Find research datasets worth reusing

Fig. 7 in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 7. Seasonal polyphenism in the dorsal wing color of male Atala, Eumaeus atala. Green (lef photo) is predominantly found in cooler winter and spring southeast Florida temperatures.

Fig. 5 in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 5. Eumaeus atala pupal development time (d) for different seasons is indicated by the different line styles. Two distinct groups of development are present, the warm season (summer to fall) and cool season (winter to spring).

Fig. 6 in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 6. Polyphenism in Atala, Eumaeus atala, pupae. Increased melanization is associated with cooler temperatures. All pupae were 10 d old when the photographs were taken.

Fig. 3 in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 3. Eumaeus atala egg development time (d) for different seasons is indicated by different line styles. A separation in development is starting to show between warm season (summer to fall) and cool season (winter to spring).

Fig. 2 in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 2. Seasonal temperatures as programmed in environmental chambers. A) Temperatures in the chambers were programmed to match Homestead, Miami temperatures as closely as possible (see discussion) and B) degree-day units were analyzed using a Baskerville–Emin adjustment (see discussion). Bars indicate standard error.

Fig. 1. Percival environmental chambers housing Eumaeus atala. A in Life history variations and seasonal polyphenism in Eumaeus atala (Lepidoptera: Lycaenidae)

Fig. 1. Percival environmental chambers housing Eumaeus atala. A) Interior view of fabric housing cages in the Percival chambers and B) plastic 'deli-box' larval cages inside with host plant material and young Eumaeus atala larvae.

Fig. 4 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient

Fig. 4. Changes in reproductive traits of female Heterandria bimaculata along an elevational gradient in Cusuco National Park, Honduras in summer 2013. Points represent actual values. Dashed lines represent fitted means from linear mixed models, accounting for nested effects of individual variability within sites, and total length of individuals. No fitted line is presented for reproductive allotment because this variable did not change significantly along the elevational gradient.

Fig. 3 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient

Fig. 3. Changes in physicochemical parameters of streams along an elevation gradient in Cusuco National Park, Honduras in summer 2013.

Fig. 2 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient

Fig. 2. Relationships between male and female body weights, embryo counts, ovary weights and total length of Heterandria bimaculata in Cusuco National Park, Honduras in summer 2013.

Fig. 1 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient

Fig. 1. (A) Mainland Central America, with a square representing the inset of (B), Cusuco National Park (gray) within the río Motagua (Guatemala) and río Chamelecón/Ulúa (Honduras) basins. (C) Sites (black dots) sampled from upstream to downstream on 6 tributaries to the río Motagua (west side) and río Ulua (east side) in Cusuco National Park, Honduras, Central America.

FIGURE 4 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 4 | Standard length frequency histograms and the corresponding von Bertalanffy growth function for Calophysus macropterus (sexed and unsexed individuals combined) in (A, B) the upper Putumayo River and in (C) the AMU (the Amazonas, lower Marañón and Ucayali rivers).

FIGURE 3 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 3 | Mean monthly GSI values (circles) of Calophysus macropterus females between 2013 and 2017 in relation with the water level (dotted line) in the upper Putumayo River (A) and the Amazonas, lower Marañón and Ucayali rivers (B).

FIGURE 2 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 2 | Size frequency distribution of Calophysus macropterus females and males caught over the study period in the Putumayo River (A) and the Amazonas, lower Marañón and Ucayali rivers (B).

FIGURE 1 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 1 | Geographic location of biological monitoring points for Calophysus macropterus at Puerto Leguízamo in the Putumayo River (Colombia) and Iquitos (Amazonas, lower Marañón and Ucayali rivers, AMU).

FIGURE 5 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 5 | Standard length at first sexual maturity for males (black triangles) and females (white circles) of Calophysus macropterus (A) in the upper Putumayo River and (B) in AMU (the Amazonas, lower Marañón and Ucayali rivers).

FIGURE 7 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon

FIGURE 7 | Standard length-converted catch curves (SL) and mortality estimates for Calophysus macropterus (A) females, (B) males and all individuals (sexed and unsexed) combined (C) in the Amazonas, lower Marañón and lower Ucayali rivers, calculated from the VBGF parameters at a mean temperature of 27°C. Z, M and F represent the instantaneous rates of total, natural and fishing mortality, respectively. E is the exploitation rate (E = F.Z-1). Black dots = data points in the curve on which the regression was fitted.

opencc-zeroAug 2021View details →

dryad40/100

Slower environmental cycles maintain greater life-history variation within populations

<p>Populations in nature are comprised of individual life histories, whose variation underpins ecological and evolutionary processes. Yet the forces of environmental selection that shape intrapopulation life-history variation are still not well understood, and efforts have largely focused on random (stochastic) fluctuations of the environment. However, a ubiquitous mode of environmental fluctuation in nature is cyclical, whose periodicities can change independently of stochasticity. Here we test theoretically-based hypotheses for whether shortened ('Fast') or lengthened ('Slow') environmental cycles should generate higher intrapopulation variation of life history phenotypes. We show, through a combination of individual-based modelling and a multi-generational laboratory selection experiment using the tidepool copepod Tigriopus californicus, that slower environmental cycles maintain higher levels of intrapopulation variation. Surprisingly, the effect of environmental periodicity on variation was much stronger than that of stochasticity. Thus, our results show that periodicity is an important facet of fluctuating environments for life-history variation.</p>

opencc-by-4.0Dec 2008View details →

Fig. 4 in Life-history of the South American darter, Characidium pterostictum (Crenuchidae): evidence for small scale spatial variation in a piedmont stream

Fig. 4. Seasonal variation in proportion (%) of maturity stages for Characidium pterostictum at Lajeado river (southern Brazil). Values for PA and PB were pooled.

opencc-by-4.0Dec 2008View details →

Fig. 3 in Life-history of the South American darter, Characidium pterostictum (Crenuchidae): evidence for small scale spatial variation in a piedmont stream

Fig. 3. Seasonal variation of the gonadosomatic index (GSI) of Characidium pterostictum in Lajeado river, southern Brazil.