The influence of ambient temperature, seed composition and body size on water balance and seed selection in coexisting heteromyid rodents

Oecologia ◽  
1988 ◽  
Vol 75 (4) ◽  
pp. 521-526 ◽  
Author(s):  
A. J. Hulbert ◽  
Richard E. MacMillen
Keyword(s):  
Body Size ◽  
Water Balance ◽  
Ambient Temperature ◽  
Seed Composition ◽  
Seed Selection ◽  
Heteromyid Rodents

scholarly journals Insect body size changes under future warming projections: a case study of Chironomidae (Insecta: Diptera)

Hydrobiologia ◽  
2021 ◽  
Author(s):  
Rungtip Wonglersak ◽  
Phillip B. Fenberg ◽  
Peter G. Langdon ◽  
Stephen J. Brooks ◽  
Benjamin W. Price
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
Wing Length ◽  
The Body ◽  
Mesocosm Experiments ◽  
Future Warming ◽  
Increasing Temperature ◽  
Emergence Date ◽  
Average Body

AbstractChironomids are a useful group for investigating body size responses to warming due to their high local abundance and sensitivity to environmental change. We collected specimens of six species of chironomids every 2 weeks over a 2-year period (2017–2018) from mesocosm experiments using five ponds at ambient temperature and five ponds at 4°C higher than ambient temperature. We investigated (1) wing length responses to temperature within species and between sexes using a regression analysis, (2) interspecific body size responses to test whether the body size of species influences sensitivity to warming, and (3) the correlation between emergence date and wing length. We found a significantly shorter wing length with increasing temperature in both sexes of Procladius crassinervis and Tanytarsus nemorosus, in males of Polypedilum sordens, but no significant relationship in the other three species studied. The average body size of a species affects the magnitude of the temperature-size responses in both sexes, with larger species shrinking disproportionately more with increasing temperature. There was a significant decline in wing length with emergence date across most species studied (excluding Polypedilum nubeculosum and P. sordens), indicating that individuals emerging later in the season tend to be smaller.

scholarly journals The influence of the starvation-predation trade-off on the relationship between ambient temperature and body size among endotherms

2015 ◽  
Vol 43 (4) ◽  
pp. 809-819 ◽  
Author(s):  
John M. McNamara ◽  
Andrew D. Higginson ◽  
Simon Verhulst
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
Trade Off ◽  
The Relationship

scholarly journals Effect of Temperature on the Size of Sedimentary Remains of Littoral Chydorids

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1309
Author(s):  
János L. Korponai ◽  
Csilla Kövér ◽  
Charo López-Blanco ◽  
István Gyulai ◽  
László Forró ◽  
...  
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
Lacustrine Sediments ◽  
The Body ◽  
Effect Of Temperature ◽  
Body Parts ◽  
Morphological Response ◽  
Subfossil Remains ◽  
Different Response ◽  
Increasing Temperature

The body size of aquatic invertebrates is, to a great extent, dependent on ambient temperature, but size distributions are also determined by other factors like food supply and predation. The effect of temperature on organisms is formulated in the temperature–size hypothesis, which predicts a smaller body size with increasing temperature. In this study, the effect of temperature on the subfossil remains of three littoral Cladocera (Alona affnis, A. quadrangularis, and Chydorus cf. sphaericus) was investigated. Exoskeletal remains of these species can be found in large numbers in lacustrine sediments and over a wide north–south range in Europe. The total length of both headshield and postabdomen for A. affinis and A. quadrangularis and carapace length for C. cf. sphaericus were measured to observe their response to changes in latitude and temperature. A different response to ambient temperature in the growth of body parts was observed. The size of the headshields of both Alona species and of the carapace of Chydorus was significantly larger in colder regions as opposed to warm ones. It turned out that the postabdomen was not a good predictor of ambient temperature. While the sizes of all remains increased with latitude, the sizes of the Alona remains was smaller in the mountain lakes of the Southern Carpathians than in other cold lakes, in this case in Finland, a fact indicative of the importance of other factors on size distribution. This study demonstrates that a morphological response to climate is present in littoral cladocerans, and, therefore, changes in the length of headshield and carapace may be used as a proxy for climate changes in paleolimnological records.

Dynamic Thermal Balance in the Leaf‐Eared Mouse: The Interplay among Ambient Temperature, Body Size, and Behavior

2002 ◽  
Vol 75 (4) ◽  
pp. 396-404 ◽  
Author(s):  
Diego M. Bustamante ◽  
Roberto F. Nespolo ◽  
Enrico L. Rezende ◽  
Francisco Bozinovic
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
Thermal Balance ◽  
And Behavior

scholarly journals Life cycle of natural populations of Metriocnemus (Inermipupa) carmencitabertarum Langton & Cobo 1997 (Diptera: Chironomidae) in The Netherlands: indications for a southern origin?

2017 ◽  
pp. 55-66
Author(s):  
Jan Kuper
Keyword(s):  
Life History ◽  
Body Size ◽  
The Netherlands ◽  
Ambient Temperature ◽  
Larval Development ◽  
Seasonal Pattern ◽  
Water Levels ◽  
Water Volume ◽  
Life History Characteristics ◽  
Two Populations

The life-history and behaviour of the chironomid Metriocnemus (Inermipupa) carmencitabertarum was studied for three years and a comparison was made between two populations in the Netherlands. Key life-history characteristics are reported, including the number of generations (2-5 generations) and duration of larval development (19-55 days). Life-history characteristics differed between the two populations and between generations within a population. These differences were likely related to differences in competitors (mainly Chironomus riparius Meigen) and thermal characteristics of the habitat from variations in water volume and ambient temperature. Results suggested a diapause in summer, when water levels dropped, and not in winter. A clear seasonal pattern in body size was found with pupal length increasing steeply at the beginning of the summer. The increase in body size was positively correlated with mean ambient temperature during larval development. This correlation is in contrast with the Temperature-Size Rule (TSR) in ectotherms, which postulates a negative correlation between temperature and adult body size. The chance of ectotherm predators being present in the habitat is low, which may explain this feature. Life history characteristics supported a recent northward range expansionfor M. (I.) carmencitabertarum due to warmer winters. If correct, it is predicted that the species will be found in Scotland and northern Germany and/or southern Denmark in the near future.

Evaluation of the functionality of a constructed wetland system under semidesert and saline conditions

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Erich Dietmar Rössel-Kipping ◽  
Norma Angelica Gaytan-Saldaña ◽  
Hipólito Ortiz-Laurel ◽  
Rodolfo Cisneros-Pérez ◽  
Rodolfo Cisneros-Almaza
Keyword(s):  
Biological Activity ◽  
Water Stress ◽  
Water Balance ◽  
Ambient Temperature ◽  
Constructed Wetland ◽  
Water Inflow ◽  
Local Conditions ◽  
Salinity Effect ◽  
Precipitation Water ◽  
Wetland System

Objective: Evaluate the functionality of a constructed wetland used to treat the wastewater from a school by recording water inflow and outflow, in addition to the local conditions that affect its operation and compliance with environmentalregulations.Design/methodology/approach: Verification of the installation specifications; programmed measurements of the inflowoutflowwater balance and ambient temperature; and analysis of the salinity effect and wetland performance.Results: The high evapotranspiration at the site contributed to the decrease in the resident volume of water within the wetland, causing water stress to the vegetation, not complying with the regulation about the reduction/elimination of water pollutants.Study limitations/implications: The high daytime temperature significantly decreased the daily inflow volume of wastewater, even after adding the precipitation water, which affects the biological activity of the vegetation; therefore, the study was performed on half of the wetland surface. Thus, the wetland was unable to reduce the pollutants to safe levels.Findings/conclusions: The amount of recovered treated water is minimal. The inflow is five times lower than the designed flow of the construction. The weekly log was appropriate to observe fluctuations in the water balance and its effect on the vegetation within the wetland.

scholarly journals The complex effects of geography, ambient temperature, and North Atlantic Oscillation on the body size of Arctic hares in Greenland

2017 ◽  
Vol 120 (4) ◽  
pp. 909-918
Author(s):  
Elad Yom-Tov ◽  
Yoram Yom-Tov ◽  
Shlomith Yom-Tov ◽  
Mogens Andersen ◽  
Daniel Rosenfeld ◽  
...  
Keyword(s):  
Body Size ◽  
Ambient Temperature ◽  
North Atlantic Oscillation ◽  
North Atlantic ◽  
The Body

Ambient temperature alters body size and gut microbiota of Xenopus tropicalis

2019 ◽  
Vol 63 (6) ◽  
pp. 915-925 ◽  
Author(s):  
Jiaying Li ◽  
Junpeng Rui ◽  
Yulong Li ◽  
Na Tang ◽  
Songping Zhan ◽  
...  
Keyword(s):  
Body Size ◽  
Gut Microbiota ◽  
Ambient Temperature ◽  
Xenopus Tropicalis

Endothermy and chorusing behaviour in the African platypleurine cicada Pycna semiclara (Germar, 1834) (Hemiptera: Cicadidae)

2003 ◽  
Vol 81 (8) ◽  
pp. 1437-1444 ◽  
Author(s):  
Martin H Villet ◽  
Allen F Sanborn ◽  
Polly K Phillips
Keyword(s):  
Body Size ◽  
Body Temperature ◽  
Ambient Temperature ◽  
Acoustic Communication ◽  
Acoustic Signals ◽  
Calling Song ◽  
Atmospheric Conditions ◽  
Temperature Changes ◽  
Temporal Characteristics ◽  
Calling Activity

Cicadas use acoustic signals to find mates and therefore offer a phylogenetically independent opportunity to test the generality of ideas about acoustic communication that were developed from studies of other animals. Pycna semiclara (Germar, 1834) (Hemiptera: Cicadidae) is a forest-dwelling platypleurine cicada that uses its calling song to form choruses and attract mates. Additionally, P. semiclara produces an encounter call that is involved in courtship and also in spacing males within choruses. Males generally call from exposed trunks and branches within the understory but clear of the undergrowth and fight with other males that call within about 50 cm of them. Choruses sing sporadically throughout the day but focus most of their calling activity into half-hour bouts at dawn and dusk. Body size and ambient temperature had no significant effect on spectral or temporal characteristics of the calling song. Body temperature measurements indicate that P. semiclara thermoregulates endothermically, with a body temperature of more than 22 °C above ambient temperature being measured during calling activity at dusk. Such endothermy provides an advantage to the cicadas by allowing them to call during crepuscular hours when atmospheric conditions are most optimal for acoustic communication and predation risks are minimal. Coincidentally, endogenously regulating body temperature allows the temporal characteristics of the call to be unaffected by ambient temperature changes.

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