Find research datasets worth reusing

opennotspecifiedMar 2013View details →

Subspecies and Distribution. A. [. fusciceps Gray, 1866 — NW Ecuador, W of the Andes, historically in the provinces of Esmeraldas and Carchi, from the Colombian border S to the Cordillera de Colonche in the Guayas Province (most S record is in "Puente sobre el rio Chimbo," Chimborazo Province), but today it is restricted to two remnant populations (Awa Ethnological Reserve N of the Rio Mira, and Cotacachi-Cayapas Ecological Reserve and adjacent Los Cedros Protected Forest and surrounding forests S of the Rio Mira). A. f. rufiventris Sclater, 1872 — E Panama (Atlantic slope) and W Colombia from the Uraba region in NW Antioquia, N through Cordoba, Sucre, and N Bolivar departments (N distributional limit on the S bank of the Canal del Dique, Cartagena), W of the Rio Cauca to the coast, E to the lower Rio Cauca along the W bank to SC Antioquia (the Cerro Pirre or the Rio Tucuti marks the border with A. geoffroyi grisescens), and S to the Cordillera Occidental of the Andes in SW Colombia (the most southerly record is Barabacoas, Narino Department). in Atelidae

Subspecies and Distribution. A. [. fusciceps Gray, 1866 — NW Ecuador, W of the Andes, historically in the provinces of Esmeraldas and Carchi, from the Colombian border S to the Cordillera de Colonche in the Guayas Province (most S record is in "Puente sobre el rio Chimbo," Chimborazo Province), but today it is restricted to two remnant populations (Awa Ethnological Reserve N of the Rio Mira, and Cotacachi-Cayapas Ecological Reserve and adjacent Los Cedros Protected Forest and surrounding forests S of the Rio Mira). A. f. rufiventris Sclater, 1872 — E Panama (Atlantic slope) and W Colombia from the Uraba region in NW Antioquia, N through Cordoba, Sucre, and N Bolivar departments (N distributional limit on the S bank of the Canal del Dique, Cartagena), W of the Rio Cauca to the coast, E to the lower Rio Cauca along the W bank to SC Antioquia (the Cerro Pirre or the Rio Tucuti marks the border with A. geoffroyi grisescens), and S to the Cordillera Occidental of the Andes in SW Colombia (the most southerly record is Barabacoas, Narino Department).

opencc-zeroMar 2022View details →

Data from: Ancestral ecological regime shapes reaction to food limitation in the Least Killifish, Heterandria formosa

Populations with different densities often show genetically-based differences in life histories. The divergent life histories could be driven by several agents of selection, one of which is variation in per-capita food levels. Its relationship with population density is complex, as it depends on overall food availability, individual metabolic demand, and food-independent factors potentially affecting density, such as predation intensity. Here we present a case study of two populations of a small live-bearing freshwater fish, one characterised by high density, low predation risk, low overall food availability, and presumably low per-capita food levels, and the other by low density, high predation risk, high overall food availability, and presumably high per-capita food levels. Using a laboratory experiment we examined whether fish from these populations respond differently to food limitation, and whether size at birth, a key trait with respect to density variation in this species, is associated with any such differential responses. While at the lower food level growth was slower, body size smaller, maturation delayed and survival reduced in both populations, these fitness costs were smaller in fish from the high-density population. At low food, only 15% of high-density fish died, compared to 75% of low-density fish. This difference was much smaller at high food (0% vs. 15% mortality). The increased survival of high-density fish may, at least partly, be due to their larger size at birth. Moreover, being larger at birth enabled fish to mature relatively early even at the lower food level. We demonstrate that sensitivities to food limitation differ between study populations, consistent with selection for a greater ability to tolerate low per-capita food availability in the high-density population. While we cannot preclude other agents of selection from operating in these populations simultaneously, our results suggest that variation in per-capita food levels is one of those agents.

opennotspecifiedMar 2013View details →

Distribution. NE Bolivia (throughout much of lowland Bolivia E of the Rio Manique) and W Brazil (S Rondonia State at least as far W as the upper Rio Jiparana). S limits are unclear, but it occurs in the vicinity of the Bolivian city of Santa Cruz and may contact or intergrade with the distribution of the Pale Titi (C. pallescens) in SE Bolivia; in Rondonia, it may occur as far N as the Serra dos Pacaas Novos, where there may be a contact zone with the Brown Titi (C. brunneus) or Prince Bernhard's Titi (C. bernhardi); the S and E limits ofits distribution in Brazil are unclear, but they may be ecologically constrained by inappropriate habitats in the Brazilian cerrado savannas to the S, and possible contact zones with Prince Bernhard's Titi (which is now known to occur to the W of the Rio Jiparana) and the Ashy Titi (C. cinerascens) in the E. in Phitheciidae

Distribution. NE Bolivia (throughout much of lowland Bolivia E of the Rio Manique) and W Brazil (S Rondonia State at least as far W as the upper Rio Jiparana). S limits are unclear, but it occurs in the vicinity of the Bolivian city of Santa Cruz and may contact or intergrade with the distribution of the Pale Titi (C. pallescens) in SE Bolivia; in Rondonia, it may occur as far N as the Serra dos Pacaas Novos, where there may be a contact zone with the Brown Titi (C. brunneus) or Prince Bernhard's Titi (C. bernhardi); the S and E limits ofits distribution in Brazil are unclear, but they may be ecologically constrained by inappropriate habitats in the Brazilian cerrado savannas to the S, and possible contact zones with Prince Bernhard's Titi (which is now known to occur to the W of the Rio Jiparana) and the Ashy Titi (C. cinerascens) in the E.

Fig 10 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 10. Rhombophryne proportionalis sp. nov., holotype ZSM 1826/2010, in life. (a) dorsolateral, (b) dorsal, and (c) ventral view. https://doi.org/10.1371/journal.pone.0213314.g010

Fig 8 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 8. Osteology of Mini scule gen. et sp. nov. holotype (ZSM 5943/2005). (a, b) Whole skeleton in (a) dorsal and (b) ventral view. (c-f) Skull in (c) lateral, (d) ventral, (e) anterior, and (f) dorsal view. (g) Foot in ventral view. (h) Hand in ventral view. For abbreviations, see Fig 6. https://doi.org/10.1371/journal.pone.0213314.g008

Fig 6 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 6. Osteology of Mini mum gen. et sp. nov. holotype (ZSM 861/2014). (a-c) Whole skeleton in (a) dorsal, (b) lateral, and (c) ventral view. (d-g) Skull in (d) lateral, (e) ventral, (f) anterior, and (g) dorsal view. (h) Foot in ventral view. (i) Hand in ventral view. Abbreviations for all osteological figures: angspl, angulosplenial; col.pip, pars interna plectra of columella; col.pmp, pars media plectra of columella; cpl(s), carpal(s); den, dentary; exoc, exoccipital; exoc.occ, occipital condyle of exoccipital; fpar, frontoparietal; max, maxilla; max.fp, facial process of maxilla; mmk, mentomeckelian; n, nasal; n.mp, maxillary process of nasal; npl, neopalatine; oc, otic capsule; prsph. ap, parasphenoid alary process; prsph.cp, parasphenoid cultriform process; prsph.pmp, parasphenoid posteromedial process; pmx, premaxilla; pmx.ap, premaxilla ascending process; pmx.lp, premaxilla lateral process; pmx.pp, premaxilla palatine process; povom, postchoanal portion of vomer; pro, prootic; prvom, prechoanal portion of vomer; pt.ar, pterygoid anterior ramus; pt.mr, pterygoid medial ramus; pt.vr, pterygoid ventral ramus; qj, quadratojugal; smx, septomaxilla; spheth, sphenethmoid; sq. or, squamosal otic ramus; sq.vr, squamosal ventral ramus; sq.zr, squamosal zygomatic ramus; tsl(s), tarsals; vt, vomerine teeth. https://doi.org/10.1371/journal.pone.0213314.g006

Fig 4 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 4. Mini mum gen. et sp. nov. in life and its habitat in Manombo Special Reserve. (a-c) ZSM 861/2014, holotype, in (a) anterolateral view on a thumbnail, (b) dorsolateral view on a leaf, (c) ventral view. (d, e) ZSM 862/2014, paratype, in (d) ventral view, and (e) lateral view on a thumbnail. (f, g) ZMB 83194, paratype, in (f) dorsolateral view, and (g) ventral view. (h) ZMB 81993, paratype, in dorsolateral view. (i) ZMA 20172 in posterodorsolateral view. (j) Habitat of the new species in Manombo Special Reserve. https://doi.org/10.1371/journal.pone.0213314.g004

Fig 2 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 2. Holotypes of the new species described in this paper and their hands. Whole specimens in dorsal (left) and ventral (right) view. Hand images not to scale. https://doi.org/10.1371/journal.pone.0213314.g002

Fig 5 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 5. One-second spectrograms and oscillograms of the calls of the new species described here. Insets represent the respective species but not the calling specimens. (a) Mini mum gen. et sp. nov., paratype ZMB 81993 from Manombo, (b) Mini scule gen. et sp. nov., ZSM 265/2018 from Sainte Luce, (c) Rhombophryne proportionalis sp. nov., part of a call (note series) of a specimen from Bepia campsite, Tsaratanana (not collected), (d) Anodonthyla eximia sp. nov., specimen not collected, from Maharira (Ranomafana). https://doi.org/10.1371/journal.pone.0213314.g005

Fig 3 in Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera

Fig 3. Currently known localities of the new taxa described in this paper. The base map is USGS SRTM 1-Arc second digital elevation model. https://doi.org/10.1371/journal.pone.0213314.g003

Fig. 2 in Reconciling ecological and phytogeographical spatial boundaries to clarify the limits of the montane and alpine regions of sub-Sahelian Africa

Fig. 2. High elevation flora and vegetation of the Afrotropics.A.Lower alpine vegetation (Sanetti Plateau, Bale Highlands, Ethiopia); B.Lobelia rhynchopetalum Hemsl., endemic to the lower alpine belt of Ethiopia; C. L. gibberoa Hemsl., a forest-dwelling giant lobelia of the montane belt, restricted to tropical Africa; D. Montane forest (Harenna Forest, Bale Highlands, Ethiopia).

Fig. 4 in Reconciling ecological and phytogeographical spatial boundaries to clarify the limits of the montane and alpine regions of sub-Sahelian Africa

Fig. 4. Schematic representation of the centres and sub-centres of the Cape element in sub-Sahelian Africa (from Carbutt, 2004; Carbutt and Edwards, 2012; updated from Weimarck, 1941). The high elevation sub-centres in particular are often fragmented, hence the need for two hyphenated names when considering two dominant enclaves of close proximity. The most modern and geographically accurate names have been used. For example, 'Abessinian Sub-centre' is now 'Ethiopian Sub-centre'; 'Rungwe Sub-centre' is now 'Nyika-Rungwe Subcentre'; 'Mitumba-Rwenzori Sub-centre' is an amalgamation of Weimarck's (1941) 'Katanga' and 'Kivu' Sub-centres, named after the Mitumba Highlands, and the dominant Rwenzori Mountains further north. The double-sided arrows denote possible dual-direction migration events that may have resulted in reciprocal exchange of taxa between centres.

Fig. 5 in Reconciling ecological and phytogeographical spatial boundaries to clarify the limits of the montane and alpine regions of sub-Sahelian Africa

Fig. 5. Schematic representation of the intervals between centres and sub-centres of the Cape element in sub-Sahelian Africa (from Carbutt, 2004; updated from Weimarck, 1941). Symbols: ▲, high elevation centres and sub-centres of the Cape element; ●, low elevation centre of the Cape element (Pondoland Centre). Most names are derived from the geographic regions in which the intervals occur.

Fig. 3 in Reconciling ecological and phytogeographical spatial boundaries to clarify the limits of the montane and alpine regions of sub-Sahelian Africa

Fig. 3. The Drakensberg Alpine Centre, southern Africa, as previously recognised. A. upper montane grasslands above Sani Pass, southern KwaZulu-Natal Drakensberg; B. near-endemic shrub, Euryops evansii Schltr. subsp. evansii, of the upper montane belt; C. endemic forb, Moraea alticola Goldblatt, of the lower alpine belt; D. lower alpine grasslands of Lesotho.

opencc-zeroDec 2014View details →

Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes

Aim: To develop a holistic biogeographical history of codfishes in the subfamily Gadinae based on historical relationships, ecological niche, and evolution of physiological tolerances. Two alternative diversification scenarios were tested in two co-distributed, Northern Hemisphere clades: (1) clade ancestors were temperate, and environmental niche has been conserved over evolutionary time, implying that speciation was driven by vicariance associated with ice sheet formation; and (2) clade ancestors were Arctic, and species convergently adapted to temperate environmental conditions, implying that speciation was driven by repeated adaption to temperate environments. Location: Northern Hemisphere Arctic and subarctic oceans. Methods: Fifty-five new sequences of four genes from 23 tissue samples were combined with 10 GenBank sequences to generate a time-calibrated phylogenetic hypothesis. Combining the phylogeny with information on species' ecological niche tolerances inferred from correlational models, I reconstructed ancestral environmental tolerances of each of the focal clades. These results were combined with Bayesian area-based biogeographical analysis and regional palaeoclimatic history to develop a holistic biogeographical history of Gadinae. Results: Of 18 environmental variables describing species' tolerances to salinity, temperature, sea ice concentration, and mixed layer depth, only mean, maximum and minimum sea bottom temperature, and mean and minimum sea surface temperature showed phylogenetic signal across Gadinae. Both ecological niche and geographical distributions of gadine fishes are largely conservative, but two clades contain both Pacific and Atlantic species. Focal clade divergence time estimates suggest a Pliocene origin for both, with further Pleistocene divergence. Main conclusions: Reconstructed ancestral environmental tolerances of crown cods and tomcods support a temperate origin of both groups. The timing of diversification of these two clades and the intolerance of temperate species to sea ice suggest that cyclical Arctic ice formation drove divergence. Future sea ice reduction may have dramatic consequences for distributions and persistence of commercially important species when currently allopatric temperate species come into secondary contact.

opencc-zeroSep 2021View details →

A genetically based ecological trade-off contributes to setting a geographic range limit

Understanding the ecological factors that shape geographic range limits and the evolutionary constraints that prevent populations from adaptively evolving beyond these limits is an unresolved question. Here, we investigated why the euryhaline fish, Poecila reticulata, is confined to freshwater within its native range, despite being tolerant of brackish water. We hypothesized that competitive interactions with a close relative, Poecilia picta, in brackish water prevents P. reticulata from colonizing brackish water. Using a combination of field transplant, common garden breeding, and laboratory behavior experiments we find support for this hypothesis, as P. reticulata are behaviorally subordinate and have lower survival in brackish water with P. picta. We also found a negative genetic correlation between P. reticulata growth in brackish water versus freshwater in the presence of P. picta, suggesting a genetically based trade-off between salinity tolerance and competitive ability could constrain adaptive evolution at the range limit.

publicAug 2021View details →

The limits of convergence: the roles of phylogeny and dietary ecology in shaping non-avian amniote skulls

Open the record for dataset details and reuse information.

publicJan 2016View details →

Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes

Open the record for dataset details and reuse information.

publicJun 2018View details →

Data from: Using data from related species to overcome spatial sampling bias and associated limitations in ecological niche modeling

Open the record for dataset details and reuse information.