scholarly journals Different male mate location behaviour of the Glanville fritillary butterfly in different landscapes in the Tianshan Mountains, northwestern China

2019 ◽  
Vol 24 (3) ◽  
pp. 129-139 ◽  
Author(s):  
Yan Zhou ◽  
Chang Xu ◽  
Houqiang Chen ◽  
Dandan Zhang ◽  
Yu Long ◽  
...  
Keyword(s):  
Temporal Distribution ◽  
Forest Edge ◽  
Tianshan Mountains ◽  
Northwestern China ◽  
Mate Location ◽  
Ambient Temperatures ◽  
Glanville Fritillary Butterfly ◽  
Male Mate ◽  
Almost All ◽  
Lower Tolerance

In a previous study most males of the Glanville fritillary butterfly (Melitaea cinxia) were caught in valleys, whereas almost all females were distributed on slopes in the Tianshan Mountains, northwestern China. To help understand this phenomenon, male mate location behaviours were observed in different landscapes of the Tianshan Mountains. In valleys, males exhibited perching behaviour. On slopes, spatial distribution of males showed patrolling behaviour on meadows, but intermediate behaviour between perching and patrolling at forest edge. The temporal distribution of males also varied, being found on slopes from 7:00 to 18:00, but in valleys from 8:00 to 13:00 each day. Ambient temperatures were higher on slopes than those in valleys between 8:00 to 13:00. Males exhibited lower tolerance to high temperature than females, leading to the conclusion that valleys are more likely to be used by males as thermoregulation sites, rather than for mating.

scholarly journals Myrmica scabrinodis as a possible host of Myrmica hirsuta (Hymenoptera: Formicidae)

2013 ◽  
Vol 24 (3) ◽  
pp. 140-141
Author(s):  
Pavel Pech ◽  
Kristýna Prusková
Keyword(s):  
Temporal Distribution ◽  
Forest Edge ◽  
Tianshan Mountains ◽  
Mate Location ◽  
Ambient Temperatures ◽  
Glanville Fritillary Butterfly ◽  
Male Mate ◽  
Almost All ◽  
Myrmica Scabrinodis ◽  
Lower Tolerance

In a previous study most males of the Glanville fritillary butterfly (Melitaea cinxia) were caught in valleys, whereas almost all females were distributed on slopes in the Tianshan Mountains, northwestern China. To help understand this phenomenon, male mate location behaviours were observed in different landscapes of the Tianshan Mountains. In valleys, males exhibited perching behaviour. On slopes, spatial distribution of males showed patrolling behaviour on meadows, but intermediate behaviour between perching and patrolling at forest edge. The temporal distribution of males also varied, being found on slopes from 7:00 to 18:00, but in valleys from 8:00 to 13:00 each day. Ambient temperatures were higher on slopes than those in valleys between 8:00 to 13:00. Males exhibited lower tolerance to high temperature than females, leading to the conclusion that valleys are more likely to be used by males as thermoregulation sites, rather than for mating.

scholarly journals Response of altitudinal vegetation belts of the Tianshan Mountains in northwestern China to climate change during 1989–2015

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yong Zhang ◽  
Lu-yu Liu ◽  
Yi Liu ◽  
Man Zhang ◽  
Cheng-bang An
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Global Climate ◽  
Animal Husbandry ◽  
Forest Tree ◽  
Tianshan Mountains ◽  
Northwestern China ◽  
Temperature And Precipitation ◽  
Altitudinal Belts ◽  
The Impact

AbstractWithin the mountain altitudinal vegetation belts, the shift of forest tree lines and subalpine steppe belts to high altitudes constitutes an obvious response to global climate change. However, whether or not similar changes occur in steppe belts (low altitude) and nival belts in different areas within mountain systems remain undetermined. It is also unknown if these, responses to climate change are consistent. Here, using Landsat remote sensing images from 1989 to 2015, we obtained the spatial distribution of altitudinal vegetation belts in different periods of the Tianshan Mountains in Northwestern China. We suggest that the responses from different altitudinal vegetation belts to global climate change are different. The changes in the vegetation belts at low altitudes are spatially different. In high-altitude regions (higher than the forest belts), however, the trend of different altitudinal belts is consistent. Specifically, we focused on analyses of the impact of changes in temperature and precipitation on the nival belts, desert steppe belts, and montane steppe belts. The results demonstrated that the temperature in the study area exhibited an increasing trend, and is the main factor of altitudinal vegetation belts change in the Tianshan Mountains. In the context of a significant increase in temperature, the upper limit of the montane steppe in the eastern and central parts will shift to lower altitudes, which may limit the development of local animal husbandry. The montane steppe in the west, however, exhibits the opposite trend, which may augment the carrying capacity of pastures and promote the development of local animal husbandry. The lower limit of the nival belt will further increase in all studied areas, which may lead to an increase in surface runoff in the central and western regions.

scholarly journals Phase separation during blood spreading

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Houssine Benabdelhalim ◽  
David Brutin
Keyword(s):  
Phase Separation ◽  
Relative Humidity ◽  
Whole Blood ◽  
Crime Scene ◽  
Blood Pool ◽  
Ambient Temperatures ◽  
Surrounding Environment ◽  
Crime Scene Investigators ◽  
Almost All ◽  
Pool Area

AbstractBlood pools can spread on several types of substrates depending on the surrounding environment and conditions. Understanding the influence of these parameters on the spreading of blood pools can provide crime scene investigators with useful information. The focus of the present study is on phase separation, that is, when the serum spreads outside the main blood pool. For this purpose, blood pools with constant initial masses on wooden floors that were either varnished or not were created at ambient temperatures of $$21~^{\circ }\hbox {C}$$ 21 ∘ C , $$29~^{\circ }\hbox {C}$$ 29 ∘ C , and $$37~^{\circ }\hbox {C}$$ 37 ∘ C with a relative humidity varying from 20 to 90%. The range $$21~^{\circ }\hbox {C}$$ 21 ∘ C to $$37~^{\circ }\hbox {C}$$ 37 ∘ C covers almost all worldwide indoor cases. The same whole blood from the same donor was used for all experiments. As a result, an increase in relative humidity was found to result in an increase in the final pool area. In addition, at the three different experimental temperatures, the serum spread outside the main pool at relative humidity levels above 50%. This phase separation is more significant on varnished substrates, and does not lead to any changes in the drying morphology. This phenomenon is explained by the competition between coagulation and evaporation.

Analysis of the Composition and Characteristics of Culturable Endophytic Bacteria Within Subnival Plants of the Tianshan Mountains, Northwestern China

2010 ◽  
Vol 62 (3) ◽  
pp. 923-932 ◽  
Author(s):  
Hong Mei Sheng ◽  
Hong Shan Gao ◽  
Lin Gui Xue ◽  
Shuo Ding ◽  
Chun Li Song ◽  
...  
Keyword(s):  
Endophytic Bacteria ◽  
Tianshan Mountains ◽  
Northwestern China

Unraveling the Hydrology of the Glacierized Kaidu Basin by Integrating Multisource Data in the Tianshan Mountains, Northwestern China

2018 ◽  
Vol 54 (1) ◽  
pp. 557-580 ◽  
Author(s):  
Yan‐Jun Shen ◽  
Yanjun Shen ◽  
Manfred Fink ◽  
Sven Kralisch ◽  
Alexander Brenning
Keyword(s):  
Tianshan Mountains ◽  
Northwestern China

Habitat utilization of the Glanville fritillary butterfly in the Tianshan Mountains, China, and its implication for conservation

2011 ◽  
Vol 16 (2) ◽  
pp. 207-214 ◽  
Author(s):  
Yan Zhou ◽  
Yundong Cao ◽  
Houqiang Chen ◽  
Yu Long ◽  
Fengming Yan ◽  
...  
Keyword(s):  
Habitat Utilization ◽  
Tianshan Mountains ◽  
Glanville Fritillary Butterfly
Sign in / Sign up

Export Citation Format

Share Document