Spatial Ecology of the Endangered Iguana, Cyclura lewisi, in a Disturbed Setting on Grand Cayman

Microhabitats and Population Densities of California Legless Lizards, with Comments on Effectiveness of Various Techniques for Estimating Numbers of Fossorial Reptiles

“…Iguana Capture and Attachment of Transmitters.-We initially located iguanas by walking transects consisting of roads and trails in the park, often during related research conducted throughout the entire study area (see Goodman, 2004). Therefore, only iguanas that used the park regularly were included in this study.…”

“…One researcher walked transects 1-8 times daily (mean 5 3.5, SD 5 2.8), with sampling spread over active hours of iguanas, 0700-1930. We also recorded incidental sightings of iguanas throughout the study site, including in natural habitats, while conducting focal animal observations and habitat surveys for related research (see Goodman, 2004). Locations of iguanas were recorded using GPS coordinates (Garmin GPS12XL) and, when possible, compass bearings to local landmarks.…”

“…Field records were from individuals captured primarily in pitfall traps at 18 sites in Highlands County, Florida, between 2001 and2004. Earthwatch volunteers assisted with installing and checking pitfall traps.…”

Habitat use of the endangered iguana Cyclura lewisi in a human-modified landscape on Grand Cayman

“…Parcels of natural habitat were categorised into the following subhabitats: buttonwood swamp (Conocarpus erectusdominated, flooded), logwood swamp (Haematoxylum campechianum-dominated, seasonally flooded), dry evergreen forest on rock substrate, dry evergreen forest on soil substrate, dry evergreen shrubland, and a mosaic of patches of swamp and evergreen forest. Descriptions of all subhabitats are given in Table 1 and in Goodman (2004).…”

Movement Behavior is Habitat Dependent in Invasive Jackson's Chameleons in Hawaii

“…This information can be used to model probability of spread and to establish biologically based pest management programs (Kowarik, 2003). However, due to behavioral plasticity (Relyea and Werner, 1999;Goodman et al, 2005;Janin et al, 2009;Semlitsch et al, 2012), application of data from one region to another is often ineffective. Therefore, comparative movement studies among multiple habitats can enhance the utility of conclusions drawn regarding habitat use (Constible et al, 2009).…”