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Fig. 13 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 13. Size distribution of Eretmochelys imbricata from Bermuda. A, Individuals captured alive by scuba, snorkeling, or in the entrapment net (1970–2005). B, Stranded individuals that were dead, injured, sick, or trapped in marine debris (1980–2005).

Fig. 3 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 3. Study site at Secretary, Chiriqui Lagoon, Ngöbe-Buglé Comarca, Panama. Set nets were deployed on all labeled banks.

Fig. 9 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 9. The time in years from first capture to last recapture for 609 Chelonia mydas recaptured in Bermuda waters through August 2005. Time elapsed was calculated as number of months divided by 12, rounded to nearest year.

Fig. 2 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 2. The islands of Bermuda and the adjacent Bermuda Platform. Labeled sites indicate localities that were regularly sampled with an entrapment net by the Bermuda Turtle Project between 1990 and 2005.

Fig. 1 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 1. Life stage model of Chelonia mydas redrawn from Carr et al. (1978: fig. 2). Terminology for the two earliest stages has been updated.

Fig. 12 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 12. Satellite transmission history of a large subadult (78.6 cm SCLmin) Chelonia mydas from Bermuda. Argos locations displayed are the highest location class per day, selected from the hybrid output of the Douglas Argos filter algorithm. This output includes points passing the minimum redundant distance filter supplemented with points passing the distance angle rate filter during periods of migration.

Fig. 5 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 5. Size composition of Chelonia mydas in Bermuda. A, All turtles captured with an entrapment net from 1968–2005 (excludes recaptures). B, A subsample of C. mydas from Bermuda for which sex and maturity status were determined using laparoscopy; all animals were immature. C, Size distribution of 141 C. mydas that stranded in Bermuda between 1992 and 2005. D, Size (SCLmin) at last capture versus time in years to foreign recapture of 53 C. mydas tagged in Bermuda. Minimum adult size, indicated by the dashed line, is based on laparoscopy of 178 C. mydas in Bocas del Toro, Panama (this study; Meylan and Meylan, unpubl. data).

Fig. 11 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 11. Geographic distribution of 88 foreign tag returns (numbers in circles) through 2005 of Chelonia mydas originally tagged in Bermuda. The star indicates the only known nesting by a C. mydas tagged in Bermuda. This turtle was tagged in November 1992 and nested near Cancun, Mexico, during the summer of 2006.

Fig. 4 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 4. Study site at Zapatilla Cays, Bocas del Toro Province, Panama. Solid circles indicate sites sampled with nets between 1990 and 2005. Point O' Reef, Peachy, and Comfort are in the Caribbean Sea and were fished with ''ocean sets.'' All remaining sites are within Chiriqui Lagoon and were fished with standard set nets (see Methods).

Fig. 6 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 6. Carapace length (SCLmin), weight, and maturity status for 131 Chelonia mydas from Bermuda that were examined laparoscopically. Minimum adult size, indicated by the dashed line, is based on laparoscopy of 178 C. mydas in Bocas del Toro, Panama (this study; Meylan and Meylan, unpubl. data). For explanation of stages, see Methods.

Fig. 10 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 10. Satellite transmission histories of four large subadult Chelonia mydas from Bermuda. Argos locations displayed are the minimum redundant distance (MRD) output of the Douglas Argos filter algorithm. This output includes points that have a consecutive or near-consecutive neighbor within 6 km. Adaptive kernel density percent volume contours, calculated from the MRD dataset, are also displayed. A, Locations (n 5 103) and volume contours for PTT 07665 (70.4 cm SCLmin). B, Locations (n 5 103) and volume contours for PTT 11676 (72.0 cm SCLmin). C, Locations (n 5 141) and volume contours for PTT 11677 (71.8 cm SCLmin). D, Locations (n 5 253) and volume contours for PTT 60810 (70.0 cm SCLmin).

Fig. 7 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 7. Average number of Chelonia mydas caught per set of the entrapment net at Bermuda by month. Mean and one standard deviation are shown for all sets from January 1992–August 2005. Sample size above each bar is for the number of sets made during each month.

Fig. 8 in The Ecology And Migrations Of Sea Turtles 8. Tests Of The Developmental Habitat Hypothesis

Fig. 8. The number of Chelonia mydas caught at Bermuda per set of the entrapment net as a function of water temperature. Data shown are for 258 samples from January 1992–August 2005.

opencc-by-4.0Jun 2009View details →

Fig. 2 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river

Fig. 2. Map showing location of the Cinaruco River, a tributary of the Orinoco River in Venezuela's Apure State; the study reach is outlined with a rectangle.

opencc-by-4.0Jun 2009View details →

Fig. 4 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river

Fig. 4. Number of immature and mature gonads encountered in C. lugubris (a) and C. aff. wallacii (b) of different size classes during the dry season. (black barra) Mature (gonad state> 3); (white barra) immature (gonad state 1-2). C. lugubris (n = 102), C. aff. wallacii (n = 108).

opencc-zeroJul 2023View details →

Data from: An environmental habitat gradient and within-habitat segregation enable co-existence of ecologically similar bird species

<p>Niche theory predicts that ecologically similar species can co-exist through multidimensional niche partitioning. However, due to the challenges of accounting for both abiotic and biotic processes in ecological niche modelling, the underlying mechanisms that facilitate co-existence of competing species are poorly understood. In this study, we evaluated potential mechanisms underlying the co-existence of ecologically similar bird species in a biodiversity-rich transboundary montane forest in east-central Africa by computing niche overlap indices along an environmental elevation gradient, diet, forest strata, activity patterns, and within-habitat segregation across horizontal space. We found strong support for abiotic environmental habitat niche partitioning, with 55% of species pairs having separate elevation niches. For the remaining species pairs that exhibited similar elevation niches, we found that within-habitat segregation across horizontal space and to a lesser extent vertical forest strata provided the most likely mechanisms of species co-existence. Co-existence of ecologically similar species within a highly diverse montane forest was determined primarily by abiotic factors (e.g., environmental elevation gradient) that characterize the Grinnellian niche and secondarily by biotic factors (e.g., vertical and horizontal segregation within habitats) that describe the Eltonian niche. Thus, partitioning across multiple levels of spatial organization is a key mechanism of co-existence in diverse communities.</p>

opencc-by-4.0Jul 2020View details →

FIGURE 2 Different habitat types that were sampled during the 2018 in Taxonomy, ecology and distribution of the mosquitoes (Diptera: Culicidae) of the Dutch Leeward Islands, with a key to the adults and fourth instar larvae

FIGURE 2 Different habitat types that were sampled during the 2018 survey. Natural habitats: a) Bromelias, b) inflorescences of Heliconia sp. c) rock pool/beach pool, d) crab hole; Semi-natural habitats: e) temporary/permanent pond, Artificial habitats: f) bucket, g) well, h) car tire, i) abandoned swimming pool, j) cistern. Photos courtesy of K.-D.B. Dijkstra, J.G. van der Beek and K. Hulshof.

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Landscape connectivity, habitat isolation, and tick-borne pathogen ecology

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publicNov 2023View details →

Data for: Pollinator and habitat-mediated selection as potential contributors to ecological speciation in two closely related species

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