Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

University of Kentucky

Abundance

Articles 1 - 5 of 5

Full-Text Articles in Life Sciences

Factors Affecting The Distribution Of Microlaena Stipoides On The Northern Tablelands Of New South Wales, D B. Magcale-Macandog, R.D B. Whalley Aug 2024

Factors Affecting The Distribution Of Microlaena Stipoides On The Northern Tablelands Of New South Wales, D B. Magcale-Macandog, R.D B. Whalley

IGC Proceedings (1993-2023)

The eJClent of and the factors affecting the disllibution of Microlaena sllpoldeJ on the Northern Tablelands of NSW were examined in a SHH:) of 102 paddocks on 33 properties. Relationships between the abundance of M. stilpoides and spatial, climatic and pasture management factors were determined udng 'X} tests. Paddocks with more abundant M. s,ipoides were obse1Yed in the eastern and southern parts of the Tablelands where alcitudc and rainfall are higher. Tree densit) also had a posilive association with its abundance as it grows well under shade. Cultivation and sowing of exotic pasture species initially eliminated 01 reduced the abundance …


Climate Variability In The Woodbush Granite Grasslands Of South Africa: Effects On Grassland Diversity, M. Muller, F. Siebert, A. Linstädter, D. I. Thompson, S. J. Siebert Oct 2021

Climate Variability In The Woodbush Granite Grasslands Of South Africa: Effects On Grassland Diversity, M. Muller, F. Siebert, A. Linstädter, D. I. Thompson, S. J. Siebert

IGC Proceedings (1993-2023)

South African old-growth grasslands are hyper-diverse ecosystems which evolved under naturally occurring rainfall variability. It is predicted that future precipitation patterns will become more variable, which could lead to increased frequencies of extreme and prolonged drought events. This study aimed to investigate the effects of climate variability on plant diversity of the fragmented pristine, mistbelt grasslands of the Woodbush Granite Grasslands (WGG) at Haenertsburg, South Africa. It has been reported that species composition has changed substantially in this area, as disturbance-tolerant species enter these systems or existing competitor species become more dominant. A Temporal Beta-diversity Index (TBI) was used to …


Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou Jun 2020

Testing The Neutral Theory Of Plant Communities In Subalpine Meadow, Xiaoguang Du, Shurong Zhou

IGC Proceedings (1993-2023)

No abstract provided.


Overgrazing Affects Arbuscular Mycorrhizae Diversity And Abundance In Patagonian Steppe, Natalie Von Dudinszky, M. N. Cabello, A. A. Grimoldi, S. Schalamuk, R. A. Golluscio Jun 2020

Overgrazing Affects Arbuscular Mycorrhizae Diversity And Abundance In Patagonian Steppe, Natalie Von Dudinszky, M. N. Cabello, A. A. Grimoldi, S. Schalamuk, R. A. Golluscio

IGC Proceedings (1993-2023)

No abstract provided.


Integrating Multiple Genetic Detection Methods To Estimate Population Density Of Social And Territorial Carnivores, Sean M. Murphy, Ben C. Augustine, Jennifer R. Adams, Lisette P. Waits, John J. Cox Oct 2018

Integrating Multiple Genetic Detection Methods To Estimate Population Density Of Social And Territorial Carnivores, Sean M. Murphy, Ben C. Augustine, Jennifer R. Adams, Lisette P. Waits, John J. Cox

Forestry and Natural Resources Faculty Publications

Spatial capture–recapture models can produce unbiased estimates of population density, but sparse detection data often plague studies of social and territorial carnivores. Integrating multiple types of detection data can improve estimation of the spatial scale parameter (σ), activity center locations, and density. Noninvasive genetic sampling is effective for detecting carnivores, but social structure and territoriality could cause differential detectability among population cohorts for different detection methods. Using three observation models, we evaluated the integration of genetic detection data from noninvasive hair and scat sampling of the social and territorial coyote (Canis latrans). Although precision of estimated density was …