870 research outputs found
Ecomorphological Variation in Three Species of Cybotoid Anoles
© 2018 by The Herpetologists' League, Inc. Caribbean Anolis lizards exhibit a complex suite of ecological, morphological, and behavioral traits that allow their specialization to particular microhabitats. These microhabitat specialists, called ecomorphs, have independently evolved on the four islands of the Greater Antilles, and diversification among anole ecomorphs has been the focus of many studies. Yet, habitat specialization has also occurred among species within the same ecomorph group. Here, we examined ecological, morphological, and behavioral divergence in three Hispaniolan trunk-ground species, the cybotoid anoles: Anolis cybotes, A. marcanoi, and A. longitibialis. We found differences in limb morphology, locomotor behavior, and perch use among the three cybotoid species that mirror differences across the ecomorphs. Among these species of cybotoids, those that have longer limbs tend to move less frequently, occupy broader perches, and have smaller fourth toes with fewer lamellae. We also observed that the species with greater male-biased size dimorphism had larger heads, smaller dewlaps, and smaller testes. These results are consistent with the predictions of sexual selection theory, in that species with large male body size may have larger heads because of increased male-male combat, and smaller testes potentially attributable to a trade-off between pre- and postcopulatory selection. Overall, our study suggests that a combination of local adaptation to different structural habitats and sexual selection might produce ecomorphological diversification within cybotoid anoles of the same ecomorph group
Python Patrol: Combatting The Problem of Evasive Non-Native Snakes in Florida
The Florida hotspot of non-native invasive species has long been recognized as a fascinating, yet perplexing environmental issue since the late 1900s. After decades of patchwork efforts by the federal and state government, it has become clear that a more holistic approach must be taken to help eradicate the Burmese Pythons that have overtaken Southern Florida. This article highlights the prior efforts taken federally and state-wide to combat this issue and assesses the current gaps in these efforts and what must be done to achieve a more holistic approach. Other states are used as points of comparison in regard to their legislation and handling of non-native invasive species in order to display effective or ineffective efforts. As it currently stands, the environment and ecosystem of Southern Florida are suffering immense devastation at the hands of this non-native invasive species and something must be done to control, contain, and hopefully eradicate the issue at-hand
Python Patrol: Combatting The Problem of Evasive Non-Native Snakes in Florida
The Florida hotspot of non-native invasive species has long been recognized as a fascinating, yet perplexing environmental issue since the late 1900s. After decades of patchwork efforts by the federal and state government, it has become clear that a more holistic approach must be taken to help eradicate the Burmese Pythons that have overtaken Southern Florida. This article highlights the prior efforts taken federally and state-wide to combat this issue and assesses the current gaps in these efforts and what must be done to achieve a more holistic approach. Other states are used as points of comparison in regard to their legislation and handling of non-native invasive species in order to display effective or ineffective efforts. As it currently stands, the environment and ecosystem of Southern Florida are suffering immense devastation at the hands of this non-native invasive species and something must be done to control, contain, and hopefully eradicate the issue at-hand
For Goodness’ Snake
Caring for the animal kingdom’s most misunderstood membe
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