scholarly journals Geographic range expansion of Oxyops vitiosa (Coleoptera: Curculionidae) to the Bahamian Archipelago

2008 ◽  
Keyword(s):  
Range Expansion ◽  
Geographic Range ◽  
Oxyops Vitiosa ◽  
Bahamian Archipelago

Geographic range expansion of tetrodotoxin in amphibians – First record in Atelopus hoogmoedi from the Guiana Shield

Toxicon ◽  
2018 ◽  
Vol 150 ◽  
pp. 175-179
Author(s):  
Dietrich Mebs ◽  
Max Lorentz ◽  
Mari Yotsu-Yamashita ◽  
Daniela C. Rößler ◽  
Raffael Ernst ◽  
...  
Keyword(s):  
Range Expansion ◽  
First Record ◽  
Geographic Range ◽  
Guiana Shield

Asymmetric geographic range expansion explains the latitudinal diversity gradients of four major taxa of marine plankton

Paleobiology ◽  
2017 ◽  
Vol 43 (2) ◽  
pp. 196-208 ◽  
Author(s):  
Matthew G. Powell ◽  
Douglas S. Glazier
Keyword(s):  
Range Expansion ◽  
Biological Diversity ◽  
Close Association ◽  
Planktonic Foraminifera ◽  
Geographic Range ◽  
Temperate Zone ◽  
Latitudinal Gradients ◽  
Polar Regions ◽  
Marine Plankton ◽  
Diversity Gradients

AbstractExtensive investigation of the close association between biological diversity and environmental temperature has not yet yielded a generally accepted, empirically validated mechanism to explain latitudinal gradients of species diversity, which occur in most taxa. Using the highly resolved late Cenozoic fossil records of four major taxa of marine plankton, we show that their gradients arise as a consequence of asymmetric geographic range expansion rather than latitudinal variation in diversification rate, as commonly believed. Neither per capita speciation nor extinction rates trend significantly with temperature or latitude for these marine plankton. Species of planktonic foraminifera and calcareous nannoplankton that originate in the temperate zone preferentially spread toward and arrive earlier in the tropics to produce a normal gradient with tropical diversity peaks; by contrast, temperate-zone originating species of diatoms and radiolarians preferentially spread toward and arrive earlier in polar regions to produce reversed gradients with high-latitude diversity peaks. Our results suggest that temperature affects latitudinal diversity gradients chiefly by its effect on species’ range limits rather than on probabilities of speciation and extinction. We show that this mechanism also appears to operate in various multicellular taxa, thus providing a widely applicable explanation for the origin of latitudinal diversity gradients.

scholarly journals Climate change impacts on pest ecology and risks to pasture resilience

2021 ◽  
Vol 17 ◽  
Author(s):  
Sarah Mansfield ◽  
Colin Ferguson ◽  
Philippa Gerard ◽  
David Hodges ◽  
John Kean ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Range Expansion ◽  
Insect Pests ◽  
Climate Change Impacts ◽  
Geographic Range ◽  
Pastoral Systems ◽  
Carbon Dioxide Levels ◽  
Farm System ◽  
Impacts Of Climate Change

It is well understood that damage by insect pests can have serious consequences for pasture resilience. However, the impacts of climate change on pastoral systems, the responses of insect pests, and implications for pest impact mitigation are unclear. This paper reviews pest responses to climate change, including direct impacts such as temperature and carbon dioxide levels, geographic range expansion, sleeper pests, and outbreaks resulting from disturbance such as drought and farm system changes. The paper concludes with a plea for transdisciplinary research into pasture resilience under climate change that has insect pests as an integral component – not as an afterthought.

Geographic Range Expansion of Exotic Birds

2009 ◽  
pp. 131-160
Author(s):  
Tim M. Blackburn ◽  
Julie L. Lockwood ◽  
Phillip Cassey
Keyword(s):  
Range Expansion ◽  
Geographic Range ◽  
Exotic Birds

scholarly journals Geographic Range Expansion for Rat Lungworm in North America

2015 ◽  
Vol 21 (7) ◽  
pp. 1234-1236 ◽  
Author(s):  
Emily M. York ◽  
James P. Creecy ◽  
Wayne D. Lord ◽  
William Caire
Keyword(s):  
North America ◽  
Range Expansion ◽  
Geographic Range ◽  
Rat Lungworm
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