may be sensitive to toad toxins. Further experimental and field studies are needed to better understand the feeding behavior of D. corais and C. crocodilus, and the effects of Rhinella toxins on these predators.</span></p>
Figure 1 in Parental care in the dwarf caiman, Paleosuchus palpebrosus Cuvier, 1807 (Reptilia: Crocodilia: Alligatoridae)
Figure 1. Locations of survey in three sites, around the Pantanal (1), in the Guaporé-Madeira (2) and Amazon Rivers (3), Brazil.
Figure 2 in Parental care in the dwarf caiman, Paleosuchus palpebrosus Cuvier, 1807 (Reptilia: Crocodilia: Alligatoridae)
Figure 2. Number of hatchlings of Paleosuchus palpebrosus counted in sites around the Pantanal, in the Guaporé-Madeira and Amazon Rivers between 2005 and 2011. Groups accompanied by an adult are indicated by triangles, and those for which an accompanying adult was not detected are shown by circular symbols.
FIGURE 1 in The distress call of Caiman crocodilus crocodilus (Crocodylia: Alligatoridae) in western Amazonia, Brazil
FIGURE 1. Distress calls of Caiman crocodilus crocodilus from Mamirauá SDR, Amazonas State, Brazil; (A-B-C) waveform, spectrogram and spectrogram view slice of screech type of call, individual 2, (D-E-F) waveform, spectrogram and spectrogram view slice of moan type of call, individual 1; (G) individual 2 recorded of C. crocodilus.
FIGURE 1 in Misconceptions about the taxonomy and distribution of Caiman crocodilus chiapasius and C. crocodilus fuscus (Reptilia: Crocodylia: Alligatoridae)
FIGURE 1. Distribution of Caiman crocodilus subspecies based on mtDNA analysis (see, Venegas-Anaya et al. 2008) and location of holotype. Caiman crocodilus crocodilus type-locality is unknown (King & Burke 1989), but Medem (1983) considered it to be the Demerara River, Guyana.
Drymarchon corais (Colubridae) and Caiman crocodilus (Alligatoridae) use different feeding behaviors to consume poisonous toads
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Figs 7–8 in Eimeria spp. (Apicomplexa: Eimeriidae) in Black Caiman Melanosuchus niger (Crocodilia: Alligatoridae) from the Amazon Region, Brazil, with a Description of Two New Coccidian Species
Figs 7–8. Line drawings of sporulated coccidian oocysts collected from black caiman faeces. 7 – Eimeria nigeri n. sp.; 8 – Eimeria portovelhensis n. sp.
Data from: Mating system of Caiman yacare (Reptilia Alligatoridae) described from microsatellite genotypes
The yacare caiman (Caiman yacare) is a reptile from South America and 1 of the 2 crocodilian species present in Argentina. The degradation of their natural habitat and strong hunting pressure led to a sharp numerical decline of wild populations. Nowadays, C. yacare is included in Appendix II of CITES, and ranching practices in some areas in Argentina are helping hatching success. In this context, it is important to better understand the population structure and mating system of the species. To do this, we amplified 10 microsatellite markers (SSRs) in 148 individuals of 13 C. yacare nests. All of the markers were polymorphic with 2–12 alleles per locus, with allelic sizes ranging between 154 and 400 bp and medium levels of polymorphism (H o = 0.152–0.551 and H e = 0.221–0.621). We were able to determine the maternal genotype in 9 out of 13 nests. In 6 of them we found more than 1 paternal genotype, with a maximum of 3 fathers for a single nest. This study is the first to provide evidence of multiple paternity behavior. These findings will be useful to improve management and conservation strategies for the species.
Figure 11 in Growth and textural ageing in long bones of the American alligator Alligator mississippiensis (Crocodylia: Alligatoridae)
Figure 11. Relationships between bone texture type and femur length body-size proxy for individuals with known habitat. A, femora. B, tibiae. C, humeri.
Figure 5 in Growth and textural ageing in long bones of the American alligator Alligator mississippiensis (Crocodylia: Alligatoridae)
Figure 5. Relationships between femur length body-size proxy and element percentage maturity based on cluster analyses of long bone landmarks. A, femora: three individuals 25% mature, 21 individuals 50% mature, 61 individuals 75% mature, 24 individuals 100% mature. B, tibiae: one individual 0% mature, 16 individuals 33% mature, 24 individuals 67% mature, four individuals 100% mature. C, humeri: three individuals 0% mature, seven individuals 33% mature, 32 individuals 67% mature, six individuals 100% mature.
Data from: Mating system of Caiman yacare (Reptilia Alligatoridae) described from microsatellite genotypes
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International Brain Laboratory public data
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OpenNeuro
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